// 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"
	"strings"
	"time"
)

func checkChargeListParam(req *pb_v1.ChargeListRequest) error {
	switch {
	case req.GardenId == 0:
		return status.Error(10003, "小区不能为空")
	case req.ObjId == 0:
		return status.Error(10003, "对象不能为空")
	case req.ObjType == 0:
		return status.Error(10003, "对象类型不能为空")
	}
	if req.Page == 0 {
		req.Page = 1
	}
	if req.PageSize == 0 {
		req.PageSize = 10
	}
	return nil

}

func ChargeList(ctx context.Context, req *pb_v1.ChargeListRequest) (reply *pb_v1.ChargeListReply, err error) {

	reply = &pb_v1.ChargeListReply{}

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

	bind := dbmodel.NewChargeBind(dbname)

	where := map[string]interface{}{
		"obj_id":   req.ObjId,
		"obj_type": req.ObjType,
	}
	if req.ChargeType > 0 {
		where["charge_type"] = req.ChargeType
	}
	reply.Total, err = bind.Count(database.DB(), where, nil)
	if err != nil {
		return nil, errors.DataBaseError
	}
	reply.Page = req.Page
	if reply.Total == 0 {
		return reply, nil
	}
	list, err := bind.List(database.DB(), where, nil, int(req.Page), int(req.PageSize))
	if err != nil {
		return nil, errors.DataBaseError
	}
	reply.List = make([]*pb_v1.ChargeItem, len(list))
	chargeIds := make([]int64, len(list))
	for i, v := range list {
		chargeIds[i] = v.ChargeId
	}
	chargeM, err := charge_utils.GetChargeInfos(chargeIds, dbname)
	if err != nil {
		return nil, err
	}

	bill := dbmodel.NewChargeBill(dbname)
	type Bcount struct {
		Count  int64 `json:"count"`
		BindId int64 `json:"bind_id"`
	}
	blist := []Bcount{}
	err = bill.SelectGroup(database.DB(), where, nil, "sum(1) as count, charge_bind_id as bind_id", "charge_bind_id", -1, -1, &blist)
	if err != nil {
		return nil, errors.DataBaseError
	}
	bm := map[int64]bool{}
	for _, v := range blist {
		if v.Count > 0 {
			bm[v.BindId] = true
		}
	}

	for i, v := range list {
		chargeInfo := chargeM[v.ChargeId]
		item := &pb_v1.ChargeItem{
			BindId:         v.ID,
			ChargeType:     v.ChargeType,
			ChargeName:     chargeInfo.ChargeName,
			ChargeTimeType: chargeInfo.ChargeTimeType,
			CreatedAt:      v.CreatedAt.Format("2006-01-02"),
			Start:          "-",
			End:            "-",
			Status:         "未开始",
			HasBill:        bm[v.ID],
		}
		if v.Start > 0 {
			item.Start = time.Unix(v.Start, 0).Format("2006-01-02")
		}
		if v.End > 0 {
			item.End = time.Unix(v.End, 0).Format("2006-01-02")
		}
		if v.Start <= time.Now().Unix() {
			item.Status = "缴费中"
		}

		array := []string{}

		if chargeInfo.ChargeBasis == charge_utils.ChargeBasisSpaceArea ||
			chargeInfo.ChargeBasis == charge_utils.ChargeBasisArea ||
			chargeInfo.ChargeBasis == charge_utils.ChargeBasisUsedArea {
			array = append(array, fmt.Sprintf("面积:%f", v.ObjArea))
		}
		if chargeInfo.ChargeBasis == charge_utils.ChargeBasisFix {
			array = append(array, fmt.Sprintf("固定费用:%.2f", float64(chargeInfo.FixAmount)/100.00))
		} else if chargeInfo.FixAmount > 0 {
			array = append(array, fmt.Sprintf("附加费用(%s):%.2f", chargeInfo.FixAmountName, float64(chargeInfo.FixAmount)/100.00))
		}
		if chargeInfo.ChargeBasis == charge_utils.ChargeBasisSelf {
			array = append(array, fmt.Sprintf("自定义费用:%.2f", float64(v.CustomFee)/100.00))
		}
		if chargeInfo.UnitPrice > 0 {
			array = append(array, fmt.Sprintf("单价:%.2f", float64(chargeInfo.UnitPrice)/100.00))

		}
		item.Desc = strings.Join(array, "/")
		reply.List[i] = item
	}
	return reply, nil
}