package service

import (
	"basic.com/pubsub/protomsg.git"
	"basic.com/valib/deliver.git"
	"fmt"
	"github.com/gogo/protobuf/proto"
	"github.com/pierrec/lz4"
	"github.com/pkg/errors"
	"github.com/satori/go.uuid"
	"gocv.io/x/gocv"
	"sync"
	"time"
)

type FaceSdkService struct {
	File []byte
	Id string
	Result []*protomsg.ResultFaceExtCom
}

const (
	Ipc_Push_Ext       = "_2.ipc"
	Ipc_Pull_Ext       = "_1.ipc"
	Ipc_Url_Pre        = "ipc:///tmp///"
	Virtual_FaceTaskId = "92496BDF-2BFA-98F2-62E8-96DD9866ABD2"
	Virtual_FaceSdkId  = "virtual-faceextract-sdk-pull"
	Url_Service_PUSH   = Ipc_Url_Pre + Virtual_FaceSdkId + Ipc_Push_Ext
	Url_Service_PULL   = Ipc_Url_Pre + Virtual_FaceSdkId + Ipc_Pull_Ext
)

func NewFaceSdkService(fileBytes []byte) FaceSdkService{
	return FaceSdkService{
		File:fileBytes,
		Id:uuid.NewV4().String(),
	}
}

var imgPushChan chan []byte
var client_push deliver.Deliver
var client_pull deliver.Deliver

func TestPushImgMsg() {
	InitService()

	i := readTestImgFile()

	fmt.Printf("width:%d,height:%d,data.length:%d,timestamp:%s,id:%d\n",i.Width,i.Height,len(i.Data),i.Timestamp,i.Id)

	bc, err := ImgCompress(&i)
	if err !=nil {
		fmt.Println("image is not compressible")
	} else {
		var s FaceSdkService
		s.PushImgMsg(bc)
	}
}

func (s *FaceSdkService) ReadFromUploadImg() (*protomsg.Image,error){
	//defer (*(s.File)).Close()
	//imgB, err := ioutil.ReadAll(*(s.File))
	//if err !=nil{
	//	fmt.Println("File.Read err:",err)
	//	return nil,err
	//}

	picMat, err := gocv.IMDecode(s.File, gocv.IMReadColor)
	if err !=nil {
		fmt.Println("gocv.IMDecode err:",err)
		return nil,err
	}
	defer picMat.Close()
	if picMat.Empty() {
		fmt.Println("file not exist")
		return nil,errors.New("picMat is empty")
	}
	height := int32(picMat.Rows())
	width := int32(picMat.Cols())
	data := picMat.ToBytes()
	timeUnix := time.Now().Unix()
	formatTimeStr := time.Unix(timeUnix, 0).Format("2006-01-02 15:04:05")

	return &protomsg.Image{
		Width: width,
		Height: height,
		Timestamp: formatTimeStr,
		Data: data,
		Id: timeUnix,
		Cid:s.Id,
	},nil
}

func ImgCompress(i *protomsg.Image) ([]byte,error){
	if b, err := proto.Marshal(i); err != nil {
		fmt.Println("protoImage marshal err")
		return nil,err
	} else {
		bc := make([]byte, len(b))
		ht := make([]int, 64<<10)
		n, err := lz4.CompressBlock(b, bc, ht)
		if err != nil {
			fmt.Println(err)
			return nil,err
		}
		if n >= len(b) {
			fmt.Println("image is not compressible")
			return nil,errors.New("compressed len is 0")
		}
		bc = bc[:n]
		return bc,nil
	}
}

func (s *FaceSdkService) GetFaceFea(){
	var wg sync.WaitGroup
	wg.Add(1)
	ticker := time.NewTicker(time.Second * 3)
	go func(ticker *time.Ticker, s *FaceSdkService) {
		defer ticker.Stop()
		defer wg.Done()

		for {
			select {
			case <-ticker.C:
				return
			default:
				if feas,ok := resultMap.Get(s.Id);ok {
					s.Result = feas
					return
				}
			}
		}
	}(ticker, s)
	wg.Wait()
}

func readTestImgFile() protomsg.Image{
	var i protomsg.Image
	timeUnix := time.Now().Unix()
	formatTimeStr := time.Unix(timeUnix, 0).Format("2006-01-02 15:04:05")
	filePath := "/home/user/workspace/timg.jpg"

	picMat := gocv.IMRead(filePath, gocv.IMReadColor)

	defer picMat.Close()

	if picMat.Empty() {
		fmt.Println("file not exist")
		return i
	}
	height := int32(picMat.Rows())
	width := int32(picMat.Cols())
	data := picMat.ToBytes()
	//wrMat,_ := gocv.NewMatFromBytes(picMat.Rows(),picMat.Cols(),gocv.MatTypeCV8UC3,data)
	//
	//gocv.IMWrite("xxx.jpg", wrMat)

	i = protomsg.Image{
		Width:     width,
		Height:    height,
		Timestamp: formatTimeStr,
		Data:      data,
		Id:        timeUnix,
	}
	i.Cid = uuid.NewV4().String() //数据唯一id
	fmt.Println("gocv read img completed")
	return i
}

func  (s *FaceSdkService) PushImgMsg(is []byte){
	imgPushChan <- is
}

type FeaResult struct {
	FeaM map[string][]*protomsg.ResultFaceExtCom
	Lock sync.Mutex
}

func (f *FeaResult) Write(id string,faceResult []*protomsg.ResultFaceExtCom){
	f.Lock.Lock()
	defer f.Lock.Unlock()
	f.FeaM[id] = faceResult
}

func (f *FeaResult) Get(id string) ([]*protomsg.ResultFaceExtCom,bool){
	f.Lock.Lock()
	defer f.Lock.Unlock()
	coms,ok := f.FeaM[id]
	return coms,ok
}

func (f *FeaResult) Delete(id string){
	f.Lock.Lock()
	defer f.Lock.Unlock()
	delete(f.FeaM,id)
}

var resultMap =  FeaResult{}

func InitService() {
	fmt.Println("service init!")
	imgPushChan = make(chan []byte)
	resultMap.FeaM = make(map[string][]*protomsg.ResultFaceExtCom,0)
	client_push = deliver.NewClient(deliver.PushPull, Url_Service_PUSH)
	client_pull = deliver.NewClient(deliver.PushPull, Url_Service_PULL)
	defer func() {
		client_push.Close()
		client_pull.Close()
	}()
	go thSend()

	go thRecv()
}

func thSend() {
	for {
		select {
		case d := <-imgPushChan:
			fmt.Println("imgPushChan in")
			err := client_push.Send(d)
			if err != nil {
				fmt.Println("img Send err:", err)
			}
		default:
			//fmt.Println("no img in")
		}
	}
}

func thRecv() {
	for {
		resultBytes, err := client_pull.Recv()
		if err != nil {
			//fmt.Println("pull err:", err)
			continue
		}
		rMsg := protomsg.SdkMessage{}
		if err := proto.Unmarshal(resultBytes, &rMsg); err == nil {
			fmt.Println("received MSG:", rMsg.Cid)
			perId := rMsg.Cid //数据id
			if rMsg.Tasklab != nil && rMsg.Tasklab.Taskid == Virtual_FaceTaskId {
				sdkInfos := rMsg.Tasklab.Sdkinfos

				fmt.Println("Len(sdkInfos)=",len(sdkInfos))
				for _,swt :=range sdkInfos{
					//人脸检测的结果
					//if swt.Sdktype =="FaceDetect"{
					//	fmt.Println("人脸检测结果长度：",len(swt.Sdkdata))
					//	if len(swt.Sdkdata)>1{
					//		var pfp protomsg.ParamFacePos
					//		err := proto.Unmarshal(swt.Sdkdata, &pfp)
					//		if err !=nil {
					//			fmt.Println("faceDetect result unmarshal err:",err)
					//		} else {
					//			for _,face :=range pfp.Faces{
					//				fmt.Println("FacePos:",face.Pos)
					//				fmt.Println("ThftResult:",face.Result)
					//			}
					//		}
					//	}
					//}
					//人脸提取的结果
					if swt.Sdktype == "FaceExtract"{
						fmt.Println("人脸提取结果长度:",len(swt.Sdkdata))
						if len(swt.Sdkdata) > 1{
							var pff protomsg.ParamFaceFeature
							if err := proto.Unmarshal(swt.Sdkdata, &pff);err !=nil{
								//fmt.Println("ParamFaceFeature unmarshal err:",err)
							} else {
								fmt.Println("目标数：",len(pff.ExtComp))
								if len(pff.ExtComp) >0 {
									resultMap.Write(perId,pff.ExtComp)

									//for _,fea :=range pff.ExtComp{
									//	base64Fea := base64.StdEncoding.EncodeToString(fea.Feats)
									//	fmt.Println("perId:",perId)
									//	fmt.Println("faceFeature:",base64Fea)
									//}
								}
							}
							break
						}
					}
				}
			}
		} else {
			fmt.Println("recv msg Err:", err)
		}

	}
}