first commit

.firebaserc

@@ -0,0 +1,5 @@
+{
+  "projects": {
+    "default": "flutterpuzzle-eaf89"
+  }
+}

.gitignore

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+# Miscellaneous
+*.class
+*.log
+*.pyc
+*.swp
+.DS_Store
+.atom/
+.buildlog/
+.history
+.svn/
+
+# IntelliJ related
+*.iml
+*.ipr
+*.iws
+.idea/
+
+# The .vscode folder contains launch configuration and tasks you configure in
+# VS Code which you may wish to be included in version control, so this line
+# is commented out by default.
+#.vscode/
+
+# Flutter/Dart/Pub related
+**/doc/api/
+**/ios/Flutter/.last_build_id
+.dart_tool/
+.flutter-plugins
+.flutter-plugins-dependencies
+.packages
+.pub-cache/
+.pub/
+/build/
+
+# Web related
+lib/generated_plugin_registrant.dart
+
+# Symbolication related
+app.*.symbols
+
+# Obfuscation related
+app.*.map.json
+
+# Android Studio will place build artifacts here
+/android/app/debug
+/android/app/profile
+/android/app/release
+lib/firebase_options.dart
+.firebase
+.vscode/settings.json

.metadata

@@ -0,0 +1,10 @@
+# This file tracks properties of this Flutter project.
+# Used by Flutter tool to assess capabilities and perform upgrades etc.
+#
+# This file should be version controlled and should not be manually edited.
+
+version:
+  revision: 77d935af4db863f6abd0b9c31c7e6df2a13de57b
+  channel: stable
+
+project_type: app

Auto_solver_README.md

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+# Auto solver implementation with A-star
+
+The board is represented as a 1D array initially, which is converted to a 2D matrix(list of list of int). 
+
+Lets understand the implementation with a 3 * 3 slide puzzle. However, this will work for any nXn slide puzzle.
+
+```
+[1 2 3 4 5 6 7 8 ]
+
+Let's use the A star algorithm to solve the 8 puzzle problem.
+
+Let the initial state be
+
+[]
+
+Let the goal state be 
+
+[]
+
+The search tree for the initial state will look like this
+
+At each step, we move our empty block either left or down. We need to make sure we do not reach the original state through these moves, as they can lead to infinite loops.
+
+There are two entities we need to keep into mind
+
+G  is the number of steps required to reach the goal state from the initial state. Estimated number of steps from current state to goal state.
+
+H is Manhattan distance. It is the estimated distance to goal. 
+
+It can be calculated by adding the difference in the row and column for all the blocks of the initial state from the goal state.
+
+Identify the path with the minimum g+h.
+
+
+These are the variables in `puzzle_solver.dart` :
+
+* queue - Priority queue
+* visited - set
+* goal_states - list
+* root - object of Node class
+* board: board
+* previous: null,
+* heuristic: manhattan(board, goalStates[currGoal])
+* depth: int
+
+>Each node can have maximum of 4 children, the graph fill further expand in a similar fashion with each child pointing to the parent using pointer.
+
+>The g score here, which is the cost of the move will increase by 1 at each depth since each tile sliding to the blank space represents one move and in the end we need to get the optimal moves for the puzzle instance, this basically mean that we have to add 1 to the g score of the parent before storing it in the child nodes.
+
+>Heuristics returns the number of tiles that are not in their final position
+
+>Manhattan Distance of a tile is the distance or the number of slides/tiles away it is from it’s goal state.Thus, for a certain state the Manhattan distance will be the sum of the Manhattan distances of all the tiles except the blank tile.
+
+Functions :
+
+* rowColGoalStates() - Returns the goal states for the slide puzzle
+
+queue is initialised with the first node object, the initial board configuration.
+
+We loop till the queue isnt empty.
+
+Inside the loop, we pop an element from the top.
+
+If it possible to reach the goal state from that configuration
+

LICENSE

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+MIT License
+
+Copyright (c) 2022 Soumi Bardhan, Souvik Biswas
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.

README.md

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+# Flutter Puzzle
+
+[![Codemagic build status](https://api.codemagic.io/apps/61f7d22dafa5dd12bdc7c1bf/61f7d22dafa5dd12bdc7c1be/status_badge.svg)](https://codemagic.io/apps/61f7d22dafa5dd12bdc7c1bf/61f7d22dafa5dd12bdc7c1be/latest_build)
+
+> Web App link: https://flutterpuzzle.codemagic.app
+
+![](screenshots/photo_mode.gif)
+
+Playing a game or solving a puzzle is always fun when you share with friends. We have created a puzzle that consists of three main modes:
+
+* **Normal mode:** The classic slide puzzle configuration.
+* **Photo mode:** Ability to generate puzzles from any image uploaded.
+* **Multiplayer mode:** Play with others in a competitive head-to-head multiplayer mode.
+
+The puzzle also has an auto solver built-in, it uses the A* algorithm along with some pretty neat tricks to solve the puzzle in the lowest possible moves.
+
+A full explanation of how the A* algorithm works is [here](https://youtu.be/nwtOWpSKGHc).
+
+The puzzle uses **Rive** to display an animated Dash beside the puzzle.
+
+**Riverpod** is used for state management inside the puzzle. The app has pretty challenging state management as there are three modes and the puzzle state is persisted across both the photo mode and the multiplayer mode.
+
+We also used a color palette generator package that can create an entire color palette from just an image, it is used in photo mode to change the theme of the screen according to the image selected.
+
+## Screenshots
+
+**Normal mode:**
+
+![](screenshots/puzzle_normal.png)
+
+**Photo mode:**
+
+![](screenshots/puzzle_photo.png)
+
+**Multiplayer mode:**
+
+![](screenshots/puzzle_multiplayer_1.png)
+
+![](screenshots/puzzle_multiplayer.png)
+
+
+## License
+
+Copyright (c) 2022 Soumi Bardhan, Souvik Biswas
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.

analysis_options.yaml

@@ -0,0 +1,29 @@
+# This file configures the analyzer, which statically analyzes Dart code to
+# check for errors, warnings, and lints.
+#
+# The issues identified by the analyzer are surfaced in the UI of Dart-enabled
+# IDEs (https://dart.dev/tools#ides-and-editors). The analyzer can also be
+# invoked from the command line by running `flutter analyze`.
+
+# The following line activates a set of recommended lints for Flutter apps,
+# packages, and plugins designed to encourage good coding practices.
+include: package:flutter_lints/flutter.yaml
+
+linter:
+  # The lint rules applied to this project can be customized in the
+  # section below to disable rules from the `package:flutter_lints/flutter.yaml`
+  # included above or to enable additional rules. A list of all available lints
+  # and their documentation is published at
+  # https://dart-lang.github.io/linter/lints/index.html.
+  #
+  # Instead of disabling a lint rule for the entire project in the
+  # section below, it can also be suppressed for a single line of code
+  # or a specific dart file by using the `// ignore: name_of_lint` and
+  # `// ignore_for_file: name_of_lint` syntax on the line or in the file
+  # producing the lint.
+  rules:
+    # avoid_print: false  # Uncomment to disable the `avoid_print` rule
+    # prefer_single_quotes: true  # Uncomment to enable the `prefer_single_quotes` rule
+
+# Additional information about this file can be found at
+# https://dart.dev/guides/language/analysis-options

android/.gitignore

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+gradle-wrapper.jar
+/.gradle
+/captures/
+/gradlew
+/gradlew.bat
+/local.properties
+GeneratedPluginRegistrant.java
+
+# Remember to never publicly share your keystore.
+# See https://flutter.dev/docs/deployment/android#reference-the-keystore-from-the-app
+key.properties
+**/*.keystore
+**/*.jks

android/app/build.gradle

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+def localProperties = new Properties()
+def localPropertiesFile = rootProject.file('local.properties')
+if (localPropertiesFile.exists()) {
+    localPropertiesFile.withReader('UTF-8') { reader ->
+        localProperties.load(reader)
+    }
+}
+
+def flutterRoot = localProperties.getProperty('flutter.sdk')
+if (flutterRoot == null) {
+    throw new GradleException("Flutter SDK not found. Define location with flutter.sdk in the local.properties file.")
+}
+
+def flutterVersionCode = localProperties.getProperty('flutter.versionCode')
+if (flutterVersionCode == null) {
+    flutterVersionCode = '1'
+}
+
+def flutterVersionName = localProperties.getProperty('flutter.versionName')
+if (flutterVersionName == null) {
+    flutterVersionName = '1.0'
+}
+
+apply plugin: 'com.android.application'
+apply plugin: 'kotlin-android'
+apply from: "$flutterRoot/packages/flutter_tools/gradle/flutter.gradle"
+
+android {
+    compileSdkVersion flutter.compileSdkVersion
+
+    compileOptions {
+        sourceCompatibility JavaVersion.VERSION_1_8
+        targetCompatibility JavaVersion.VERSION_1_8
+    }
+
+    kotlinOptions {
+        jvmTarget = '1.8'
+    }
+
+    sourceSets {
+        main.java.srcDirs += 'src/main/kotlin'
+    }
+
+    defaultConfig {
+        // TODO: Specify your own unique Application ID (https://developer.android.com/studio/build/application-id.html).
+        applicationId "com.souvikbiswas.my_flutter_puzzle"
+        minSdkVersion flutter.minSdkVersion
+        targetSdkVersion flutter.targetSdkVersion
+        versionCode flutterVersionCode.toInteger()
+        versionName flutterVersionName
+    }
+
+    buildTypes {
+        release {
+            // TODO: Add your own signing config for the release build.
+            // Signing with the debug keys for now, so `flutter run --release` works.
+            signingConfig signingConfigs.debug
+        }
+    }
+}
+
+flutter {
+    source '../..'
+}
+
+dependencies {
+    implementation "org.jetbrains.kotlin:kotlin-stdlib-jdk7:$kotlin_version"
+}

android/app/src/debug/AndroidManifest.xml

@@ -0,0 +1,7 @@
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+    package="com.souvikbiswas.my_flutter_puzzle">
+    <!-- Flutter needs it to communicate with the running application
+         to allow setting breakpoints, to provide hot reload, etc.
+    -->
+    <uses-permission android:name="android.permission.INTERNET"/>
+</manifest>

android/app/src/main/AndroidManifest.xml

@@ -0,0 +1,34 @@
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+    package="com.souvikbiswas.my_flutter_puzzle">
+   <application
+        android:label="my_flutter_puzzle"
+        android:name="${applicationName}"
+        android:icon="@mipmap/ic_launcher">
+        <activity
+            android:name=".MainActivity"
+            android:exported="true"
+            android:launchMode="singleTop"
+            android:theme="@style/LaunchTheme"
+            android:configChanges="orientation|keyboardHidden|keyboard|screenSize|smallestScreenSize|locale|layoutDirection|fontScale|screenLayout|density|uiMode"
+            android:hardwareAccelerated="true"
+            android:windowSoftInputMode="adjustResize">
+            <!-- Specifies an Android theme to apply to this Activity as soon as
+                 the Android process has started. This theme is visible to the user
+                 while the Flutter UI initializes. After that, this theme continues
+                 to determine the Window background behind the Flutter UI. -->
+            <meta-data
+              android:name="io.flutter.embedding.android.NormalTheme"
+              android:resource="@style/NormalTheme"
+              />
+            <intent-filter>
+                <action android:name="android.intent.action.MAIN"/>
+                <category android:name="android.intent.category.LAUNCHER"/>
+            </intent-filter>
+        </activity>
+        <!-- Don't delete the meta-data below.
+             This is used by the Flutter tool to generate GeneratedPluginRegistrant.java -->
+        <meta-data
+            android:name="flutterEmbedding"
+            android:value="2" />
+    </application>
+</manifest>

android/app/src/main/kotlin/com/souvikbiswas/my_flutter_puzzle/MainActivity.kt

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+package com.souvikbiswas.my_flutter_puzzle
+
+import io.flutter.embedding.android.FlutterActivity
+
+class MainActivity: FlutterActivity() {
+}

android/app/src/main/res/drawable-v21/launch_background.xml

@@ -0,0 +1,12 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!-- Modify this file to customize your launch splash screen -->
+<layer-list xmlns:android="http://schemas.android.com/apk/res/android">
+    <item android:drawable="?android:colorBackground" />
+
+    <!-- You can insert your own image assets here -->
+    <!-- <item>
+        <bitmap
+            android:gravity="center"
+            android:src="@mipmap/launch_image" />
+    </item> -->
+</layer-list>

android/app/src/main/res/drawable/launch_background.xml

@@ -0,0 +1,12 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!-- Modify this file to customize your launch splash screen -->
+<layer-list xmlns:android="http://schemas.android.com/apk/res/android">
+    <item android:drawable="@android:color/white" />
+
+    <!-- You can insert your own image assets here -->
+    <!-- <item>
+        <bitmap
+            android:gravity="center"
+            android:src="@mipmap/launch_image" />
+    </item> -->
+</layer-list>

android/app/src/main/res/values-night/styles.xml

@@ -0,0 +1,18 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <!-- Theme applied to the Android Window while the process is starting when the OS's Dark Mode setting is on -->
+    <style name="LaunchTheme" parent="@android:style/Theme.Black.NoTitleBar">
+        <!-- Show a splash screen on the activity. Automatically removed when
+             Flutter draws its first frame -->
+        <item name="android:windowBackground">@drawable/launch_background</item>
+    </style>
+    <!-- Theme applied to the Android Window as soon as the process has started.
+         This theme determines the color of the Android Window while your
+         Flutter UI initializes, as well as behind your Flutter UI while its
+         running.
+
+         This Theme is only used starting with V2 of Flutter's Android embedding. -->
+    <style name="NormalTheme" parent="@android:style/Theme.Black.NoTitleBar">
+        <item name="android:windowBackground">?android:colorBackground</item>
+    </style>
+</resources>

android/app/src/main/res/values/styles.xml

@@ -0,0 +1,18 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <!-- Theme applied to the Android Window while the process is starting when the OS's Dark Mode setting is off -->
+    <style name="LaunchTheme" parent="@android:style/Theme.Light.NoTitleBar">
+        <!-- Show a splash screen on the activity. Automatically removed when
+             Flutter draws its first frame -->
+        <item name="android:windowBackground">@drawable/launch_background</item>
+    </style>
+    <!-- Theme applied to the Android Window as soon as the process has started.
+         This theme determines the color of the Android Window while your
+         Flutter UI initializes, as well as behind your Flutter UI while its
+         running.
+
+         This Theme is only used starting with V2 of Flutter's Android embedding. -->
+    <style name="NormalTheme" parent="@android:style/Theme.Light.NoTitleBar">
+        <item name="android:windowBackground">?android:colorBackground</item>
+    </style>
+</resources>

android/app/src/profile/AndroidManifest.xml

@@ -0,0 +1,7 @@
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+    package="com.souvikbiswas.my_flutter_puzzle">
+    <!-- Flutter needs it to communicate with the running application
+         to allow setting breakpoints, to provide hot reload, etc.
+    -->
+    <uses-permission android:name="android.permission.INTERNET"/>
+</manifest>

android/build.gradle

@@ -0,0 +1,31 @@
+buildscript {
+    ext.kotlin_version = '1.3.50'
+    repositories {
+        google()
+        mavenCentral()
+    }
+
+    dependencies {
+        classpath 'com.android.tools.build:gradle:4.1.0'
+        classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"
+    }
+}
+
+allprojects {
+    repositories {
+        google()
+        mavenCentral()
+    }
+}
+
+rootProject.buildDir = '../build'
+subprojects {
+    project.buildDir = "${rootProject.buildDir}/${project.name}"
+}
+subprojects {
+    project.evaluationDependsOn(':app')
+}
+
+task clean(type: Delete) {
+    delete rootProject.buildDir
+}

android/gradle.properties

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+org.gradle.jvmargs=-Xmx1536M
+android.useAndroidX=true
+android.enableJetifier=true

android/gradle/wrapper/gradle-wrapper.properties

@@ -0,0 +1,6 @@
+#Fri Jun 23 08:50:38 CEST 2017
+distributionBase=GRADLE_USER_HOME
+distributionPath=wrapper/dists
+zipStoreBase=GRADLE_USER_HOME
+zipStorePath=wrapper/dists
+distributionUrl=https\://services.gradle.org/distributions/gradle-7.5.1-all.zip

android/settings.gradle

@@ -0,0 +1,11 @@
+include ':app'
+
+def localPropertiesFile = new File(rootProject.projectDir, "local.properties")
+def properties = new Properties()
+
+assert localPropertiesFile.exists()
+localPropertiesFile.withReader("UTF-8") { reader -> properties.load(reader) }
+
+def flutterSdkPath = properties.getProperty("flutter.sdk")
+assert flutterSdkPath != null, "flutter.sdk not set in local.properties"
+apply from: "$flutterSdkPath/packages/flutter_tools/gradle/app_plugin_loader.gradle"

codemagic.yaml

@@ -0,0 +1,31 @@
+workflows:
+  web-workflow:
+    name: Web Workflow
+    instance_type: mac_mini
+    max_build_duration: 60
+    environment:
+      flutter: stable
+      xcode: latest
+      cocoapods: default
+    triggering:
+      events:
+        - push
+    scripts:
+      - name: Install dependencies
+        script: flutter packages pub get
+      - name: Enable web
+        script: flutter config --enable-web
+      - name: Testing
+        script: flutter test
+      - name: Build web
+        script: 
+          |
+          flutter build web --release
+          cd build/web
+          7z a -r ../web.zip ./*
+    artifacts:
+      - build/web.zip
+    publishing:
+      email:
+        recipients:
+          - sbis1999@gmail.com

firebase.json

@@ -0,0 +1,16 @@
+{
+  "hosting": {
+    "public": "build/web",
+    "ignore": [
+      "firebase.json",
+      "**/.*",
+      "**/node_modules/**"
+    ],
+    "rewrites": [
+      {
+        "source": "**",
+        "destination": "/index.html"
+      }
+    ]
+  }
+}

ios/.gitignore

@@ -0,0 +1,34 @@
+**/dgph
+*.mode1v3
+*.mode2v3
+*.moved-aside
+*.pbxuser
+*.perspectivev3
+**/*sync/
+.sconsign.dblite
+.tags*
+**/.vagrant/
+**/DerivedData/
+Icon?
+**/Pods/
+**/.symlinks/
+profile
+xcuserdata
+**/.generated/
+Flutter/App.framework
+Flutter/Flutter.framework
+Flutter/Flutter.podspec
+Flutter/Generated.xcconfig
+Flutter/ephemeral/
+Flutter/app.flx
+Flutter/app.zip
+Flutter/flutter_assets/
+Flutter/flutter_export_environment.sh
+ServiceDefinitions.json
+Runner/GeneratedPluginRegistrant.*
+
+# Exceptions to above rules.
+!default.mode1v3
+!default.mode2v3
+!default.pbxuser
+!default.perspectivev3

ios/Flutter/AppFrameworkInfo.plist

@@ -0,0 +1,26 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+  <key>CFBundleDevelopmentRegion</key>
+  <string>en</string>
+  <key>CFBundleExecutable</key>
+  <string>App</string>
+  <key>CFBundleIdentifier</key>
+  <string>io.flutter.flutter.app</string>
+  <key>CFBundleInfoDictionaryVersion</key>
+  <string>6.0</string>
+  <key>CFBundleName</key>
+  <string>App</string>
+  <key>CFBundlePackageType</key>
+  <string>FMWK</string>
+  <key>CFBundleShortVersionString</key>
+  <string>1.0</string>
+  <key>CFBundleSignature</key>
+  <string>????</string>
+  <key>CFBundleVersion</key>
+  <string>1.0</string>
+  <key>MinimumOSVersion</key>
+  <string>9.0</string>
+</dict>
+</plist>

ios/Flutter/Debug.xcconfig

@@ -0,0 +1,2 @@
+#include? "Pods/Target Support Files/Pods-Runner/Pods-Runner.debug.xcconfig"
+#include "Generated.xcconfig"

ios/Flutter/Release.xcconfig

@@ -0,0 +1,2 @@
+#include? "Pods/Target Support Files/Pods-Runner/Pods-Runner.release.xcconfig"
+#include "Generated.xcconfig"

ios/Podfile

@@ -0,0 +1,41 @@
+# Uncomment this line to define a global platform for your project
+# platform :ios, '9.0'
+
+# CocoaPods analytics sends network stats synchronously affecting flutter build latency.
+ENV['COCOAPODS_DISABLE_STATS'] = 'true'
+
+project 'Runner', {
+  'Debug' => :debug,
+  'Profile' => :release,
+  'Release' => :release,
+}
+
+def flutter_root
+  generated_xcode_build_settings_path = File.expand_path(File.join('..', 'Flutter', 'Generated.xcconfig'), __FILE__)
+  unless File.exist?(generated_xcode_build_settings_path)
+    raise "#{generated_xcode_build_settings_path} must exist. If you're running pod install manually, make sure flutter pub get is executed first"
+  end
+
+  File.foreach(generated_xcode_build_settings_path) do |line|
+    matches = line.match(/FLUTTER_ROOT\=(.*)/)
+    return matches[1].strip if matches
+  end
+  raise "FLUTTER_ROOT not found in #{generated_xcode_build_settings_path}. Try deleting Generated.xcconfig, then run flutter pub get"
+end
+
+require File.expand_path(File.join('packages', 'flutter_tools', 'bin', 'podhelper'), flutter_root)
+
+flutter_ios_podfile_setup
+
+target 'Runner' do
+  use_frameworks!
+  use_modular_headers!
+
+  flutter_install_all_ios_pods File.dirname(File.realpath(__FILE__))
+end
+
+post_install do |installer|
+  installer.pods_project.targets.each do |target|
+    flutter_additional_ios_build_settings(target)
+  end
+end

ios/Runner.xcodeproj/project.pbxproj

@@ -0,0 +1,481 @@
+// !$*UTF8*$!
+{
+	archiveVersion = 1;
+	classes = {
+	};
+	objectVersion = 50;
+	objects = {
+
+/* Begin PBXBuildFile section */
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+			);
+			defaultConfigurationIsVisible = 0;
+			defaultConfigurationName = Release;
+		};
+/* End XCConfigurationList section */
+	};
+	rootObject = 97C146E61CF9000F007C117D /* Project object */;
+}

ios/Runner.xcodeproj/project.xcworkspace/contents.xcworkspacedata

@@ -0,0 +1,7 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<Workspace
+   version = "1.0">
+   <FileRef
+      location = "self:">
+   </FileRef>
+</Workspace>

ios/Runner.xcodeproj/project.xcworkspace/xcshareddata/IDEWorkspaceChecks.plist

@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>IDEDidComputeMac32BitWarning</key>
+	<true/>
+</dict>
+</plist>

ios/Runner.xcodeproj/project.xcworkspace/xcshareddata/WorkspaceSettings.xcsettings

@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>PreviewsEnabled</key>
+	<false/>
+</dict>
+</plist>

ios/Runner.xcodeproj/xcshareddata/xcschemes/Runner.xcscheme

@@ -0,0 +1,87 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<Scheme
+   LastUpgradeVersion = "1300"
+   version = "1.3">
+   <BuildAction
+      parallelizeBuildables = "YES"
+      buildImplicitDependencies = "YES">
+      <BuildActionEntries>
+         <BuildActionEntry
+            buildForTesting = "YES"
+            buildForRunning = "YES"
+            buildForProfiling = "YES"
+            buildForArchiving = "YES"
+            buildForAnalyzing = "YES">
+            <BuildableReference
+               BuildableIdentifier = "primary"
+               BlueprintIdentifier = "97C146ED1CF9000F007C117D"
+               BuildableName = "Runner.app"
+               BlueprintName = "Runner"
+               ReferencedContainer = "container:Runner.xcodeproj">
+            </BuildableReference>
+         </BuildActionEntry>
+      </BuildActionEntries>
+   </BuildAction>
+   <TestAction
+      buildConfiguration = "Debug"
+      selectedDebuggerIdentifier = "Xcode.DebuggerFoundation.Debugger.LLDB"
+      selectedLauncherIdentifier = "Xcode.DebuggerFoundation.Launcher.LLDB"
+      shouldUseLaunchSchemeArgsEnv = "YES">
+      <MacroExpansion>
+         <BuildableReference
+            BuildableIdentifier = "primary"
+            BlueprintIdentifier = "97C146ED1CF9000F007C117D"
+            BuildableName = "Runner.app"
+            BlueprintName = "Runner"
+            ReferencedContainer = "container:Runner.xcodeproj">
+         </BuildableReference>
+      </MacroExpansion>
+      <Testables>
+      </Testables>
+   </TestAction>
+   <LaunchAction
+      buildConfiguration = "Debug"
+      selectedDebuggerIdentifier = "Xcode.DebuggerFoundation.Debugger.LLDB"
+      selectedLauncherIdentifier = "Xcode.DebuggerFoundation.Launcher.LLDB"
+      launchStyle = "0"
+      useCustomWorkingDirectory = "NO"
+      ignoresPersistentStateOnLaunch = "NO"
+      debugDocumentVersioning = "YES"
+      debugServiceExtension = "internal"
+      allowLocationSimulation = "YES">
+      <BuildableProductRunnable
+         runnableDebuggingMode = "0">
+         <BuildableReference
+            BuildableIdentifier = "primary"
+            BlueprintIdentifier = "97C146ED1CF9000F007C117D"
+            BuildableName = "Runner.app"
+            BlueprintName = "Runner"
+            ReferencedContainer = "container:Runner.xcodeproj">
+         </BuildableReference>
+      </BuildableProductRunnable>
+   </LaunchAction>
+   <ProfileAction
+      buildConfiguration = "Profile"
+      shouldUseLaunchSchemeArgsEnv = "YES"
+      savedToolIdentifier = ""
+      useCustomWorkingDirectory = "NO"
+      debugDocumentVersioning = "YES">
+      <BuildableProductRunnable
+         runnableDebuggingMode = "0">
+         <BuildableReference
+            BuildableIdentifier = "primary"
+            BlueprintIdentifier = "97C146ED1CF9000F007C117D"
+            BuildableName = "Runner.app"
+            BlueprintName = "Runner"
+            ReferencedContainer = "container:Runner.xcodeproj">
+         </BuildableReference>
+      </BuildableProductRunnable>
+   </ProfileAction>
+   <AnalyzeAction
+      buildConfiguration = "Debug">
+   </AnalyzeAction>
+   <ArchiveAction
+      buildConfiguration = "Release"
+      revealArchiveInOrganizer = "YES">
+   </ArchiveAction>
+</Scheme>

ios/Runner.xcworkspace/contents.xcworkspacedata

@@ -0,0 +1,7 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<Workspace
+   version = "1.0">
+   <FileRef
+      location = "group:Runner.xcodeproj">
+   </FileRef>
+</Workspace>

ios/Runner.xcworkspace/xcshareddata/IDEWorkspaceChecks.plist

@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>IDEDidComputeMac32BitWarning</key>
+	<true/>
+</dict>
+</plist>

ios/Runner.xcworkspace/xcshareddata/WorkspaceSettings.xcsettings

@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>PreviewsEnabled</key>
+	<false/>
+</dict>
+</plist>

ios/Runner/AppDelegate.swift

@@ -0,0 +1,13 @@
+import UIKit
+import Flutter
+
+@UIApplicationMain
+@objc class AppDelegate: FlutterAppDelegate {
+  override func application(
+    _ application: UIApplication,
+    didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey: Any]?
+  ) -> Bool {
+    GeneratedPluginRegistrant.register(with: self)
+    return super.application(application, didFinishLaunchingWithOptions: launchOptions)
+  }
+}

ios/Runner/Assets.xcassets/AppIcon.appiconset/Contents.json

@@ -0,0 +1,122 @@
+{
+  "images" : [
+    {
+      "size" : "20x20",
+      "idiom" : "iphone",
+      "filename" : "Icon-App-20x20@2x.png",
+      "scale" : "2x"
+    },
+    {
+      "size" : "20x20",
+      "idiom" : "iphone",
+      "filename" : "Icon-App-20x20@3x.png",
+      "scale" : "3x"
+    },
+    {
+      "size" : "29x29",
+      "idiom" : "iphone",
+      "filename" : "Icon-App-29x29@1x.png",
+      "scale" : "1x"
+    },
+    {
+      "size" : "29x29",
+      "idiom" : "iphone",
+      "filename" : "Icon-App-29x29@2x.png",
+      "scale" : "2x"
+    },
+    {
+      "size" : "29x29",
+      "idiom" : "iphone",
+      "filename" : "Icon-App-29x29@3x.png",
+      "scale" : "3x"
+    },
+    {
+      "size" : "40x40",
+      "idiom" : "iphone",
+      "filename" : "Icon-App-40x40@2x.png",
+      "scale" : "2x"
+    },
+    {
+      "size" : "40x40",
+      "idiom" : "iphone",
+      "filename" : "Icon-App-40x40@3x.png",
+      "scale" : "3x"
+    },
+    {
+      "size" : "60x60",
+      "idiom" : "iphone",
+      "filename" : "Icon-App-60x60@2x.png",
+      "scale" : "2x"
+    },
+    {
+      "size" : "60x60",
+      "idiom" : "iphone",
+      "filename" : "Icon-App-60x60@3x.png",
+      "scale" : "3x"
+    },
+    {
+      "size" : "20x20",
+      "idiom" : "ipad",
+      "filename" : "Icon-App-20x20@1x.png",
+      "scale" : "1x"
+    },
+    {
+      "size" : "20x20",
+      "idiom" : "ipad",
+      "filename" : "Icon-App-20x20@2x.png",
+      "scale" : "2x"
+    },
+    {
+      "size" : "29x29",
+      "idiom" : "ipad",
+      "filename" : "Icon-App-29x29@1x.png",
+      "scale" : "1x"
+    },
+    {
+      "size" : "29x29",
+      "idiom" : "ipad",
+      "filename" : "Icon-App-29x29@2x.png",
+      "scale" : "2x"
+    },
+    {
+      "size" : "40x40",
+      "idiom" : "ipad",
+      "filename" : "Icon-App-40x40@1x.png",
+      "scale" : "1x"
+    },
+    {
+      "size" : "40x40",
+      "idiom" : "ipad",
+      "filename" : "Icon-App-40x40@2x.png",
+      "scale" : "2x"
+    },
+    {
+      "size" : "76x76",
+      "idiom" : "ipad",
+      "filename" : "Icon-App-76x76@1x.png",
+      "scale" : "1x"
+    },
+    {
+      "size" : "76x76",
+      "idiom" : "ipad",
+      "filename" : "Icon-App-76x76@2x.png",
+      "scale" : "2x"
+    },
+    {
+      "size" : "83.5x83.5",
+      "idiom" : "ipad",
+      "filename" : "Icon-App-83.5x83.5@2x.png",
+      "scale" : "2x"
+    },
+    {
+      "size" : "1024x1024",
+      "idiom" : "ios-marketing",
+      "filename" : "Icon-App-1024x1024@1x.png",
+      "scale" : "1x"
+    }
+  ],
+  "info" : {
+    "version" : 1,
+    "author" : "xcode"
+  }
+}

ios/Runner/Assets.xcassets/LaunchImage.imageset/Contents.json

@@ -0,0 +1,23 @@
+{
+  "images" : [
+    {
+      "idiom" : "universal",
+      "filename" : "LaunchImage.png",
+      "scale" : "1x"
+    },
+    {
+      "idiom" : "universal",
+      "filename" : "LaunchImage@2x.png",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "universal",
+      "filename" : "LaunchImage@3x.png",
+      "scale" : "3x"
+    }
+  ],
+  "info" : {
+    "version" : 1,
+    "author" : "xcode"
+  }
+}

ios/Runner/Assets.xcassets/LaunchImage.imageset/README.md

@@ -0,0 +1,5 @@
+# Launch Screen Assets
+
+You can customize the launch screen with your own desired assets by replacing the image files in this directory.
+
+You can also do it by opening your Flutter project's Xcode project with `open ios/Runner.xcworkspace`, selecting `Runner/Assets.xcassets` in the Project Navigator and dropping in the desired images.

ios/Runner/Base.lproj/LaunchScreen.storyboard

@@ -0,0 +1,37 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<document type="com.apple.InterfaceBuilder3.CocoaTouch.Storyboard.XIB" version="3.0" toolsVersion="12121" systemVersion="16G29" targetRuntime="iOS.CocoaTouch" propertyAccessControl="none" useAutolayout="YES" launchScreen="YES" colorMatched="YES" initialViewController="01J-lp-oVM">
+    <dependencies>
+        <deployment identifier="iOS"/>
+        <plugIn identifier="com.apple.InterfaceBuilder.IBCocoaTouchPlugin" version="12089"/>
+    </dependencies>
+    <scenes>
+        <!--View Controller-->
+        <scene sceneID="EHf-IW-A2E">
+            <objects>
+                <viewController id="01J-lp-oVM" sceneMemberID="viewController">
+                    <layoutGuides>
+                        <viewControllerLayoutGuide type="top" id="Ydg-fD-yQy"/>
+                        <viewControllerLayoutGuide type="bottom" id="xbc-2k-c8Z"/>
+                    </layoutGuides>
+                    <view key="view" contentMode="scaleToFill" id="Ze5-6b-2t3">
+                        <autoresizingMask key="autoresizingMask" widthSizable="YES" heightSizable="YES"/>
+                        <subviews>
+                            <imageView opaque="NO" clipsSubviews="YES" multipleTouchEnabled="YES" contentMode="center" image="LaunchImage" translatesAutoresizingMaskIntoConstraints="NO" id="YRO-k0-Ey4">
+                            </imageView>
+                        </subviews>
+                        <color key="backgroundColor" red="1" green="1" blue="1" alpha="1" colorSpace="custom" customColorSpace="sRGB"/>
+                        <constraints>
+                            <constraint firstItem="YRO-k0-Ey4" firstAttribute="centerX" secondItem="Ze5-6b-2t3" secondAttribute="centerX" id="1a2-6s-vTC"/>
+                            <constraint firstItem="YRO-k0-Ey4" firstAttribute="centerY" secondItem="Ze5-6b-2t3" secondAttribute="centerY" id="4X2-HB-R7a"/>
+                        </constraints>
+                    </view>
+                </viewController>
+                <placeholder placeholderIdentifier="IBFirstResponder" id="iYj-Kq-Ea1" userLabel="First Responder" sceneMemberID="firstResponder"/>
+            </objects>
+            <point key="canvasLocation" x="53" y="375"/>
+        </scene>
+    </scenes>
+    <resources>
+        <image name="LaunchImage" width="168" height="185"/>
+    </resources>
+</document>

ios/Runner/Base.lproj/Main.storyboard

@@ -0,0 +1,26 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<document type="com.apple.InterfaceBuilder3.CocoaTouch.Storyboard.XIB" version="3.0" toolsVersion="10117" systemVersion="15F34" targetRuntime="iOS.CocoaTouch" propertyAccessControl="none" useAutolayout="YES" useTraitCollections="YES" initialViewController="BYZ-38-t0r">
+    <dependencies>
+        <deployment identifier="iOS"/>
+        <plugIn identifier="com.apple.InterfaceBuilder.IBCocoaTouchPlugin" version="10085"/>
+    </dependencies>
+    <scenes>
+        <!--Flutter View Controller-->
+        <scene sceneID="tne-QT-ifu">
+            <objects>
+                <viewController id="BYZ-38-t0r" customClass="FlutterViewController" sceneMemberID="viewController">
+                    <layoutGuides>
+                        <viewControllerLayoutGuide type="top" id="y3c-jy-aDJ"/>
+                        <viewControllerLayoutGuide type="bottom" id="wfy-db-euE"/>
+                    </layoutGuides>
+                    <view key="view" contentMode="scaleToFill" id="8bC-Xf-vdC">
+                        <rect key="frame" x="0.0" y="0.0" width="600" height="600"/>
+                        <autoresizingMask key="autoresizingMask" widthSizable="YES" heightSizable="YES"/>
+                        <color key="backgroundColor" white="1" alpha="1" colorSpace="custom" customColorSpace="calibratedWhite"/>
+                    </view>
+                </viewController>
+                <placeholder placeholderIdentifier="IBFirstResponder" id="dkx-z0-nzr" sceneMemberID="firstResponder"/>
+            </objects>
+        </scene>
+    </scenes>
+</document>

ios/Runner/Info.plist

@@ -0,0 +1,47 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>CFBundleDevelopmentRegion</key>
+	<string>$(DEVELOPMENT_LANGUAGE)</string>
+	<key>CFBundleDisplayName</key>
+	<string>My Flutter Puzzle</string>
+	<key>CFBundleExecutable</key>
+	<string>$(EXECUTABLE_NAME)</string>
+	<key>CFBundleIdentifier</key>
+	<string>$(PRODUCT_BUNDLE_IDENTIFIER)</string>
+	<key>CFBundleInfoDictionaryVersion</key>
+	<string>6.0</string>
+	<key>CFBundleName</key>
+	<string>my_flutter_puzzle</string>
+	<key>CFBundlePackageType</key>
+	<string>APPL</string>
+	<key>CFBundleShortVersionString</key>
+	<string>$(FLUTTER_BUILD_NAME)</string>
+	<key>CFBundleSignature</key>
+	<string>????</string>
+	<key>CFBundleVersion</key>
+	<string>$(FLUTTER_BUILD_NUMBER)</string>
+	<key>LSRequiresIPhoneOS</key>
+	<true/>
+	<key>UILaunchStoryboardName</key>
+	<string>LaunchScreen</string>
+	<key>UIMainStoryboardFile</key>
+	<string>Main</string>
+	<key>UISupportedInterfaceOrientations</key>
+	<array>
+		<string>UIInterfaceOrientationPortrait</string>
+		<string>UIInterfaceOrientationLandscapeLeft</string>
+		<string>UIInterfaceOrientationLandscapeRight</string>
+	</array>
+	<key>UISupportedInterfaceOrientations~ipad</key>
+	<array>
+		<string>UIInterfaceOrientationPortrait</string>
+		<string>UIInterfaceOrientationPortraitUpsideDown</string>
+		<string>UIInterfaceOrientationLandscapeLeft</string>
+		<string>UIInterfaceOrientationLandscapeRight</string>
+	</array>
+	<key>UIViewControllerBasedStatusBarAppearance</key>
+	<true/>
+</dict>
+</plist>

ios/Runner/Runner-Bridging-Header.h

@@ -0,0 +1 @@
+#import "GeneratedPluginRegistrant.h"

lib/application/notifiers/anonymous_auth_notifier.dart

@@ -0,0 +1,33 @@
+// import 'package:flutter_riverpod/flutter_riverpod.dart';
+// import 'package:my_flutter_puzzle/application/states/anonymous_auth_state.dart';
+// import 'package:my_flutter_puzzle/models/user_info.dart';
+// import 'package:my_flutter_puzzle/utils/authentication_client.dart';
+// import 'package:my_flutter_puzzle/utils/database_client.dart';
+
+// class AnonymousAuthNotifier extends StateNotifier<AnonymousAuthState> {
+//   final AuthenticationClient _authentication;
+//   final DatabaseClient _databaseClient;
+
+//   AnonymousAuthNotifier(this._authentication, this._databaseClient)
+//       : super(const AnonymousAuthState());
+
+//   triggerAnonymousLogin({required String name}) async {
+//     state = const AnonymousAuthState.processing();
+
+//     try {
+//       final user = await _authentication.signInAnonymously(name: name);
+//       state = AnonymousAuthState.done(user);
+//       state = const AnonymousAuthState.storingInfo();
+//       final userData = UserData(
+//         uid: user.uid,
+//         name: user.displayName!,
+//         username: '${user.displayName!.split(' ')[0].toLowerCase()}@${user.uid}',
+//         timestamp: DateTime.now().millisecondsSinceEpoch,
+//       );
+//       await _databaseClient.addUser(userInfo: userData);
+//       state = AnonymousAuthState.storageDone(userData);
+//     } catch (e) {
+//       state = AnonymousAuthState.error(message: e.toString());
+//     }
+//   }
+// }

lib/application/notifiers/image_splitter_notifier.dart

@@ -0,0 +1,56 @@
+import 'dart:developer';
+
+import 'package:flutter/material.dart';
+import 'package:flutter/services.dart';
+import 'package:flutter_riverpod/flutter_riverpod.dart';
+import 'package:image_picker/image_picker.dart';
+import 'package:my_flutter_puzzle/application/states/image_splitter_state.dart';
+import 'package:my_flutter_puzzle/res/strings.dart';
+import 'package:my_flutter_puzzle/utils/image_splitter.dart';
+
+class ImageSplitterNotifier extends StateNotifier<ImageSplitterState> {
+  final ImageSplitter _splitter;
+
+  ImageSplitterNotifier(this._splitter) : super(const ImageSplitterState());
+
+  getInitialImages({required int puzzleSize}) async {
+    state = const ImageSplitterState.generating();
+
+    try {
+      final data = await rootBundle.load(defaultImagePath);
+      final imageBytes = data.buffer.asUint8List();
+      final _splitter = ImageSplitter();
+
+      final palette =
+          await _splitter.getImagePalette(const AssetImage(defaultImagePath));
+      final images = await _splitter.runSplitterIsolate(imageBytes, puzzleSize);
+      
+
+      state = ImageSplitterState.complete(
+          Image.asset(defaultImagePath), images, palette);
+    } catch (e) {
+      state = ImageSplitterState.error(message: e.toString());
+    }
+  }
+
+  generateImages({required ImagePicker picker, required int puzzleSize}) async {
+    state = const ImageSplitterState.generating();
+
+    try {
+      final imageBytesPalette = await _splitter.getImage(picker: picker);
+
+      if (imageBytesPalette != null) {
+        final image = imageBytesPalette.item1;
+        final imageBytes = imageBytesPalette.item2;
+        final palette = imageBytesPalette.item3;
+        log('Image tuple retrieved');
+        final images =
+            await _splitter.runSplitterIsolate(imageBytes, puzzleSize);
+        state = ImageSplitterState.complete(image, images, palette);
+      }
+    } catch (e) {
+      debugPrint('Error: $e');
+      state = ImageSplitterState.error(message: e.toString());
+    }
+  }
+}

lib/application/notifiers/login_register_notifier.dart

@@ -0,0 +1,13 @@
+import 'package:flutter_riverpod/flutter_riverpod.dart';
+
+class IsLoginNotifier extends StateNotifier<bool> {
+  IsLoginNotifier() : super(true);
+
+  selectLogin() {
+    state = true;
+  }
+
+  selectRegister() {
+    state = false;
+  }
+}

lib/application/notifiers/puzzle_notifier.dart

@@ -0,0 +1,320 @@
+import 'dart:async';
+import 'dart:developer';
+
+import 'package:flutter/foundation.dart';
+import 'package:flutter/widgets.dart';
+import 'package:flutter_riverpod/flutter_riverpod.dart';
+import 'package:my_flutter_puzzle/application/states/puzzle_state.dart';
+import 'package:my_flutter_puzzle/models/puzzle_data.dart';
+
+import '../../utils/puzzle_solver.dart';
+
+class PuzzleNotifier extends StateNotifier<PuzzleState> {
+  final PuzzleSolverClient _solverClient;
+
+  PuzzleNotifier(this._solverClient) : super(const PuzzleState());
+
+  // List<List<int>>? _board2D;
+  // List<int>? myList;
+  // int _moves = 0;
+  // final _puzzleSize = 3;
+  // final int _animationSpeedInMilliseconds = 300;
+  // bool _isComputing = false;
+  // bool _isAutoSolving = false;
+  // bool _isSolved = false;
+
+  // Map<int, FractionalOffset>? _offsetMap;
+  final List<int> _solvedList = [];
+
+  generateSolvedList() {
+    var _puzzleSize = _solverClient.size;
+    for (int i = 1; i < _puzzleSize * _puzzleSize; i++) {
+      _solvedList.add(i);
+    }
+    _solvedList.add(0);
+  }
+
+  generateInitialPuzzle() {
+    List<int> solvedList = [];
+    var _puzzleSize = _solverClient.size;
+    for (int i = 1; i < _puzzleSize * _puzzleSize; i++) {
+      solvedList.add(i);
+    }
+    solvedList.add(0);
+    final initialOffsetMap = createOffset(solvedList);
+
+    final initialPuzzleData = PuzzleData(
+      board2D: [],
+      board1D: solvedList,
+      offsetMap: initialOffsetMap,
+      moves: 0,
+      tiles: 0,
+      puzzleSize: _puzzleSize,
+    );
+
+    return initialPuzzleData;
+  }
+
+  restartPuzzle() async {
+    final initialPuzzle = generateInitialPuzzle();
+    state = PuzzleState.scrambling(initialPuzzle);
+    await Future.delayed(const Duration(seconds: 2));
+    initializePuzzle(initialPuzzleData: initialPuzzle);
+  }
+
+  initializePuzzle({required PuzzleData initialPuzzleData}) {
+    state = const PuzzleState.initializing();
+
+    _solvedList.clear();
+    _solverClient.setSize = initialPuzzleData.puzzleSize;
+
+    generateSolvedList();
+
+    int start = 0;
+    const period = Duration(milliseconds: 1200);
+    PuzzleData currentPuzzleData = initialPuzzleData;
+    currentPuzzleData = scrambleBoard(currentPuzzleData);
+
+    Timer.periodic(period, (Timer timer) async {
+      currentPuzzleData = scrambleBoard(currentPuzzleData);
+      start++;
+      if (start == 2) {
+        timer.cancel();
+        await Future.delayed(const Duration(milliseconds: 1000));
+        state = PuzzleState.current(currentPuzzleData);
+      }
+    });
+  }
+
+  Map<int, FractionalOffset> createOffset(List<int> board) {
+    Map<int, FractionalOffset> offsetMap = {};
+    int j = 0;
+
+    log('BOARD: $board');
+
+    for (int i = 0; i < board.length; i++) {
+      var _puzzleSize = _solverClient.size;
+      final xMod = i % _puzzleSize;
+      double x = xMod / (_puzzleSize - 1);
+
+      if (x % i == 0 && i != 0) j++;
+      int yMod = j % _puzzleSize;
+      double y = yMod / (_puzzleSize - 1);
+
+      offsetMap.addEntries([
+        MapEntry<int, FractionalOffset>(
+          board[i],
+          FractionalOffset(x, y),
+        )
+      ]);
+    }
+
+    log('INITIAL OFFSET MAP: $offsetMap');
+
+    return offsetMap;
+  }
+
+  onClick({required int index, required PuzzleData prev}) {
+    log('-----------------------');
+    log('Tapped index: $index');
+
+    var board1D = prev.board1D;
+    var offsetMap = prev.offsetMap;
+    var _puzzleSize = prev.puzzleSize;
+    var _moves = prev.moves;
+
+    int emptyTilePosIndex = board1D.indexOf(0);
+    int emptyTilePosRow = emptyTilePosIndex ~/ _puzzleSize;
+    int emptyTilePosCol = emptyTilePosIndex % _puzzleSize;
+
+    int currentTileRow = index ~/ _puzzleSize;
+    int currentTileCol = index % _puzzleSize;
+
+    //current element moves up
+    if ((currentTileRow - 1 == emptyTilePosRow) &&
+        (currentTileCol == emptyTilePosCol)) {
+      board1D[emptyTilePosIndex] = board1D[index];
+      board1D[index] = 0;
+      _moves++;
+    }
+
+    //current element moves down
+    else if ((currentTileRow + 1 == emptyTilePosRow) &&
+        (currentTileCol == emptyTilePosCol)) {
+      board1D[emptyTilePosIndex] = board1D[index];
+      board1D[index] = 0;
+      _moves++;
+    }
+
+    //current element moves left
+    else if ((currentTileRow == emptyTilePosRow) &&
+        (currentTileCol + 1 == emptyTilePosCol)) {
+      board1D[emptyTilePosIndex] = board1D[index];
+      board1D[index] = 0;
+      _moves++;
+    }
+
+    //current element moves right
+    else if ((currentTileRow == emptyTilePosRow) &&
+        (currentTileCol - 1 == emptyTilePosCol)) {
+      board1D[emptyTilePosIndex] = board1D[index];
+      board1D[index] = 0;
+      _moves++;
+    } else {
+      if (currentTileCol == emptyTilePosCol) {
+        int low;
+        int high;
+
+        // multiple elements move up
+        if (emptyTilePosRow < currentTileRow) {
+          low = emptyTilePosRow;
+          high = currentTileRow;
+
+          int i = low;
+          while (i < high) {
+            board1D[(i * _puzzleSize) + emptyTilePosCol] =
+                board1D[(((i + 1) * _puzzleSize) + emptyTilePosCol)];
+
+            i += 1;
+          }
+
+          board1D[(high * _puzzleSize) + emptyTilePosCol] = 0;
+          _moves++;
+        }
+
+        //multiple elements move down
+        else {
+          low = emptyTilePosRow;
+          high = currentTileRow;
+
+          int i = low;
+          while (i > high) {
+            board1D[(i * _puzzleSize) + emptyTilePosCol] =
+                board1D[(((i - 1) * _puzzleSize) + emptyTilePosCol)];
+
+            i -= 1;
+          }
+
+          board1D[(high * _puzzleSize) + emptyTilePosCol] = 0;
+          _moves++;
+        }
+      }
+
+      // multiple elements move left or right
+      if (currentTileRow == emptyTilePosRow) {
+        int low;
+        int high;
+
+        // multiple elements move left
+        if (emptyTilePosCol < currentTileCol) {
+          low = emptyTilePosCol;
+          high = currentTileCol;
+
+          int i = low;
+          while (i < high) {
+            board1D[(emptyTilePosRow * _puzzleSize) + i] =
+                board1D[(emptyTilePosRow * _puzzleSize) + (i + 1)];
+
+            i += 1;
+          }
+
+          board1D[high + (emptyTilePosRow * _puzzleSize)] = 0;
+          _moves++;
+        }
+
+        //multiple elements move right
+        else {
+          low = emptyTilePosCol;
+          high = currentTileCol;
+
+          int i = low;
+          while (i > high) {
+            board1D[(i + (emptyTilePosRow * _puzzleSize))] =
+                board1D[(i - 1) + (emptyTilePosRow * _puzzleSize)];
+
+            i -= 1;
+          }
+
+          board1D[high + (emptyTilePosRow * _puzzleSize)] = 0;
+          _moves++;
+        }
+      }
+    }
+
+    updateOffset(board1D, _puzzleSize, offsetMap);
+    var tiles = calculateCorrectTiles(board: board1D);
+
+    PuzzleData updatedData = PuzzleData(
+      board2D: prev.board2D,
+      board1D: board1D,
+      offsetMap: offsetMap,
+      moves: _moves,
+      tiles: tiles,
+      puzzleSize: _puzzleSize,
+    );
+
+    state = PuzzleState.current(updatedData);
+
+    if (listEquals(board1D, _solvedList)) {
+      state = PuzzleState.solved(updatedData);
+    }
+
+    log('List: $board1D');
+    log('-----------------------');
+  }
+
+  int calculateCorrectTiles({required List<int> board}) {
+    int correctTiles = 0;
+
+    for (int i = 0; i < _solverClient.size * _solverClient.size; i++) {
+      if (board[i] != _solvedList[i] && board[i] != 0) {
+        correctTiles++;
+      }
+    }
+
+    return correctTiles;
+  }
+
+  void updateOffset(
+    List<int> board1D,
+    int size,
+    Map<int, FractionalOffset> offsetMap,
+  ) {
+    int j = 0;
+
+    for (int i = 0; i < board1D.length; i++) {
+      final xMod = i % size;
+      double x = xMod / (size - 1);
+
+      if (x % i == 0 && i != 0) j++;
+      int yMod = j % size;
+      double y = yMod / (size - 1);
+
+      offsetMap[board1D[i]] = FractionalOffset(x, y);
+    }
+    log('OFFSET MAP: $offsetMap');
+    log('BOARD: $board1D');
+  }
+
+  scrambleBoard(PuzzleData puzzleData) {
+    final generated2DBoard = _solverClient.createRandomBoard();
+    final generated1DBoard = _solverClient.convertTo1D(generated2DBoard);
+
+    updateOffset(generated1DBoard, puzzleData.puzzleSize, puzzleData.offsetMap);
+
+    var tiles = calculateCorrectTiles(board: generated1DBoard);
+
+    final newPuzzle = PuzzleData(
+      board2D: generated2DBoard,
+      board1D: generated1DBoard,
+      offsetMap: puzzleData.offsetMap,
+      moves: 0,
+      tiles: tiles,
+      puzzleSize: puzzleData.puzzleSize,
+    );
+
+    state = PuzzleState.scrambling(newPuzzle);
+
+    return newPuzzle;
+  }
+}

lib/application/notifiers/puzzle_type_notifier.dart

@@ -0,0 +1,23 @@
+import 'package:flutter_riverpod/flutter_riverpod.dart';
+
+enum PuzzleType {
+  normal,
+  photo,
+  multiplayer,
+}
+
+class PuzzleTypeNotifier extends StateNotifier<PuzzleType> {
+  PuzzleTypeNotifier() : super(PuzzleType.normal);
+
+  changeToNormal() {
+    state = PuzzleType.normal;
+  }
+
+  changeToPhoto() {
+    state = PuzzleType.photo;
+  }
+
+  changeToMultiplayer() {
+    state = PuzzleType.multiplayer;
+  }
+}

lib/application/notifiers/timer_notifier.dart

@@ -0,0 +1,38 @@
+import 'dart:async';
+
+import 'package:flutter_riverpod/flutter_riverpod.dart';
+
+class TimerNotifier extends StateNotifier<String> {
+  TimerNotifier() : super('00:00:00');
+
+  Timer? _timer;
+  final _stopwatch = Stopwatch();
+
+  @override
+  void dispose() {
+    _stopwatch.stop();
+    _timer?.cancel();
+    super.dispose();
+  }
+
+  startTimer() {
+    _stopwatch.start();
+    _timer = Timer.periodic(const Duration(seconds: 1), (timer) {
+      state = getDurationString(_stopwatch.elapsed);
+    });
+  }
+
+  stopTimer() {
+    _stopwatch.stop();
+    _stopwatch.reset();
+    state = getDurationString(_stopwatch.elapsed);
+    _timer?.cancel();
+  }
+
+  String getDurationString(Duration duration) {
+    String twoDigits(int n) => n.toString().padLeft(2, "0");
+    String twoDigitMinutes = twoDigits(duration.inMinutes.remainder(60));
+    String twoDigitSeconds = twoDigits(duration.inSeconds.remainder(60));
+    return "${twoDigits(duration.inHours)}:$twoDigitMinutes:$twoDigitSeconds";
+  }
+}

lib/application/states/add_user_database_state.dart

@@ -0,0 +1,12 @@
+import 'package:freezed_annotation/freezed_annotation.dart';
+import 'package:my_flutter_puzzle/models/user_info.dart';
+
+part 'add_user_database_state.freezed.dart';
+
+@freezed
+class AddUserDatabaseState with _$AddUserDatabaseState {
+  const factory AddUserDatabaseState() = AddUserDatabaseIdle;
+  const factory AddUserDatabaseState.processing() = AddUserDatabaseProcessing;
+  const factory AddUserDatabaseState.done(EUserData user) = AddUserDatabaseDone;
+  const factory AddUserDatabaseState.error({String? message}) = AddUserDatabaseError;
+}

lib/application/states/add_user_database_state.freezed.dart

@@ -0,0 +1,644 @@
+// coverage:ignore-file
+// GENERATED CODE - DO NOT MODIFY BY HAND
+// ignore_for_file: type=lint
+// ignore_for_file: unused_element, deprecated_member_use, deprecated_member_use_from_same_package, use_function_type_syntax_for_parameters, unnecessary_const, avoid_init_to_null, invalid_override_different_default_values_named, prefer_expression_function_bodies, annotate_overrides, invalid_annotation_target
+
+part of 'add_user_database_state.dart';
+
+// **************************************************************************
+// FreezedGenerator
+// **************************************************************************
+
+T _$identity<T>(T value) => value;
+
+final _privateConstructorUsedError = UnsupportedError(
+    'It seems like you constructed your class using `MyClass._()`. This constructor is only meant to be used by freezed and you are not supposed to need it nor use it.\nPlease check the documentation here for more informations: https://github.com/rrousselGit/freezed#custom-getters-and-methods');
+
+/// @nodoc
+class _$AddUserDatabaseStateTearOff {
+  const _$AddUserDatabaseStateTearOff();
+
+  AddUserDatabaseIdle call() {
+    return const AddUserDatabaseIdle();
+  }
+
+  AddUserDatabaseProcessing processing() {
+    return const AddUserDatabaseProcessing();
+  }
+
+  AddUserDatabaseDone done(EUserData user) {
+    return AddUserDatabaseDone(
+      user,
+    );
+  }
+
+  AddUserDatabaseError error({String? message}) {
+    return AddUserDatabaseError(
+      message: message,
+    );
+  }
+}
+
+/// @nodoc
+const $AddUserDatabaseState = _$AddUserDatabaseStateTearOff();
+
+/// @nodoc
+mixin _$AddUserDatabaseState {
+  @optionalTypeArgs
+  TResult when<TResult extends Object?>(
+    TResult Function() $default, {
+    required TResult Function() processing,
+    required TResult Function(EUserData user) done,
+    required TResult Function(String? message) error,
+  }) =>
+      throw _privateConstructorUsedError;
+  @optionalTypeArgs
+  TResult? whenOrNull<TResult extends Object?>(
+    TResult Function()? $default, {
+    TResult Function()? processing,
+    TResult Function(EUserData user)? done,
+    TResult Function(String? message)? error,
+  }) =>
+      throw _privateConstructorUsedError;
+  @optionalTypeArgs
+  TResult maybeWhen<TResult extends Object?>(
+    TResult Function()? $default, {
+    TResult Function()? processing,
+    TResult Function(EUserData user)? done,
+    TResult Function(String? message)? error,
+    required TResult orElse(),
+  }) =>
+      throw _privateConstructorUsedError;
+  @optionalTypeArgs
+  TResult map<TResult extends Object?>(
+    TResult Function(AddUserDatabaseIdle value) $default, {
+    required TResult Function(AddUserDatabaseProcessing value) processing,
+    required TResult Function(AddUserDatabaseDone value) done,
+    required TResult Function(AddUserDatabaseError value) error,
+  }) =>
+      throw _privateConstructorUsedError;
+  @optionalTypeArgs
+  TResult? mapOrNull<TResult extends Object?>(
+    TResult Function(AddUserDatabaseIdle value)? $default, {
+    TResult Function(AddUserDatabaseProcessing value)? processing,
+    TResult Function(AddUserDatabaseDone value)? done,
+    TResult Function(AddUserDatabaseError value)? error,
+  }) =>
+      throw _privateConstructorUsedError;
+  @optionalTypeArgs
+  TResult maybeMap<TResult extends Object?>(
+    TResult Function(AddUserDatabaseIdle value)? $default, {
+    TResult Function(AddUserDatabaseProcessing value)? processing,
+    TResult Function(AddUserDatabaseDone value)? done,
+    TResult Function(AddUserDatabaseError value)? error,
+    required TResult orElse(),
+  }) =>
+      throw _privateConstructorUsedError;
+}
+
+/// @nodoc
+abstract class $AddUserDatabaseStateCopyWith<$Res> {
+  factory $AddUserDatabaseStateCopyWith(AddUserDatabaseState value,
+          $Res Function(AddUserDatabaseState) then) =
+      _$AddUserDatabaseStateCopyWithImpl<$Res>;
+}
+
+/// @nodoc
+class _$AddUserDatabaseStateCopyWithImpl<$Res>
+    implements $AddUserDatabaseStateCopyWith<$Res> {
+  _$AddUserDatabaseStateCopyWithImpl(this._value, this._then);
+
+  final AddUserDatabaseState _value;
+  // ignore: unused_field
+  final $Res Function(AddUserDatabaseState) _then;
+}
+
+/// @nodoc
+abstract class $AddUserDatabaseIdleCopyWith<$Res> {
+  factory $AddUserDatabaseIdleCopyWith(
+          AddUserDatabaseIdle value, $Res Function(AddUserDatabaseIdle) then) =
+      _$AddUserDatabaseIdleCopyWithImpl<$Res>;
+}
+
+/// @nodoc
+class _$AddUserDatabaseIdleCopyWithImpl<$Res>
+    extends _$AddUserDatabaseStateCopyWithImpl<$Res>
+    implements $AddUserDatabaseIdleCopyWith<$Res> {
+  _$AddUserDatabaseIdleCopyWithImpl(
+      AddUserDatabaseIdle _value, $Res Function(AddUserDatabaseIdle) _then)
+      : super(_value, (v) => _then(v as AddUserDatabaseIdle));
+
+  @override
+  AddUserDatabaseIdle get _value => super._value as AddUserDatabaseIdle;
+}
+
+/// @nodoc
+
+class _$AddUserDatabaseIdle implements AddUserDatabaseIdle {
+  const _$AddUserDatabaseIdle();
+
+  @override
+  String toString() {
+    return 'AddUserDatabaseState()';
+  }
+
+  @override
+  bool operator ==(dynamic other) {
+    return identical(this, other) ||
+        (other.runtimeType == runtimeType && other is AddUserDatabaseIdle);
+  }
+
+  @override
+  int get hashCode => runtimeType.hashCode;
+
+  @override
+  @optionalTypeArgs
+  TResult when<TResult extends Object?>(
+    TResult Function() $default, {
+    required TResult Function() processing,
+    required TResult Function(EUserData user) done,
+    required TResult Function(String? message) error,
+  }) {
+    return $default();
+  }
+
+  @override
+  @optionalTypeArgs
+  TResult? whenOrNull<TResult extends Object?>(
+    TResult Function()? $default, {
+    TResult Function()? processing,
+    TResult Function(EUserData user)? done,
+    TResult Function(String? message)? error,
+  }) {
+    return $default?.call();
+  }
+
+  @override
+  @optionalTypeArgs
+  TResult maybeWhen<TResult extends Object?>(
+    TResult Function()? $default, {
+    TResult Function()? processing,
+    TResult Function(EUserData user)? done,
+    TResult Function(String? message)? error,
+    required TResult orElse(),
+  }) {
+    if ($default != null) {
+      return $default();
+    }
+    return orElse();
+  }
+
+  @override
+  @optionalTypeArgs
+  TResult map<TResult extends Object?>(
+    TResult Function(AddUserDatabaseIdle value) $default, {
+    required TResult Function(AddUserDatabaseProcessing value) processing,
+    required TResult Function(AddUserDatabaseDone value) done,
+    required TResult Function(AddUserDatabaseError value) error,
+  }) {
+    return $default(this);
+  }
+
+  @override
+  @optionalTypeArgs
+  TResult? mapOrNull<TResult extends Object?>(
+    TResult Function(AddUserDatabaseIdle value)? $default, {
+    TResult Function(AddUserDatabaseProcessing value)? processing,
+    TResult Function(AddUserDatabaseDone value)? done,
+    TResult Function(AddUserDatabaseError value)? error,
+  }) {
+    return $default?.call(this);
+  }
+
+  @override
+  @optionalTypeArgs
+  TResult maybeMap<TResult extends Object?>(
+    TResult Function(AddUserDatabaseIdle value)? $default, {
+    TResult Function(AddUserDatabaseProcessing value)? processing,
+    TResult Function(AddUserDatabaseDone value)? done,
+    TResult Function(AddUserDatabaseError value)? error,
+    required TResult orElse(),
+  }) {
+    if ($default != null) {
+      return $default(this);
+    }
+    return orElse();
+  }
+}
+
+abstract class AddUserDatabaseIdle implements AddUserDatabaseState {
+  const factory AddUserDatabaseIdle() = _$AddUserDatabaseIdle;
+}
+
+/// @nodoc
+abstract class $AddUserDatabaseProcessingCopyWith<$Res> {
+  factory $AddUserDatabaseProcessingCopyWith(AddUserDatabaseProcessing value,
+          $Res Function(AddUserDatabaseProcessing) then) =
+      _$AddUserDatabaseProcessingCopyWithImpl<$Res>;
+}
+
+/// @nodoc
+class _$AddUserDatabaseProcessingCopyWithImpl<$Res>
+    extends _$AddUserDatabaseStateCopyWithImpl<$Res>
+    implements $AddUserDatabaseProcessingCopyWith<$Res> {
+  _$AddUserDatabaseProcessingCopyWithImpl(AddUserDatabaseProcessing _value,
+      $Res Function(AddUserDatabaseProcessing) _then)
+      : super(_value, (v) => _then(v as AddUserDatabaseProcessing));
+
+  @override
+  AddUserDatabaseProcessing get _value =>
+      super._value as AddUserDatabaseProcessing;
+}
+
+/// @nodoc
+
+class _$AddUserDatabaseProcessing implements AddUserDatabaseProcessing {
+  const _$AddUserDatabaseProcessing();
+
+  @override
+  String toString() {
+    return 'AddUserDatabaseState.processing()';
+  }
+
+  @override
+  bool operator ==(dynamic other) {
+    return identical(this, other) ||
+        (other.runtimeType == runtimeType &&
+            other is AddUserDatabaseProcessing);
+  }
+
+  @override
+  int get hashCode => runtimeType.hashCode;
+
+  @override
+  @optionalTypeArgs
+  TResult when<TResult extends Object?>(
+    TResult Function() $default, {
+    required TResult Function() processing,
+    required TResult Function(EUserData user) done,
+    required TResult Function(String? message) error,
+  }) {
+    return processing();
+  }
+
+  @override
+  @optionalTypeArgs
+  TResult? whenOrNull<TResult extends Object?>(
+    TResult Function()? $default, {
+    TResult Function()? processing,
+    TResult Function(EUserData user)? done,
+    TResult Function(String? message)? error,
+  }) {
+    return processing?.call();
+  }
+
+  @override
+  @optionalTypeArgs
+  TResult maybeWhen<TResult extends Object?>(
+    TResult Function()? $default, {
+    TResult Function()? processing,
+    TResult Function(EUserData user)? done,
+    TResult Function(String? message)? error,
+    required TResult orElse(),
+  }) {
+    if (processing != null) {
+      return processing();
+    }
+    return orElse();
+  }
+
+  @override
+  @optionalTypeArgs
+  TResult map<TResult extends Object?>(
+    TResult Function(AddUserDatabaseIdle value) $default, {
+    required TResult Function(AddUserDatabaseProcessing value) processing,
+    required TResult Function(AddUserDatabaseDone value) done,
+    required TResult Function(AddUserDatabaseError value) error,
+  }) {
+    return processing(this);
+  }
+
+  @override
+  @optionalTypeArgs
+  TResult? mapOrNull<TResult extends Object?>(
+    TResult Function(AddUserDatabaseIdle value)? $default, {
+    TResult Function(AddUserDatabaseProcessing value)? processing,
+    TResult Function(AddUserDatabaseDone value)? done,
+    TResult Function(AddUserDatabaseError value)? error,
+  }) {
+    return processing?.call(this);
+  }
+
+  @override
+  @optionalTypeArgs
+  TResult maybeMap<TResult extends Object?>(
+    TResult Function(AddUserDatabaseIdle value)? $default, {
+    TResult Function(AddUserDatabaseProcessing value)? processing,
+    TResult Function(AddUserDatabaseDone value)? done,
+    TResult Function(AddUserDatabaseError value)? error,
+    required TResult orElse(),
+  }) {
+    if (processing != null) {
+      return processing(this);
+    }
+    return orElse();
+  }
+}
+
+abstract class AddUserDatabaseProcessing implements AddUserDatabaseState {
+  const factory AddUserDatabaseProcessing() = _$AddUserDatabaseProcessing;
+}
+
+/// @nodoc
+abstract class $AddUserDatabaseDoneCopyWith<$Res> {
+  factory $AddUserDatabaseDoneCopyWith(
+          AddUserDatabaseDone value, $Res Function(AddUserDatabaseDone) then) =
+      _$AddUserDatabaseDoneCopyWithImpl<$Res>;
+  $Res call({EUserData user});
+}
+
+/// @nodoc
+class _$AddUserDatabaseDoneCopyWithImpl<$Res>
+    extends _$AddUserDatabaseStateCopyWithImpl<$Res>
+    implements $AddUserDatabaseDoneCopyWith<$Res> {
+  _$AddUserDatabaseDoneCopyWithImpl(
+      AddUserDatabaseDone _value, $Res Function(AddUserDatabaseDone) _then)
+      : super(_value, (v) => _then(v as AddUserDatabaseDone));
+
+  @override
+  AddUserDatabaseDone get _value => super._value as AddUserDatabaseDone;
+
+  @override
+  $Res call({
+    Object? user = freezed,
+  }) {
+    return _then(AddUserDatabaseDone(
+      user == freezed
+          ? _value.user
+          : user // ignore: cast_nullable_to_non_nullable
+              as EUserData,
+    ));
+  }
+}
+
+/// @nodoc
+
+class _$AddUserDatabaseDone implements AddUserDatabaseDone {
+  const _$AddUserDatabaseDone(this.user);
+
+  @override
+  final EUserData user;
+
+  @override
+  String toString() {
+    return 'AddUserDatabaseState.done(user: $user)';
+  }
+
+  @override
+  bool operator ==(dynamic other) {
+    return identical(this, other) ||
+        (other.runtimeType == runtimeType &&
+            other is AddUserDatabaseDone &&
+            const DeepCollectionEquality().equals(other.user, user));
+  }
+
+  @override
+  int get hashCode =>
+      Object.hash(runtimeType, const DeepCollectionEquality().hash(user));
+
+  @JsonKey(ignore: true)
+  @override
+  $AddUserDatabaseDoneCopyWith<AddUserDatabaseDone> get copyWith =>
+      _$AddUserDatabaseDoneCopyWithImpl<AddUserDatabaseDone>(this, _$identity);
+
+  @override
+  @optionalTypeArgs
+  TResult when<TResult extends Object?>(
+    TResult Function() $default, {
+    required TResult Function() processing,
+    required TResult Function(EUserData user) done,
+    required TResult Function(String? message) error,
+  }) {
+    return done(user);
+  }
+
+  @override
+  @optionalTypeArgs
+  TResult? whenOrNull<TResult extends Object?>(
+    TResult Function()? $default, {
+    TResult Function()? processing,
+    TResult Function(EUserData user)? done,
+    TResult Function(String? message)? error,
+  }) {
+    return done?.call(user);
+  }
+
+  @override
+  @optionalTypeArgs
+  TResult maybeWhen<TResult extends Object?>(
+    TResult Function()? $default, {
+    TResult Function()? processing,
+    TResult Function(EUserData user)? done,
+    TResult Function(String? message)? error,
+    required TResult orElse(),
+  }) {
+    if (done != null) {
+      return done(user);
+    }
+    return orElse();
+  }
+
+  @override
+  @optionalTypeArgs
+  TResult map<TResult extends Object?>(
+    TResult Function(AddUserDatabaseIdle value) $default, {
+    required TResult Function(AddUserDatabaseProcessing value) processing,
+    required TResult Function(AddUserDatabaseDone value) done,
+    required TResult Function(AddUserDatabaseError value) error,
+  }) {
+    return done(this);
+  }
+
+  @override
+  @optionalTypeArgs
+  TResult? mapOrNull<TResult extends Object?>(
+    TResult Function(AddUserDatabaseIdle value)? $default, {
+    TResult Function(AddUserDatabaseProcessing value)? processing,
+    TResult Function(AddUserDatabaseDone value)? done,
+    TResult Function(AddUserDatabaseError value)? error,
+  }) {
+    return done?.call(this);
+  }
+
+  @override
+  @optionalTypeArgs
+  TResult maybeMap<TResult extends Object?>(
+    TResult Function(AddUserDatabaseIdle value)? $default, {
+    TResult Function(AddUserDatabaseProcessing value)? processing,
+    TResult Function(AddUserDatabaseDone value)? done,
+    TResult Function(AddUserDatabaseError value)? error,
+    required TResult orElse(),
+  }) {
+    if (done != null) {
+      return done(this);
+    }
+    return orElse();
+  }
+}
+
+abstract class AddUserDatabaseDone implements AddUserDatabaseState {
+  const factory AddUserDatabaseDone(EUserData user) = _$AddUserDatabaseDone;
+
+  EUserData get user;
+  @JsonKey(ignore: true)
+  $AddUserDatabaseDoneCopyWith<AddUserDatabaseDone> get copyWith =>
+      throw _privateConstructorUsedError;
+}
+
+/// @nodoc
+abstract class $AddUserDatabaseErrorCopyWith<$Res> {
+  factory $AddUserDatabaseErrorCopyWith(AddUserDatabaseError value,
+          $Res Function(AddUserDatabaseError) then) =
+      _$AddUserDatabaseErrorCopyWithImpl<$Res>;
+  $Res call({String? message});
+}
+
+/// @nodoc
+class _$AddUserDatabaseErrorCopyWithImpl<$Res>
+    extends _$AddUserDatabaseStateCopyWithImpl<$Res>
+    implements $AddUserDatabaseErrorCopyWith<$Res> {
+  _$AddUserDatabaseErrorCopyWithImpl(
+      AddUserDatabaseError _value, $Res Function(AddUserDatabaseError) _then)
+      : super(_value, (v) => _then(v as AddUserDatabaseError));
+
+  @override
+  AddUserDatabaseError get _value => super._value as AddUserDatabaseError;
+
+  @override
+  $Res call({
+    Object? message = freezed,
+  }) {
+    return _then(AddUserDatabaseError(
+      message: message == freezed
+          ? _value.message
+          : message // ignore: cast_nullable_to_non_nullable
+              as String?,
+    ));
+  }
+}
+
+/// @nodoc
+
+class _$AddUserDatabaseError implements AddUserDatabaseError {
+  const _$AddUserDatabaseError({this.message});
+
+  @override
+  final String? message;
+
+  @override
+  String toString() {
+    return 'AddUserDatabaseState.error(message: $message)';
+  }
+
+  @override
+  bool operator ==(dynamic other) {
+    return identical(this, other) ||
+        (other.runtimeType == runtimeType &&
+            other is AddUserDatabaseError &&
+            const DeepCollectionEquality().equals(other.message, message));
+  }
+
+  @override
+  int get hashCode =>
+      Object.hash(runtimeType, const DeepCollectionEquality().hash(message));
+
+  @JsonKey(ignore: true)
+  @override
+  $AddUserDatabaseErrorCopyWith<AddUserDatabaseError> get copyWith =>
+      _$AddUserDatabaseErrorCopyWithImpl<AddUserDatabaseError>(
+          this, _$identity);
+
+  @override
+  @optionalTypeArgs
+  TResult when<TResult extends Object?>(
+    TResult Function() $default, {
+    required TResult Function() processing,
+    required TResult Function(EUserData user) done,
+    required TResult Function(String? message) error,
+  }) {
+    return error(message);
+  }
+
+  @override
+  @optionalTypeArgs
+  TResult? whenOrNull<TResult extends Object?>(
+    TResult Function()? $default, {
+    TResult Function()? processing,
+    TResult Function(EUserData user)? done,
+    TResult Function(String? message)? error,
+  }) {
+    return error?.call(message);
+  }
+
+  @override
+  @optionalTypeArgs
+  TResult maybeWhen<TResult extends Object?>(
+    TResult Function()? $default, {
+    TResult Function()? processing,
+    TResult Function(EUserData user)? done,
+    TResult Function(String? message)? error,
+    required TResult orElse(),
+  }) {
+    if (error != null) {
+      return error(message);
+    }
+    return orElse();
+  }
+
+  @override
+  @optionalTypeArgs
+  TResult map<TResult extends Object?>(
+    TResult Function(AddUserDatabaseIdle value) $default, {
+    required TResult Function(AddUserDatabaseProcessing value) processing,
+    required TResult Function(AddUserDatabaseDone value) done,
+    required TResult Function(AddUserDatabaseError value) error,
+  }) {
+    return error(this);
+  }
+
+  @override
+  @optionalTypeArgs
+  TResult? mapOrNull<TResult extends Object?>(
+    TResult Function(AddUserDatabaseIdle value)? $default, {
+    TResult Function(AddUserDatabaseProcessing value)? processing,
+    TResult Function(AddUserDatabaseDone value)? done,
+    TResult Function(AddUserDatabaseError value)? error,
+  }) {
+    return error?.call(this);
+  }
+
+  @override
+  @optionalTypeArgs
+  TResult maybeMap<TResult extends Object?>(
+    TResult Function(AddUserDatabaseIdle value)? $default, {
+    TResult Function(AddUserDatabaseProcessing value)? processing,
+    TResult Function(AddUserDatabaseDone value)? done,
+    TResult Function(AddUserDatabaseError value)? error,
+    required TResult orElse(),
+  }) {
+    if (error != null) {
+      return error(this);
+    }
+    return orElse();
+  }
+}
+
+abstract class AddUserDatabaseError implements AddUserDatabaseState {
+  const factory AddUserDatabaseError({String? message}) =
+      _$AddUserDatabaseError;
+
+  String? get message;
+  @JsonKey(ignore: true)
+  $AddUserDatabaseErrorCopyWith<AddUserDatabaseError> get copyWith =>
+      throw _privateConstructorUsedError;
+}

lib/application/states/email_auth_state.dart

@@ -0,0 +1,14 @@
+import 'package:freezed_annotation/freezed_annotation.dart';
+import 'package:my_flutter_puzzle/models/user_info.dart';
+
+part 'email_auth_state.freezed.dart';
+
+@freezed
+class EmailAuthState with _$EmailAuthState {
+  const factory EmailAuthState() = EmailAuthIdle;
+  const factory EmailAuthState.processing() = EmailAuthProcessing;
+  const factory EmailAuthState.done(EUserData user) = EmailAuthDone;
+  const factory EmailAuthState.storingInfo() = UserStorageProcessing;
+  const factory EmailAuthState.storageDone(EUserData userData) = UserStorageDone;
+  const factory EmailAuthState.error({String? message}) = EmailAuthError;
+}

lib/application/states/email_auth_state.freezed.dart

@@ -0,0 +1,997 @@
+// coverage:ignore-file
+// GENERATED CODE - DO NOT MODIFY BY HAND
+// ignore_for_file: type=lint
+// ignore_for_file: unused_element, deprecated_member_use, deprecated_member_use_from_same_package, use_function_type_syntax_for_parameters, unnecessary_const, avoid_init_to_null, invalid_override_different_default_values_named, prefer_expression_function_bodies, annotate_overrides, invalid_annotation_target
+
+part of 'email_auth_state.dart';
+
+// **************************************************************************
+// FreezedGenerator
+// **************************************************************************
+
+T _$identity<T>(T value) => value;
+
+final _privateConstructorUsedError = UnsupportedError(
+    'It seems like you constructed your class using `MyClass._()`. This constructor is only meant to be used by freezed and you are not supposed to need it nor use it.\nPlease check the documentation here for more informations: https://github.com/rrousselGit/freezed#custom-getters-and-methods');
+
+/// @nodoc
+class _$EmailAuthStateTearOff {
+  const _$EmailAuthStateTearOff();
+
+  EmailAuthIdle call() {
+    return const EmailAuthIdle();
+  }
+
+  EmailAuthProcessing processing() {
+    return const EmailAuthProcessing();
+  }
+
+  EmailAuthDone done(EUserData user) {
+    return EmailAuthDone(
+      user,
+    );
+  }
+
+  UserStorageProcessing storingInfo() {
+    return const UserStorageProcessing();
+  }
+
+  UserStorageDone storageDone(EUserData userData) {
+    return UserStorageDone(
+      userData,
+    );
+  }
+
+  EmailAuthError error({String? message}) {
+    return EmailAuthError(
+      message: message,
+    );
+  }
+}
+
+/// @nodoc
+const $EmailAuthState = _$EmailAuthStateTearOff();
+
+/// @nodoc
+mixin _$EmailAuthState {
+  @optionalTypeArgs
+  TResult when<TResult extends Object?>(
+    TResult Function() $default, {
+    required TResult Function() processing,
+    required TResult Function(EUserData user) done,
+    required TResult Function() storingInfo,
+    required TResult Function(EUserData userData) storageDone,
+    required TResult Function(String? message) error,
+  }) =>
+      throw _privateConstructorUsedError;
+  @optionalTypeArgs
+  TResult? whenOrNull<TResult extends Object?>(
+    TResult Function()? $default, {
+    TResult Function()? processing,
+    TResult Function(EUserData user)? done,
+    TResult Function()? storingInfo,
+    TResult Function(EUserData userData)? storageDone,
+    TResult Function(String? message)? error,
+  }) =>
+      throw _privateConstructorUsedError;
+  @optionalTypeArgs
+  TResult maybeWhen<TResult extends Object?>(
+    TResult Function()? $default, {
+    TResult Function()? processing,
+    TResult Function(EUserData user)? done,
+    TResult Function()? storingInfo,
+    TResult Function(EUserData userData)? storageDone,
+    TResult Function(String? message)? error,
+    required TResult orElse(),
+  }) =>
+      throw _privateConstructorUsedError;
+  @optionalTypeArgs
+  TResult map<TResult extends Object?>(
+    TResult Function(EmailAuthIdle value) $default, {
+    required TResult Function(EmailAuthProcessing value) processing,
+    required TResult Function(EmailAuthDone value) done,
+    required TResult Function(UserStorageProcessing value) storingInfo,
+    required TResult Function(UserStorageDone value) storageDone,
+    required TResult Function(EmailAuthError value) error,
+  }) =>
+      throw _privateConstructorUsedError;
+  @optionalTypeArgs
+  TResult? mapOrNull<TResult extends Object?>(
+    TResult Function(EmailAuthIdle value)? $default, {
+    TResult Function(EmailAuthProcessing value)? processing,
+    TResult Function(EmailAuthDone value)? done,
+    TResult Function(UserStorageProcessing value)? storingInfo,
+    TResult Function(UserStorageDone value)? storageDone,
+    TResult Function(EmailAuthError value)? error,
+  }) =>
+      throw _privateConstructorUsedError;
+  @optionalTypeArgs
+  TResult maybeMap<TResult extends Object?>(
+    TResult Function(EmailAuthIdle value)? $default, {
+    TResult Function(EmailAuthProcessing value)? processing,
+    TResult Function(EmailAuthDone value)? done,
+    TResult Function(UserStorageProcessing value)? storingInfo,
+    TResult Function(UserStorageDone value)? storageDone,
+    TResult Function(EmailAuthError value)? error,
+    required TResult orElse(),
+  }) =>
+      throw _privateConstructorUsedError;
+}
+
+/// @nodoc
+abstract class $EmailAuthStateCopyWith<$Res> {
+  factory $EmailAuthStateCopyWith(
+          EmailAuthState value, $Res Function(EmailAuthState) then) =
+      _$EmailAuthStateCopyWithImpl<$Res>;
+}
+
+/// @nodoc
+class _$EmailAuthStateCopyWithImpl<$Res>
+    implements $EmailAuthStateCopyWith<$Res> {
+  _$EmailAuthStateCopyWithImpl(this._value, this._then);
+
+  final EmailAuthState _value;
+  // ignore: unused_field
+  final $Res Function(EmailAuthState) _then;
+}
+
+/// @nodoc
+abstract class $EmailAuthIdleCopyWith<$Res> {
+  factory $EmailAuthIdleCopyWith(
+          EmailAuthIdle value, $Res Function(EmailAuthIdle) then) =
+      _$EmailAuthIdleCopyWithImpl<$Res>;
+}
+
+/// @nodoc
+class _$EmailAuthIdleCopyWithImpl<$Res>
+    extends _$EmailAuthStateCopyWithImpl<$Res>
+    implements $EmailAuthIdleCopyWith<$Res> {
+  _$EmailAuthIdleCopyWithImpl(
+      EmailAuthIdle _value, $Res Function(EmailAuthIdle) _then)
+      : super(_value, (v) => _then(v as EmailAuthIdle));
+
+  @override
+  EmailAuthIdle get _value => super._value as EmailAuthIdle;
+}
+
+/// @nodoc
+
+class _$EmailAuthIdle implements EmailAuthIdle {
+  const _$EmailAuthIdle();
+
+  @override
+  String toString() {
+    return 'EmailAuthState()';
+  }
+
+  @override
+  bool operator ==(dynamic other) {
+    return identical(this, other) ||
+        (other.runtimeType == runtimeType && other is EmailAuthIdle);
+  }
+
+  @override
+  int get hashCode => runtimeType.hashCode;
+
+  @override
+  @optionalTypeArgs
+  TResult when<TResult extends Object?>(
+    TResult Function() $default, {
+    required TResult Function() processing,
+    required TResult Function(EUserData user) done,
+    required TResult Function() storingInfo,
+    required TResult Function(EUserData userData) storageDone,
+    required TResult Function(String? message) error,
+  }) {
+    return $default();
+  }
+
+  @override
+  @optionalTypeArgs
+  TResult? whenOrNull<TResult extends Object?>(
+    TResult Function()? $default, {
+    TResult Function()? processing,
+    TResult Function(EUserData user)? done,
+    TResult Function()? storingInfo,
+    TResult Function(EUserData userData)? storageDone,
+    TResult Function(String? message)? error,
+  }) {
+    return $default?.call();
+  }
+
+  @override
+  @optionalTypeArgs
+  TResult maybeWhen<TResult extends Object?>(
+    TResult Function()? $default, {
+    TResult Function()? processing,
+    TResult Function(EUserData user)? done,
+    TResult Function()? storingInfo,
+    TResult Function(EUserData userData)? storageDone,
+    TResult Function(String? message)? error,
+    required TResult orElse(),
+  }) {
+    if ($default != null) {
+      return $default();
+    }
+    return orElse();
+  }
+
+  @override
+  @optionalTypeArgs
+  TResult map<TResult extends Object?>(
+    TResult Function(EmailAuthIdle value) $default, {
+    required TResult Function(EmailAuthProcessing value) processing,
+    required TResult Function(EmailAuthDone value) done,
+    required TResult Function(UserStorageProcessing value) storingInfo,
+    required TResult Function(UserStorageDone value) storageDone,
+    required TResult Function(EmailAuthError value) error,
+  }) {
+    return $default(this);
+  }
+
+  @override
+  @optionalTypeArgs
+  TResult? mapOrNull<TResult extends Object?>(
+    TResult Function(EmailAuthIdle value)? $default, {
+    TResult Function(EmailAuthProcessing value)? processing,
+    TResult Function(EmailAuthDone value)? done,
+    TResult Function(UserStorageProcessing value)? storingInfo,
+    TResult Function(UserStorageDone value)? storageDone,
+    TResult Function(EmailAuthError value)? error,
+  }) {
+    return $default?.call(this);
+  }
+
+  @override
+  @optionalTypeArgs
+  TResult maybeMap<TResult extends Object?>(
+    TResult Function(EmailAuthIdle value)? $default, {
+    TResult Function(EmailAuthProcessing value)? processing,
+    TResult Function(EmailAuthDone value)? done,
+    TResult Function(UserStorageProcessing value)? storingInfo,
+    TResult Function(UserStorageDone value)? storageDone,
+    TResult Function(EmailAuthError value)? error,
+    required TResult orElse(),
+  }) {
+    if ($default != null) {
+      return $default(this);
+    }
+    return orElse();
+  }
+}
+
+abstract class EmailAuthIdle implements EmailAuthState {
+  const factory EmailAuthIdle() = _$EmailAuthIdle;
+}
+
+/// @nodoc
+abstract class $EmailAuthProcessingCopyWith<$Res> {
+  factory $EmailAuthProcessingCopyWith(
+          EmailAuthProcessing value, $Res Function(EmailAuthProcessing) then) =
+      _$EmailAuthProcessingCopyWithImpl<$Res>;
+}
+
+/// @nodoc
+class _$EmailAuthProcessingCopyWithImpl<$Res>
+    extends _$EmailAuthStateCopyWithImpl<$Res>
+    implements $EmailAuthProcessingCopyWith<$Res> {
+  _$EmailAuthProcessingCopyWithImpl(
+      EmailAuthProcessing _value, $Res Function(EmailAuthProcessing) _then)
+      : super(_value, (v) => _then(v as EmailAuthProcessing));
+
+  @override
+  EmailAuthProcessing get _value => super._value as EmailAuthProcessing;
+}
+
+/// @nodoc
+
+class _$EmailAuthProcessing implements EmailAuthProcessing {
+  const _$EmailAuthProcessing();
+
+  @override
+  String toString() {
+    return 'EmailAuthState.processing()';
+  }
+
+  @override
+  bool operator ==(dynamic other) {
+    return identical(this, other) ||
+        (other.runtimeType == runtimeType && other is EmailAuthProcessing);
+  }
+
+  @override
+  int get hashCode => runtimeType.hashCode;
+
+  @override
+  @optionalTypeArgs
+  TResult when<TResult extends Object?>(
+    TResult Function() $default, {
+    required TResult Function() processing,
+    required TResult Function(EUserData user) done,
+    required TResult Function() storingInfo,
+    required TResult Function(EUserData userData) storageDone,
+    required TResult Function(String? message) error,
+  }) {
+    return processing();
+  }
+
+  @override
+  @optionalTypeArgs
+  TResult? whenOrNull<TResult extends Object?>(
+    TResult Function()? $default, {
+    TResult Function()? processing,
+    TResult Function(EUserData user)? done,
+    TResult Function()? storingInfo,
+    TResult Function(EUserData userData)? storageDone,
+    TResult Function(String? message)? error,
+  }) {
+    return processing?.call();
+  }
+
+  @override
+  @optionalTypeArgs
+  TResult maybeWhen<TResult extends Object?>(
+    TResult Function()? $default, {
+    TResult Function()? processing,
+    TResult Function(EUserData user)? done,
+    TResult Function()? storingInfo,
+    TResult Function(EUserData userData)? storageDone,
+    TResult Function(String? message)? error,
+    required TResult orElse(),
+  }) {
+    if (processing != null) {
+      return processing();
+    }
+    return orElse();
+  }
+
+  @override
+  @optionalTypeArgs
+  TResult map<TResult extends Object?>(
+    TResult Function(EmailAuthIdle value) $default, {
+    required TResult Function(EmailAuthProcessing value) processing,
+    required TResult Function(EmailAuthDone value) done,
+    required TResult Function(UserStorageProcessing value) storingInfo,
+    required TResult Function(UserStorageDone value) storageDone,
+    required TResult Function(EmailAuthError value) error,
+  }) {
+    return processing(this);
+  }
+
+  @override
+  @optionalTypeArgs
+  TResult? mapOrNull<TResult extends Object?>(
+    TResult Function(EmailAuthIdle value)? $default, {
+    TResult Function(EmailAuthProcessing value)? processing,
+    TResult Function(EmailAuthDone value)? done,
+    TResult Function(UserStorageProcessing value)? storingInfo,
+    TResult Function(UserStorageDone value)? storageDone,
+    TResult Function(EmailAuthError value)? error,
+  }) {
+    return processing?.call(this);
+  }
+
+  @override
+  @optionalTypeArgs
+  TResult maybeMap<TResult extends Object?>(
+    TResult Function(EmailAuthIdle value)? $default, {
+    TResult Function(EmailAuthProcessing value)? processing,
+    TResult Function(EmailAuthDone value)? done,
+    TResult Function(UserStorageProcessing value)? storingInfo,
+    TResult Function(UserStorageDone value)? storageDone,
+    TResult Function(EmailAuthError value)? error,
+    required TResult orElse(),
+  }) {
+    if (processing != null) {
+      return processing(this);
+    }
+    return orElse();
+  }
+}
+
+abstract class EmailAuthProcessing implements EmailAuthState {
+  const factory EmailAuthProcessing() = _$EmailAuthProcessing;
+}
+
+/// @nodoc
+abstract class $EmailAuthDoneCopyWith<$Res> {
+  factory $EmailAuthDoneCopyWith(
+          EmailAuthDone value, $Res Function(EmailAuthDone) then) =
+      _$EmailAuthDoneCopyWithImpl<$Res>;
+  $Res call({EUserData user});
+}
+
+/// @nodoc
+class _$EmailAuthDoneCopyWithImpl<$Res>
+    extends _$EmailAuthStateCopyWithImpl<$Res>
+    implements $EmailAuthDoneCopyWith<$Res> {
+  _$EmailAuthDoneCopyWithImpl(
+      EmailAuthDone _value, $Res Function(EmailAuthDone) _then)
+      : super(_value, (v) => _then(v as EmailAuthDone));
+
+  @override
+  EmailAuthDone get _value => super._value as EmailAuthDone;
+
+  @override
+  $Res call({
+    Object? user = freezed,
+  }) {
+    return _then(EmailAuthDone(
+      user == freezed
+          ? _value.user
+          : user // ignore: cast_nullable_to_non_nullable
+              as EUserData,
+    ));
+  }
+}
+
+/// @nodoc
+
+class _$EmailAuthDone implements EmailAuthDone {
+  const _$EmailAuthDone(this.user);
+
+  @override
+  final EUserData user;
+
+  @override
+  String toString() {
+    return 'EmailAuthState.done(user: $user)';
+  }
+
+  @override
+  bool operator ==(dynamic other) {
+    return identical(this, other) ||
+        (other.runtimeType == runtimeType &&
+            other is EmailAuthDone &&
+            const DeepCollectionEquality().equals(other.user, user));
+  }
+
+  @override
+  int get hashCode =>
+      Object.hash(runtimeType, const DeepCollectionEquality().hash(user));
+
+  @JsonKey(ignore: true)
+  @override
+  $EmailAuthDoneCopyWith<EmailAuthDone> get copyWith =>
+      _$EmailAuthDoneCopyWithImpl<EmailAuthDone>(this, _$identity);
+
+  @override
+  @optionalTypeArgs
+  TResult when<TResult extends Object?>(
+    TResult Function() $default, {
+    required TResult Function() processing,
+    required TResult Function(EUserData user) done,
+    required TResult Function() storingInfo,
+    required TResult Function(EUserData userData) storageDone,
+    required TResult Function(String? message) error,
+  }) {
+    return done(user);
+  }
+
+  @override
+  @optionalTypeArgs
+  TResult? whenOrNull<TResult extends Object?>(
+    TResult Function()? $default, {
+    TResult Function()? processing,
+    TResult Function(EUserData user)? done,
+    TResult Function()? storingInfo,
+    TResult Function(EUserData userData)? storageDone,
+    TResult Function(String? message)? error,
+  }) {
+    return done?.call(user);
+  }
+
+  @override
+  @optionalTypeArgs
+  TResult maybeWhen<TResult extends Object?>(
+    TResult Function()? $default, {
+    TResult Function()? processing,
+    TResult Function(EUserData user)? done,
+    TResult Function()? storingInfo,
+    TResult Function(EUserData userData)? storageDone,
+    TResult Function(String? message)? error,
+    required TResult orElse(),
+  }) {
+    if (done != null) {
+      return done(user);
+    }
+    return orElse();
+  }
+
+  @override
+  @optionalTypeArgs
+  TResult map<TResult extends Object?>(
+    TResult Function(EmailAuthIdle value) $default, {
+    required TResult Function(EmailAuthProcessing value) processing,
+    required TResult Function(EmailAuthDone value) done,
+    required TResult Function(UserStorageProcessing value) storingInfo,
+    required TResult Function(UserStorageDone value) storageDone,
+    required TResult Function(EmailAuthError value) error,
+  }) {
+    return done(this);
+  }
+
+  @override
+  @optionalTypeArgs
+  TResult? mapOrNull<TResult extends Object?>(
+    TResult Function(EmailAuthIdle value)? $default, {
+    TResult Function(EmailAuthProcessing value)? processing,
+    TResult Function(EmailAuthDone value)? done,
+    TResult Function(UserStorageProcessing value)? storingInfo,
+    TResult Function(UserStorageDone value)? storageDone,
+    TResult Function(EmailAuthError value)? error,
+  }) {
+    return done?.call(this);
+  }
+
+  @override
+  @optionalTypeArgs
+  TResult maybeMap<TResult extends Object?>(
+    TResult Function(EmailAuthIdle value)? $default, {
+    TResult Function(EmailAuthProcessing value)? processing,
+    TResult Function(EmailAuthDone value)? done,
+    TResult Function(UserStorageProcessing value)? storingInfo,
+    TResult Function(UserStorageDone value)? storageDone,
+    TResult Function(EmailAuthError value)? error,
+    required TResult orElse(),
+  }) {
+    if (done != null) {
+      return done(this);
+    }
+    return orElse();
+  }
+}
+
+abstract class EmailAuthDone implements EmailAuthState {
+  const factory EmailAuthDone(EUserData user) = _$EmailAuthDone;
+
+  EUserData get user;
+  @JsonKey(ignore: true)
+  $EmailAuthDoneCopyWith<EmailAuthDone> get copyWith =>
+      throw _privateConstructorUsedError;
+}
+
+/// @nodoc
+abstract class $UserStorageProcessingCopyWith<$Res> {
+  factory $UserStorageProcessingCopyWith(UserStorageProcessing value,
+          $Res Function(UserStorageProcessing) then) =
+      _$UserStorageProcessingCopyWithImpl<$Res>;
+}
+
+/// @nodoc
+class _$UserStorageProcessingCopyWithImpl<$Res>
+    extends _$EmailAuthStateCopyWithImpl<$Res>
+    implements $UserStorageProcessingCopyWith<$Res> {
+  _$UserStorageProcessingCopyWithImpl(
+      UserStorageProcessing _value, $Res Function(UserStorageProcessing) _then)
+      : super(_value, (v) => _then(v as UserStorageProcessing));
+
+  @override
+  UserStorageProcessing get _value => super._value as UserStorageProcessing;
+}
+
+/// @nodoc
+
+class _$UserStorageProcessing implements UserStorageProcessing {
+  const _$UserStorageProcessing();
+
+  @override
+  String toString() {
+    return 'EmailAuthState.storingInfo()';
+  }
+
+  @override
+  bool operator ==(dynamic other) {
+    return identical(this, other) ||
+        (other.runtimeType == runtimeType && other is UserStorageProcessing);
+  }
+
+  @override
+  int get hashCode => runtimeType.hashCode;
+
+  @override
+  @optionalTypeArgs
+  TResult when<TResult extends Object?>(
+    TResult Function() $default, {
+    required TResult Function() processing,
+    required TResult Function(EUserData user) done,
+    required TResult Function() storingInfo,
+    required TResult Function(EUserData userData) storageDone,
+    required TResult Function(String? message) error,
+  }) {
+    return storingInfo();
+  }
+
+  @override
+  @optionalTypeArgs
+  TResult? whenOrNull<TResult extends Object?>(
+    TResult Function()? $default, {
+    TResult Function()? processing,
+    TResult Function(EUserData user)? done,
+    TResult Function()? storingInfo,
+    TResult Function(EUserData userData)? storageDone,
+    TResult Function(String? message)? error,
+  }) {
+    return storingInfo?.call();
+  }
+
+  @override
+  @optionalTypeArgs
+  TResult maybeWhen<TResult extends Object?>(
+    TResult Function()? $default, {
+    TResult Function()? processing,
+    TResult Function(EUserData user)? done,
+    TResult Function()? storingInfo,
+    TResult Function(EUserData userData)? storageDone,
+    TResult Function(String? message)? error,
+    required TResult orElse(),
+  }) {
+    if (storingInfo != null) {
+      return storingInfo();
+    }
+    return orElse();
+  }
+
+  @override
+  @optionalTypeArgs
+  TResult map<TResult extends Object?>(
+    TResult Function(EmailAuthIdle value) $default, {
+    required TResult Function(EmailAuthProcessing value) processing,
+    required TResult Function(EmailAuthDone value) done,
+    required TResult Function(UserStorageProcessing value) storingInfo,
+    required TResult Function(UserStorageDone value) storageDone,
+    required TResult Function(EmailAuthError value) error,
+  }) {
+    return storingInfo(this);
+  }
+
+  @override
+  @optionalTypeArgs
+  TResult? mapOrNull<TResult extends Object?>(
+    TResult Function(EmailAuthIdle value)? $default, {
+    TResult Function(EmailAuthProcessing value)? processing,
+    TResult Function(EmailAuthDone value)? done,
+    TResult Function(UserStorageProcessing value)? storingInfo,
+    TResult Function(UserStorageDone value)? storageDone,
+    TResult Function(EmailAuthError value)? error,
+  }) {
+    return storingInfo?.call(this);
+  }
+
+  @override
+  @optionalTypeArgs
+  TResult maybeMap<TResult extends Object?>(
+    TResult Function(EmailAuthIdle value)? $default, {
+    TResult Function(EmailAuthProcessing value)? processing,
+    TResult Function(EmailAuthDone value)? done,
+    TResult Function(UserStorageProcessing value)? storingInfo,
+    TResult Function(UserStorageDone value)? storageDone,
+    TResult Function(EmailAuthError value)? error,
+    required TResult orElse(),
+  }) {
+    if (storingInfo != null) {
+      return storingInfo(this);
+    }
+    return orElse();
+  }
+}
+
+abstract class UserStorageProcessing implements EmailAuthState {
+  const factory UserStorageProcessing() = _$UserStorageProcessing;
+}
+
+/// @nodoc
+abstract class $UserStorageDoneCopyWith<$Res> {
+  factory $UserStorageDoneCopyWith(
+          UserStorageDone value, $Res Function(UserStorageDone) then) =
+      _$UserStorageDoneCopyWithImpl<$Res>;
+  $Res call({EUserData userData});
+}
+
+/// @nodoc
+class _$UserStorageDoneCopyWithImpl<$Res>
+    extends _$EmailAuthStateCopyWithImpl<$Res>
+    implements $UserStorageDoneCopyWith<$Res> {
+  _$UserStorageDoneCopyWithImpl(
+      UserStorageDone _value, $Res Function(UserStorageDone) _then)
+      : super(_value, (v) => _then(v as UserStorageDone));
+
+  @override
+  UserStorageDone get _value => super._value as UserStorageDone;
+
+  @override
+  $Res call({
+    Object? userData = freezed,
+  }) {
+    return _then(UserStorageDone(
+      userData == freezed
+          ? _value.userData
+          : userData // ignore: cast_nullable_to_non_nullable
+              as EUserData,
+    ));
+  }
+}
+
+/// @nodoc
+
+class _$UserStorageDone implements UserStorageDone {
+  const _$UserStorageDone(this.userData);
+
+  @override
+  final EUserData userData;
+
+  @override
+  String toString() {
+    return 'EmailAuthState.storageDone(userData: $userData)';
+  }
+
+  @override
+  bool operator ==(dynamic other) {
+    return identical(this, other) ||
+        (other.runtimeType == runtimeType &&
+            other is UserStorageDone &&
+            const DeepCollectionEquality().equals(other.userData, userData));
+  }
+
+  @override
+  int get hashCode =>
+      Object.hash(runtimeType, const DeepCollectionEquality().hash(userData));
+
+  @JsonKey(ignore: true)
+  @override
+  $UserStorageDoneCopyWith<UserStorageDone> get copyWith =>
+      _$UserStorageDoneCopyWithImpl<UserStorageDone>(this, _$identity);
+
+  @override
+  @optionalTypeArgs
+  TResult when<TResult extends Object?>(
+    TResult Function() $default, {
+    required TResult Function() processing,
+    required TResult Function(EUserData user) done,
+    required TResult Function() storingInfo,
+    required TResult Function(EUserData userData) storageDone,
+    required TResult Function(String? message) error,
+  }) {
+    return storageDone(userData);
+  }
+
+  @override
+  @optionalTypeArgs
+  TResult? whenOrNull<TResult extends Object?>(
+    TResult Function()? $default, {
+    TResult Function()? processing,
+    TResult Function(EUserData user)? done,
+    TResult Function()? storingInfo,
+    TResult Function(EUserData userData)? storageDone,
+    TResult Function(String? message)? error,
+  }) {
+    return storageDone?.call(userData);
+  }
+
+  @override
+  @optionalTypeArgs
+  TResult maybeWhen<TResult extends Object?>(
+    TResult Function()? $default, {
+    TResult Function()? processing,
+    TResult Function(EUserData user)? done,
+    TResult Function()? storingInfo,
+    TResult Function(EUserData userData)? storageDone,
+    TResult Function(String? message)? error,
+    required TResult orElse(),
+  }) {
+    if (storageDone != null) {
+      return storageDone(userData);
+    }
+    return orElse();
+  }
+
+  @override
+  @optionalTypeArgs
+  TResult map<TResult extends Object?>(
+    TResult Function(EmailAuthIdle value) $default, {
+    required TResult Function(EmailAuthProcessing value) processing,
+    required TResult Function(EmailAuthDone value) done,
+    required TResult Function(UserStorageProcessing value) storingInfo,
+    required TResult Function(UserStorageDone value) storageDone,
+    required TResult Function(EmailAuthError value) error,
+  }) {
+    return storageDone(this);
+  }
+
+  @override
+  @optionalTypeArgs
+  TResult? mapOrNull<TResult extends Object?>(
+    TResult Function(EmailAuthIdle value)? $default, {
+    TResult Function(EmailAuthProcessing value)? processing,
+    TResult Function(EmailAuthDone value)? done,
+    TResult Function(UserStorageProcessing value)? storingInfo,
+    TResult Function(UserStorageDone value)? storageDone,
+    TResult Function(EmailAuthError value)? error,
+  }) {
+    return storageDone?.call(this);
+  }
+
+  @override
+  @optionalTypeArgs
+  TResult maybeMap<TResult extends Object?>(
+    TResult Function(EmailAuthIdle value)? $default, {
+    TResult Function(EmailAuthProcessing value)? processing,
+    TResult Function(EmailAuthDone value)? done,
+    TResult Function(UserStorageProcessing value)? storingInfo,
+    TResult Function(UserStorageDone value)? storageDone,
+    TResult Function(EmailAuthError value)? error,
+    required TResult orElse(),
+  }) {
+    if (storageDone != null) {
+      return storageDone(this);
+    }
+    return orElse();
+  }
+}
+
+abstract class UserStorageDone implements EmailAuthState {
+  const factory UserStorageDone(EUserData userData) = _$UserStorageDone;
+
+  EUserData get userData;
+  @JsonKey(ignore: true)
+  $UserStorageDoneCopyWith<UserStorageDone> get copyWith =>
+      throw _privateConstructorUsedError;
+}
+
+/// @nodoc
+abstract class $EmailAuthErrorCopyWith<$Res> {
+  factory $EmailAuthErrorCopyWith(
+          EmailAuthError value, $Res Function(EmailAuthError) then) =
+      _$EmailAuthErrorCopyWithImpl<$Res>;
+  $Res call({String? message});
+}
+
+/// @nodoc
+class _$EmailAuthErrorCopyWithImpl<$Res>
+    extends _$EmailAuthStateCopyWithImpl<$Res>
+    implements $EmailAuthErrorCopyWith<$Res> {
+  _$EmailAuthErrorCopyWithImpl(
+      EmailAuthError _value, $Res Function(EmailAuthError) _then)
+      : super(_value, (v) => _then(v as EmailAuthError));
+
+  @override
+  EmailAuthError get _value => super._value as EmailAuthError;
+
+  @override
+  $Res call({
+    Object? message = freezed,
+  }) {
+    return _then(EmailAuthError(
+      message: message == freezed
+          ? _value.message
+          : message // ignore: cast_nullable_to_non_nullable
+              as String?,
+    ));
+  }
+}
+
+/// @nodoc
+
+class _$EmailAuthError implements EmailAuthError {
+  const _$EmailAuthError({this.message});
+
+  @override
+  final String? message;
+
+  @override
+  String toString() {
+    return 'EmailAuthState.error(message: $message)';
+  }
+
+  @override
+  bool operator ==(dynamic other) {
+    return identical(this, other) ||
+        (other.runtimeType == runtimeType &&
+            other is EmailAuthError &&
+            const DeepCollectionEquality().equals(other.message, message));
+  }
+
+  @override
+  int get hashCode =>
+      Object.hash(runtimeType, const DeepCollectionEquality().hash(message));
+
+  @JsonKey(ignore: true)
+  @override
+  $EmailAuthErrorCopyWith<EmailAuthError> get copyWith =>
+      _$EmailAuthErrorCopyWithImpl<EmailAuthError>(this, _$identity);
+
+  @override
+  @optionalTypeArgs
+  TResult when<TResult extends Object?>(
+    TResult Function() $default, {
+    required TResult Function() processing,
+    required TResult Function(EUserData user) done,
+    required TResult Function() storingInfo,
+    required TResult Function(EUserData userData) storageDone,
+    required TResult Function(String? message) error,
+  }) {
+    return error(message);
+  }
+
+  @override
+  @optionalTypeArgs
+  TResult? whenOrNull<TResult extends Object?>(
+    TResult Function()? $default, {
+    TResult Function()? processing,
+    TResult Function(EUserData user)? done,
+    TResult Function()? storingInfo,
+    TResult Function(EUserData userData)? storageDone,
+    TResult Function(String? message)? error,
+  }) {
+    return error?.call(message);
+  }
+
+  @override
+  @optionalTypeArgs
+  TResult maybeWhen<TResult extends Object?>(
+    TResult Function()? $default, {
+    TResult Function()? processing,
+    TResult Function(EUserData user)? done,
+    TResult Function()? storingInfo,
+    TResult Function(EUserData userData)? storageDone,
+    TResult Function(String? message)? error,
+    required TResult orElse(),
+  }) {
+    if (error != null) {
+      return error(message);
+    }
+    return orElse();
+  }
+
+  @override
+  @optionalTypeArgs
+  TResult map<TResult extends Object?>(
+    TResult Function(EmailAuthIdle value) $default, {
+    required TResult Function(EmailAuthProcessing value) processing,
+    required TResult Function(EmailAuthDone value) done,
+    required TResult Function(UserStorageProcessing value) storingInfo,
+    required TResult Function(UserStorageDone value) storageDone,
+    required TResult Function(EmailAuthError value) error,
+  }) {
+    return error(this);
+  }
+
+  @override
+  @optionalTypeArgs
+  TResult? mapOrNull<TResult extends Object?>(
+    TResult Function(EmailAuthIdle value)? $default, {
+    TResult Function(EmailAuthProcessing value)? processing,
+    TResult Function(EmailAuthDone value)? done,
+    TResult Function(UserStorageProcessing value)? storingInfo,
+    TResult Function(UserStorageDone value)? storageDone,
+    TResult Function(EmailAuthError value)? error,
+  }) {
+    return error?.call(this);
+  }
+
+  @override
+  @optionalTypeArgs
+  TResult maybeMap<TResult extends Object?>(
+    TResult Function(EmailAuthIdle value)? $default, {
+    TResult Function(EmailAuthProcessing value)? processing,
+    TResult Function(EmailAuthDone value)? done,
+    TResult Function(UserStorageProcessing value)? storingInfo,
+    TResult Function(UserStorageDone value)? storageDone,
+    TResult Function(EmailAuthError value)? error,
+    required TResult orElse(),
+  }) {
+    if (error != null) {
+      return error(this);
+    }
+    return orElse();
+  }
+}
+
+abstract class EmailAuthError implements EmailAuthState {
+  const factory EmailAuthError({String? message}) = _$EmailAuthError;
+
+  String? get message;
+  @JsonKey(ignore: true)
+  $EmailAuthErrorCopyWith<EmailAuthError> get copyWith =>
+      throw _privateConstructorUsedError;
+}

lib/application/states/image_splitter_state.dart

@@ -0,0 +1,17 @@
+import 'package:flutter/material.dart';
+import 'package:freezed_annotation/freezed_annotation.dart';
+import 'package:palette_generator/palette_generator.dart';
+
+part 'image_splitter_state.freezed.dart';
+
+@freezed
+class ImageSplitterState with _$ImageSplitterState {
+  const factory ImageSplitterState() = ImageSplitterIdle;
+
+  const factory ImageSplitterState.generating() = ImageSplitterGenerating;
+
+  const factory ImageSplitterState.complete(Image image, List<Image> images, PaletteGenerator palette) =
+      ImageSplitterComplete;
+
+  const factory ImageSplitterState.error({String? message}) = ImageSplitterError;
+}

lib/application/states/image_splitter_state.freezed.dart

@@ -0,0 +1,687 @@
+// coverage:ignore-file
+// GENERATED CODE - DO NOT MODIFY BY HAND
+// ignore_for_file: type=lint
+// ignore_for_file: unused_element, deprecated_member_use, deprecated_member_use_from_same_package, use_function_type_syntax_for_parameters, unnecessary_const, avoid_init_to_null, invalid_override_different_default_values_named, prefer_expression_function_bodies, annotate_overrides, invalid_annotation_target
+
+part of 'image_splitter_state.dart';
+
+// **************************************************************************
+// FreezedGenerator
+// **************************************************************************
+
+T _$identity<T>(T value) => value;
+
+final _privateConstructorUsedError = UnsupportedError(
+    'It seems like you constructed your class using `MyClass._()`. This constructor is only meant to be used by freezed and you are not supposed to need it nor use it.\nPlease check the documentation here for more informations: https://github.com/rrousselGit/freezed#custom-getters-and-methods');
+
+/// @nodoc
+class _$ImageSplitterStateTearOff {
+  const _$ImageSplitterStateTearOff();
+
+  ImageSplitterIdle call() {
+    return const ImageSplitterIdle();
+  }
+
+  ImageSplitterGenerating generating() {
+    return const ImageSplitterGenerating();
+  }
+
+  ImageSplitterComplete complete(
+      Image image, List<Image> images, PaletteGenerator palette) {
+    return ImageSplitterComplete(
+      image,
+      images,
+      palette,
+    );
+  }
+
+  ImageSplitterError error({String? message}) {
+    return ImageSplitterError(
+      message: message,
+    );
+  }
+}
+
+/// @nodoc
+const $ImageSplitterState = _$ImageSplitterStateTearOff();
+
+/// @nodoc
+mixin _$ImageSplitterState {
+  @optionalTypeArgs
+  TResult when<TResult extends Object?>(
+    TResult Function() $default, {
+    required TResult Function() generating,
+    required TResult Function(
+            Image image, List<Image> images, PaletteGenerator palette)
+        complete,
+    required TResult Function(String? message) error,
+  }) =>
+      throw _privateConstructorUsedError;
+  @optionalTypeArgs
+  TResult? whenOrNull<TResult extends Object?>(
+    TResult Function()? $default, {
+    TResult Function()? generating,
+    TResult Function(Image image, List<Image> images, PaletteGenerator palette)?
+        complete,
+    TResult Function(String? message)? error,
+  }) =>
+      throw _privateConstructorUsedError;
+  @optionalTypeArgs
+  TResult maybeWhen<TResult extends Object?>(
+    TResult Function()? $default, {
+    TResult Function()? generating,
+    TResult Function(Image image, List<Image> images, PaletteGenerator palette)?
+        complete,
+    TResult Function(String? message)? error,
+    required TResult orElse(),
+  }) =>
+      throw _privateConstructorUsedError;
+  @optionalTypeArgs
+  TResult map<TResult extends Object?>(
+    TResult Function(ImageSplitterIdle value) $default, {
+    required TResult Function(ImageSplitterGenerating value) generating,
+    required TResult Function(ImageSplitterComplete value) complete,
+    required TResult Function(ImageSplitterError value) error,
+  }) =>
+      throw _privateConstructorUsedError;
+  @optionalTypeArgs
+  TResult? mapOrNull<TResult extends Object?>(
+    TResult Function(ImageSplitterIdle value)? $default, {
+    TResult Function(ImageSplitterGenerating value)? generating,
+    TResult Function(ImageSplitterComplete value)? complete,
+    TResult Function(ImageSplitterError value)? error,
+  }) =>
+      throw _privateConstructorUsedError;
+  @optionalTypeArgs
+  TResult maybeMap<TResult extends Object?>(
+    TResult Function(ImageSplitterIdle value)? $default, {
+    TResult Function(ImageSplitterGenerating value)? generating,
+    TResult Function(ImageSplitterComplete value)? complete,
+    TResult Function(ImageSplitterError value)? error,
+    required TResult orElse(),
+  }) =>
+      throw _privateConstructorUsedError;
+}
+
+/// @nodoc
+abstract class $ImageSplitterStateCopyWith<$Res> {
+  factory $ImageSplitterStateCopyWith(
+          ImageSplitterState value, $Res Function(ImageSplitterState) then) =
+      _$ImageSplitterStateCopyWithImpl<$Res>;
+}
+
+/// @nodoc
+class _$ImageSplitterStateCopyWithImpl<$Res>
+    implements $ImageSplitterStateCopyWith<$Res> {
+  _$ImageSplitterStateCopyWithImpl(this._value, this._then);
+
+  final ImageSplitterState _value;
+  // ignore: unused_field
+  final $Res Function(ImageSplitterState) _then;
+}
+
+/// @nodoc
+abstract class $ImageSplitterIdleCopyWith<$Res> {
+  factory $ImageSplitterIdleCopyWith(
+          ImageSplitterIdle value, $Res Function(ImageSplitterIdle) then) =
+      _$ImageSplitterIdleCopyWithImpl<$Res>;
+}
+
+/// @nodoc
+class _$ImageSplitterIdleCopyWithImpl<$Res>
+    extends _$ImageSplitterStateCopyWithImpl<$Res>
+    implements $ImageSplitterIdleCopyWith<$Res> {
+  _$ImageSplitterIdleCopyWithImpl(
+      ImageSplitterIdle _value, $Res Function(ImageSplitterIdle) _then)
+      : super(_value, (v) => _then(v as ImageSplitterIdle));
+
+  @override
+  ImageSplitterIdle get _value => super._value as ImageSplitterIdle;
+}
+
+/// @nodoc
+
+class _$ImageSplitterIdle implements ImageSplitterIdle {
+  const _$ImageSplitterIdle();
+
+  @override
+  String toString() {
+    return 'ImageSplitterState()';
+  }
+
+  @override
+  bool operator ==(dynamic other) {
+    return identical(this, other) ||
+        (other.runtimeType == runtimeType && other is ImageSplitterIdle);
+  }
+
+  @override
+  int get hashCode => runtimeType.hashCode;
+
+  @override
+  @optionalTypeArgs
+  TResult when<TResult extends Object?>(
+    TResult Function() $default, {
+    required TResult Function() generating,
+    required TResult Function(
+            Image image, List<Image> images, PaletteGenerator palette)
+        complete,
+    required TResult Function(String? message) error,
+  }) {
+    return $default();
+  }
+
+  @override
+  @optionalTypeArgs
+  TResult? whenOrNull<TResult extends Object?>(
+    TResult Function()? $default, {
+    TResult Function()? generating,
+    TResult Function(Image image, List<Image> images, PaletteGenerator palette)?
+        complete,
+    TResult Function(String? message)? error,
+  }) {
+    return $default?.call();
+  }
+
+  @override
+  @optionalTypeArgs
+  TResult maybeWhen<TResult extends Object?>(
+    TResult Function()? $default, {
+    TResult Function()? generating,
+    TResult Function(Image image, List<Image> images, PaletteGenerator palette)?
+        complete,
+    TResult Function(String? message)? error,
+    required TResult orElse(),
+  }) {
+    if ($default != null) {
+      return $default();
+    }
+    return orElse();
+  }
+
+  @override
+  @optionalTypeArgs
+  TResult map<TResult extends Object?>(
+    TResult Function(ImageSplitterIdle value) $default, {
+    required TResult Function(ImageSplitterGenerating value) generating,
+    required TResult Function(ImageSplitterComplete value) complete,
+    required TResult Function(ImageSplitterError value) error,
+  }) {
+    return $default(this);
+  }
+
+  @override
+  @optionalTypeArgs
+  TResult? mapOrNull<TResult extends Object?>(
+    TResult Function(ImageSplitterIdle value)? $default, {
+    TResult Function(ImageSplitterGenerating value)? generating,
+    TResult Function(ImageSplitterComplete value)? complete,
+    TResult Function(ImageSplitterError value)? error,
+  }) {
+    return $default?.call(this);
+  }
+
+  @override
+  @optionalTypeArgs
+  TResult maybeMap<TResult extends Object?>(
+    TResult Function(ImageSplitterIdle value)? $default, {
+    TResult Function(ImageSplitterGenerating value)? generating,
+    TResult Function(ImageSplitterComplete value)? complete,
+    TResult Function(ImageSplitterError value)? error,
+    required TResult orElse(),
+  }) {
+    if ($default != null) {
+      return $default(this);
+    }
+    return orElse();
+  }
+}
+
+abstract class ImageSplitterIdle implements ImageSplitterState {
+  const factory ImageSplitterIdle() = _$ImageSplitterIdle;
+}
+
+/// @nodoc
+abstract class $ImageSplitterGeneratingCopyWith<$Res> {
+  factory $ImageSplitterGeneratingCopyWith(ImageSplitterGenerating value,
+          $Res Function(ImageSplitterGenerating) then) =
+      _$ImageSplitterGeneratingCopyWithImpl<$Res>;
+}
+
+/// @nodoc
+class _$ImageSplitterGeneratingCopyWithImpl<$Res>
+    extends _$ImageSplitterStateCopyWithImpl<$Res>
+    implements $ImageSplitterGeneratingCopyWith<$Res> {
+  _$ImageSplitterGeneratingCopyWithImpl(ImageSplitterGenerating _value,
+      $Res Function(ImageSplitterGenerating) _then)
+      : super(_value, (v) => _then(v as ImageSplitterGenerating));
+
+  @override
+  ImageSplitterGenerating get _value => super._value as ImageSplitterGenerating;
+}
+
+/// @nodoc
+
+class _$ImageSplitterGenerating implements ImageSplitterGenerating {
+  const _$ImageSplitterGenerating();
+
+  @override
+  String toString() {
+    return 'ImageSplitterState.generating()';
+  }
+
+  @override
+  bool operator ==(dynamic other) {
+    return identical(this, other) ||
+        (other.runtimeType == runtimeType && other is ImageSplitterGenerating);
+  }
+
+  @override
+  int get hashCode => runtimeType.hashCode;
+
+  @override
+  @optionalTypeArgs
+  TResult when<TResult extends Object?>(
+    TResult Function() $default, {
+    required TResult Function() generating,
+    required TResult Function(
+            Image image, List<Image> images, PaletteGenerator palette)
+        complete,
+    required TResult Function(String? message) error,
+  }) {
+    return generating();
+  }
+
+  @override
+  @optionalTypeArgs
+  TResult? whenOrNull<TResult extends Object?>(
+    TResult Function()? $default, {
+    TResult Function()? generating,
+    TResult Function(Image image, List<Image> images, PaletteGenerator palette)?
+        complete,
+    TResult Function(String? message)? error,
+  }) {
+    return generating?.call();
+  }
+
+  @override
+  @optionalTypeArgs
+  TResult maybeWhen<TResult extends Object?>(
+    TResult Function()? $default, {
+    TResult Function()? generating,
+    TResult Function(Image image, List<Image> images, PaletteGenerator palette)?
+        complete,
+    TResult Function(String? message)? error,
+    required TResult orElse(),
+  }) {
+    if (generating != null) {
+      return generating();
+    }
+    return orElse();
+  }
+
+  @override
+  @optionalTypeArgs
+  TResult map<TResult extends Object?>(
+    TResult Function(ImageSplitterIdle value) $default, {
+    required TResult Function(ImageSplitterGenerating value) generating,
+    required TResult Function(ImageSplitterComplete value) complete,
+    required TResult Function(ImageSplitterError value) error,
+  }) {
+    return generating(this);
+  }
+
+  @override
+  @optionalTypeArgs
+  TResult? mapOrNull<TResult extends Object?>(
+    TResult Function(ImageSplitterIdle value)? $default, {
+    TResult Function(ImageSplitterGenerating value)? generating,
+    TResult Function(ImageSplitterComplete value)? complete,
+    TResult Function(ImageSplitterError value)? error,
+  }) {
+    return generating?.call(this);
+  }
+
+  @override
+  @optionalTypeArgs
+  TResult maybeMap<TResult extends Object?>(
+    TResult Function(ImageSplitterIdle value)? $default, {
+    TResult Function(ImageSplitterGenerating value)? generating,
+    TResult Function(ImageSplitterComplete value)? complete,
+    TResult Function(ImageSplitterError value)? error,
+    required TResult orElse(),
+  }) {
+    if (generating != null) {
+      return generating(this);
+    }
+    return orElse();
+  }
+}
+
+abstract class ImageSplitterGenerating implements ImageSplitterState {
+  const factory ImageSplitterGenerating() = _$ImageSplitterGenerating;
+}
+
+/// @nodoc
+abstract class $ImageSplitterCompleteCopyWith<$Res> {
+  factory $ImageSplitterCompleteCopyWith(ImageSplitterComplete value,
+          $Res Function(ImageSplitterComplete) then) =
+      _$ImageSplitterCompleteCopyWithImpl<$Res>;
+  $Res call({Image image, List<Image> images, PaletteGenerator palette});
+}
+
+/// @nodoc
+class _$ImageSplitterCompleteCopyWithImpl<$Res>
+    extends _$ImageSplitterStateCopyWithImpl<$Res>
+    implements $ImageSplitterCompleteCopyWith<$Res> {
+  _$ImageSplitterCompleteCopyWithImpl(
+      ImageSplitterComplete _value, $Res Function(ImageSplitterComplete) _then)
+      : super(_value, (v) => _then(v as ImageSplitterComplete));
+
+  @override
+  ImageSplitterComplete get _value => super._value as ImageSplitterComplete;
+
+  @override
+  $Res call({
+    Object? image = freezed,
+    Object? images = freezed,
+    Object? palette = freezed,
+  }) {
+    return _then(ImageSplitterComplete(
+      image == freezed
+          ? _value.image
+          : image // ignore: cast_nullable_to_non_nullable
+              as Image,
+      images == freezed
+          ? _value.images
+          : images // ignore: cast_nullable_to_non_nullable
+              as List<Image>,
+      palette == freezed
+          ? _value.palette
+          : palette // ignore: cast_nullable_to_non_nullable
+              as PaletteGenerator,
+    ));
+  }
+}
+
+/// @nodoc
+
+class _$ImageSplitterComplete implements ImageSplitterComplete {
+  const _$ImageSplitterComplete(this.image, this.images, this.palette);
+
+  @override
+  final Image image;
+  @override
+  final List<Image> images;
+  @override
+  final PaletteGenerator palette;
+
+  @override
+  String toString() {
+    return 'ImageSplitterState.complete(image: $image, images: $images, palette: $palette)';
+  }
+
+  @override
+  bool operator ==(dynamic other) {
+    return identical(this, other) ||
+        (other.runtimeType == runtimeType &&
+            other is ImageSplitterComplete &&
+            const DeepCollectionEquality().equals(other.image, image) &&
+            const DeepCollectionEquality().equals(other.images, images) &&
+            const DeepCollectionEquality().equals(other.palette, palette));
+  }
+
+  @override
+  int get hashCode => Object.hash(
+      runtimeType,
+      const DeepCollectionEquality().hash(image),
+      const DeepCollectionEquality().hash(images),
+      const DeepCollectionEquality().hash(palette));
+
+  @JsonKey(ignore: true)
+  @override
+  $ImageSplitterCompleteCopyWith<ImageSplitterComplete> get copyWith =>
+      _$ImageSplitterCompleteCopyWithImpl<ImageSplitterComplete>(
+          this, _$identity);
+
+  @override
+  @optionalTypeArgs
+  TResult when<TResult extends Object?>(
+    TResult Function() $default, {
+    required TResult Function() generating,
+    required TResult Function(
+            Image image, List<Image> images, PaletteGenerator palette)
+        complete,
+    required TResult Function(String? message) error,
+  }) {
+    return complete(image, images, palette);
+  }
+
+  @override
+  @optionalTypeArgs
+  TResult? whenOrNull<TResult extends Object?>(
+    TResult Function()? $default, {
+    TResult Function()? generating,
+    TResult Function(Image image, List<Image> images, PaletteGenerator palette)?
+        complete,
+    TResult Function(String? message)? error,
+  }) {
+    return complete?.call(image, images, palette);
+  }
+
+  @override
+  @optionalTypeArgs
+  TResult maybeWhen<TResult extends Object?>(
+    TResult Function()? $default, {
+    TResult Function()? generating,
+    TResult Function(Image image, List<Image> images, PaletteGenerator palette)?
+        complete,
+    TResult Function(String? message)? error,
+    required TResult orElse(),
+  }) {
+    if (complete != null) {
+      return complete(image, images, palette);
+    }
+    return orElse();
+  }
+
+  @override
+  @optionalTypeArgs
+  TResult map<TResult extends Object?>(
+    TResult Function(ImageSplitterIdle value) $default, {
+    required TResult Function(ImageSplitterGenerating value) generating,
+    required TResult Function(ImageSplitterComplete value) complete,
+    required TResult Function(ImageSplitterError value) error,
+  }) {
+    return complete(this);
+  }
+
+  @override
+  @optionalTypeArgs
+  TResult? mapOrNull<TResult extends Object?>(
+    TResult Function(ImageSplitterIdle value)? $default, {
+    TResult Function(ImageSplitterGenerating value)? generating,
+    TResult Function(ImageSplitterComplete value)? complete,
+    TResult Function(ImageSplitterError value)? error,
+  }) {
+    return complete?.call(this);
+  }
+
+  @override
+  @optionalTypeArgs
+  TResult maybeMap<TResult extends Object?>(
+    TResult Function(ImageSplitterIdle value)? $default, {
+    TResult Function(ImageSplitterGenerating value)? generating,
+    TResult Function(ImageSplitterComplete value)? complete,
+    TResult Function(ImageSplitterError value)? error,
+    required TResult orElse(),
+  }) {
+    if (complete != null) {
+      return complete(this);
+    }
+    return orElse();
+  }
+}
+
+abstract class ImageSplitterComplete implements ImageSplitterState {
+  const factory ImageSplitterComplete(
+          Image image, List<Image> images, PaletteGenerator palette) =
+      _$ImageSplitterComplete;
+
+  Image get image;
+  List<Image> get images;
+  PaletteGenerator get palette;
+  @JsonKey(ignore: true)
+  $ImageSplitterCompleteCopyWith<ImageSplitterComplete> get copyWith =>
+      throw _privateConstructorUsedError;
+}
+
+/// @nodoc
+abstract class $ImageSplitterErrorCopyWith<$Res> {
+  factory $ImageSplitterErrorCopyWith(
+          ImageSplitterError value, $Res Function(ImageSplitterError) then) =
+      _$ImageSplitterErrorCopyWithImpl<$Res>;
+  $Res call({String? message});
+}
+
+/// @nodoc
+class _$ImageSplitterErrorCopyWithImpl<$Res>
+    extends _$ImageSplitterStateCopyWithImpl<$Res>
+    implements $ImageSplitterErrorCopyWith<$Res> {
+  _$ImageSplitterErrorCopyWithImpl(
+      ImageSplitterError _value, $Res Function(ImageSplitterError) _then)
+      : super(_value, (v) => _then(v as ImageSplitterError));
+
+  @override
+  ImageSplitterError get _value => super._value as ImageSplitterError;
+
+  @override
+  $Res call({
+    Object? message = freezed,
+  }) {
+    return _then(ImageSplitterError(
+      message: message == freezed
+          ? _value.message
+          : message // ignore: cast_nullable_to_non_nullable
+              as String?,
+    ));
+  }
+}
+
+/// @nodoc
+
+class _$ImageSplitterError implements ImageSplitterError {
+  const _$ImageSplitterError({this.message});
+
+  @override
+  final String? message;
+
+  @override
+  String toString() {
+    return 'ImageSplitterState.error(message: $message)';
+  }
+
+  @override
+  bool operator ==(dynamic other) {
+    return identical(this, other) ||
+        (other.runtimeType == runtimeType &&
+            other is ImageSplitterError &&
+            const DeepCollectionEquality().equals(other.message, message));
+  }
+
+  @override
+  int get hashCode =>
+      Object.hash(runtimeType, const DeepCollectionEquality().hash(message));
+
+  @JsonKey(ignore: true)
+  @override
+  $ImageSplitterErrorCopyWith<ImageSplitterError> get copyWith =>
+      _$ImageSplitterErrorCopyWithImpl<ImageSplitterError>(this, _$identity);
+
+  @override
+  @optionalTypeArgs
+  TResult when<TResult extends Object?>(
+    TResult Function() $default, {
+    required TResult Function() generating,
+    required TResult Function(
+            Image image, List<Image> images, PaletteGenerator palette)
+        complete,
+    required TResult Function(String? message) error,
+  }) {
+    return error(message);
+  }
+
+  @override
+  @optionalTypeArgs
+  TResult? whenOrNull<TResult extends Object?>(
+    TResult Function()? $default, {
+    TResult Function()? generating,
+    TResult Function(Image image, List<Image> images, PaletteGenerator palette)?
+        complete,
+    TResult Function(String? message)? error,
+  }) {
+    return error?.call(message);
+  }
+
+  @override
+  @optionalTypeArgs
+  TResult maybeWhen<TResult extends Object?>(
+    TResult Function()? $default, {
+    TResult Function()? generating,
+    TResult Function(Image image, List<Image> images, PaletteGenerator palette)?
+        complete,
+    TResult Function(String? message)? error,
+    required TResult orElse(),
+  }) {
+    if (error != null) {
+      return error(message);
+    }
+    return orElse();
+  }
+
+  @override
+  @optionalTypeArgs
+  TResult map<TResult extends Object?>(
+    TResult Function(ImageSplitterIdle value) $default, {
+    required TResult Function(ImageSplitterGenerating value) generating,
+    required TResult Function(ImageSplitterComplete value) complete,
+    required TResult Function(ImageSplitterError value) error,
+  }) {
+    return error(this);
+  }
+
+  @override
+  @optionalTypeArgs
+  TResult? mapOrNull<TResult extends Object?>(
+    TResult Function(ImageSplitterIdle value)? $default, {
+    TResult Function(ImageSplitterGenerating value)? generating,
+    TResult Function(ImageSplitterComplete value)? complete,
+    TResult Function(ImageSplitterError value)? error,
+  }) {
+    return error?.call(this);
+  }
+
+  @override
+  @optionalTypeArgs
+  TResult maybeMap<TResult extends Object?>(
+    TResult Function(ImageSplitterIdle value)? $default, {
+    TResult Function(ImageSplitterGenerating value)? generating,
+    TResult Function(ImageSplitterComplete value)? complete,
+    TResult Function(ImageSplitterError value)? error,
+    required TResult orElse(),
+  }) {
+    if (error != null) {
+      return error(this);
+    }
+    return orElse();
+  }
+}
+
+abstract class ImageSplitterError implements ImageSplitterState {
+  const factory ImageSplitterError({String? message}) = _$ImageSplitterError;
+
+  String? get message;
+  @JsonKey(ignore: true)
+  $ImageSplitterErrorCopyWith<ImageSplitterError> get copyWith =>
+      throw _privateConstructorUsedError;
+}

lib/application/states/multi_puzzle_state.dart

@@ -0,0 +1,13 @@
+import 'package:freezed_annotation/freezed_annotation.dart';
+import 'package:my_flutter_puzzle/models/puzzle_data.dart';
+
+part 'multi_puzzle_state.freezed.dart';
+
+@freezed
+class MultiPuzzleState with _$MultiPuzzleState {
+  const factory MultiPuzzleState() = MultiPuzzleIdle;
+  const factory MultiPuzzleState.initializing() = MultiPuzzleInitializing;
+  const factory MultiPuzzleState.current(PuzzleData puzzleData) = MultiPuzzleCurrent;
+  const factory MultiPuzzleState.solved(PuzzleData puzzleData) = MultiPuzzleSolved;
+  const factory MultiPuzzleState.error({String? message}) = MultiPuzzleError;
+}

lib/application/states/multi_puzzle_state.freezed.dart

@@ -0,0 +1,831 @@
+// coverage:ignore-file
+// GENERATED CODE - DO NOT MODIFY BY HAND
+// ignore_for_file: type=lint
+// ignore_for_file: unused_element, deprecated_member_use, deprecated_member_use_from_same_package, use_function_type_syntax_for_parameters, unnecessary_const, avoid_init_to_null, invalid_override_different_default_values_named, prefer_expression_function_bodies, annotate_overrides, invalid_annotation_target
+
+part of 'multi_puzzle_state.dart';
+
+// **************************************************************************
+// FreezedGenerator
+// **************************************************************************
+
+T _$identity<T>(T value) => value;
+
+final _privateConstructorUsedError = UnsupportedError(
+    'It seems like you constructed your class using `MyClass._()`. This constructor is only meant to be used by freezed and you are not supposed to need it nor use it.\nPlease check the documentation here for more informations: https://github.com/rrousselGit/freezed#custom-getters-and-methods');
+
+/// @nodoc
+class _$MultiPuzzleStateTearOff {
+  const _$MultiPuzzleStateTearOff();
+
+  MultiPuzzleIdle call() {
+    return const MultiPuzzleIdle();
+  }
+
+  MultiPuzzleInitializing initializing() {
+    return const MultiPuzzleInitializing();
+  }
+
+  MultiPuzzleCurrent current(PuzzleData puzzleData) {
+    return MultiPuzzleCurrent(
+      puzzleData,
+    );
+  }
+
+  MultiPuzzleSolved solved(PuzzleData puzzleData) {
+    return MultiPuzzleSolved(
+      puzzleData,
+    );
+  }
+
+  MultiPuzzleError error({String? message}) {
+    return MultiPuzzleError(
+      message: message,
+    );
+  }
+}
+
+/// @nodoc
+const $MultiPuzzleState = _$MultiPuzzleStateTearOff();
+
+/// @nodoc
+mixin _$MultiPuzzleState {
+  @optionalTypeArgs
+  TResult when<TResult extends Object?>(
+    TResult Function() $default, {
+    required TResult Function() initializing,
+    required TResult Function(PuzzleData puzzleData) current,
+    required TResult Function(PuzzleData puzzleData) solved,
+    required TResult Function(String? message) error,
+  }) =>
+      throw _privateConstructorUsedError;
+  @optionalTypeArgs
+  TResult? whenOrNull<TResult extends Object?>(
+    TResult Function()? $default, {
+    TResult Function()? initializing,
+    TResult Function(PuzzleData puzzleData)? current,
+    TResult Function(PuzzleData puzzleData)? solved,
+    TResult Function(String? message)? error,
+  }) =>
+      throw _privateConstructorUsedError;
+  @optionalTypeArgs
+  TResult maybeWhen<TResult extends Object?>(
+    TResult Function()? $default, {
+    TResult Function()? initializing,
+    TResult Function(PuzzleData puzzleData)? current,
+    TResult Function(PuzzleData puzzleData)? solved,
+    TResult Function(String? message)? error,
+    required TResult orElse(),
+  }) =>
+      throw _privateConstructorUsedError;
+  @optionalTypeArgs
+  TResult map<TResult extends Object?>(
+    TResult Function(MultiPuzzleIdle value) $default, {
+    required TResult Function(MultiPuzzleInitializing value) initializing,
+    required TResult Function(MultiPuzzleCurrent value) current,
+    required TResult Function(MultiPuzzleSolved value) solved,
+    required TResult Function(MultiPuzzleError value) error,
+  }) =>
+      throw _privateConstructorUsedError;
+  @optionalTypeArgs
+  TResult? mapOrNull<TResult extends Object?>(
+    TResult Function(MultiPuzzleIdle value)? $default, {
+    TResult Function(MultiPuzzleInitializing value)? initializing,
+    TResult Function(MultiPuzzleCurrent value)? current,
+    TResult Function(MultiPuzzleSolved value)? solved,
+    TResult Function(MultiPuzzleError value)? error,
+  }) =>
+      throw _privateConstructorUsedError;
+  @optionalTypeArgs
+  TResult maybeMap<TResult extends Object?>(
+    TResult Function(MultiPuzzleIdle value)? $default, {
+    TResult Function(MultiPuzzleInitializing value)? initializing,
+    TResult Function(MultiPuzzleCurrent value)? current,
+    TResult Function(MultiPuzzleSolved value)? solved,
+    TResult Function(MultiPuzzleError value)? error,
+    required TResult orElse(),
+  }) =>
+      throw _privateConstructorUsedError;
+}
+
+/// @nodoc
+abstract class $MultiPuzzleStateCopyWith<$Res> {
+  factory $MultiPuzzleStateCopyWith(
+          MultiPuzzleState value, $Res Function(MultiPuzzleState) then) =
+      _$MultiPuzzleStateCopyWithImpl<$Res>;
+}
+
+/// @nodoc
+class _$MultiPuzzleStateCopyWithImpl<$Res>
+    implements $MultiPuzzleStateCopyWith<$Res> {
+  _$MultiPuzzleStateCopyWithImpl(this._value, this._then);
+
+  final MultiPuzzleState _value;
+  // ignore: unused_field
+  final $Res Function(MultiPuzzleState) _then;
+}
+
+/// @nodoc
+abstract class $MultiPuzzleIdleCopyWith<$Res> {
+  factory $MultiPuzzleIdleCopyWith(
+          MultiPuzzleIdle value, $Res Function(MultiPuzzleIdle) then) =
+      _$MultiPuzzleIdleCopyWithImpl<$Res>;
+}
+
+/// @nodoc
+class _$MultiPuzzleIdleCopyWithImpl<$Res>
+    extends _$MultiPuzzleStateCopyWithImpl<$Res>
+    implements $MultiPuzzleIdleCopyWith<$Res> {
+  _$MultiPuzzleIdleCopyWithImpl(
+      MultiPuzzleIdle _value, $Res Function(MultiPuzzleIdle) _then)
+      : super(_value, (v) => _then(v as MultiPuzzleIdle));
+
+  @override
+  MultiPuzzleIdle get _value => super._value as MultiPuzzleIdle;
+}
+
+/// @nodoc
+
+class _$MultiPuzzleIdle implements MultiPuzzleIdle {
+  const _$MultiPuzzleIdle();
+
+  @override
+  String toString() {
+    return 'MultiPuzzleState()';
+  }
+
+  @override
+  bool operator ==(dynamic other) {
+    return identical(this, other) ||
+        (other.runtimeType == runtimeType && other is MultiPuzzleIdle);
+  }
+
+  @override
+  int get hashCode => runtimeType.hashCode;
+
+  @override
+  @optionalTypeArgs
+  TResult when<TResult extends Object?>(
+    TResult Function() $default, {
+    required TResult Function() initializing,
+    required TResult Function(PuzzleData puzzleData) current,
+    required TResult Function(PuzzleData puzzleData) solved,
+    required TResult Function(String? message) error,
+  }) {
+    return $default();
+  }
+
+  @override
+  @optionalTypeArgs
+  TResult? whenOrNull<TResult extends Object?>(
+    TResult Function()? $default, {
+    TResult Function()? initializing,
+    TResult Function(PuzzleData puzzleData)? current,
+    TResult Function(PuzzleData puzzleData)? solved,
+    TResult Function(String? message)? error,
+  }) {
+    return $default?.call();
+  }
+
+  @override
+  @optionalTypeArgs
+  TResult maybeWhen<TResult extends Object?>(
+    TResult Function()? $default, {
+    TResult Function()? initializing,
+    TResult Function(PuzzleData puzzleData)? current,
+    TResult Function(PuzzleData puzzleData)? solved,
+    TResult Function(String? message)? error,
+    required TResult orElse(),
+  }) {
+    if ($default != null) {
+      return $default();
+    }
+    return orElse();
+  }
+
+  @override
+  @optionalTypeArgs
+  TResult map<TResult extends Object?>(
+    TResult Function(MultiPuzzleIdle value) $default, {
+    required TResult Function(MultiPuzzleInitializing value) initializing,
+    required TResult Function(MultiPuzzleCurrent value) current,
+    required TResult Function(MultiPuzzleSolved value) solved,
+    required TResult Function(MultiPuzzleError value) error,
+  }) {
+    return $default(this);
+  }
+
+  @override
+  @optionalTypeArgs
+  TResult? mapOrNull<TResult extends Object?>(
+    TResult Function(MultiPuzzleIdle value)? $default, {
+    TResult Function(MultiPuzzleInitializing value)? initializing,
+    TResult Function(MultiPuzzleCurrent value)? current,
+    TResult Function(MultiPuzzleSolved value)? solved,
+    TResult Function(MultiPuzzleError value)? error,
+  }) {
+    return $default?.call(this);
+  }
+
+  @override
+  @optionalTypeArgs
+  TResult maybeMap<TResult extends Object?>(
+    TResult Function(MultiPuzzleIdle value)? $default, {
+    TResult Function(MultiPuzzleInitializing value)? initializing,
+    TResult Function(MultiPuzzleCurrent value)? current,
+    TResult Function(MultiPuzzleSolved value)? solved,
+    TResult Function(MultiPuzzleError value)? error,
+    required TResult orElse(),
+  }) {
+    if ($default != null) {
+      return $default(this);
+    }
+    return orElse();
+  }
+}
+
+abstract class MultiPuzzleIdle implements MultiPuzzleState {
+  const factory MultiPuzzleIdle() = _$MultiPuzzleIdle;
+}
+
+/// @nodoc
+abstract class $MultiPuzzleInitializingCopyWith<$Res> {
+  factory $MultiPuzzleInitializingCopyWith(MultiPuzzleInitializing value,
+          $Res Function(MultiPuzzleInitializing) then) =
+      _$MultiPuzzleInitializingCopyWithImpl<$Res>;
+}
+
+/// @nodoc
+class _$MultiPuzzleInitializingCopyWithImpl<$Res>
+    extends _$MultiPuzzleStateCopyWithImpl<$Res>
+    implements $MultiPuzzleInitializingCopyWith<$Res> {
+  _$MultiPuzzleInitializingCopyWithImpl(MultiPuzzleInitializing _value,
+      $Res Function(MultiPuzzleInitializing) _then)
+      : super(_value, (v) => _then(v as MultiPuzzleInitializing));
+
+  @override
+  MultiPuzzleInitializing get _value => super._value as MultiPuzzleInitializing;
+}
+
+/// @nodoc
+
+class _$MultiPuzzleInitializing implements MultiPuzzleInitializing {
+  const _$MultiPuzzleInitializing();
+
+  @override
+  String toString() {
+    return 'MultiPuzzleState.initializing()';
+  }
+
+  @override
+  bool operator ==(dynamic other) {
+    return identical(this, other) ||
+        (other.runtimeType == runtimeType && other is MultiPuzzleInitializing);
+  }
+
+  @override
+  int get hashCode => runtimeType.hashCode;
+
+  @override
+  @optionalTypeArgs
+  TResult when<TResult extends Object?>(
+    TResult Function() $default, {
+    required TResult Function() initializing,
+    required TResult Function(PuzzleData puzzleData) current,
+    required TResult Function(PuzzleData puzzleData) solved,
+    required TResult Function(String? message) error,
+  }) {
+    return initializing();
+  }
+
+  @override
+  @optionalTypeArgs
+  TResult? whenOrNull<TResult extends Object?>(
+    TResult Function()? $default, {
+    TResult Function()? initializing,
+    TResult Function(PuzzleData puzzleData)? current,
+    TResult Function(PuzzleData puzzleData)? solved,
+    TResult Function(String? message)? error,
+  }) {
+    return initializing?.call();
+  }
+
+  @override
+  @optionalTypeArgs
+  TResult maybeWhen<TResult extends Object?>(
+    TResult Function()? $default, {
+    TResult Function()? initializing,
+    TResult Function(PuzzleData puzzleData)? current,
+    TResult Function(PuzzleData puzzleData)? solved,
+    TResult Function(String? message)? error,
+    required TResult orElse(),
+  }) {
+    if (initializing != null) {
+      return initializing();
+    }
+    return orElse();
+  }
+
+  @override
+  @optionalTypeArgs
+  TResult map<TResult extends Object?>(
+    TResult Function(MultiPuzzleIdle value) $default, {
+    required TResult Function(MultiPuzzleInitializing value) initializing,
+    required TResult Function(MultiPuzzleCurrent value) current,
+    required TResult Function(MultiPuzzleSolved value) solved,
+    required TResult Function(MultiPuzzleError value) error,
+  }) {
+    return initializing(this);
+  }
+
+  @override
+  @optionalTypeArgs
+  TResult? mapOrNull<TResult extends Object?>(
+    TResult Function(MultiPuzzleIdle value)? $default, {
+    TResult Function(MultiPuzzleInitializing value)? initializing,
+    TResult Function(MultiPuzzleCurrent value)? current,
+    TResult Function(MultiPuzzleSolved value)? solved,
+    TResult Function(MultiPuzzleError value)? error,
+  }) {
+    return initializing?.call(this);
+  }
+
+  @override
+  @optionalTypeArgs
+  TResult maybeMap<TResult extends Object?>(
+    TResult Function(MultiPuzzleIdle value)? $default, {
+    TResult Function(MultiPuzzleInitializing value)? initializing,
+    TResult Function(MultiPuzzleCurrent value)? current,
+    TResult Function(MultiPuzzleSolved value)? solved,
+    TResult Function(MultiPuzzleError value)? error,
+    required TResult orElse(),
+  }) {
+    if (initializing != null) {
+      return initializing(this);
+    }
+    return orElse();
+  }
+}
+
+abstract class MultiPuzzleInitializing implements MultiPuzzleState {
+  const factory MultiPuzzleInitializing() = _$MultiPuzzleInitializing;
+}
+
+/// @nodoc
+abstract class $MultiPuzzleCurrentCopyWith<$Res> {
+  factory $MultiPuzzleCurrentCopyWith(
+          MultiPuzzleCurrent value, $Res Function(MultiPuzzleCurrent) then) =
+      _$MultiPuzzleCurrentCopyWithImpl<$Res>;
+  $Res call({PuzzleData puzzleData});
+}
+
+/// @nodoc
+class _$MultiPuzzleCurrentCopyWithImpl<$Res>
+    extends _$MultiPuzzleStateCopyWithImpl<$Res>
+    implements $MultiPuzzleCurrentCopyWith<$Res> {
+  _$MultiPuzzleCurrentCopyWithImpl(
+      MultiPuzzleCurrent _value, $Res Function(MultiPuzzleCurrent) _then)
+      : super(_value, (v) => _then(v as MultiPuzzleCurrent));
+
+  @override
+  MultiPuzzleCurrent get _value => super._value as MultiPuzzleCurrent;
+
+  @override
+  $Res call({
+    Object? puzzleData = freezed,
+  }) {
+    return _then(MultiPuzzleCurrent(
+      puzzleData == freezed
+          ? _value.puzzleData
+          : puzzleData // ignore: cast_nullable_to_non_nullable
+              as PuzzleData,
+    ));
+  }
+}
+
+/// @nodoc
+
+class _$MultiPuzzleCurrent implements MultiPuzzleCurrent {
+  const _$MultiPuzzleCurrent(this.puzzleData);
+
+  @override
+  final PuzzleData puzzleData;
+
+  @override
+  String toString() {
+    return 'MultiPuzzleState.current(puzzleData: $puzzleData)';
+  }
+
+  @override
+  bool operator ==(dynamic other) {
+    return identical(this, other) ||
+        (other.runtimeType == runtimeType &&
+            other is MultiPuzzleCurrent &&
+            const DeepCollectionEquality()
+                .equals(other.puzzleData, puzzleData));
+  }
+
+  @override
+  int get hashCode =>
+      Object.hash(runtimeType, const DeepCollectionEquality().hash(puzzleData));
+
+  @JsonKey(ignore: true)
+  @override
+  $MultiPuzzleCurrentCopyWith<MultiPuzzleCurrent> get copyWith =>
+      _$MultiPuzzleCurrentCopyWithImpl<MultiPuzzleCurrent>(this, _$identity);
+
+  @override
+  @optionalTypeArgs
+  TResult when<TResult extends Object?>(
+    TResult Function() $default, {
+    required TResult Function() initializing,
+    required TResult Function(PuzzleData puzzleData) current,
+    required TResult Function(PuzzleData puzzleData) solved,
+    required TResult Function(String? message) error,
+  }) {
+    return current(puzzleData);
+  }
+
+  @override
+  @optionalTypeArgs
+  TResult? whenOrNull<TResult extends Object?>(
+    TResult Function()? $default, {
+    TResult Function()? initializing,
+    TResult Function(PuzzleData puzzleData)? current,
+    TResult Function(PuzzleData puzzleData)? solved,
+    TResult Function(String? message)? error,
+  }) {
+    return current?.call(puzzleData);
+  }
+
+  @override
+  @optionalTypeArgs
+  TResult maybeWhen<TResult extends Object?>(
+    TResult Function()? $default, {
+    TResult Function()? initializing,
+    TResult Function(PuzzleData puzzleData)? current,
+    TResult Function(PuzzleData puzzleData)? solved,
+    TResult Function(String? message)? error,
+    required TResult orElse(),
+  }) {
+    if (current != null) {
+      return current(puzzleData);
+    }
+    return orElse();
+  }
+
+  @override
+  @optionalTypeArgs
+  TResult map<TResult extends Object?>(
+    TResult Function(MultiPuzzleIdle value) $default, {
+    required TResult Function(MultiPuzzleInitializing value) initializing,
+    required TResult Function(MultiPuzzleCurrent value) current,
+    required TResult Function(MultiPuzzleSolved value) solved,
+    required TResult Function(MultiPuzzleError value) error,
+  }) {
+    return current(this);
+  }
+
+  @override
+  @optionalTypeArgs
+  TResult? mapOrNull<TResult extends Object?>(
+    TResult Function(MultiPuzzleIdle value)? $default, {
+    TResult Function(MultiPuzzleInitializing value)? initializing,
+    TResult Function(MultiPuzzleCurrent value)? current,
+    TResult Function(MultiPuzzleSolved value)? solved,
+    TResult Function(MultiPuzzleError value)? error,
+  }) {
+    return current?.call(this);
+  }
+
+  @override
+  @optionalTypeArgs
+  TResult maybeMap<TResult extends Object?>(
+    TResult Function(MultiPuzzleIdle value)? $default, {
+    TResult Function(MultiPuzzleInitializing value)? initializing,
+    TResult Function(MultiPuzzleCurrent value)? current,
+    TResult Function(MultiPuzzleSolved value)? solved,
+    TResult Function(MultiPuzzleError value)? error,
+    required TResult orElse(),
+  }) {
+    if (current != null) {
+      return current(this);
+    }
+    return orElse();
+  }
+}
+
+abstract class MultiPuzzleCurrent implements MultiPuzzleState {
+  const factory MultiPuzzleCurrent(PuzzleData puzzleData) =
+      _$MultiPuzzleCurrent;
+
+  PuzzleData get puzzleData;
+  @JsonKey(ignore: true)
+  $MultiPuzzleCurrentCopyWith<MultiPuzzleCurrent> get copyWith =>
+      throw _privateConstructorUsedError;
+}
+
+/// @nodoc
+abstract class $MultiPuzzleSolvedCopyWith<$Res> {
+  factory $MultiPuzzleSolvedCopyWith(
+          MultiPuzzleSolved value, $Res Function(MultiPuzzleSolved) then) =
+      _$MultiPuzzleSolvedCopyWithImpl<$Res>;
+  $Res call({PuzzleData puzzleData});
+}
+
+/// @nodoc
+class _$MultiPuzzleSolvedCopyWithImpl<$Res>
+    extends _$MultiPuzzleStateCopyWithImpl<$Res>
+    implements $MultiPuzzleSolvedCopyWith<$Res> {
+  _$MultiPuzzleSolvedCopyWithImpl(
+      MultiPuzzleSolved _value, $Res Function(MultiPuzzleSolved) _then)
+      : super(_value, (v) => _then(v as MultiPuzzleSolved));
+
+  @override
+  MultiPuzzleSolved get _value => super._value as MultiPuzzleSolved;
+
+  @override
+  $Res call({
+    Object? puzzleData = freezed,
+  }) {
+    return _then(MultiPuzzleSolved(
+      puzzleData == freezed
+          ? _value.puzzleData
+          : puzzleData // ignore: cast_nullable_to_non_nullable
+              as PuzzleData,
+    ));
+  }
+}
+
+/// @nodoc
+
+class _$MultiPuzzleSolved implements MultiPuzzleSolved {
+  const _$MultiPuzzleSolved(this.puzzleData);
+
+  @override
+  final PuzzleData puzzleData;
+
+  @override
+  String toString() {
+    return 'MultiPuzzleState.solved(puzzleData: $puzzleData)';
+  }
+
+  @override
+  bool operator ==(dynamic other) {
+    return identical(this, other) ||
+        (other.runtimeType == runtimeType &&
+            other is MultiPuzzleSolved &&
+            const DeepCollectionEquality()
+                .equals(other.puzzleData, puzzleData));
+  }
+
+  @override
+  int get hashCode =>
+      Object.hash(runtimeType, const DeepCollectionEquality().hash(puzzleData));
+
+  @JsonKey(ignore: true)
+  @override
+  $MultiPuzzleSolvedCopyWith<MultiPuzzleSolved> get copyWith =>
+      _$MultiPuzzleSolvedCopyWithImpl<MultiPuzzleSolved>(this, _$identity);
+
+  @override
+  @optionalTypeArgs
+  TResult when<TResult extends Object?>(
+    TResult Function() $default, {
+    required TResult Function() initializing,
+    required TResult Function(PuzzleData puzzleData) current,
+    required TResult Function(PuzzleData puzzleData) solved,
+    required TResult Function(String? message) error,
+  }) {
+    return solved(puzzleData);
+  }
+
+  @override
+  @optionalTypeArgs
+  TResult? whenOrNull<TResult extends Object?>(
+    TResult Function()? $default, {
+    TResult Function()? initializing,
+    TResult Function(PuzzleData puzzleData)? current,
+    TResult Function(PuzzleData puzzleData)? solved,
+    TResult Function(String? message)? error,
+  }) {
+    return solved?.call(puzzleData);
+  }
+
+  @override
+  @optionalTypeArgs
+  TResult maybeWhen<TResult extends Object?>(
+    TResult Function()? $default, {
+    TResult Function()? initializing,
+    TResult Function(PuzzleData puzzleData)? current,
+    TResult Function(PuzzleData puzzleData)? solved,
+    TResult Function(String? message)? error,
+    required TResult orElse(),
+  }) {
+    if (solved != null) {
+      return solved(puzzleData);
+    }
+    return orElse();
+  }
+
+  @override
+  @optionalTypeArgs
+  TResult map<TResult extends Object?>(
+    TResult Function(MultiPuzzleIdle value) $default, {
+    required TResult Function(MultiPuzzleInitializing value) initializing,
+    required TResult Function(MultiPuzzleCurrent value) current,
+    required TResult Function(MultiPuzzleSolved value) solved,
+    required TResult Function(MultiPuzzleError value) error,
+  }) {
+    return solved(this);
+  }
+
+  @override
+  @optionalTypeArgs
+  TResult? mapOrNull<TResult extends Object?>(
+    TResult Function(MultiPuzzleIdle value)? $default, {
+    TResult Function(MultiPuzzleInitializing value)? initializing,
+    TResult Function(MultiPuzzleCurrent value)? current,
+    TResult Function(MultiPuzzleSolved value)? solved,
+    TResult Function(MultiPuzzleError value)? error,
+  }) {
+    return solved?.call(this);
+  }
+
+  @override
+  @optionalTypeArgs
+  TResult maybeMap<TResult extends Object?>(
+    TResult Function(MultiPuzzleIdle value)? $default, {
+    TResult Function(MultiPuzzleInitializing value)? initializing,
+    TResult Function(MultiPuzzleCurrent value)? current,
+    TResult Function(MultiPuzzleSolved value)? solved,
+    TResult Function(MultiPuzzleError value)? error,
+    required TResult orElse(),
+  }) {
+    if (solved != null) {
+      return solved(this);
+    }
+    return orElse();
+  }
+}
+
+abstract class MultiPuzzleSolved implements MultiPuzzleState {
+  const factory MultiPuzzleSolved(PuzzleData puzzleData) = _$MultiPuzzleSolved;
+
+  PuzzleData get puzzleData;
+  @JsonKey(ignore: true)
+  $MultiPuzzleSolvedCopyWith<MultiPuzzleSolved> get copyWith =>
+      throw _privateConstructorUsedError;
+}
+
+/// @nodoc
+abstract class $MultiPuzzleErrorCopyWith<$Res> {
+  factory $MultiPuzzleErrorCopyWith(
+          MultiPuzzleError value, $Res Function(MultiPuzzleError) then) =
+      _$MultiPuzzleErrorCopyWithImpl<$Res>;
+  $Res call({String? message});
+}
+
+/// @nodoc
+class _$MultiPuzzleErrorCopyWithImpl<$Res>
+    extends _$MultiPuzzleStateCopyWithImpl<$Res>
+    implements $MultiPuzzleErrorCopyWith<$Res> {
+  _$MultiPuzzleErrorCopyWithImpl(
+      MultiPuzzleError _value, $Res Function(MultiPuzzleError) _then)
+      : super(_value, (v) => _then(v as MultiPuzzleError));
+
+  @override
+  MultiPuzzleError get _value => super._value as MultiPuzzleError;
+
+  @override
+  $Res call({
+    Object? message = freezed,
+  }) {
+    return _then(MultiPuzzleError(
+      message: message == freezed
+          ? _value.message
+          : message // ignore: cast_nullable_to_non_nullable
+              as String?,
+    ));
+  }
+}
+
+/// @nodoc
+
+class _$MultiPuzzleError implements MultiPuzzleError {
+  const _$MultiPuzzleError({this.message});
+
+  @override
+  final String? message;
+
+  @override
+  String toString() {
+    return 'MultiPuzzleState.error(message: $message)';
+  }
+
+  @override
+  bool operator ==(dynamic other) {
+    return identical(this, other) ||
+        (other.runtimeType == runtimeType &&
+            other is MultiPuzzleError &&
+            const DeepCollectionEquality().equals(other.message, message));
+  }
+
+  @override
+  int get hashCode =>
+      Object.hash(runtimeType, const DeepCollectionEquality().hash(message));
+
+  @JsonKey(ignore: true)
+  @override
+  $MultiPuzzleErrorCopyWith<MultiPuzzleError> get copyWith =>
+      _$MultiPuzzleErrorCopyWithImpl<MultiPuzzleError>(this, _$identity);
+
+  @override
+  @optionalTypeArgs
+  TResult when<TResult extends Object?>(
+    TResult Function() $default, {
+    required TResult Function() initializing,
+    required TResult Function(PuzzleData puzzleData) current,
+    required TResult Function(PuzzleData puzzleData) solved,
+    required TResult Function(String? message) error,
+  }) {
+    return error(message);
+  }
+
+  @override
+  @optionalTypeArgs
+  TResult? whenOrNull<TResult extends Object?>(
+    TResult Function()? $default, {
+    TResult Function()? initializing,
+    TResult Function(PuzzleData puzzleData)? current,
+    TResult Function(PuzzleData puzzleData)? solved,
+    TResult Function(String? message)? error,
+  }) {
+    return error?.call(message);
+  }
+
+  @override
+  @optionalTypeArgs
+  TResult maybeWhen<TResult extends Object?>(
+    TResult Function()? $default, {
+    TResult Function()? initializing,
+    TResult Function(PuzzleData puzzleData)? current,
+    TResult Function(PuzzleData puzzleData)? solved,
+    TResult Function(String? message)? error,
+    required TResult orElse(),
+  }) {
+    if (error != null) {
+      return error(message);
+    }
+    return orElse();
+  }
+
+  @override
+  @optionalTypeArgs
+  TResult map<TResult extends Object?>(
+    TResult Function(MultiPuzzleIdle value) $default, {
+    required TResult Function(MultiPuzzleInitializing value) initializing,
+    required TResult Function(MultiPuzzleCurrent value) current,
+    required TResult Function(MultiPuzzleSolved value) solved,
+    required TResult Function(MultiPuzzleError value) error,
+  }) {
+    return error(this);
+  }
+
+  @override
+  @optionalTypeArgs
+  TResult? mapOrNull<TResult extends Object?>(
+    TResult Function(MultiPuzzleIdle value)? $default, {
+    TResult Function(MultiPuzzleInitializing value)? initializing,
+    TResult Function(MultiPuzzleCurrent value)? current,
+    TResult Function(MultiPuzzleSolved value)? solved,
+    TResult Function(MultiPuzzleError value)? error,
+  }) {
+    return error?.call(this);
+  }
+
+  @override
+  @optionalTypeArgs
+  TResult maybeMap<TResult extends Object?>(
+    TResult Function(MultiPuzzleIdle value)? $default, {
+    TResult Function(MultiPuzzleInitializing value)? initializing,
+    TResult Function(MultiPuzzleCurrent value)? current,
+    TResult Function(MultiPuzzleSolved value)? solved,
+    TResult Function(MultiPuzzleError value)? error,
+    required TResult orElse(),
+  }) {
+    if (error != null) {
+      return error(this);
+    }
+    return orElse();
+  }
+}
+
+abstract class MultiPuzzleError implements MultiPuzzleState {
+  const factory MultiPuzzleError({String? message}) = _$MultiPuzzleError;
+
+  String? get message;
+  @JsonKey(ignore: true)
+  $MultiPuzzleErrorCopyWith<MultiPuzzleError> get copyWith =>
+      throw _privateConstructorUsedError;
+}

lib/application/states/player_matching_state.dart

@@ -0,0 +1,12 @@
+import 'package:freezed_annotation/freezed_annotation.dart';
+
+part 'player_matching_state.freezed.dart';
+
+@freezed
+class PlayerMatchingState with _$PlayerMatchingState {
+  const factory PlayerMatchingState() = PlayerMatchingIdle;
+  const factory PlayerMatchingState.processing() = PlayerMatchingProcessing;
+  const factory PlayerMatchingState.isMatched(String id) = PlayerMatched;
+  const factory PlayerMatchingState.isQueued() = PlayerQueue;
+  const factory PlayerMatchingState.error({String? message}) = PlayerMatchingError;
+}

lib/application/states/player_matching_state.freezed.dart

@@ -0,0 +1,798 @@
+// coverage:ignore-file
+// GENERATED CODE - DO NOT MODIFY BY HAND
+// ignore_for_file: type=lint
+// ignore_for_file: unused_element, deprecated_member_use, deprecated_member_use_from_same_package, use_function_type_syntax_for_parameters, unnecessary_const, avoid_init_to_null, invalid_override_different_default_values_named, prefer_expression_function_bodies, annotate_overrides, invalid_annotation_target
+
+part of 'player_matching_state.dart';
+
+// **************************************************************************
+// FreezedGenerator
+// **************************************************************************
+
+T _$identity<T>(T value) => value;
+
+final _privateConstructorUsedError = UnsupportedError(
+    'It seems like you constructed your class using `MyClass._()`. This constructor is only meant to be used by freezed and you are not supposed to need it nor use it.\nPlease check the documentation here for more informations: https://github.com/rrousselGit/freezed#custom-getters-and-methods');
+
+/// @nodoc
+class _$PlayerMatchingStateTearOff {
+  const _$PlayerMatchingStateTearOff();
+
+  PlayerMatchingIdle call() {
+    return const PlayerMatchingIdle();
+  }
+
+  PlayerMatchingProcessing processing() {
+    return const PlayerMatchingProcessing();
+  }
+
+  PlayerMatched isMatched(String id) {
+    return PlayerMatched(
+      id,
+    );
+  }
+
+  PlayerQueue isQueued() {
+    return const PlayerQueue();
+  }
+
+  PlayerMatchingError error({String? message}) {
+    return PlayerMatchingError(
+      message: message,
+    );
+  }
+}
+
+/// @nodoc
+const $PlayerMatchingState = _$PlayerMatchingStateTearOff();
+
+/// @nodoc
+mixin _$PlayerMatchingState {
+  @optionalTypeArgs
+  TResult when<TResult extends Object?>(
+    TResult Function() $default, {
+    required TResult Function() processing,
+    required TResult Function(String id) isMatched,
+    required TResult Function() isQueued,
+    required TResult Function(String? message) error,
+  }) =>
+      throw _privateConstructorUsedError;
+  @optionalTypeArgs
+  TResult? whenOrNull<TResult extends Object?>(
+    TResult Function()? $default, {
+    TResult Function()? processing,
+    TResult Function(String id)? isMatched,
+    TResult Function()? isQueued,
+    TResult Function(String? message)? error,
+  }) =>
+      throw _privateConstructorUsedError;
+  @optionalTypeArgs
+  TResult maybeWhen<TResult extends Object?>(
+    TResult Function()? $default, {
+    TResult Function()? processing,
+    TResult Function(String id)? isMatched,
+    TResult Function()? isQueued,
+    TResult Function(String? message)? error,
+    required TResult orElse(),
+  }) =>
+      throw _privateConstructorUsedError;
+  @optionalTypeArgs
+  TResult map<TResult extends Object?>(
+    TResult Function(PlayerMatchingIdle value) $default, {
+    required TResult Function(PlayerMatchingProcessing value) processing,
+    required TResult Function(PlayerMatched value) isMatched,
+    required TResult Function(PlayerQueue value) isQueued,
+    required TResult Function(PlayerMatchingError value) error,
+  }) =>
+      throw _privateConstructorUsedError;
+  @optionalTypeArgs
+  TResult? mapOrNull<TResult extends Object?>(
+    TResult Function(PlayerMatchingIdle value)? $default, {
+    TResult Function(PlayerMatchingProcessing value)? processing,
+    TResult Function(PlayerMatched value)? isMatched,
+    TResult Function(PlayerQueue value)? isQueued,
+    TResult Function(PlayerMatchingError value)? error,
+  }) =>
+      throw _privateConstructorUsedError;
+  @optionalTypeArgs
+  TResult maybeMap<TResult extends Object?>(
+    TResult Function(PlayerMatchingIdle value)? $default, {
+    TResult Function(PlayerMatchingProcessing value)? processing,
+    TResult Function(PlayerMatched value)? isMatched,
+    TResult Function(PlayerQueue value)? isQueued,
+    TResult Function(PlayerMatchingError value)? error,
+    required TResult orElse(),
+  }) =>
+      throw _privateConstructorUsedError;
+}
+
+/// @nodoc
+abstract class $PlayerMatchingStateCopyWith<$Res> {
+  factory $PlayerMatchingStateCopyWith(
+          PlayerMatchingState value, $Res Function(PlayerMatchingState) then) =
+      _$PlayerMatchingStateCopyWithImpl<$Res>;
+}
+
+/// @nodoc
+class _$PlayerMatchingStateCopyWithImpl<$Res>
+    implements $PlayerMatchingStateCopyWith<$Res> {
+  _$PlayerMatchingStateCopyWithImpl(this._value, this._then);
+
+  final PlayerMatchingState _value;
+  // ignore: unused_field
+  final $Res Function(PlayerMatchingState) _then;
+}
+
+/// @nodoc
+abstract class $PlayerMatchingIdleCopyWith<$Res> {
+  factory $PlayerMatchingIdleCopyWith(
+          PlayerMatchingIdle value, $Res Function(PlayerMatchingIdle) then) =
+      _$PlayerMatchingIdleCopyWithImpl<$Res>;
+}
+
+/// @nodoc
+class _$PlayerMatchingIdleCopyWithImpl<$Res>
+    extends _$PlayerMatchingStateCopyWithImpl<$Res>
+    implements $PlayerMatchingIdleCopyWith<$Res> {
+  _$PlayerMatchingIdleCopyWithImpl(
+      PlayerMatchingIdle _value, $Res Function(PlayerMatchingIdle) _then)
+      : super(_value, (v) => _then(v as PlayerMatchingIdle));
+
+  @override
+  PlayerMatchingIdle get _value => super._value as PlayerMatchingIdle;
+}
+
+/// @nodoc
+
+class _$PlayerMatchingIdle implements PlayerMatchingIdle {
+  const _$PlayerMatchingIdle();
+
+  @override
+  String toString() {
+    return 'PlayerMatchingState()';
+  }
+
+  @override
+  bool operator ==(dynamic other) {
+    return identical(this, other) ||
+        (other.runtimeType == runtimeType && other is PlayerMatchingIdle);
+  }
+
+  @override
+  int get hashCode => runtimeType.hashCode;
+
+  @override
+  @optionalTypeArgs
+  TResult when<TResult extends Object?>(
+    TResult Function() $default, {
+    required TResult Function() processing,
+    required TResult Function(String id) isMatched,
+    required TResult Function() isQueued,
+    required TResult Function(String? message) error,
+  }) {
+    return $default();
+  }
+
+  @override
+  @optionalTypeArgs
+  TResult? whenOrNull<TResult extends Object?>(
+    TResult Function()? $default, {
+    TResult Function()? processing,
+    TResult Function(String id)? isMatched,
+    TResult Function()? isQueued,
+    TResult Function(String? message)? error,
+  }) {
+    return $default?.call();
+  }
+
+  @override
+  @optionalTypeArgs
+  TResult maybeWhen<TResult extends Object?>(
+    TResult Function()? $default, {
+    TResult Function()? processing,
+    TResult Function(String id)? isMatched,
+    TResult Function()? isQueued,
+    TResult Function(String? message)? error,
+    required TResult orElse(),
+  }) {
+    if ($default != null) {
+      return $default();
+    }
+    return orElse();
+  }
+
+  @override
+  @optionalTypeArgs
+  TResult map<TResult extends Object?>(
+    TResult Function(PlayerMatchingIdle value) $default, {
+    required TResult Function(PlayerMatchingProcessing value) processing,
+    required TResult Function(PlayerMatched value) isMatched,
+    required TResult Function(PlayerQueue value) isQueued,
+    required TResult Function(PlayerMatchingError value) error,
+  }) {
+    return $default(this);
+  }
+
+  @override
+  @optionalTypeArgs
+  TResult? mapOrNull<TResult extends Object?>(
+    TResult Function(PlayerMatchingIdle value)? $default, {
+    TResult Function(PlayerMatchingProcessing value)? processing,
+    TResult Function(PlayerMatched value)? isMatched,
+    TResult Function(PlayerQueue value)? isQueued,
+    TResult Function(PlayerMatchingError value)? error,
+  }) {
+    return $default?.call(this);
+  }
+
+  @override
+  @optionalTypeArgs
+  TResult maybeMap<TResult extends Object?>(
+    TResult Function(PlayerMatchingIdle value)? $default, {
+    TResult Function(PlayerMatchingProcessing value)? processing,
+    TResult Function(PlayerMatched value)? isMatched,
+    TResult Function(PlayerQueue value)? isQueued,
+    TResult Function(PlayerMatchingError value)? error,
+    required TResult orElse(),
+  }) {
+    if ($default != null) {
+      return $default(this);
+    }
+    return orElse();
+  }
+}
+
+abstract class PlayerMatchingIdle implements PlayerMatchingState {
+  const factory PlayerMatchingIdle() = _$PlayerMatchingIdle;
+}
+
+/// @nodoc
+abstract class $PlayerMatchingProcessingCopyWith<$Res> {
+  factory $PlayerMatchingProcessingCopyWith(PlayerMatchingProcessing value,
+          $Res Function(PlayerMatchingProcessing) then) =
+      _$PlayerMatchingProcessingCopyWithImpl<$Res>;
+}
+
+/// @nodoc
+class _$PlayerMatchingProcessingCopyWithImpl<$Res>
+    extends _$PlayerMatchingStateCopyWithImpl<$Res>
+    implements $PlayerMatchingProcessingCopyWith<$Res> {
+  _$PlayerMatchingProcessingCopyWithImpl(PlayerMatchingProcessing _value,
+      $Res Function(PlayerMatchingProcessing) _then)
+      : super(_value, (v) => _then(v as PlayerMatchingProcessing));
+
+  @override
+  PlayerMatchingProcessing get _value =>
+      super._value as PlayerMatchingProcessing;
+}
+
+/// @nodoc
+
+class _$PlayerMatchingProcessing implements PlayerMatchingProcessing {
+  const _$PlayerMatchingProcessing();
+
+  @override
+  String toString() {
+    return 'PlayerMatchingState.processing()';
+  }
+
+  @override
+  bool operator ==(dynamic other) {
+    return identical(this, other) ||
+        (other.runtimeType == runtimeType && other is PlayerMatchingProcessing);
+  }
+
+  @override
+  int get hashCode => runtimeType.hashCode;
+
+  @override
+  @optionalTypeArgs
+  TResult when<TResult extends Object?>(
+    TResult Function() $default, {
+    required TResult Function() processing,
+    required TResult Function(String id) isMatched,
+    required TResult Function() isQueued,
+    required TResult Function(String? message) error,
+  }) {
+    return processing();
+  }
+
+  @override
+  @optionalTypeArgs
+  TResult? whenOrNull<TResult extends Object?>(
+    TResult Function()? $default, {
+    TResult Function()? processing,
+    TResult Function(String id)? isMatched,
+    TResult Function()? isQueued,
+    TResult Function(String? message)? error,
+  }) {
+    return processing?.call();
+  }
+
+  @override
+  @optionalTypeArgs
+  TResult maybeWhen<TResult extends Object?>(
+    TResult Function()? $default, {
+    TResult Function()? processing,
+    TResult Function(String id)? isMatched,
+    TResult Function()? isQueued,
+    TResult Function(String? message)? error,
+    required TResult orElse(),
+  }) {
+    if (processing != null) {
+      return processing();
+    }
+    return orElse();
+  }
+
+  @override
+  @optionalTypeArgs
+  TResult map<TResult extends Object?>(
+    TResult Function(PlayerMatchingIdle value) $default, {
+    required TResult Function(PlayerMatchingProcessing value) processing,
+    required TResult Function(PlayerMatched value) isMatched,
+    required TResult Function(PlayerQueue value) isQueued,
+    required TResult Function(PlayerMatchingError value) error,
+  }) {
+    return processing(this);
+  }
+
+  @override
+  @optionalTypeArgs
+  TResult? mapOrNull<TResult extends Object?>(
+    TResult Function(PlayerMatchingIdle value)? $default, {
+    TResult Function(PlayerMatchingProcessing value)? processing,
+    TResult Function(PlayerMatched value)? isMatched,
+    TResult Function(PlayerQueue value)? isQueued,
+    TResult Function(PlayerMatchingError value)? error,
+  }) {
+    return processing?.call(this);
+  }
+
+  @override
+  @optionalTypeArgs
+  TResult maybeMap<TResult extends Object?>(
+    TResult Function(PlayerMatchingIdle value)? $default, {
+    TResult Function(PlayerMatchingProcessing value)? processing,
+    TResult Function(PlayerMatched value)? isMatched,
+    TResult Function(PlayerQueue value)? isQueued,
+    TResult Function(PlayerMatchingError value)? error,
+    required TResult orElse(),
+  }) {
+    if (processing != null) {
+      return processing(this);
+    }
+    return orElse();
+  }
+}
+
+abstract class PlayerMatchingProcessing implements PlayerMatchingState {
+  const factory PlayerMatchingProcessing() = _$PlayerMatchingProcessing;
+}
+
+/// @nodoc
+abstract class $PlayerMatchedCopyWith<$Res> {
+  factory $PlayerMatchedCopyWith(
+          PlayerMatched value, $Res Function(PlayerMatched) then) =
+      _$PlayerMatchedCopyWithImpl<$Res>;
+  $Res call({String id});
+}
+
+/// @nodoc
+class _$PlayerMatchedCopyWithImpl<$Res>
+    extends _$PlayerMatchingStateCopyWithImpl<$Res>
+    implements $PlayerMatchedCopyWith<$Res> {
+  _$PlayerMatchedCopyWithImpl(
+      PlayerMatched _value, $Res Function(PlayerMatched) _then)
+      : super(_value, (v) => _then(v as PlayerMatched));
+
+  @override
+  PlayerMatched get _value => super._value as PlayerMatched;
+
+  @override
+  $Res call({
+    Object? id = freezed,
+  }) {
+    return _then(PlayerMatched(
+      id == freezed
+          ? _value.id
+          : id // ignore: cast_nullable_to_non_nullable
+              as String,
+    ));
+  }
+}
+
+/// @nodoc
+
+class _$PlayerMatched implements PlayerMatched {
+  const _$PlayerMatched(this.id);
+
+  @override
+  final String id;
+
+  @override
+  String toString() {
+    return 'PlayerMatchingState.isMatched(id: $id)';
+  }
+
+  @override
+  bool operator ==(dynamic other) {
+    return identical(this, other) ||
+        (other.runtimeType == runtimeType &&
+            other is PlayerMatched &&
+            const DeepCollectionEquality().equals(other.id, id));
+  }
+
+  @override
+  int get hashCode =>
+      Object.hash(runtimeType, const DeepCollectionEquality().hash(id));
+
+  @JsonKey(ignore: true)
+  @override
+  $PlayerMatchedCopyWith<PlayerMatched> get copyWith =>
+      _$PlayerMatchedCopyWithImpl<PlayerMatched>(this, _$identity);
+
+  @override
+  @optionalTypeArgs
+  TResult when<TResult extends Object?>(
+    TResult Function() $default, {
+    required TResult Function() processing,
+    required TResult Function(String id) isMatched,
+    required TResult Function() isQueued,
+    required TResult Function(String? message) error,
+  }) {
+    return isMatched(id);
+  }
+
+  @override
+  @optionalTypeArgs
+  TResult? whenOrNull<TResult extends Object?>(
+    TResult Function()? $default, {
+    TResult Function()? processing,
+    TResult Function(String id)? isMatched,
+    TResult Function()? isQueued,
+    TResult Function(String? message)? error,
+  }) {
+    return isMatched?.call(id);
+  }
+
+  @override
+  @optionalTypeArgs
+  TResult maybeWhen<TResult extends Object?>(
+    TResult Function()? $default, {
+    TResult Function()? processing,
+    TResult Function(String id)? isMatched,
+    TResult Function()? isQueued,
+    TResult Function(String? message)? error,
+    required TResult orElse(),
+  }) {
+    if (isMatched != null) {
+      return isMatched(id);
+    }
+    return orElse();
+  }
+
+  @override
+  @optionalTypeArgs
+  TResult map<TResult extends Object?>(
+    TResult Function(PlayerMatchingIdle value) $default, {
+    required TResult Function(PlayerMatchingProcessing value) processing,
+    required TResult Function(PlayerMatched value) isMatched,
+    required TResult Function(PlayerQueue value) isQueued,
+    required TResult Function(PlayerMatchingError value) error,
+  }) {
+    return isMatched(this);
+  }
+
+  @override
+  @optionalTypeArgs
+  TResult? mapOrNull<TResult extends Object?>(
+    TResult Function(PlayerMatchingIdle value)? $default, {
+    TResult Function(PlayerMatchingProcessing value)? processing,
+    TResult Function(PlayerMatched value)? isMatched,
+    TResult Function(PlayerQueue value)? isQueued,
+    TResult Function(PlayerMatchingError value)? error,
+  }) {
+    return isMatched?.call(this);
+  }
+
+  @override
+  @optionalTypeArgs
+  TResult maybeMap<TResult extends Object?>(
+    TResult Function(PlayerMatchingIdle value)? $default, {
+    TResult Function(PlayerMatchingProcessing value)? processing,
+    TResult Function(PlayerMatched value)? isMatched,
+    TResult Function(PlayerQueue value)? isQueued,
+    TResult Function(PlayerMatchingError value)? error,
+    required TResult orElse(),
+  }) {
+    if (isMatched != null) {
+      return isMatched(this);
+    }
+    return orElse();
+  }
+}
+
+abstract class PlayerMatched implements PlayerMatchingState {
+  const factory PlayerMatched(String id) = _$PlayerMatched;
+
+  String get id;
+  @JsonKey(ignore: true)
+  $PlayerMatchedCopyWith<PlayerMatched> get copyWith =>
+      throw _privateConstructorUsedError;
+}
+
+/// @nodoc
+abstract class $PlayerQueueCopyWith<$Res> {
+  factory $PlayerQueueCopyWith(
+          PlayerQueue value, $Res Function(PlayerQueue) then) =
+      _$PlayerQueueCopyWithImpl<$Res>;
+}
+
+/// @nodoc
+class _$PlayerQueueCopyWithImpl<$Res>
+    extends _$PlayerMatchingStateCopyWithImpl<$Res>
+    implements $PlayerQueueCopyWith<$Res> {
+  _$PlayerQueueCopyWithImpl(
+      PlayerQueue _value, $Res Function(PlayerQueue) _then)
+      : super(_value, (v) => _then(v as PlayerQueue));
+
+  @override
+  PlayerQueue get _value => super._value as PlayerQueue;
+}
+
+/// @nodoc
+
+class _$PlayerQueue implements PlayerQueue {
+  const _$PlayerQueue();
+
+  @override
+  String toString() {
+    return 'PlayerMatchingState.isQueued()';
+  }
+
+  @override
+  bool operator ==(dynamic other) {
+    return identical(this, other) ||
+        (other.runtimeType == runtimeType && other is PlayerQueue);
+  }
+
+  @override
+  int get hashCode => runtimeType.hashCode;
+
+  @override
+  @optionalTypeArgs
+  TResult when<TResult extends Object?>(
+    TResult Function() $default, {
+    required TResult Function() processing,
+    required TResult Function(String id) isMatched,
+    required TResult Function() isQueued,
+    required TResult Function(String? message) error,
+  }) {
+    return isQueued();
+  }
+
+  @override
+  @optionalTypeArgs
+  TResult? whenOrNull<TResult extends Object?>(
+    TResult Function()? $default, {
+    TResult Function()? processing,
+    TResult Function(String id)? isMatched,
+    TResult Function()? isQueued,
+    TResult Function(String? message)? error,
+  }) {
+    return isQueued?.call();
+  }
+
+  @override
+  @optionalTypeArgs
+  TResult maybeWhen<TResult extends Object?>(
+    TResult Function()? $default, {
+    TResult Function()? processing,
+    TResult Function(String id)? isMatched,
+    TResult Function()? isQueued,
+    TResult Function(String? message)? error,
+    required TResult orElse(),
+  }) {
+    if (isQueued != null) {
+      return isQueued();
+    }
+    return orElse();
+  }
+
+  @override
+  @optionalTypeArgs
+  TResult map<TResult extends Object?>(
+    TResult Function(PlayerMatchingIdle value) $default, {
+    required TResult Function(PlayerMatchingProcessing value) processing,
+    required TResult Function(PlayerMatched value) isMatched,
+    required TResult Function(PlayerQueue value) isQueued,
+    required TResult Function(PlayerMatchingError value) error,
+  }) {
+    return isQueued(this);
+  }
+
+  @override
+  @optionalTypeArgs
+  TResult? mapOrNull<TResult extends Object?>(
+    TResult Function(PlayerMatchingIdle value)? $default, {
+    TResult Function(PlayerMatchingProcessing value)? processing,
+    TResult Function(PlayerMatched value)? isMatched,
+    TResult Function(PlayerQueue value)? isQueued,
+    TResult Function(PlayerMatchingError value)? error,
+  }) {
+    return isQueued?.call(this);
+  }
+
+  @override
+  @optionalTypeArgs
+  TResult maybeMap<TResult extends Object?>(
+    TResult Function(PlayerMatchingIdle value)? $default, {
+    TResult Function(PlayerMatchingProcessing value)? processing,
+    TResult Function(PlayerMatched value)? isMatched,
+    TResult Function(PlayerQueue value)? isQueued,
+    TResult Function(PlayerMatchingError value)? error,
+    required TResult orElse(),
+  }) {
+    if (isQueued != null) {
+      return isQueued(this);
+    }
+    return orElse();
+  }
+}
+
+abstract class PlayerQueue implements PlayerMatchingState {
+  const factory PlayerQueue() = _$PlayerQueue;
+}
+
+/// @nodoc
+abstract class $PlayerMatchingErrorCopyWith<$Res> {
+  factory $PlayerMatchingErrorCopyWith(
+          PlayerMatchingError value, $Res Function(PlayerMatchingError) then) =
+      _$PlayerMatchingErrorCopyWithImpl<$Res>;
+  $Res call({String? message});
+}
+
+/// @nodoc
+class _$PlayerMatchingErrorCopyWithImpl<$Res>
+    extends _$PlayerMatchingStateCopyWithImpl<$Res>
+    implements $PlayerMatchingErrorCopyWith<$Res> {
+  _$PlayerMatchingErrorCopyWithImpl(
+      PlayerMatchingError _value, $Res Function(PlayerMatchingError) _then)
+      : super(_value, (v) => _then(v as PlayerMatchingError));
+
+  @override
+  PlayerMatchingError get _value => super._value as PlayerMatchingError;
+
+  @override
+  $Res call({
+    Object? message = freezed,
+  }) {
+    return _then(PlayerMatchingError(
+      message: message == freezed
+          ? _value.message
+          : message // ignore: cast_nullable_to_non_nullable
+              as String?,
+    ));
+  }
+}
+
+/// @nodoc
+
+class _$PlayerMatchingError implements PlayerMatchingError {
+  const _$PlayerMatchingError({this.message});
+
+  @override
+  final String? message;
+
+  @override
+  String toString() {
+    return 'PlayerMatchingState.error(message: $message)';
+  }
+
+  @override
+  bool operator ==(dynamic other) {
+    return identical(this, other) ||
+        (other.runtimeType == runtimeType &&
+            other is PlayerMatchingError &&
+            const DeepCollectionEquality().equals(other.message, message));
+  }
+
+  @override
+  int get hashCode =>
+      Object.hash(runtimeType, const DeepCollectionEquality().hash(message));
+
+  @JsonKey(ignore: true)
+  @override
+  $PlayerMatchingErrorCopyWith<PlayerMatchingError> get copyWith =>
+      _$PlayerMatchingErrorCopyWithImpl<PlayerMatchingError>(this, _$identity);
+
+  @override
+  @optionalTypeArgs
+  TResult when<TResult extends Object?>(
+    TResult Function() $default, {
+    required TResult Function() processing,
+    required TResult Function(String id) isMatched,
+    required TResult Function() isQueued,
+    required TResult Function(String? message) error,
+  }) {
+    return error(message);
+  }
+
+  @override
+  @optionalTypeArgs
+  TResult? whenOrNull<TResult extends Object?>(
+    TResult Function()? $default, {
+    TResult Function()? processing,
+    TResult Function(String id)? isMatched,
+    TResult Function()? isQueued,
+    TResult Function(String? message)? error,
+  }) {
+    return error?.call(message);
+  }
+
+  @override
+  @optionalTypeArgs
+  TResult maybeWhen<TResult extends Object?>(
+    TResult Function()? $default, {
+    TResult Function()? processing,
+    TResult Function(String id)? isMatched,
+    TResult Function()? isQueued,
+    TResult Function(String? message)? error,
+    required TResult orElse(),
+  }) {
+    if (error != null) {
+      return error(message);
+    }
+    return orElse();
+  }
+
+  @override
+  @optionalTypeArgs
+  TResult map<TResult extends Object?>(
+    TResult Function(PlayerMatchingIdle value) $default, {
+    required TResult Function(PlayerMatchingProcessing value) processing,
+    required TResult Function(PlayerMatched value) isMatched,
+    required TResult Function(PlayerQueue value) isQueued,
+    required TResult Function(PlayerMatchingError value) error,
+  }) {
+    return error(this);
+  }
+
+  @override
+  @optionalTypeArgs
+  TResult? mapOrNull<TResult extends Object?>(
+    TResult Function(PlayerMatchingIdle value)? $default, {
+    TResult Function(PlayerMatchingProcessing value)? processing,
+    TResult Function(PlayerMatched value)? isMatched,
+    TResult Function(PlayerQueue value)? isQueued,
+    TResult Function(PlayerMatchingError value)? error,
+  }) {
+    return error?.call(this);
+  }
+
+  @override
+  @optionalTypeArgs
+  TResult maybeMap<TResult extends Object?>(
+    TResult Function(PlayerMatchingIdle value)? $default, {
+    TResult Function(PlayerMatchingProcessing value)? processing,
+    TResult Function(PlayerMatched value)? isMatched,
+    TResult Function(PlayerQueue value)? isQueued,
+    TResult Function(PlayerMatchingError value)? error,
+    required TResult orElse(),
+  }) {
+    if (error != null) {
+      return error(this);
+    }
+    return orElse();
+  }
+}
+
+abstract class PlayerMatchingError implements PlayerMatchingState {
+  const factory PlayerMatchingError({String? message}) = _$PlayerMatchingError;
+
+  String? get message;
+  @JsonKey(ignore: true)
+  $PlayerMatchingErrorCopyWith<PlayerMatchingError> get copyWith =>
+      throw _privateConstructorUsedError;
+}

lib/application/states/puzzle_state.dart

@@ -0,0 +1,16 @@
+import 'package:freezed_annotation/freezed_annotation.dart';
+import 'package:my_flutter_puzzle/models/puzzle_data.dart';
+
+part 'puzzle_state.freezed.dart';
+
+@freezed
+class PuzzleState with _$PuzzleState {
+  const factory PuzzleState() = PuzzleIdle;
+  const factory PuzzleState.initializing() = PuzzleInitializing;
+  const factory PuzzleState.scrambling(PuzzleData puzzleData) = PuzzleScrambling;
+  const factory PuzzleState.current(PuzzleData puzzleData) = PuzzleCurrent;
+  const factory PuzzleState.computingSolution(PuzzleData puzzleData) = PuzzleComputingSolution;
+  const factory PuzzleState.autoSolving(PuzzleData puzzleData) = PuzzleAutoSolving;
+  const factory PuzzleState.solved(PuzzleData puzzleData) = PuzzleSolved;
+  const factory PuzzleState.error({String? message}) = PuzzleError;
+}

lib/main.dart

@@ -0,0 +1,45 @@
+import 'package:flutter/material.dart';
+import 'package:flutter_riverpod/flutter_riverpod.dart';
+import 'package:my_flutter_puzzle/res/palette.dart';
+import 'package:my_flutter_puzzle/screens/level_list/screen/level_list_screen.dart';
+import 'package:my_flutter_puzzle/utils/color_brightness.dart';
+import 'package:url_strategy/url_strategy.dart';
+
+void main() async {
+  setPathUrlStrategy();
+
+  WidgetsFlutterBinding.ensureInitialized();
+
+  runApp(const ProviderScope(child: MyApp()));
+}
+
+class MyApp extends StatelessWidget {
+  const MyApp({Key? key}) : super(key: key);
+
+  @override
+  Widget build(BuildContext context) {
+    return MaterialApp(
+      title: 'Flutter Puzzle',
+      debugShowCheckedModeBanner: false,
+      theme: ThemeData(
+        primarySwatch: Colors.blue,
+        fontFamily: 'GoogleSans',
+        backgroundColor: Palette.blue.darken(0.3),
+        colorScheme: ColorScheme(
+          brightness: Theme.of(context).brightness,
+          primary: Palette.blue,
+          onPrimary: Colors.white,
+          secondary: Palette.blue.withOpacity(0.6),
+          onSecondary: Palette.blue.withOpacity(0.3),
+          error: Theme.of(context).colorScheme.error,
+          onError: Theme.of(context).colorScheme.onError,
+          background: Palette.blue.darken(0.3),
+          onBackground: Colors.white,
+          surface: Palette.crimson,
+          onSurface: Colors.white38,
+        ),
+      ),
+      home: const LevelListScreen(),
+    );
+  }
+}

lib/models/puzzle_data.dart

@@ -0,0 +1,43 @@
+import 'package:flutter/foundation.dart';
+import 'package:flutter/widgets.dart';
+
+class PuzzleData {
+  final List<List<int>> board2D;
+  final List<int> board1D;
+  final int moves;
+  final int tiles;
+  final int puzzleSize;
+  final Map<int, FractionalOffset> offsetMap;
+
+  PuzzleData({
+    required this.board2D,
+    required this.board1D,
+    required this.offsetMap,
+    required this.moves,
+    required this.tiles,
+    required this.puzzleSize,
+  });
+
+  @override
+  bool operator ==(Object other) {
+    if (identical(this, other)) return true;
+
+    return other is PuzzleData &&
+        listEquals(other.board2D, board2D) &&
+        listEquals(other.board1D, board1D) &&
+        other.moves == moves &&
+        other.tiles == tiles &&
+        other.puzzleSize == puzzleSize &&
+        mapEquals(other.offsetMap, offsetMap);
+  }
+
+  @override
+  int get hashCode {
+    return board2D.hashCode ^
+        board1D.hashCode ^
+        moves.hashCode ^
+        tiles.hashCode ^
+        puzzleSize.hashCode ^
+        offsetMap.hashCode;
+  }
+}

lib/models/user_info.dart

@@ -0,0 +1,53 @@
+class UserData {
+  final String uid;
+  final String name;
+  final String username;
+  final int timestamp;
+
+  UserData({
+    required this.uid,
+    required this.name,
+    required this.username,
+    required this.timestamp,
+  });
+
+  UserData.fromJson(Map<String, dynamic> json)
+      : uid = json['uid'],
+        name = json['name'],
+        username = json['username'],
+        timestamp = json['timestamp'];
+
+  Map<String, dynamic> toJson() => {
+        'uid': uid,
+        'name': name,
+        'username': username,
+        'timestamp': timestamp,
+      };
+}
+
+class EUserData {
+  final String uid;
+  final String username;
+  final String email;
+  final int timestamp;
+
+  EUserData({
+    required this.uid,
+    required this.username,
+    required this.email,
+    required this.timestamp,
+  });
+
+  EUserData.fromJson(Map<String, dynamic> json)
+      : uid = json['uid'],
+        username = json['username'],
+        email = json['email'],
+        timestamp = json['timestamp'];
+
+  Map<String, dynamic> toJson() => {
+        'uid': uid,
+        'username': username,
+        'email': email,
+        'timestamp': timestamp,
+      };
+}

lib/providers.dart

@@ -0,0 +1,35 @@
+import 'package:flutter_riverpod/flutter_riverpod.dart';
+import 'package:my_flutter_puzzle/application/notifiers/image_splitter_notifier.dart';
+import 'package:my_flutter_puzzle/application/notifiers/login_register_notifier.dart';
+import 'package:my_flutter_puzzle/application/notifiers/puzzle_notifier.dart';
+import 'package:my_flutter_puzzle/application/notifiers/puzzle_type_notifier.dart';
+import 'package:my_flutter_puzzle/application/states/image_splitter_state.dart';
+import 'package:my_flutter_puzzle/application/states/puzzle_state.dart';
+import 'package:my_flutter_puzzle/utils/image_splitter.dart';
+import 'package:my_flutter_puzzle/utils/puzzle_solver.dart';
+
+import 'application/notifiers/timer_notifier.dart';
+
+final imageSplitterProvider = Provider<ImageSplitter>((ref) => ImageSplitter());
+
+final puzzleNotifierProvider = StateNotifierProvider.family<PuzzleNotifier, PuzzleState, PuzzleSolverClient>(
+  (ref, solverClient) => PuzzleNotifier(solverClient),
+);
+
+final imageSplitterNotifierProvider = StateNotifierProvider<ImageSplitterNotifier, ImageSplitterState>(
+  (ref) => ImageSplitterNotifier(
+    ref.watch(imageSplitterProvider),
+  ),
+);
+
+final timerNotifierProvider = StateNotifierProvider<TimerNotifier, String>(
+  ((ref) => TimerNotifier()),
+);
+
+final puzzleTypeNotifierProvider = StateNotifierProvider<PuzzleTypeNotifier, PuzzleType>(
+  (ref) => PuzzleTypeNotifier(),
+);
+
+final isLoginNotifier = StateNotifierProvider<IsLoginNotifier, bool>(
+  (ref) => IsLoginNotifier(),
+);

lib/res/palette.dart

@@ -0,0 +1,7 @@
+import 'package:flutter/material.dart';
+
+class Palette {
+  static const Color blue = Color(0xFF2868d7);
+  static const Color violet = Color(0xFF5E239D);
+  static const Color crimson = Color(0xffD33F49);
+}

lib/res/puzzle_constants.dart

@@ -0,0 +1 @@
+const int kInitialSpeed = 1000;

lib/res/strings.dart

@@ -0,0 +1,19 @@
+class Strings {
+  static const usersCollectionName = 'users';
+  static const queueCollectionName = 'queue';
+  static const matchedCollectionName = 'matched';
+  static const idFieldName = 'id';
+  static const myuidFieldName = 'myuid';
+  static const otheruidFieldName = 'otheruid';
+  static const mylistFieldName = 'mylist';
+  static const otherlistFieldName = 'otherlist';
+  static const mymovesFieldName = 'mymoves';
+  static const othermovesFieldName = 'othermoves';
+}
+
+const defaultImagePath = 'assets/images/default_image.png';
+
+/// username can be made like this
+/// <entered_name>@<uid>
+/// eg: souvik@124432523
+

lib/screens/level_list/screen/level_list_screen.dart

@@ -0,0 +1,79 @@
+import 'package:flutter/material.dart';
+import 'package:my_flutter_puzzle/screens/puzzle/puzzle_starter_screen.dart';
+import 'package:my_flutter_puzzle/utils/extensions/string_extensions.dart';
+
+class LevelListScreen extends StatefulWidget {
+  const LevelListScreen({Key? key}) : super(key: key);
+
+  @override
+  State<LevelListScreen> createState() => _LevelListScreenState();
+}
+
+class _LevelListScreenState extends State<LevelListScreen> {
+  final List<Level> _levelList = [];
+
+  @override
+  void initState() {
+    _levelList.add(Level(image: 'default_image'.pngPath, duration: 4, puzzleSize: 3));
+    _levelList.add(Level(image: 'default_image'.pngPath, duration: 4, puzzleSize: 3));
+    _levelList.add(Level(image: 'default_image'.pngPath, duration: 4, puzzleSize: 3));
+    _levelList.add(Level(image: 'default_image'.pngPath, duration: 6, puzzleSize: 4));
+    _levelList.add(Level(image: 'default_image'.pngPath, duration: 6, puzzleSize: 4));
+    _levelList.add(Level(image: 'default_image'.pngPath, duration: 6, puzzleSize: 4));
+    _levelList.add(Level(image: 'default_image'.pngPath, duration: 8, puzzleSize: 5));
+    _levelList.add(Level(image: 'default_image'.pngPath, duration: 8, puzzleSize: 5));
+    _levelList.add(Level(image: 'default_image'.pngPath, duration: 8, puzzleSize: 5));
+    super.initState();
+  }
+
+  @override
+  Widget build(BuildContext context) {
+    return Scaffold(
+      body: GridView.builder(
+        gridDelegate: const SliverGridDelegateWithFixedCrossAxisCount(crossAxisCount: 4),
+        itemBuilder: (context, index) {
+          return Container(
+            margin: const EdgeInsets.all(8),
+            decoration: BoxDecoration(
+              color: Colors.orange,
+              borderRadius: BorderRadius.circular(16),
+            ),
+            child: Column(
+              children: [
+                Text('مرحله شماره ${index + 1}'),
+                const SizedBox(height: 8),
+                Text("زمان بازی : ${_levelList[index].duration} دقیقه"),
+                const SizedBox(height: 8),
+                GestureDetector(
+                  child: const Text('شروغ'),
+                  onTap: () => _startLevel(_levelList[index]),
+                ),
+              ],
+            ),
+          );
+        },
+        itemCount: _levelList.length,
+      ),
+    );
+  }
+
+  void _startLevel(Level level) {
+    Navigator.push(context, MaterialPageRoute(
+      builder: (context) {
+        return PuzzleStarterScreen(
+          duration: level.duration,
+          puzzleSize: level.puzzleSize,
+          image: level.image,
+        );
+      },
+    ));
+  }
+}
+
+class Level {
+  final String image;
+  final int puzzleSize;
+  final int duration;
+
+  Level({required this.image, required this.duration, required this.puzzleSize});
+}

lib/screens/login_screen_name.dart

@@ -0,0 +1,54 @@
+import 'package:flutter/material.dart';
+import 'package:my_flutter_puzzle/widgets/login_widgets/name_field.dart';
+
+class LoginScreenName extends StatefulWidget {
+  const LoginScreenName({Key? key}) : super(key: key);
+
+  @override
+  State<LoginScreenName> createState() => _LoginScreenNameState();
+}
+
+class _LoginScreenNameState extends State<LoginScreenName> {
+  late final TextEditingController _nameTextController;
+  late final FocusNode _nameFocusNode;
+
+  String _nameString = '';
+
+  @override
+  void initState() {
+    super.initState();
+    _nameTextController = TextEditingController();
+    _nameFocusNode = FocusNode();
+  }
+
+  @override
+  Widget build(BuildContext context) {
+    var screenSize = MediaQuery.of(context).size;
+    return GestureDetector(
+      onTap: () => _nameFocusNode.unfocus(),
+      child: Scaffold(
+        backgroundColor: Colors.white,
+        body: Center(
+          child: SizedBox(
+            width: screenSize.width * 0.5,
+            child: Column(
+              mainAxisAlignment: MainAxisAlignment.center,
+              children: [
+                NameField(
+                  focusNode: _nameFocusNode,
+                  onChange: (value) => setState(
+                    () => _nameString = value,
+                  ),
+                ),
+                const SizedBox(height: 24),
+                // StartGameWidget(
+                //   nameString: _nameString,
+                // ),
+              ],
+            ),
+          ),
+        ),
+      ),
+    );
+  }
+}