// 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"
	dbmodel "property-garden/model"
	pb_v1 "property-garden/pb/v1"
	"property-garden/utils"
)

func checkChargeUnbindParam(req *pb_v1.ChargeUnbindRequest) error {
	switch {
	case req.GardenId == 0:
		return status.Error(10003, "小区不能为空")
	case req.ObjId == 0:
		return status.Error(10003, "id不能为空")
	case req.ChargeId == 0:
		return status.Error(10003, "项目不能为空")
	}
	return nil

}


func setPowerBillIdZero(db *gorm.DB, billId int64, dbname string) error {
	p := dbmodel.NewChargePower(dbname)
	where := map[string]interface{}{
		"bill_id":billId,
	}
	values := map[string]interface{}{
		"bill_id":0,
	}
	err := p.Update(db, where, values)
	if err != nil {
		return errors.DataBaseError
	}
	return nil
}

func ChargeUnbind(ctx context.Context, req *pb_v1.ChargeUnbindRequest) (reply *pb_v1.ChargeUnbindReply, err error) {

	reply = &pb_v1.ChargeUnbindReply{}

	// 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 = checkChargeUnbindParam(req)
	if err != nil {
		return nil, err
	}

	dbname := utils.GetGardenDbName(req.GardenId)
	old := dbmodel.NewChargeBind(dbname)
	where := map[string]interface{}{
		"obj_id":        req.ObjId,
		"charge_id": req.ChargeId,
	}
	err = old.Find(database.DB(), where)
	if err != nil && err != gorm.ErrRecordNotFound {
		return nil, errors.DataBaseError
	}
	if old.ID == 0 {
		return nil, errors.ErrRecordNotFound
	}


	reply.Origin = &pb_v1.ChargeUnbindData{
		Id:       old.ID,
		GargenId: req.GardenId,
		ObjId:  old.ObjId,
		ChargeId: old.ChargeId,
	}

	//chargeHouseId := old.ID
	//chargeType := old.ChargeType
	//objType := old.ObjType

	db := database.DB().Begin()
	defer func() {
		if err != nil {
			db.Rollback()
		}
	}()
	err = old.Delete(db, where)
	if err != nil {
		return nil, errors.DataBaseError
	}
	/* 先不删账单
	// 更新抄表记录 billid; 删除未缴账单，不删除支付中账
	bill := dbmodel.NewChargeBill(dbname)
	where = map[string]interface{}{
		"charge_bind_id":old.ID,
	}
	billList, err := bill.List(database.DB(), where, nil, -1, -1)
	if err != nil {
		return nil, errors.DataBaseError
	}
	for _, v := range billList {
		if v.ChargePowerId > 0 {
			err = setPowerBillIdZero(db, v.ID, dbname)
			if err != nil {
				return nil, err
			}
		}
	}
	err = bill.Delete(db, where)
	if err != nil {
		return nil, errors.DataBaseError
	}
	 */


	db.Commit()

	return reply, nil
}