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

package charge

import (
	"context"
	"encoding/json"
	"fmt"
	"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"

	"git.getensh.com/common/gopkgs/database"
	"git.getensh.com/common/gopkgs/logger"
	"go.uber.org/zap"
	"google.golang.org/grpc/status"
)



func checkChargeBindParam(req *pb_v1.ChargeBindRequest) error {
	switch {
	case req.GardenId == 0:
		return status.Error(10003, "小区不能为空")
	case req.ChargeId == 0:
		return status.Error(10003, "费用项目不能为空")
	case len(req.ObjIds) == 0:
		return status.Error(10003, "绑定对象不能为空")
	}
	return nil

}



func ChargeBind(ctx context.Context, req *pb_v1.ChargeBindRequest) (reply *pb_v1.ChargeBindReply, err error) {

	reply = &pb_v1.ChargeBindReply{}

	// 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 = checkChargeBindParam(req)
	if err != nil {
		return nil, err
	}
	dbname := utils.GetGardenDbName(req.GardenId)
	chargeInfo := dbmodel.NewChargeConf(dbname)
	where := map[string]interface{}{
		"id":req.ChargeId,
		//"garden_id":req.GardenId,
	}
	err = chargeInfo.Find(database.DB(), where)
	if err != nil && err != gorm.ErrRecordNotFound {
		return nil, errors.DataBaseError
	}
	if chargeInfo.ID == 0 {
		return nil, errors.ErrRecordNotFound
	}
	if chargeInfo.ChargeBasis == charge_utils.ChargeBasisSelf && req.VehicleFee == 0 {
		return nil, status.Error(10003, "车辆自定义费用不能为空")
	}


	if req.Start > 0 {
		t := time.Unix(req.Start, 0)
		req.Start = time.Date(t.Year(), t.Month(), t.Day(), 0, 0, 0, 0, t.Location()).Unix()
	}

	db := database.DB().Begin()
	defer func() {
		if err != nil {
			db.Rollback()
		}
	}()
	switch chargeInfo.ChargeType{
	case charge_utils.ChargeTypeSpace:
		reply, err = addBySpaceIds(req, chargeInfo, db, dbname)
	case charge_utils.ChargeTypeVehicle:
		reply, err = addByVehicleIds(req, chargeInfo, db, dbname)
	default:
		reply, err = addByHouseIds(req, chargeInfo, db, dbname)
	}

	if err != nil {
		return nil, err
	}
	db.Commit()
	return reply, nil

}