// Copyright 2019 getensh.com. All rights reserved.
// Use of this source code is governed by getensh.com.

package charge

import (
	"context"
	"encoding/json"
	"fmt"
	"git.getensh.com/common/gopkgs/database"
	"git.getensh.com/common/gopkgs/logger"
	"go.uber.org/zap"
	"google.golang.org/grpc/status"
	"gorm.io/gorm"
	"property-garden/errors"
	"property-garden/impl/v1/charge_utils"
	dbmodel "property-garden/model"
	pb_v1 "property-garden/pb/v1"
	"property-garden/utils"
	"time"
)


func checkChargeOrderCancelParam(req *pb_v1.ChargeOrderCancelRequest) error {
	switch {
	case req.GardenId == 0:
		return status.Error(10003, "小区不能为空")
	case req.OrderId == "":
		return status.Error(10003, "订单号不能为空")
	}

	return nil

}


func ChargeOrderCancel(ctx context.Context, req *pb_v1.ChargeOrderCancelRequest) (reply *pb_v1.ChargeOrderCancelReply, err error) {

	reply = &pb_v1.ChargeOrderCancelReply{}

	// 捕获各个task中的异常并返回给调用者
	defer func() {
		if r := recover(); r != nil {
			err = fmt.Errorf("%+v", r)
			e := &status.Status{}
			if er := json.Unmarshal([]byte(err.Error()), e); er != nil {
				logger.Error("err",
					zap.String("system_err", err.Error()),
					zap.Stack("stacktrace"))
			}
		}
	}()
	// 参数检查
	err = checkChargeOrderCancelParam(req)
	if err != nil {
		return nil, err
	}
	dbname := utils.GetGardenDbName(req.GardenId)

	// 查看订单
	order := dbmodel.NewChargeOrder(dbname)
	where := map[string]interface{}{
		"order_id":req.OrderId,
	}
	err = order.Find(database.DB(), where)
	if err != nil && err != gorm.ErrRecordNotFound{
		return nil, errors.DataBaseError
	}
	if order.OrderId == "" {
		return nil, errors.ErrRecordNotFound
	}
	if order.Status != charge_utils.PayStatusUnPay {
		return nil, status.Error(10003, "当前状态不能取消")
	}
	if time.Now().Unix() - order.CreatedAt.Unix() < 10 *60 {
		//return nil, status.Error(10003, "订单10钟内不能取消")
	}
	if req.ByUser {
		values := map[string]interface{}{
			"deleted":1,
		}
		err = order.Update(database.DB(), where, values)
		if err != nil {
			return nil, errors.DataBaseError
		}
		return reply, nil
	}

	// 删除订单
	db := database.DB().Begin()
	defer func () {
		if err != nil {
			db.Rollback()
		}
	}()
	err = order.Delete(db, where)
	if err != nil {
		return nil, errors.DataBaseError
	}


	// 修改账单状态为待缴
	bill := dbmodel.NewChargeBill(dbname)
	where = map[string]interface{}{
		"order_id":req.OrderId,
	}

	values := map[string]interface{}{
		"status":charge_utils.PayStatusUnPay,
		"order_id":"",
	}
	err = bill.Update(db, where, values)
	if err != nil {
		return nil, errors.DataBaseError
	}


	db.Commit()

	return reply, nil
}