deliveryman-api/app/api/endpoints/wechat.py

from fastapi import APIRouter, Depends, Response, Request
from sqlalchemy.orm import Session
from app.models.database import get_db
from app.models.user import UserInfo,UserDB, PhoneLoginRequest, generate_user_code
from app.models.order import ShippingOrderDB, OrderStatus
from app.core.response import success_response, error_response, ResponseModel
from app.core.wechat import WeChatClient,generate_random_string
from app.core.security import create_access_token, set_jwt_cookie
from pydantic import BaseModel, Field
import json
import time
from datetime import datetime, timezone
from app.api.deps import get_current_user
from app.core.config import settings
import random
import string
from app.models.merchant_order import MerchantOrderDB, MerchantOrderStatus
from app.models.merchant_pay_order import MerchantPayOrderDB, MerchantPayOrderStatus
import enum
from app.core.point_manager import PointManager
from app.core.point_manager import PointRecordType

router = APIRouter()

class PhoneNumberRequest(BaseModel):
    login_code: str  # 登录凭证
    phone_code: str  # 手机号验证码
    referral_code: str = None  # 推荐码（可选）

class OrderType(str, enum.Enum):
    DELIVERY = "DELIVERY"       # 配送订单
    PRODUCT = "PRODUCT"        # 商品订单
    ONLINE_PAY = "ONLINE_PAY"  # 在线支付

class WechatPayRequest(BaseModel):
    """微信支付请求"""
    order_id: str
    order_type: OrderType = Field(..., description="订单类型")

@router.post("/phone-login", response_model=ResponseModel)
async def wechat_phone_login(
    request: PhoneNumberRequest,
    db: Session = Depends(get_db),
    response: Response = None
):
    """通过微信手机号登录/注册"""
    try:
        # 初始化微信客户端
        wechat = WeChatClient()
        
        # 获取用户 openid
        session_info = await wechat.code2session(request.login_code)
        openid = session_info["openid"]
        
        # 获取用户手机号
        phone_info = await wechat.get_phone_number(request.phone_code)
        
        if not phone_info:
            return error_response(code=400, message="获取手机号失败")
        
        # 打印调试信息
        print(f"获取到的手机号信息: {phone_info}")
        
        phone = phone_info['phone_number']
        if not phone:
            return error_response(code=400, message="手机号为空")
        
        # 查找或创建用户
        user = db.query(UserDB).filter(UserDB.phone == phone).first()
        if not user:
            # 生成用户编码
            user_code = generate_user_code(db)
            
            user = UserDB(
                nickname=f"蜂友{phone[-4:]}",
                phone=phone,
                user_code=user_code,
                referral_code=request.referral_code,
                openid=openid  # 保存 openid
            )
            db.add(user)
            db.flush()
            
            # 发放优惠券
            from app.api.endpoints.user import issue_register_coupons
            issue_register_coupons(db, user.userid)
            
            db.commit()
            db.refresh(user)
        else:
            # 更新现有用户的 openid
            user.openid = openid
            db.commit()
        
        # 创建访问令牌
        access_token = create_access_token(
            data={"phone": user.phone, "userid": user.userid}
        )
        
        # 设置JWT cookie
        if response:
            set_jwt_cookie(response, access_token)
        
        return success_response(
            message="登录成功",
            data={
                "user": UserInfo.model_validate(user),
                "access_token": access_token,
                "token_type": "bearer"
            }
        )
    except Exception as e:
        db.rollback()
        return error_response(code=500, message=f"登录失败: {str(e)}")

@router.post("/create-payment", response_model=ResponseModel)
async def create_payment(
    request: WechatPayRequest,
    db: Session = Depends(get_db),
    current_user: UserDB = Depends(get_current_user)
):
    """创建微信支付订单"""
    # 查询订单
    if request.order_type == OrderType.PRODUCT:
        order = db.query(MerchantOrderDB).filter(
            MerchantOrderDB.order_id == request.order_id,
            MerchantOrderDB.user_id == current_user.userid,
            MerchantOrderDB.status == MerchantOrderStatus.CREATED
        ).first()
        if not order:
            return error_response(code=404, message="订单不存在或状态不正确")
        amount = order.pay_amount
        description = "商家团购订单"
        
    elif request.order_type == OrderType.ONLINE_PAY:
        order = db.query(MerchantPayOrderDB).filter(
            MerchantPayOrderDB.order_id == request.order_id,
            MerchantPayOrderDB.user_id == current_user.userid,
            MerchantPayOrderDB.status == MerchantPayOrderStatus.UNPAID
        ).first()
        if not order:
            return error_response(code=404, message="订单不存在或状态不正确")
        amount = order.amount
        description = "商家在线买单"
    elif request.order_type == OrderType.DELIVERY:
        order = db.query(ShippingOrderDB).filter(
            ShippingOrderDB.orderid == request.order_id,
            ShippingOrderDB.userid == current_user.userid,
            ShippingOrderDB.status == OrderStatus.UNPAID
        ).first()
        if not order:
            return error_response(code=404, message="订单不存在或状态不正确")
        amount = order.final_amount
        description = "小区配送订单"
        
    else:
        return error_response(code=400, message="不支持的订单类型")

    try:
        # 初始化微信支付客户端
        wechat = WeChatClient()
        
        # 创建支付订单
        result = await wechat.create_jsapi_payment(
            openid=current_user.openid,
            out_trade_no=request.order_id,
            total_amount=int(float(amount) * 100),  # 转换为分
            description=description
        )
        
        if not result:
            return error_response(code=500, message="创建支付订单失败")
        
        return success_response(data={
            "prepay_id": result.get("prepay_id"),
            "payment_params": result.get("payment_params")
        })
        
    except Exception as e:
        return error_response(code=500, message=f"创建支付订单失败: {str(e)}")

@router.post("/payment/notify")
async def payment_notify(
    request: Request,
    db: Session = Depends(get_db)
):
    """微信支付回调通知"""
    try:
        # 初始化微信支付客户端
        wechat = WeChatClient()

        data = await wechat.verify_payment_notify(request)
        if not data:
            print(f"回调数据验证失败: {data}")
            return error_response(code=400, message="回调数据验证失败")
        
        print(f"回调数据验证成功: {data}")
        # 获取订单信息
        out_trade_no = data.get("out_trade_no")
        transaction_id = data.get("transaction_id")
        trade_state = data.get("trade_state")
        success_time = data.get("success_time")
        
        if not all([out_trade_no, transaction_id, trade_state]) or trade_state != "SUCCESS":
            return error_response(code=400, message="缺少必要的订单信息或支付未成功")
        
        # 判断订单类型并处理
        if out_trade_no.startswith('D'):  # 配送订单
            # 查询配送订单
            order = db.query(ShippingOrderDB).filter(
                ShippingOrderDB.orderid == out_trade_no
            ).first()
            
            if not order:
                return error_response(code=404, message="订单不存在")
            
            if trade_state == "SUCCESS":
                # 更新订单状态
                order.pay_status = True
                order.status = OrderStatus.COMPLETED  # 支付成功后状态为已完成
                order.transaction_id = transaction_id
                order.pay_time = datetime.fromisoformat(success_time.replace('Z', '+00:00'))
                
        elif out_trade_no.startswith("M"):  # 商家商品订单
            # 查询商户订单
            order = db.query(MerchantOrderDB).filter(
                MerchantOrderDB.order_id == out_trade_no
            ).first()
            
            if not order:
                return error_response(code=404, message="订单不存在")
            
            if trade_state == "SUCCESS":
                # 添加积分
                points = order.pay_amount * 10
                point_manager = PointManager(db)
                point_manager.add_points(order.user_id, points, f"订单完成，获得{settings.POINT_ALIAS} 奖励")

                # 更新订单状态
                order.pay_status = True
                order.status = MerchantOrderStatus.UNVERIFIED
                order.transaction_id = transaction_id
                order.pay_time = datetime.fromisoformat(success_time.replace('Z', '+00:00'))
                order.gift_points = points

        elif out_trade_no.startswith("P"):  # 商家在线买单
            order = db.query(MerchantPayOrderDB).filter(
                MerchantPayOrderDB.order_id == out_trade_no
            ).first()
            
            if not order:
                return error_response(code=404, message="订单不存在")
            
            if trade_state == "SUCCESS":
                # 添加积分
                points = order.amount * 10
                point_manager = PointManager(db)
                point_manager.add_points(order.user_id, points, f"订单完成，获得{settings.POINT_ALIAS} 奖励")

                # 更新订单状态
                order.pay_status = True
                order.status = MerchantPayOrderStatus.PAID
                order.transaction_id = transaction_id
                order.pay_time = datetime.fromisoformat(success_time.replace('Z', '+00:00'))
                order.gift_points = points
        
        else:
            return error_response(code=400, message="未知的订单类型")
        
        db.commit()
        
        # 返回成功
        return success_response(message="支付成功")
        
    except Exception as e:
        print(f"处理支付回调失败: {str(e)}")
        db.rollback()
        return error_response(code=500, message=f"处理支付回调失败: {str(e)}")

@router.post("/refund/notify")
async def refund_notify(
    request: Request,
    db: Session = Depends(get_db)
):
    """微信支付退款回调通知"""
    try:
        # 初始化微信支付客户端
        wechat = WeChatClient()

        data = await wechat.verify_payment_notify(request)
        if not data:
            print(f"退款回调数据验证失败: {data}")
            return error_response(code=400, message="回调数据验证失败")
        
        print(f"退款回调数据验证成功: {data}")
        
        # 获取退款信息
        out_trade_no = data.get("out_trade_no")  # 订单号
        refund_status = data.get("refund_status")
        success_time = data.get("success_time")
        
        if not all([out_trade_no, refund_status]) or refund_status != "SUCCESS":
            return error_response(code=400, message="缺少必要的退款信息或退款未成功")
        
        # 根据订单类型处理退款
        if out_trade_no.startswith('M'):  # 商家商品订单
            order = db.query(MerchantOrderDB).filter(
                MerchantOrderDB.order_id == out_trade_no,
                MerchantOrderDB.status == MerchantOrderStatus.REFUNDING
            ).first()
            
            if not order:
                return error_response(code=404, message="订单不存在或状态不正确")
            
            # 更新订单状态
            order.status = MerchantOrderStatus.REFUNDED
            
            # 扣除积分
            points = int(float(order.pay_amount) * 10)  # 按照支付金额计算积分
            point_manager = PointManager(db)
            point_manager.deduct_points(
                order.user_id,
                points,
                PointRecordType.CONSUME_RETURN,
                f"订单退款，扣除{settings.POINT_ALIAS}",
                order.order_id
            )
        
        elif out_trade_no.startswith('P'):  # 商家在线买单
            order = db.query(MerchantPayOrderDB).filter(
                MerchantPayOrderDB.order_id == out_trade_no,
                MerchantPayOrderDB.status == MerchantPayOrderStatus.REFUNDING
            ).first()
            
            if not order:
                return error_response(code=404, message="订单不存在或状态不正确")
            
            # 更新订单状态
            order.status = MerchantPayOrderStatus.REFUNDED
            
            # 扣除积分
            points = int(float(order.amount) * 10)  # 按照支付金额计算积分
            point_manager = PointManager(db)
            point_manager.deduct_points(
                order.user_id,
                points,
                PointRecordType.CONSUME_RETURN,
                f"订单退款，扣除{settings.POINT_ALIAS}",
                order.order_id
            )
        
        else:
            return error_response(code=400, message="不支持的订单类型")
        
        db.commit()
        return success_response(message="退款处理成功")
        
    except Exception as e:
        print(f"处理退款回调失败: {str(e)}")
        db.rollback()
        return error_response(code=500, message=f"处理退款回调失败: {str(e)}")