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

package statistic

import (
	"context"
	"encoding/json"
	"fmt"
	"git.getensh.com/common/gopkgs/database"
	"gorm.io/gorm"
	"property-company/errors"
	dbmodel "property-company/model"
	pb_v1 "property-company/pb/v1"
	"time"

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

func checkCompanyDealStatisticSetParam(req *pb_v1.CompanyDealStatisticSetRequest) error {

	switch {
	case req.GardenId == 0:
		return status.Error(10003, "小区不能同时为空")
	case req.DateTimestamp == 0:
		return status.Error(10003, "时间不能为空")
	}
	return nil
}

func CompanyDealStatisticSetWithDb(req *pb_v1.CompanyDealStatisticSetRequest, db *gorm.DB) error {
	now := time.Now()

	cid, err := getCidByGarden(req.GardenId)
	if err != nil {
		return err
	}

	t := time.Unix(req.DateTimestamp, 0)
	t = time.Date(t.Year(), t.Month(), t.Day(), 0, 0, 0, 0, t.Location())
	timestamp := t.Unix()

	where := map[string]interface{}{
		"cid":            cid,
		"date_timestamp": timestamp,
	}
	values := map[string]interface{}{}

	values["deal_amount"] = gorm.Expr("deal_amount + ?", req.Amount)
	values["deal_count"] = gorm.Expr("deal_count + ?", 1)

	if len(values) == 0 {
		return nil
	}
	p := dbmodel.TStatisticDeal{}
	affected, err := p.UpdateAffected(db, where, values)
	if err != nil {
		return errors.DataBaseError
	}
	if affected > 0 {
		return nil
	}
	p.DealAmount = req.Amount
	p.CreatedAt = now
	p.UpdatedAt = now
	p.Cid = cid
	p.DealCount = 1
	p.DateTimestamp = timestamp

	err = p.Insert(db)
	if err != nil {
		return errors.DataBaseError
	}
	return nil

}

func CompanyDealStatisticSet(ctx context.Context, req *pb_v1.CompanyDealStatisticSetRequest) (reply *pb_v1.CompanyDealStatisticSetReply, err error) {

	reply = &pb_v1.CompanyDealStatisticSetReply{}

	// 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 = checkCompanyDealStatisticSetParam(req)
	if err != nil {
		return nil, err
	}
	err = CompanyDealStatisticSetWithDb(req, database.DB())
	return reply, err
}