package pay

import (
	"context"
	"yunyan/comm"
	"yunyan/lego/sys/log"
	"yunyan/pb"
	"yunyan/sys/pay/appleiap"
	"yunyan/sys/pay/googleiap"
	"yunyan/sys/pay/paypal"
	"fmt"
	"strings"
	"time"
)

// @Summary 验证订单
// @Description 验证支付订单是否有效
// @Tags User
// @Accept  json
// @Produce  json
// @Security BearerAuth
// @Param user body pb.PayAskOrCancelReq true "发送绑定请求"
// @Success 200 {object} comm.HttpResult{data=pb.PayPayOrderAskResp} "成功返回"
// @Router /api/home/pay_verifyorder [post]
func (this *apiComp) VerifyOrder(session comm.IUserSession, req *pb.PayAskOrCancelReq) (resp *pb.PayPayOrderAskResp, errdata *pb.ErrorData) {
	var (
		model *pb.DBPayOrder
		user  *pb.DBUser
		err   error
	)
	if req.Orderid == "" {
		if orders, _, err0 := this.module.model.getUserPayOrders(session.GetUserId(), 1, 50); err0 == nil {
			for _, o := range orders {
				if o.Status == pb.PayOrderStatus_PAY_ORDER_PENDING {
					req.Orderid = o.OrderId
					break
				}
			}
		}
	}

	// 查询订单
	if model, err = this.module.model.getPayOrder(req.Orderid); err != nil {
		errdata = &pb.ErrorData{
			Code:    pb.ErrorCode_PayOrderNotFound,
			Message: "查询订单失败:" + fmt.Sprintf("%v", err),
		}
		return
	}
	// 查询用户
	if user, err = this.module.model.getUser(session.GetUserId()); err != nil {
		errdata = &pb.ErrorData{
			Code:    pb.ErrorCode_DBError,
			Message: "查询用户失败:" + fmt.Sprintf("%v", err),
		}
		return
	}
	this.module.Debug("VerifyOrder", log.Field{Key: "order", Value: model})
	// Google/Apple 主动查询与校验：仅在订单未支付时进行
	if model.Status == pb.PayOrderStatus_PAY_ORDER_PENDING {
		ctx, cancel := context.WithTimeout(context.Background(), 8*time.Second)
		defer cancel()

		// PayPal 主动执行 capture 扣款
		if model.PaymentMethod == pb.PaymentMethod_PayPal {
			if model.TransactionId == "" {
				errdata = &pb.ErrorData{Code: pb.ErrorCode_PayOrderNotFound, Message: "缺少 PayPal 订单号，无法执行 capture"}
				return
			}
			captureJSON, err := paypal.CaptureOrder(ctx, model.TransactionId)
			if err != nil {
				if this.module.analyze != nil {
					this.module.analyze.Report(&comm.StatEvent{Type: comm.StatEventOrderFailed, Uid: model.Uid})
				}
				errdata = &pb.ErrorData{Code: pb.ErrorCode_PayCreateOrderFail, Message: "PayPal capture 失败:" + fmt.Sprintf("%v", err)}
				return
			}
			// 简单判定：返回中包含 status=COMPLETED 视为支付成功
			if !strings.Contains(captureJSON, "\"status\":\"COMPLETED\"") {
				if this.module.analyze != nil {
					this.module.analyze.Report(&comm.StatEvent{Type: comm.StatEventOrderFailed, Uid: model.Uid})
				}
				errdata = &pb.ErrorData{Code: pb.ErrorCode_PayCreateOrderFail, Message: "PayPal capture 未完成"}
				return
			}
			// 扣款成功，更新订单并发放资源
			model.Status = pb.PayOrderStatus_PAY_ORDER_PAID
			model.PayTime = time.Now().Unix()
			if err = this.deliverResourceByOrder(user, model); err != nil {
				errdata = &pb.ErrorData{Code: pb.ErrorCode_ResourceDeliveryError, Message: "发放资源失败:" + fmt.Sprintf("%v", err)}
				return
			}
			if err = this.module.model.updatePayOrder(model); err != nil {
				errdata = &pb.ErrorData{Code: pb.ErrorCode_PayOrderStatusError, Message: "更新订单状态失败:" + fmt.Sprintf("%v", err)}
				return
			}
		}

		// Apple IAP 主动校验
		if model.PaymentMethod == pb.PaymentMethod_AppleIAP {
			if req.AppleReceiptData == "" {
				errdata = &pb.ErrorData{Code: pb.ErrorCode_ReqParameterError, Message: "缺少苹果收据数据或交易ID"}
				return
			}
			var ok bool
			if req.AppleUseTransactionId {
				ok, err = appleiap.VerifyTransaction(ctx, req.AppleReceiptData)
			} else {
				ok, err = appleiap.VerifyReceipt(ctx, req.AppleReceiptData)
			}
			if err != nil || !ok {
				if this.module.analyze != nil {
					this.module.analyze.Report(&comm.StatEvent{Type: comm.StatEventOrderFailed, Uid: model.Uid})
				}
				errdata = &pb.ErrorData{Code: pb.ErrorCode_PayNotifyDecryptFail, Message: "Apple IAP 校验失败:" + fmt.Sprintf("%v", err)}
				return
			}
			// 校验通过，更新订单并发放资源
			model.Status = pb.PayOrderStatus_PAY_ORDER_PAID
			model.PayTime = time.Now().Unix()
			if err = this.deliverResourceByOrder(user, model); err != nil {
				errdata = &pb.ErrorData{Code: pb.ErrorCode_ResourceDeliveryError, Message: "发放资源失败:" + fmt.Sprintf("%v", err)}
				return
			}
			if err = this.module.model.updatePayOrder(model); err != nil {
				errdata = &pb.ErrorData{Code: pb.ErrorCode_PayOrderStatusError, Message: "更新订单状态失败:" + fmt.Sprintf("%v", err)}
				return
			}
		}

		// Google IAP 主动校验
		if model.PaymentMethod == pb.PaymentMethod_GoogleIAP {
			if req.GooglePackageName == "" || req.GoogleProductId == "" || req.GooglePurchaseToken == "" {
				errdata = &pb.ErrorData{Code: pb.ErrorCode_ReqParameterError, Message: "缺少谷歌校验所需参数"}
				return
			}
			var ok bool
			if req.GoogleIsSubscription {
				ok, err = googleiap.VerifySubscriptionPurchase(ctx, req.GooglePackageName, req.GoogleProductId, req.GooglePurchaseToken)
			} else {
				ok, err = googleiap.VerifyProductPurchase(ctx, req.GooglePackageName, req.GoogleProductId, req.GooglePurchaseToken)
			}
			if err != nil || !ok {
				if this.module.analyze != nil {
					this.module.analyze.Report(&comm.StatEvent{Type: comm.StatEventOrderFailed, Uid: model.Uid})
				}
				errdata = &pb.ErrorData{Code: pb.ErrorCode_PayNotifyDecryptFail, Message: "Google IAP 校验失败:" + fmt.Sprintf("%v", err)}
				return
			}
			// 校验通过，更新订单并发放资源
			model.Status = pb.PayOrderStatus_PAY_ORDER_PAID
			model.PayTime = time.Now().Unix()
			if err = this.deliverResourceByOrder(user, model); err != nil {
				errdata = &pb.ErrorData{Code: pb.ErrorCode_ResourceDeliveryError, Message: "发放资源失败:" + fmt.Sprintf("%v", err)}
				return
			}
			if err = this.module.model.updatePayOrder(model); err != nil {
				errdata = &pb.ErrorData{Code: pb.ErrorCode_PayOrderStatusError, Message: "更新订单状态失败:" + fmt.Sprintf("%v", err)}
				return
			}
		}
	} else if model.Status == pb.PayOrderStatus_PAY_ORDER_PAID {
		this.module.Debug("VerifyOrder 已经完成", log.Field{Key: "order", Value: model})
	}
	resp = &pb.PayPayOrderAskResp{
		Order: model,
		User:  user,
	}
	return
}