package visitor

import (
	"context"
	"crypto/rc4"
	"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"
	"property-device/impl/v1/gate_match"
	dbmodel "property-device/model"
	"property-device/parser"
	pb_v1 "property-device/pb/v1"
	"property-device/utils/gate_utils"

	"time"
)

const (
	GateTypeCode = 1
	GateTypeFace = 2
)

func checkGateVisitorAddParam(req *pb_v1.GateVisitorAddRequest) error {
	switch {
	case req.DeviceId == 0:
		return status.Error(10003, "设备id不能为空")
	case req.Uid == 0 || req.Name == "" || req.Phone == "" || req.GardenId == 0:
		return status.Error(10003, "不支持的门禁类型")
	case req.VisitorPhone == "" || req.Visitor == "" || req.Comment == "":
		return status.Error(10003, "访客信息不能为空")
	}

	if req.End < 1 || req.Start < 1 {
		return status.Error(10003, "访客邀约请选择时间段")
	}
	if req.End-req.Start > 3600*24 {
		return status.Error(10003, "访客二维码时间不能超过一天")
	}
	return nil
}

func Rc4Encrypt(plain string, key string) string {
	dest := make([]byte, len(plain))
	cipher2, _ := rc4.NewCipher([]byte(key))
	cipher2.XORKeyStream(dest, []byte(plain))
	return fmt.Sprintf("%X", dest)
}

func GateVisitorAdd(ctx context.Context, req *pb_v1.GateVisitorAddRequest) (reply *pb_v1.GateVisitorAddReply, err error) {

	reply = &pb_v1.GateVisitorAddReply{}

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

	g := dbmodel.TGate{}
	where := [][2]interface{}{}
	where = dbmodel.WhereAdd(where, "id", req.DeviceId)
	err = g.Find(database.DB(), where)
	if err != nil && err != gorm.ErrRecordNotFound {
		return nil, errors.DataBaseError
	}
	if g.ID == 0 {
		return nil, errors.ErrRecordNotFound
	}
	whiteMatchInfo, err := gate_match.GetMatchInfoFromUserDb(g.GardenId, fmt.Sprintf("%d", req.Uid), &gate_utils.GateCommonInfo{GardenId: g.GardenId, DeviceId: g.ID})
	if err != nil {
		return nil, err
	}
	if whiteMatchInfo.DeviceId == 0 {
		return nil, status.Error(10003, "您不在白名单中，请联系物业添加白名单")
	}

	p := dbmodel.TGateVisitor{
		Uid:          req.Uid,
		DeviceId:     req.DeviceId,
		Name:         req.Name,
		Phone:        req.Phone,
		Visitor:      req.Visitor,
		VisitorPhone: req.VisitorPhone,
		Start:        req.Start,
		End:          req.End,
		OpenTime:     0,
		CreatedAt:    now,
		UpdatedAt:    now,
		GardenId:     req.GardenId,
		Comment:      req.Comment,
	}
	db := database.DB().Begin()
	err = p.Insert(db)
	if err != nil {
		db.Rollback()
		return nil, errors.DataBaseError
	}
	if p.ID == 0 {
		db.Rollback()
		return nil, errors.DataBaseError
	}
	str := fmt.Sprintf("[%d-%s-%s-%d,%d,%s,%s,0,0,A]",
		req.Uid, req.VisitorPhone, req.Visitor, p.ID,
		req.GardenId,
		time.Unix(req.Start, 0).Format("20060102150405"),
		time.Unix(req.End, 0).Format("20060102150405"))
	qcode := "CB01" + Rc4Encrypt(str, parser.Conf.GateKey)

	where = [][2]interface{}{}
	where = dbmodel.WhereAdd(where, "id", p.ID)
	values := map[string]interface{}{
		"qcode": qcode,
	}
	err = p.Update(db, where, values)
	if err != nil {
		db.Rollback()
		return nil, errors.DataBaseError
	}
	reply.Id = p.ID
	reply.Qcode = qcode
	db.Commit()
	return reply, nil

}