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

package garden

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-system/errors"
	dbmodel "property-system/model"
	pb_v1 "property-system/pb/v1"
)

func checkGardenRentSellCountParam(req *pb_v1.GardenRentSellCountRequest) error {
	switch {
	case req.GardenId < 1:
		return status.Error(10003, "请选择要更改的小区")

	}
	return nil
}

//
func GardenRentSellCount(ctx context.Context, req *pb_v1.GardenRentSellCountRequest) (reply *pb_v1.GardenRentSellCountReply, err error) {

	reply = &pb_v1.GardenRentSellCountReply{}

	// 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"))
			}
		}
	}()

	err = checkGardenRentSellCountParam(req)
	if err != nil {
		return nil, err
	}
	if req.SellIncrease == 0 && req.RentIncrease == 0 {
		return reply, nil
	}
	p := &dbmodel.TGardenApproved{}
	where := map[string]interface{}{
		"id": req.GardenId,
	}
	err = p.Find(database.DB(), where)
	if err != nil && err != gorm.ErrRecordNotFound {
		return nil, errors.DataBaseError
	}
	if p.ID == 0 {
		return nil, errors.GardenNotExist
	}

	garden := dbmodel.TGardenApproved{}
	values := map[string]interface{}{}
	if req.RentIncrease > 0 {
		values["house_rent_count"] = gorm.Expr("house_rent_count + ?", req.RentIncrease)
	} else if req.RentIncrease < 0 {
		values["house_rent_count"] = gorm.Expr("house_rent_count - ?", -req.RentIncrease)
	}

	if req.SellIncrease > 0 {
		values["sell_rent_count"] = gorm.Expr("sell_rent_count + ?", req.SellIncrease)
	} else if req.SellIncrease < 0 {
		values["sell_rent_count"] = gorm.Expr("sell_rent_count - ?", req.SellIncrease)
	}
	where = map[string]interface{}{
		"id": req.GardenId,
	}

	err = garden.Update(database.DB(), where, values)
	if err != nil {

		return nil, errors.DataBaseError
	}

	return reply, nil
}