from fastapi import Depends
from sqlalchemy.ext.asyncio import AsyncSession

from app.core.db import get_async_db
from app.features.payment.order_service import PaymentOrderService
from app.features.payment.payment_config import PaymentConfig
from app.features.payment.payment_facade import PaymentService
from app.features.plan.deps import get_plan_service
from app.features.plan.service import PlanService

_payment_service = None


def get_payment_service() -> PaymentService:
    """统一支付门面（wechat/alipay），供 PaymentOrderService 与 startup 使用。"""
    global _payment_service
    if _payment_service is None:
        config = PaymentConfig.from_env()
        _payment_service = PaymentService(config)
    return _payment_service


def get_payment_order_service(
    db: AsyncSession = Depends(get_async_db),
    plan_service: PlanService = Depends(get_plan_service),
) -> PaymentOrderService:
    """Payment order facade: create_order, callbacks, list/status."""
    return PaymentOrderService(db=db, plan_service=plan_service)