from django.contrib.auth.models import User
from django.db import models


class PodcastFeed(models.Model):
    user = models.ForeignKey(User, on_delete=models.CASCADE, related_name='podcast_feeds')
    rss_url = models.URLField(max_length=1000)
    title = models.CharField(max_length=300)
    description = models.TextField(blank=True)
    artwork_url = models.URLField(max_length=1000, blank=True)
    author = models.CharField(max_length=300, blank=True)
    link = models.URLField(max_length=1000, blank=True)
    last_refreshed_at = models.DateTimeField(null=True, blank=True)
    added_at = models.DateTimeField(auto_now_add=True)
    auto_queue = models.BooleanField(default=False)

    class Meta:
        unique_together = ('user', 'rss_url')
        ordering = ['title']

    def __str__(self):
        return self.title


class PodcastEpisode(models.Model):
    feed = models.ForeignKey(PodcastFeed, on_delete=models.CASCADE, related_name='episodes')
    guid = models.CharField(max_length=1000)
    title = models.CharField(max_length=500)
    description = models.TextField(blank=True)
    audio_url = models.URLField(max_length=1000)
    duration_seconds = models.IntegerField(default=0)
    pub_date = models.DateTimeField(null=True, blank=True)
    episode_number = models.IntegerField(null=True, blank=True)
    season_number = models.IntegerField(null=True, blank=True)
    artwork_url = models.URLField(max_length=1000, blank=True)
    discovered_at = models.DateTimeField(auto_now_add=True)

    class Meta:
        unique_together = ('feed', 'guid')
        ordering = ['-pub_date']

    def __str__(self):
        return self.title


class EpisodeProgress(models.Model):
    user = models.ForeignKey(User, on_delete=models.CASCADE, related_name='episode_progress')
    episode = models.ForeignKey(PodcastEpisode, on_delete=models.CASCADE, related_name='progress')
    position_seconds = models.IntegerField(default=0)
    played = models.BooleanField(default=False)
    dismissed = models.BooleanField(default=False)
    updated_at = models.DateTimeField(auto_now=True)

    class Meta:
        unique_together = ('user', 'episode')
        ordering = ['-updated_at']

    def __str__(self):
        return f'{self.user} - {self.episode}'


class PodcastQueue(models.Model):
    user = models.ForeignKey(User, on_delete=models.CASCADE, related_name='podcast_queue')
    episode = models.ForeignKey(PodcastEpisode, on_delete=models.CASCADE, related_name='queued_by')
    position = models.PositiveIntegerField(default=0)
    added_at = models.DateTimeField(auto_now_add=True)

    class Meta:
        unique_together = ('user', 'episode')
        ordering = ['position']

    def __str__(self):
        return f'{self.user} queue pos {self.position}: {self.episode}'