from django.db import models
from django.utils.translation import gettext_lazy as _
from dj_language.field import LanguageField
from django.core.validators import RegexValidator


class Comment(models.Model):
    """
    Comment model that stores user information directly
    """
    # User information
    user_avatar = models.ImageField(
        upload_to='comments/avatars/%Y/%m/', 
        null=True, 
        blank=True, 
        verbose_name=_('User Avatar')
    )
    user_fullname = models.CharField(
        max_length=255, 
        verbose_name=_('User Full Name'),
        help_text=_('Full name of the user who made the comment')
    )
    user_slogan = models.CharField(
        max_length=500, 
        null=True, 
        blank=True, 
        verbose_name=_('User Slogan'),
        help_text=_('User slogan or bio')
    )
    
    # Comment content
    comment_text = models.TextField(
        verbose_name=_('Comment Text'),
        help_text=_('The actual comment content')
    )
    language = LanguageField(null=True)
    # Ordering and timestamps
    order = models.PositiveIntegerField(
        default=0, 
        verbose_name=_('Order'),
        help_text=_('Order for sorting comments')
    )
    created_at = models.DateTimeField(
        auto_now_add=True, 
        verbose_name=_('Created At')
    )
    
    class Meta:
        ordering = ['order', '-created_at']
        verbose_name = _('Comment')
        verbose_name_plural = _('Comments')
    
    def __str__(self):
        return f"{self.user_fullname}: {self.comment_text[:50]}..."
    
    
class AppVersion(models.Model):
    """
    Model for storing app versions with APK files and descriptions
    """
    class AppType(models.TextChoices):
        GOOGLE_PLAY = 'google_play', _('Google Play')
        APP_STORE = 'app_store', _('App Store')
    version = models.CharField(
        max_length=20,
        unique=True,
        validators=[
            RegexValidator(
                regex=r'^\d+\.\d+\.\d+$',
                message='Version must be in format X.Y.Z (e.g., 1.0.0)'
            )
        ],
        verbose_name=_('Version'),
        help_text=_('Application version in format X.Y.Z (e.g., 1.0.0)')
    )

    apk_file = models.FileField(
        upload_to='app_versions/',
        verbose_name=_('APK File'),
        help_text=_('Application APK file')
    )

    description = models.TextField(
        verbose_name=_('Description'),
        help_text=_('Release notes and changes for this version'),
        blank=True
    )

    app_type = models.CharField(
        max_length=20,
        choices=AppType.choices,
        default=AppType.GOOGLE_PLAY,
        verbose_name=_('App Type'),
        help_text=_('App distribution platform')
    )

    app_store_downloads = models.PositiveBigIntegerField(
        default=0,
        verbose_name=_('App Store Downloads'),
        help_text=_('Total number of downloads on Apple App Store')
    )

    google_play_downloads = models.PositiveBigIntegerField(
        default=0,
        verbose_name=_('Google Play Downloads'),
        help_text=_('Total number of downloads on Google Play')
    )

    is_active = models.BooleanField(
        default=True,
        verbose_name=_('Active'),
        help_text=_('Is this version active?')
    )

    created_at = models.DateTimeField(
        auto_now_add=True,
        verbose_name=_('Created At')
    )

    updated_at = models.DateTimeField(
        auto_now=True,
        verbose_name=_('Updated At')
    )

    class Meta:
        verbose_name = _('App Version')
        verbose_name_plural = _('App Versions')
        ordering = ['-created_at']

    def __str__(self):
        return f'Version {self.version}'

    @classmethod
    def get_latest_active(cls):
        """
        Get the latest active version
        """
        return cls.objects.filter(is_active=True).order_by('-created_at').first()