package pay

import (
	"context"
	"net/http"
	"time"
	"tyc-server/pkg/lzkit/lzUtils"

	"github.com/smartwalle/alipay/v3"

	"tyc-server/app/main/api/internal/svc"

	"github.com/zeromicro/go-zero/core/logx"
)

type AlipayCallbackLogic struct {
	logx.Logger
	ctx    context.Context
	svcCtx *svc.ServiceContext
}

func NewAlipayCallbackLogic(ctx context.Context, svcCtx *svc.ServiceContext) *AlipayCallbackLogic {
	return &AlipayCallbackLogic{
		Logger: logx.WithContext(ctx),
		ctx:    ctx,
		svcCtx: svcCtx,
	}
}

func (l *AlipayCallbackLogic) AlipayCallback(w http.ResponseWriter, r *http.Request) error {
	notification, err := l.svcCtx.AlipayService.HandleAliPaymentNotification(r)
	if err != nil {
		logx.Errorf("支付宝支付回调，%+v", err)
		return nil
	}
	order, findOrderErr := l.svcCtx.OrderModel.FindOneByOrderNo(l.ctx, notification.OutTradeNo)
	if findOrderErr != nil {
		logx.Errorf("支付宝支付回调，查找订单失败: %+v", findOrderErr)
		return nil
	}
	if order.Status != "pending" {
		alipay.ACKNotification(w)
		return nil
	}
	amount := lzUtils.ToAlipayAmount(order.Amount)
	// 确保订单金额和状态正确，防止重复更新
	if amount != notification.TotalAmount {
		logx.Errorf("支付宝支付回调，金额不一致")
		return nil
	}
	if order.Status != "pending" {
		w.WriteHeader(http.StatusOK)
		_, _ = w.Write([]byte("success")) // 确保只写入一次响应
		return nil
	}
	switch notification.TradeStatus {
	case alipay.TradeStatusSuccess:
		order.Status = "paid"
		order.PayTime = lzUtils.TimeToNullTime(time.Now())
	default:
		return nil
	}
	order.PlatformOrderId = lzUtils.StringToNullString(notification.TradeNo)
	if updateErr := l.svcCtx.OrderModel.UpdateWithVersion(l.ctx, nil, order); updateErr != nil {
		logx.Errorf("支付宝支付回调，修改订单信息失败: %+v", updateErr)
		return nil
	}
	if order.Status == "paid" {
		if asyncErr := l.svcCtx.AsynqService.SendQueryTask(order.Id); asyncErr != nil {
			logx.Errorf("异步任务调度失败: %v", asyncErr)
			return asyncErr
		}
	}
	alipay.ACKNotification(w)
	return nil
}