package logic

import (
	"encoding/json"
	"errors"
	"fmt"
	"fusenapi/constants"
	"fusenapi/model/gmodel"
	"fusenapi/service/repositories"
	"fusenapi/utils/auth"
	"fusenapi/utils/basic"
	"time"

	"context"

	"fusenapi/server/pay/internal/svc"
	"fusenapi/server/pay/internal/types"

	"github.com/stripe/stripe-go/v74"
	"github.com/stripe/stripe-go/v74/webhook"
	"github.com/zeromicro/go-zero/core/logc"
	"github.com/zeromicro/go-zero/core/logx"
)

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

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

// 处理进入前逻辑w,r
// func (l *StripeWebhookLogic) BeforeLogic(w http.ResponseWriter, r *http.Request) {

// }

// 处理逻辑后 w,r 如:重定向, resp 必须重新处理
// func (l *StripeWebhookLogic) AfterLogic(w http.ResponseWriter, r *http.Request, resp *basic.Response) {
// // httpx.OkJsonCtx(r.Context(), w, resp)
// }

func (l *StripeWebhookLogic) StripeWebhook(req *types.StripeWebhookReq, userinfo *auth.UserInfo) (resp *basic.Response) {
	// 返回值必须调用Set重新返回, resp可以空指针调用 resp.SetStatus(basic.CodeOK, data)
	// userinfo 传入值时, 一定不为null

	stripe.Key = l.svcCtx.Config.PayConfig.Stripe.Key
	event := stripe.Event{}

	if err := json.Unmarshal(req.Payload, &event); err != nil {
		logc.Errorf(l.ctx, "StripeWebhookLogic StripeWebhook Unmarshal err:%v", err)
		return resp.SetStatusWithMessage(basic.CodeAesCbcDecryptionErr, "pay notify Unmarshal fail")
	}

	endpointSecret := l.svcCtx.Config.PayConfig.Stripe.EndpointSecret
	signatureHeader := req.StripeSignature
	event, err := webhook.ConstructEvent(req.Payload, signatureHeader, endpointSecret)
	if err != nil {
		logx.Error(err)
		return resp.SetStatusWithMessage(basic.CodeAesCbcDecryptionErr, "Webhook signature verification failed")
	}

	// 支付回调事件日志
	var payMethod = int64(constants.PAYMETHOD_STRIPE)
	var nowTime = time.Now().UTC()
	var eventData = []byte(event.Data.Raw)
	l.HandlePayEventCreate(&gmodel.FsOrderTradeEvent{
		PayMethod: &payMethod,
		EventId:   &event.ID,
		EventType: &event.Type,
		EventData: &eventData,
		Ctime:     &nowTime,
	})

	// Unmarshal the event data into an appropriate struct depending on its Type
	switch event.Type {
	case "charge.succeeded":
		// var charge stripe.Charge
		// err := json.Unmarshal(event.Data.Raw, &charge)
		// if err != nil {
		// 	logx.Error(err)
		// 	return resp.SetStatusWithMessage(basic.CodeAesCbcDecryptionErr, "pay notify Unmarshal fail event.Type charge.succeeded")
		// }

	case "checkout.session.completed":
		// checkout checkout.session.completed 处理逻辑
		// var session stripe.CheckoutSession
		// err := json.Unmarshal(event.Data.Raw, &session)
		// if err != nil {
		// 	logx.Error(err)
		// 	return resp.SetStatusWithMessage(basic.CodeAesCbcDecryptionErr, "pay notify Unmarshal fail event.Type payment_intent.succeeded")
		// }
		// fmt.Println("checkout.session.completed")
		// err = l.handlePaymentSessionCompleted(session.ID, session.PaymentIntent.ID)
		// if err != nil {
		// 	return resp.SetStatusWithMessage(basic.CodeAesCbcDecryptionErr, "checkout.session.completed fail")
		// }
	case "payment_intent.succeeded":
		var paymentIntent stripe.PaymentIntent
		err := json.Unmarshal(event.Data.Raw, &paymentIntent)
		if err != nil {
			logx.Errorf("err：%+v，desc：%s", err, "pay notify Unmarshal fail event.Type payment_intent.succeeded")
			return resp.SetStatusWithMessage(basic.CodeAesCbcDecryptionErr, "pay notify Unmarshal fail event.Type payment_intent.succeeded")
		}
		err = l.HandlePaymentIntentSucceeded(&paymentIntent, event.ID)
		if err != nil {
			logx.Errorf("err：%+v，desc：%s", err, "pay notify handle payment_intent.succeeded")
			return resp.SetStatusWithMessage(basic.CodePaybackNotOk, "pay notify handle payment_intent.succeeded")
		}
	case "payment_method.attached":
		var paymentMethod stripe.PaymentMethod
		err := json.Unmarshal(event.Data.Raw, &paymentMethod)
		if err != nil {
			logx.Error(err)
			return resp.SetStatusWithMessage(basic.CodeAesCbcDecryptionErr, "pay notify Unmarshal fail event.Type payment_method.attached")
		}
	case "charge.refunded":
		var chargeRefunded stripe.Charge
		err := json.Unmarshal(event.Data.Raw, &chargeRefunded)
		if err != nil {
			logx.Errorf("err：%+v，desc：%s", err, "pay notify Unmarshal fail event.Type charge.refunded")
			return resp.SetStatusWithMessage(basic.CodeAesCbcDecryptionErr, "pay notify Unmarshal fail event.Type charge.refunded")
		}
		err = l.HandleChargeRefunded(&chargeRefunded)
		if err != nil {
			logx.Errorf("err：%+v，desc：%s", err, "pay notify handle charge.refunded")
			return resp.SetStatusWithMessage(basic.CodeAesCbcDecryptionErr, "pay notify handle charge.refunded")
		}

	// ... handle other event types
	default:
		logx.Error("Unhandled event")
		return resp.SetStatusWithMessage(basic.CodeAesCbcDecryptionErr, "pay notify Unmarshal fail event.Type Unhandled")
	}

	return resp.SetStatus(basic.CodeOK)
}

// 回调事件日志
func (l *StripeWebhookLogic) HandlePayEventCreate(fsPayEvent *gmodel.FsOrderTradeEvent) error {
	result := l.svcCtx.MysqlConn.Create(fsPayEvent)
	return result.Error
}

// 退款成功
func (l *StripeWebhookLogic) HandleChargeRefunded(chargeRefunded *stripe.Charge) (err error) {
	// 退款成功
	// if chargeRefunded.Status == "succeeded" {
	// 	ctx := l.ctx
	// 	err = l.svcCtx.MysqlConn.Transaction(func(connGorm *gorm.DB) error {
	// 		// 查询支付记录
	// 		payModelT := gmodel.NewFsPayModel(connGorm)
	// 		payModelTRSB := payModelT.BuilderTrans(nil)
	// 		payModelTRSB1 := payModelTRSB.Where("trade_no = ?", chargeRefunded.PaymentIntent.ID).Where("pay_status = ?", constants.PAYSTATUS_SUCCESS).Where("is_refund = ?", 0)
	// 		payInfo, err := payModelT.FindOneByQuery(ctx, payModelTRSB1, nil)
	// 		if err != nil {
	// 			return err
	// 		}
	// 		// 更新支付记录
	// 		*payInfo.IsRefund = 1
	// 		_, err = payModelT.RBCreateOrUpdate(ctx, payInfo)
	// 		if err != nil {
	// 			return err
	// 		}
	// 		// 获取是否还有未退款的数据
	// 		payModelTRSB2 := payModelTRSB.Where("order_number = ?", payInfo.OrderNumber).Where("pay_status = ?", constants.PAYSTATUS_SUCCESS).Where("is_refund = ?", 0)
	// 		count, err := payModelT.FindCount(l.ctx, payModelTRSB2, nil)
	// 		if count == 0 {
	// 			// 退款完成更新订单状态
	// 			orderModelT := gmodel.NewFsOrderModel(connGorm)
	// 			orderModelTRSB := orderModelT.BuilderTrans(nil).Where("sn =?", payInfo.OrderNumber)
	// 			orderInfoRel, err := orderModelT.FindOneByQuery(ctx, orderModelTRSB, nil)
	// 			if err != nil {
	// 				return err
	// 			}
	// 			var isRefunded int64 = 1
	// 			var isRefunding int64 = 1
	// 			var orderStatus int64 = int64(constants.STATUS_NEW_REFUNDED)
	// 			var orderInfo = &gmodel.FsOrder{}
	// 			orderInfo.Id = orderInfoRel.Id
	// 			orderInfo.IsRefunded = &isRefunded
	// 			orderInfo.IsRefunding = &isRefunding
	// 			orderInfo.Status = &orderStatus
	// 			orderModelT.Update(ctx, orderInfo)

	// 			// 记录退款原因
	// 			refundReasonModelT := gmodel.NewFsRefundReasonModel(connGorm)
	// 			refundReasonModelTRSB := refundReasonModelT.BuilderTrans(nil)
	// 			refundReasonModelTRSB1 := refundReasonModelTRSB.Where("order_id =?", orderInfoRel.Id)
	// 			refundReasonInfo, err := refundReasonModelT.FindOneByQuery(ctx, refundReasonModelTRSB1, nil)
	// 			if err != nil {
	// 				return err
	// 			}
	// 			*refundReasonInfo.IsRefund = 1
	// 			_, err = refundReasonModelT.RBCreateOrUpdate(ctx, refundReasonInfo)
	// 			if err != nil {
	// 				return err
	// 			}
	// 		}
	// 		return err
	// 	})
	// }
	return err
}

// session完成
func (l *StripeWebhookLogic) handlePaymentSessionCompleted(sessionId string, tradeNo string) (err error) {
	// 查询支付记录
	payModel := gmodel.NewFsPayModel(l.svcCtx.MysqlConn)
	rsbPay := payModel.RowSelectBuilder(nil)
	rsbPay = rsbPay.Where("session_id = ?", sessionId)
	payInfo, err := payModel.FindOneByQuery(l.ctx, rsbPay, nil)
	if err != nil {
		return err
	}
	if *payInfo.PayStatus == 0 {
		*payInfo.TradeNo = tradeNo
		_, err = payModel.CreateOrUpdate(l.ctx, payInfo)
		if err != nil {
			return err
		}
	} else {
		return errors.New("pay status 1")
	}
	return err
}

// 付款成功
func (l *StripeWebhookLogic) HandlePaymentIntentSucceeded(paymentIntent *stripe.PaymentIntent, eventId string) error {
	fmt.Println(paymentIntent)
	// 支付成功
	if paymentIntent.Status == "succeeded" {
		model, ok := paymentIntent.Metadata["model"]
		if !ok {
			err := errors.New("model is empty")
			logc.Errorf(l.ctx, "PaymentSuccessful failed param, eventId:%s,err:%v", eventId, err)
			return err
		}
		switch model {
		case "product_order":
			res, err := l.svcCtx.Repositories.NewOrder.PaymentSuccessful(l.ctx, &repositories.PaymentSuccessfulReq{
				EventId:       eventId,
				PaymentMethod: 1,
				PaymentIntent: paymentIntent,
			})
			if err != nil {
				return err
			}
			fmt.Println(res)
		}
	}
	return nil
}