Refactor Agent app to enhance settings management and introduce prompts

- Updated `AgentSettings` model to serve as a singleton container, removing unnecessary fields and adding an `updated_at` timestamp.
- Introduced `AgentPrompt` model to manage instruction prompts associated with agent settings.
- Enhanced `AgentSettingsAdmin` to include inline management of prompts, improving the admin interface for better usability.
- Created migrations to reflect the updated model structure and ensure database integrity.

apps/agent/admin.py

@@ -1,61 +1,57 @@
+from django.contrib import admin
+from django.db import models 
 from django.shortcuts import redirect
 from django.urls import reverse
-from unfold.admin import ModelAdmin
-
+from unfold.admin import ModelAdmin, TabularInline 
 from utils.admin import dovoodi_admin_site, project_admin_site
-from apps.agent.models import AgentSettings
+from .models import AgentSettings, AgentPrompt
+from unfold.contrib.forms.widgets import WysiwygWidget
 
     
-class AgentSettingsAdmin(ModelAdmin):
-    """
-    Singleton Admin for Agent Configuration.
-    Acts as a 'Settings Page' by redirecting list view to the edit page of ID=1.
-    """
+class AgentPromptInline(TabularInline):
+    model = AgentPrompt
+    extra = 0
+    fields = ('is_active', 'content')
+
+    formfield_overrides = {
+        models.TextField: {
+            'widget': admin.widgets.AdminTextareaWidget(attrs={
+                # 1. REDUCE HEIGHT: Set rows to 1 or 2
+                'rows': 2,
+                
+                # 🎨 STYLING
+                # w-full: Fills the available space
+                # bg-black: Black background
+                # text-white: White text (Fixed typo from 'text-blacka')
+                # border-gray-600: Border color
+                # leading-normal: Adjusts line height for better vertical centering
+                'class': 'w-full p-2 border rounded-md bg-black text-white border-gray-600 focus:ring-primary-500 focus:border-primary-500 leading-normal',
+                
+                'placeholder': 'Enter instruction prompt here...',
+                
+                # 2. INCREASE WIDTH: 'min-width' forces the table cell to expand
+                'style': 'width: 100%; min-width: 600px; resize: vertical;' 
+            })
+        },
+    }
 
+class AgentSettingsAdmin(ModelAdmin):
     def has_add_permission(self, request):
-        # Disable 'Add' button to prevent creating multiple configs
         return False
 
     def has_delete_permission(self, request, obj=None):
-        # Disable 'Delete' button to ensure settings always exist
         return False
 
     def changelist_view(self, request, extra_context=None):
-        """
-        Redirect the 'List View' directly to the 'Edit View' of ID=1.
-        Auto-creates the default config if it doesn't exist.
-        """
-        # Ensure ID=1 exists
-        obj, created = self.model.objects.get_or_create(pk=1, defaults={
-            "system_prompt": "You are a helpful assistant.",
-        })
-
-        # Build the URL dynamically based on the registered admin site
+        obj, created = self.model.objects.get_or_create(pk=1)
         url = reverse(
             f"{self.admin_site.name}:{self.model._meta.app_label}_{self.model._meta.model_name}_change",
             args=[obj.pk]
         )
-
         return redirect(url)
 
-    fieldsets = (
-        ("Status", {
-            "fields": ("is_maintenance_mode",),
-            "classes": ("tab",),
-        }),
-        ("Brain (System Instructions)", {
-            "fields": ("system_prompt",),
-            "classes": ("tab",),
-            "description": "Define the core personality and rules for the AI Agent."
-        }),
-        ("Model Parameters", {
-            "fields": ("model_id", "temperature"),
-            "classes": ("tab",),
-            "description": "Technical settings for the inference engine."
-        }),
-    )
-
+    inlines = [AgentPromptInline]
 
-# Register with your custom admin site
+# Register
 dovoodi_admin_site.register(AgentSettings, AgentSettingsAdmin)
 project_admin_site.register(AgentSettings, AgentSettingsAdmin)

apps/agent/migrations/0002_alter_agentsettings_options_and_more.py

@@ -0,0 +1,56 @@
+# Generated by Django 4.2.27 on 2026-02-15 13:58
+
+from django.db import migrations, models
+import django.db.models.deletion
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('agent', '0001_initial'),
+    ]
+
+    operations = [
+        migrations.AlterModelOptions(
+            name='agentsettings',
+            options={'verbose_name': 'Agent Control Panel', 'verbose_name_plural': 'Agent Control Panel'},
+        ),
+        migrations.RemoveField(
+            model_name='agentsettings',
+            name='model_id',
+        ),
+        migrations.RemoveField(
+            model_name='agentsettings',
+            name='system_prompt',
+        ),
+        migrations.RemoveField(
+            model_name='agentsettings',
+            name='temperature',
+        ),
+        migrations.AddField(
+            model_name='agentsettings',
+            name='updated_at',
+            field=models.DateTimeField(auto_now=True),
+        ),
+        migrations.AlterField(
+            model_name='agentsettings',
+            name='is_maintenance_mode',
+            field=models.BooleanField(default=False, help_text='If checked, the agent will reply with a maintenance message.'),
+        ),
+        migrations.CreateModel(
+            name='AgentPrompt',
+            fields=[
+                ('id', models.BigAutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
+                ('title', models.CharField(help_text="Internal Label (e.g., 'Core Identity')", max_length=100)),
+                ('content', models.TextField(help_text='The actual instruction text.')),
+                ('is_active', models.BooleanField(default=True)),
+                ('order', models.PositiveIntegerField(default=0, help_text='Order of injection (1, 2, 3...)')),
+                ('settings', models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, related_name='prompts', to='agent.agentsettings')),
+            ],
+            options={
+                'verbose_name': 'System Instruction',
+                'verbose_name_plural': 'System Instructions',
+                'ordering': ['order'],
+            },
+        ),
+    ]

apps/agent/migrations/0003_alter_agentprompt_options_and_more.py

@@ -0,0 +1,38 @@
+# Generated by Django 4.2.27 on 2026-02-15 14:08
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('agent', '0002_alter_agentsettings_options_and_more'),
+    ]
+
+    operations = [
+        migrations.AlterModelOptions(
+            name='agentprompt',
+            options={},
+        ),
+        migrations.AlterModelOptions(
+            name='agentsettings',
+            options={'verbose_name': 'Agent Configuration', 'verbose_name_plural': 'Agent Configuration'},
+        ),
+        migrations.RemoveField(
+            model_name='agentprompt',
+            name='order',
+        ),
+        migrations.RemoveField(
+            model_name='agentprompt',
+            name='title',
+        ),
+        migrations.RemoveField(
+            model_name='agentsettings',
+            name='is_maintenance_mode',
+        ),
+        migrations.AlterField(
+            model_name='agentprompt',
+            name='content',
+            field=models.TextField(help_text='The instruction text.'),
+        ),
+    ]

apps/agent/models.py

@@ -1,25 +1,20 @@
 from django.db import models
 from django.core.cache import cache
 
-
 class AgentSettings(models.Model):
-    # Fixed Settings
-    system_prompt = models.TextField(default="You are a helpful assistant.")
-    model_id = models.CharField(max_length=50, default="deepseek/deepseek-r1")
-    temperature = models.FloatField(default=0.3)
-    
-    # Switches
-    is_maintenance_mode = models.BooleanField(default=False)
+    """
+    Singleton Container. 
+    Now just a wrapper to hold the list of prompts.
+    """
+    updated_at = models.DateTimeField(auto_now=True)
 
     class Meta:
         verbose_name = "Agent Configuration"
         verbose_name_plural = "Agent Configuration"
 
     def save(self, *args, **kwargs):
-        self.pk = 1
+        self.pk = 1 # Force Singleton
         super().save(*args, **kwargs)
-        
-        # Clear cache whenever you save
         cache.delete("agent_config_1")
 
     def __str__(self):
@@ -27,6 +22,24 @@ class AgentSettings(models.Model):
 
     @classmethod
     def load(cls):
-        """Helper to get the singleton instance, creating it if missing."""
         obj, created = cls.objects.get_or_create(pk=1)
         return obj
+
+
+class AgentPrompt(models.Model):
+    """
+    Simple Prompt Block.
+    Just text and a switch.
+    """
+    settings = models.ForeignKey(AgentSettings, on_delete=models.CASCADE, related_name="prompts")
+    
+    content = models.TextField(help_text="The instruction text.")
+    is_active = models.BooleanField(default=True)
+
+    def __str__(self):
+        # Display the first 50 chars as the name in admin
+        # if self.is_active:
+        #     return f"Active Prompt" if self.content else "Empty Prompt"
+        # else:
+        #     return f"Inactive Prompt: {self.content[:50]}..." if self.content else "Empty Prompt"
+        return ""