// 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"
)

func checkChargeUnpayListParam(req *pb_v1.ChargeUnpayListRequest) error {
	switch {
	case req.GardenId == 0:
		return status.Error(10003, "小区不能为空")
	case req.ObjId == 0:
		if req.HouseId == 0 && req.Status == 0 {
			return status.Error(10003, "对象不能为空")
		}

	case req.ObjType == 0:
		if req.HouseId == 0 && req.Status == 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 GetObjBindChargeLateFee(bindId int64, chargeInfoM map[int64]dbmodel.TChargeConf, dbname string) (int64, error) {
	p := dbmodel.NewChargeBill(dbname)
	where := map[string]interface{}{
		//"obj_id":objId,
		//"obj_type":objType,
		"charge_bind_id": bindId,
	}
	page := 1
	ret := int64(0)
	for {
		list, err := p.List(database.DB(), where, nil, page, 10, "")
		if err != nil {
			return 0, errors.DataBaseError
		}
		if len(list) == 0 {
			return ret, nil
		}
		for _, v := range list {
			chargeInfo := chargeInfoM[v.ChargeId]
			lfee, _ := charge_utils.GetLateFee(v.Amount, v.ChargeEnd, &chargeInfo)
			ret += lfee
		}
		if len(list) < 10 {
			break
		}
	}
	return ret, nil
}

type ChargeUnpayItem struct {
	BindId         int64
	ChargeType     int32
	ChargeName     string
	ChargeTimeType int32
	BillCount      int64
	UnpayAmount    int64
}

func ChargeUnpayList(ctx context.Context, req *pb_v1.ChargeUnpayListRequest) (reply *pb_v1.ChargeUnpayListReply, err error) {

	reply = &pb_v1.ChargeUnpayListReply{}

	// 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 = checkChargeUnpayListParam(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)
	result := []ChargeUnpayItem{}

	group := "charge_bind_id"
	selectStr := "charge_bind_id as bind_id, charge_type, charge_name, charge_time_type, sum(amount) as unpay_amount, sum(1) as bill_count"
	where := map[string]interface{}{}
	if req.ObjId > 0 {
		where["obj_id"] = req.ObjId
	}
	if req.ObjType > 0 {
		where["obj_type"] = req.ObjType
	}
	if req.ChargeType > 0 {
		where["charge_type"] = req.ChargeType
	}
	if req.HouseId > 0 {
		where["house_id"] = req.HouseId
	}
	if req.Status > 0 {
		where["status"] = req.Status
	}

	reply.Total, err = bill.CountGroup(database.DB(), where, nil, group)
	if err != nil {
		return nil, errors.DataBaseError
	}
	reply.Page = req.Page
	if reply.Total == 0 {
		return reply, nil
	}
	err = bill.SelectGroup(database.DB(), where, nil,
		selectStr, group, int(req.Page), int(req.PageSize), &result)
	if err != nil {
		return nil, errors.DataBaseError
	}
	reply.List = make([]*pb_v1.ChargeUnpayItem, len(result))
	for i, v := range result {
		lateFee, err := GetObjBindChargeLateFee(v.BindId, chargeInfoM, dbname)
		if err != nil {
			return nil, err
		}
		reply.List[i] = &pb_v1.ChargeUnpayItem{
			BindId:         v.BindId,
			ChargeType:     v.ChargeType,
			ChargeName:     v.ChargeName,
			ChargeTimeType: v.ChargeTimeType,
			BillCount:      v.BillCount,
			UnpayAmount:    v.UnpayAmount + lateFee,
		}
	}
	return reply, nil
}