from django.db import models

from events.models import Event


class GameQuerySet(models.QuerySet):
    def enabled_for_event(self, event):
        return self.filter(event_games__event=event, event_games__enabled=True)


class Game(models.Model):
    steam_app_id = models.PositiveIntegerField(null=True, blank=True)
    name = models.CharField(max_length=255)
    path = models.CharField(max_length=100)
    custom_path = models.BooleanField(default=False)
    image = models.URLField(null=True, blank=True)
    description = models.TextField(blank=True, default="")

    created_at = models.DateTimeField(auto_now_add=True)
    updated_at = models.DateTimeField(auto_now=True)

    objects = models.Manager.from_queryset(GameQuerySet)()

    class Meta:
        ordering = ["name"]

    def __str__(self) -> str:
        if self.steam_app_id:
            return f"{self.name} ({self.steam_app_id})"
        return self.name


class EventGame(models.Model):
    event = models.ForeignKey(
        Event,
        on_delete=models.CASCADE,
        related_name="event_games",
    )
    game = models.ForeignKey(
        Game,
        on_delete=models.CASCADE,
        related_name="event_games",
    )
    enabled = models.BooleanField(default=True)

    apibot_token = models.CharField(
        max_length=512,
        blank=True,
        null=True,
        help_text=(
            "Bearer token for the legacy PolyLAN AAndT API (from the AAndT's "
            "'apibot' admin page), used to auto-sync Scopes and their assigned users."
        ),
    )

    class Meta:
        constraints = [
            models.UniqueConstraint(
                fields=["event", "game"],
                name="unique_event_game",
            ),
        ]

    def __str__(self) -> str:
        return f"{self.game.name} @ {self.event.name} ({'enabled' if self.enabled else 'disabled'})"