from django.db import models
from django.db.models.signals import pre_delete
from django.dispatch import receiver
from .tasks import create_hls_tasks

# Create your models here.
VIDEO_GENDER = (
    (1, "male"),
    (2, "female"),
    (3, "anything goes"),
)

class Video(models.Model):
    created_at = models.DateTimeField(auto_now_add=True)
    updated_at = models.DateTimeField(auto_now=True)
    video_file = models.FileField(upload_to='videos/', null=True, verbose_name="")
    gender = models.PositiveSmallIntegerField(
      choices=VIDEO_GENDER
    )
    
    def __str__(self):
        return  str(self.video_file)

    def save(self, **kwargs):
        super(Video, self).save(**kwargs)
        filename = self.video_file.name
        create_hls_tasks.delay(filename)

    
    
class ExerciseVideo(models.Model):
    created_at = models.DateTimeField(auto_now_add=True)
    updated_at = models.DateTimeField(auto_now=True)
    video_file = models.FileField(upload_to='videos/', null=True, verbose_name="")

    def save(self, **kwargs):
        super(ExerciseVideo, self).save(**kwargs)
        filename = self.video_file.name
        create_hls_tasks.delay(filename)

@receiver(pre_delete, sender=ExerciseVideo)
def delete_exercise_video(sender, instance, using, **kwargs):
    video_file = instance.video_file
    video_file.delete(save=False)