from django.apps import AppConfig
from django.core.exceptions import ImproperlyConfigured


class AiConfig(AppConfig):
    default_auto_field = "django.db.models.BigAutoField"
    name = "apps.ai"

    def ready(self) -> None:
        # API 与 Celery Worker 都会在 Django 启动时经过这里。路由策略一旦配置错误就立即失败，
        # 避免两端带着不同或不可控的超时、重试规则继续运行。
        from .routing_policy import RoutingPolicyConfigurationError, load_model_routing_policy

        try:
            load_model_routing_policy()
        except RoutingPolicyConfigurationError as exc:
            raise ImproperlyConfigured(f"模型路由策略配置错误：{exc}") from exc