from fastapi import APIRouter, Depends from sqlalchemy.orm import Session from typing import List, Optional from app.models.coupon import ( CouponDB, UserCouponDB, CouponCreate, CouponUpdate, CouponInfo, UserCouponCreate, UserCouponInfo, CouponStatus, CouponIssueRecordDB, CouponIssueRecordCreate, CouponIssueRecordInfo ) from app.models.database import get_db from app.api.deps import get_admin_user, get_current_user from app.models.user import UserDB from app.core.response import success_response, error_response, ResponseModel from datetime import datetime, timezone from app.core.coupon_manager import CouponManager router = APIRouter() @router.post("", response_model=ResponseModel) async def create_coupon( coupon: CouponCreate, db: Session = Depends(get_db), admin: UserDB = Depends(get_admin_user) ): """创建优惠券（管理员）""" db_coupon = CouponDB(**coupon.model_dump()) db.add(db_coupon) try: db.commit() db.refresh(db_coupon) return success_response(data=CouponInfo.model_validate(db_coupon)) except Exception as e: db.rollback() return error_response(code=500, message=f"创建优惠券失败: {str(e)}") @router.put("/{coupon_id}/use", response_model=ResponseModel) async def use_coupon( coupon_id: int, db: Session = Depends(get_db), current_user: UserDB = Depends(get_current_user) ): """ 使用优惠券 """ coupon = db.query(UserCouponDB).filter( UserCouponDB.id == coupon_id, UserCouponDB.user_id == current_user.userid, UserCouponDB.status == CouponStatus.UNUSED, UserCouponDB.expire_time > datetime.now() ).first() if not coupon: return error_response(code=404, message="优惠券不存在") coupon.status = CouponStatus.USED coupon.used_time = datetime.now() db.commit() return success_response(data=UserCouponInfo.model_validate(coupon)) @router.put("/{coupon_id}", response_model=ResponseModel) async def update_coupon( coupon_id: int, coupon: CouponUpdate, db: Session = Depends(get_db), admin: UserDB = Depends(get_admin_user) ): """更新优惠券（管理员）""" db_coupon = db.query(CouponDB).filter(CouponDB.id == coupon_id).first() if not db_coupon: return error_response(code=404, message="优惠券不存在") update_data = coupon.model_dump(exclude_unset=True) for key, value in update_data.items(): setattr(db_coupon, key, value) try: db.commit() db.refresh(db_coupon) return success_response(data=CouponInfo.model_validate(db_coupon)) except Exception as e: db.rollback() return error_response(code=500, message=f"更新优惠券失败: {str(e)}") @router.post("/issue", response_model=ResponseModel) async def issue_coupon( user_coupon: UserCouponCreate, db: Session = Depends(get_db), admin: UserDB = Depends(get_admin_user) ): """发放优惠券给用户（管理员）""" # 查询优惠券信息 coupon = db.query(CouponDB).filter(CouponDB.id == user_coupon.coupon_id).first() if not coupon: return error_response(code=404, message="优惠券不存在") # 查询用户信息 user = db.query(UserDB).filter(UserDB.userid == user_coupon.user_id).first() if not user: return error_response(code=404, message="用户不存在") # 创建发放记录 issue_record = CouponIssueRecordDB( coupon_id=coupon.id, user_id=user_coupon.user_id, operator_id=admin.userid, count=user_coupon.count, remark=f"{admin.nickname}: {user_coupon.remark}" if user_coupon.remark else f"{admin.nickname} 手动发放" ) db.add(issue_record) # 批量创建用户优惠券 user_coupons = [] for _ in range(user_coupon.count): user_coupon_obj = UserCouponDB( user_id=user_coupon.user_id, coupon_id=coupon.id, coupon_name=coupon.name, coupon_amount=coupon.amount, coupon_type=coupon.coupon_type, expire_time=user_coupon.expire_time ) db.add(user_coupon_obj) user_coupons.append(user_coupon_obj) try: db.commit() db.refresh(issue_record) return success_response( message=f"成功发放 {user_coupon.count} 张优惠券", data={ "issue_record": CouponIssueRecordInfo( id=issue_record.id, coupon_id=issue_record.coupon_id, user_id=issue_record.user_id, operator_id=issue_record.operator_id, count=issue_record.count, issue_time=issue_record.issue_time, remark=issue_record.remark, coupon_name=coupon.name, user_nickname=user.nickname, operator_nickname=admin.nickname ), "coupon_count": len(user_coupons) } ) except Exception as e: db.rollback() return error_response(code=500, message=f"发放优惠券失败: {str(e)}") @router.get("/user/list", response_model=ResponseModel) async def get_user_coupons( skip: int = 0, limit: int = 10, status: Optional[CouponStatus] = None, db: Session = Depends(get_db), current_user: UserDB = Depends(get_current_user) ): """获取用户的优惠券列表""" query = db.query(UserCouponDB).filter( UserCouponDB.user_id == current_user.userid ) # 如果指定了状态，添加状态过滤 if status: query = query.filter(UserCouponDB.status == status) # 更新过期状态 now = datetime.now(timezone.utc) db.query(UserCouponDB).filter( UserCouponDB.user_id == current_user.userid, UserCouponDB.status == CouponStatus.UNUSED, UserCouponDB.expire_time < now ).update({"status": CouponStatus.EXPIRED}) db.commit() # 获取分页数据 coupons = query.order_by( UserCouponDB.create_time.desc() ).offset(skip).limit(limit).all() return success_response( data=[UserCouponInfo.model_validate(c) for c in coupons] ) @router.get("/list", response_model=ResponseModel) async def get_all_coupons( skip: int = 0, limit: int = 10, db: Session = Depends(get_db), admin: UserDB = Depends(get_admin_user) ): """获取所有优惠券列表（管理员）""" query = db.query(CouponDB).order_by( CouponDB.create_time.desc() ) total = query.count() items = query.offset(skip).limit(limit).all() return success_response( data={ "total": total, "items": [CouponInfo.model_validate(c) for c in items] } ) @router.get("/issue/records", response_model=ResponseModel) async def get_issue_records( skip: int = 0, limit: int = 10, coupon_id: Optional[int] = None, user_id: Optional[int] = None, db: Session = Depends(get_db), admin: UserDB = Depends(get_admin_user) ): """获取优惠券发放记录（管理员）""" query = db.query(CouponIssueRecordDB) # 添加过滤条件 if coupon_id: query = query.filter(CouponIssueRecordDB.coupon_id == coupon_id) if user_id: query = query.filter(CouponIssueRecordDB.user_id == user_id) # 计算总数 total = query.count() # 获取数据 records = query.order_by( CouponIssueRecordDB.issue_time.desc() ).offset(skip).limit(limit).all() # 构建响应数据 result = [] for record in records: # 获取关联信息 coupon = db.query(CouponDB).filter(CouponDB.id == record.coupon_id).first() user = db.query(UserDB).filter(UserDB.userid == record.user_id).first() operator = db.query(UserDB).filter(UserDB.userid == record.operator_id).first() record_info = CouponIssueRecordInfo( id=record.id, coupon_id=record.coupon_id, user_id=record.user_id, operator_id=record.operator_id, count=record.count, issue_time=record.issue_time, remark=record.remark, coupon_name=coupon.name if coupon else None, user_nickname=user.nickname if user else None, operator_nickname=operator.nickname if operator else None ) result.append(record_info) return success_response( data={ "total": total, "items": result } )