"""
Social models - Social media monitoring and sentiment analysis

This module implements social media monitoring that:
- Tracks mentions across platforms
- Analyzes sentiment
- Creates PX actions for negative mentions
- Monitors brand reputation
"""
from django.db import models

from apps.core.models import TimeStampedModel, UUIDModel


class SocialPlatform(models.TextChoices):
    """Social media platform choices"""
    TWITTER = 'twitter', 'Twitter/X'
    FACEBOOK = 'facebook', 'Facebook'
    INSTAGRAM = 'instagram', 'Instagram'
    LINKEDIN = 'linkedin', 'LinkedIn'
    YOUTUBE = 'youtube', 'YouTube'
    TIKTOK = 'tiktok', 'TikTok'
    OTHER = 'other', 'Other'


class SentimentType(models.TextChoices):
    """Sentiment analysis result choices"""
    POSITIVE = 'positive', 'Positive'
    NEUTRAL = 'neutral', 'Neutral'
    NEGATIVE = 'negative', 'Negative'


class SocialMention(UUIDModel, TimeStampedModel):
    """
    Social media mention - tracks mentions of hospital/brand.
    
    Negative sentiment triggers PX action creation.
    """
    # Platform and source
    platform = models.CharField(
        max_length=50,
        choices=SocialPlatform.choices,
        db_index=True
    )
    post_url = models.URLField(max_length=1000)
    post_id = models.CharField(
        max_length=200,
        unique=True,
        db_index=True,
        help_text="Unique post ID from platform"
    )
    
    # Author information
    author_username = models.CharField(max_length=200)
    author_name = models.CharField(max_length=200, blank=True)
    author_followers = models.IntegerField(null=True, blank=True)
    
    # Content
    content = models.TextField()
    content_ar = models.TextField(blank=True, help_text="Arabic translation if applicable")
    
    # Organization
    hospital = models.ForeignKey(
        'organizations.Hospital',
        on_delete=models.CASCADE,
        null=True,
        blank=True,
        related_name='social_mentions'
    )
    department = models.ForeignKey(
        'organizations.Department',
        on_delete=models.SET_NULL,
        null=True,
        blank=True,
        related_name='social_mentions'
    )
    
    # Sentiment analysis
    sentiment = models.CharField(
        max_length=20,
        choices=SentimentType.choices,
        null=True,
        blank=True,
        db_index=True
    )
    sentiment_score = models.DecimalField(
        max_digits=5,
        decimal_places=2,
        null=True,
        blank=True,
        help_text="Sentiment score (-1 to 1, or 0-100 depending on AI service)"
    )
    sentiment_analyzed_at = models.DateTimeField(null=True, blank=True)
    
    # Engagement metrics
    likes_count = models.IntegerField(default=0)
    shares_count = models.IntegerField(default=0)
    comments_count = models.IntegerField(default=0)
    
    # Timestamps
    posted_at = models.DateTimeField(db_index=True)
    collected_at = models.DateTimeField(auto_now_add=True)
    
    # Response tracking
    responded = models.BooleanField(default=False)
    response_text = models.TextField(blank=True)
    responded_at = models.DateTimeField(null=True, blank=True)
    responded_by = models.ForeignKey(
        'accounts.User',
        on_delete=models.SET_NULL,
        null=True,
        blank=True,
        related_name='social_responses'
    )
    
    # Action tracking
    action_created = models.BooleanField(default=False)
    px_action = models.ForeignKey(
        'px_action_center.PXAction',
        on_delete=models.SET_NULL,
        null=True,
        blank=True,
        related_name='social_mentions'
    )
    
    # Metadata
    metadata = models.JSONField(default=dict, blank=True)
    
    class Meta:
        ordering = ['-posted_at']
        indexes = [
            models.Index(fields=['platform', '-posted_at']),
            models.Index(fields=['sentiment', '-posted_at']),
            models.Index(fields=['hospital', 'sentiment', '-posted_at']),
        ]
    
    def __str__(self):
        return f"{self.platform} - {self.author_username} - {self.posted_at.strftime('%Y-%m-%d')}"