// 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"
	"property-garden/errors"
	"property-garden/impl/v1/charge_utils"
	dbmodel "property-garden/model"
	pb_v1 "property-garden/pb/v1"
	"property-garden/utils"
	"time"
)

func checkChargePayedBillListParam(req *pb_v1.ChargePayedBillListRequest) error {
	switch {
	case req.GardenId == 0:
		return status.Error(10003, "小区不能为空")
	}
	if req.Page == 0 {
		req.Page = 1
	}
	if req.PageSize == 0 {
		req.PageSize = 10
	}
	return nil

}

func getMonthStartAndEnd(data int64) (int64, int64) {
	t := time.Unix(data, 0)
	start := time.Date(t.Year(), t.Month(), 1, 0, 0, 0, 0, time.Local)
	t = t.AddDate(0, 1, 0)
	end := time.Date(t.Year(), t.Month(), 1, 0, 0, 0, 0, time.Local)
	return start.Unix(), end.Unix()
}
func ChargePayedBillList(ctx context.Context, req *pb_v1.ChargePayedBillListRequest) (reply *pb_v1.ChargePayedBillListReply, err error) {

	reply = &pb_v1.ChargePayedBillListReply{}

	// 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 = checkChargePayedBillListParam(req)
	if err != nil {
		return nil, err
	}
	dbname := utils.GetGardenDbName(req.GardenId)

	bill := dbmodel.NewChargeBillPayed(dbname)
	where := map[string]interface{}{}
	if req.ChargeType > 0 {
		where["charge_type"] = req.ChargeType
	}
	if req.ObjName != "" {
		where["obj_name"] = req.ObjName
	}
	if req.ChargeName != "" {
		where["charge_name"] = req.ChargeName
	}
	if req.PayTime > 0 {
		start, end := getMonthStartAndEnd(req.PayTime)
		where["pay_time >="] = start
		where["pay_time <"] = end
	}
	if req.HouseId > 0 {
		where["house_id"] = req.HouseId
	}
	if req.ObjType > 0 {
		where["obj_type"] = req.ObjType
	}
	// 账单数量
	reply.Total, err = bill.Count(database.DB(), where, nil)
	if err != nil {
		return nil, errors.DataBaseError
	}
	if reply.Total == 0 {
		return reply, nil
	}

	reply.Page = req.Page

	// 账单列表
	list, err := bill.List(database.DB(), where, nil, int(req.Page), int(req.PageSize), "pay_time desc")
	if err != nil {
		return nil, errors.DataBaseError
	}
	reply.List = make([]*pb_v1.ChargePayedBillItem, len(list))
	for i, v := range list {
		chargeDesc := dbmodel.ChargeDesc{}
		json.Unmarshal([]byte(v.ChargeDesc), &chargeDesc)
		item := &pb_v1.ChargePayedBillItem{
			Start:       time.Unix(v.ChargeStart, 0).Format("2006-01-02"),
			End:         time.Unix(v.ChargeEnd, 0).Format("2006-01-02"),
			ChargeType:  v.ChargeType,
			ChargeName:  v.ChargeName,
			Amount:      v.Amount,
			LastUsed:    chargeDesc.PowerLastUsed,
			CurrentUsed: chargeDesc.PowerCurrentUsed,
			LateFee:     v.LateFee,
			BillId:      v.ID,
			ChargeDesc:  charge_utils.GetChargeDesc(chargeDesc),
			PayTime:     time.Unix(v.PayTime, 0).Format("2006-01-02 15:04:05"),
			PayType:     v.PayType,
			ObjName:     v.ObjName,
			ObjType:     v.ObjType,
		}

		reply.List[i] = item
	}

	return reply, nil
}