package gate_card

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"
	"gorm.io/gorm"
	"property-device/errors"
	dbmodel "property-device/model"
	pb_v1 "property-device/pb/v1"
	"property-device/utils"
	"property-device/utils/gate_utils"
	"time"
)

func checkGateCardAddParam(req *pb_v1.GateCardAddRequest) error {
	switch {

	case req.GardenId == 0:
		return status.Error(10003, "小区不能为空")
	case len(req.DeviceIds) == 0:
		return status.Error(10003, "设备不能为空")
	case req.CardNumber == "":
		return status.Error(10003, "卡号不能为空")

	}
	if req.Name == "" {
		req.Name = "匿名用户"
	}
	return nil
}

func GetDevicesByIds(ids []int64) ([]dbmodel.TGate, error) {
	g := dbmodel.TGate{}
	if len(ids) == 0 {
		return []dbmodel.TGate{}, nil
	}
	where := [][2]interface{}{}
	where = dbmodel.WhereAdd(where, "id in", ids)
	list, err := g.List(database.DB(), where, nil, -1, -1)
	if err != nil {
		return nil, errors.DataBaseError
	}
	return list, nil
}

func getNeedAddCardDevices(req *pb_v1.GateCardAddRequest, recordId int64) ([]dbmodel.TGate, error) {
	gcard := dbmodel.TGateCard{}
	where := [][2]interface{}{}
	where = dbmodel.WhereAdd(where, "record_id", recordId)
	gclist, err := gcard.List(database.DB(), where, nil, -1, -1)
	if err != nil {
		return nil, errors.DataBaseError
	}
	added := map[int64]bool{}
	for _, v := range gclist {
		added[v.DeviceId] = true
	}
	needAddDeviceIds := []int64{}
	for _, v := range req.DeviceIds {
		if added[v] {
			continue
		}
		needAddDeviceIds = append(needAddDeviceIds, v)
	}
	if len(needAddDeviceIds) == 0 {
		return nil, nil
	}

	needAddDevices, err := GetDevicesByIds(needAddDeviceIds)
	if err != nil {
		return nil, err
	}
	return needAddDevices, nil

}

func gernerateCardUid() string {
	return fmt.Sprintf("auto-%d-%s", time.Now().Unix(), utils.GenerateRandomStr(6, "mix"))
}

func checkCardExist(req *pb_v1.GateCardAddRequest) (*dbmodel.TUserCard, error) {
	ucard := dbmodel.TUserCard{}
	where := [][2]interface{}{}
	where = dbmodel.WhereAdd(where, "garden_id", req.GardenId)
	where = dbmodel.WhereAdd(where, "card_number", req.CardNumber)
	err := ucard.Find(database.DB(), where)
	if err != nil && err != gorm.ErrRecordNotFound {
		return nil, errors.DataBaseError
	}
	now := time.Now()
	if ucard.ID == 0 {
		ucard.Uid = gernerateCardUid()
		ucard.Name = req.Name
		ucard.CardNumber = req.CardNumber
		ucard.DownStatus = 1
		ucard.HouseId = 0
		ucard.HouseName = ""
		ucard.CreatedAt = now
		ucard.UpdatedAt = now
		ucard.GardenId = req.GardenId
		err = ucard.Insert(database.DB())
		if err != nil {
			return nil, errors.DataBaseError
		}
	}
	return &ucard, nil
}

func GateCardAdd(ctx context.Context, req *pb_v1.GateCardAddRequest) (reply *pb_v1.GateCardAddReply, err error) {

	reply = &pb_v1.GateCardAddReply{}

	// 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"))
			}
		}
	}()
	err = checkGateCardAddParam(req)
	if err != nil {
		return nil, err
	}
	now := time.Now()

	ucard, err := checkCardExist(req)
	if err != nil {
		return nil, err
	}

	// 获取设备
	devices, err := getNeedAddCardDevices(req, ucard.ID)
	if err != nil {
		return nil, err
	}
	if len(devices) == 0 {
		return reply, nil
	}

	// 添加关联记录
	db := database.DB().Begin()
	array := make([]dbmodel.TGateCard, len(devices))
	for i, v := range devices {

		array[i].DeviceId = v.ID
		array[i].RecordId = ucard.ID
		array[i].Status = 1
		array[i].Sn = v.Sn
		array[i].Protocol = v.Protocol
		array[i].CreatedAt = now
		array[i].UpdatedAt = now
		if v.Protocol == gate_utils.GateProtocolSaiboMqttV1 {
			array[i].Status = gate_utils.WhiteAddStatusAllSuc
		}
	}
	gcard := dbmodel.TGateCard{}
	err = gcard.InsertMulti(db, &array)
	if err != nil {
		db.Rollback()
		return nil, err
	}
	db.Commit()

	for i, v := range array {
		gcard := v
		device := devices[i]
		whiter := NewCardWhiter(ucard, &device, &gcard)
		if whiter == nil {
			continue
		}
		whiter.PersonAdd()
		if whiter.Command() {
			gate_utils.CommandCacheIncrease(v.Sn, v.Protocol)
		}
	}

	return reply, nil
}