feat(finance): manage token plans and simplify recharge checkout

backend/app/services/finance_service.py

@@ -28,6 +28,23 @@ def _money(cents):
 
 
 class FinanceService:
+    @staticmethod
+    def list_token_plans(db):
+        rows = db.execute(text('SELECT id,name,amount,price,badge,"desc",virtual_product_id FROM token_plans ORDER BY price ASC')).fetchall()
+        return [dict(row._mapping) for row in rows]
+
+    @staticmethod
+    def update_token_plan(db, plan_id: str, *, amount: int, price: float, name: str, badge: str, desc: str):
+        if amount <= 0 or price < 0 or not name.strip():
+            raise FinanceServiceError("套餐名称、正数积分和非负价格不正确")
+        result = db.execute(text('''UPDATE token_plans SET name=:name,amount=:amount,price=:price,badge=:badge,"desc"=:desc WHERE id=:id'''), {
+            "id": plan_id, "name": name.strip()[:80], "amount": amount, "price": price,
+            "badge": badge.strip()[:80], "desc": desc.strip()[:200],
+        })
+        if result.rowcount == 0:
+            raise FinanceServiceError("充值套餐不存在", 404)
+        db.commit()
+
     @staticmethod
     def _tables_ready(db) -> bool:
         names = {