from django.db import models

class MediaTypes(models.Model):
     MEDIA_TYPES = [
          ('vg', 'Video Games'),
          ('mo', 'Movies'),
          ('tv', 'TV Shows'),
          ('bo', 'Books'),
     ]
     media_type = models.CharField(
          max_length=2,
          choices=MEDIA_TYPES,
          default='mo',
     )

class CommonMediaFields(models.Model):
     name = models.CharField('Title', maxlength=256)
     media_type = models.ForeignKey('MediaType')
     summary = models.TextField('Summary')
     release_date = models.DateField('Release Date')
     creation_date = models.DateTimeField('Added Date', auto_now_add=True)
     updated_date = models.DateTimeField('Updated Date', auto_now=True)
     original_language = models.CharField('Original Language')
     class Meta:
          abstract = True

class VideoFields(CommonFields):
     tmdb_id = models.PositiveIntegerField('TheMovieDB ID')
     imdb_id = models.PositiveIntegerField('IMDB ID')
     tmdb_rating = models.PositiveIntegerField('TheMovieDB rating', max_value=100)
     mc_rating = models.PositiveIntegerFrield('MetaCritic Rating', max_value=100)
     class Meta:
          abstract = True

class Genres(models.Model):
     media = models.ForeignKey('MediaTypes')
     genre = models.CharFields('Genre')

class MediaStatus(models.Model):
     media = models.ForeignKey('MediaTypes')
     status = models.CharFields('Status')