// 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 checkChargeObjBillListParam(req *pb_v1.ChargeObjBillListRequest) error {
	switch {
	case req.GardenId == 0:
		return status.Error(10003, "小区不能为空")
	case !req.All && req.ObjId == 0:
		//return status.Error(10003, "对象id不能为空")
	case !req.All && 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 ChargeObjBillList(ctx context.Context, req *pb_v1.ChargeObjBillListRequest) (reply *pb_v1.ChargeObjBillListReply, err error) {

	reply = &pb_v1.ChargeObjBillListReply{}

	// 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 = checkChargeObjBillListParam(req)
	if err != nil {
		return nil, err
	}

	dbname := utils.GetGardenDbName(req.GardenId)
	chargeInfoM, err := charge_utils.GetAllChargeInfos(dbname)
	if err != nil {
		return nil, err
	}
	bill := dbmodel.NewChargeBill(dbname)
	where := map[string]interface{}{}
	if req.ObjType > 0 {
		where["obj_type"] = req.ObjType
	}
	if req.ObjId > 0 {
		where["obj_id"] = req.ObjId
	}

	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
	}

	// 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), "")
	if err != nil {
		return nil, errors.DataBaseError
	}
	reply.List = make([]*pb_v1.ChargeBillItem, len(list))
	for i, v := range list {
		chargeInfo := chargeInfoM[v.ChargeId]
		chargeDesc := dbmodel.ChargeDesc{}
		json.Unmarshal([]byte(v.ChargeDesc), &chargeDesc)
		lfee, ldays := charge_utils.GetLateFee(v.Amount, v.ChargeEnd, &chargeInfo)
		item := &pb_v1.ChargeBillItem{
			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:     lfee,
			LateDays:    ldays,
			BillId:      v.ID,
			ChargeDesc:  charge_utils.GetChargeDesc(chargeDesc),
			ObjId:       v.ObjId,
			ObjType:     v.ObjType,
			ObjName:     v.ObjName,
		}

		reply.ShouldPayAmount += item.Amount
		reply.ShouldPayAmount += item.LateFee
		reply.List[i] = item
	}

	return reply, nil
}