package common

import (
	"context"
	"time"

	"basic.com/valib/deliver.git"
	"github.com/gogo/protobuf/proto"
)

// Sender decoder ingo
type Sender struct {
	ipcURL string
	chMsg  <-chan MsgRS
	shm    bool
	fn     func([]byte, bool)

	fnLogger func(...interface{})
}

// ApplyCallbackFunc cb
func (s *Sender) ApplyCallbackFunc(f func([]byte, bool)) {

	if s.fn == nil {
		s.fn = f
	}
}

// NewSender Sender
func NewSender(ipcURL string, chMsg <-chan MsgRS, shm bool, fn func(...interface{})) *Sender {
	// logo.Infof("create ipc %s for decode : %s\n", ipcURL, ipcURL)
	return &Sender{
		ipcURL:   ipcURL,
		chMsg:    chMsg,
		shm:      shm,
		fn:       nil,
		fnLogger: fn,
	}
}

// Run run a IPC producer
func (s *Sender) Run(ctx context.Context) {

	if s.shm {
		s.runShm(ctx)
	} else {
		i := deliver.NewClient(mode, s.ipcURL)
		if i == nil {
			s.fnLogger("sender 2 pubsub nng create error")
			return
		}
		s.run(ctx, i)
	}
}

func (s *Sender) serializeProto(ctx context.Context, data chan<- []byte) {

	for {
		select {
		case <-ctx.Done():
			s.fnLogger("stop Sender")
			return
		case i := <-s.chMsg:

			d, err := proto.Marshal(&i.Msg)

			if err != nil {
				s.fnLogger("protobuf encode ipc sender error: ", err)
				continue
			}

			data <- d

			if int(i.Msg.Tasklab.Index+1) == len(i.Msg.Tasklab.Sdkinfos) {
				if s.fn != nil {
					sFlag := true
					for _, v := range i.Msg.Tasklab.Sdkinfos {
						if len(v.Sdkdata) < 2 {
							sFlag = false
							break
						}
					}
					s.fn(d, sFlag)
				}
			}

		default:
			time.Sleep(10 * time.Millisecond)
		}
	}
}

func (s *Sender) run(ctx context.Context, i deliver.Deliver) {

	dataChan := make(chan []byte, 3)
	go s.serializeProto(ctx, dataChan)

	for {
		select {
		case <-ctx.Done():
			i.Close()
			return
		case d := <-dataChan:

			if s.shm {
				if err := i.Send(d); err != nil {
					i.Close()
					s.fnLogger("ANALYSIS SENDER ERROR: ", err)

					c, err := deliver.NewClientWithError(deliver.Shm, s.ipcURL)
					for {
						if err == nil {
							break
						}
						time.Sleep(time.Second)
						c, err = deliver.NewClientWithError(deliver.Shm, s.ipcURL)
						s.fnLogger("CLIENT CREATE FAILED : ", err)
					}
					i = c
				} else {

				}
			} else {
				err := i.Send(d)
				if err != nil {
					// logo.Errorln("error sender 2 pubsub: ", err)
				} else {
					s.fnLogger("mangos send to pubsub len: ", len(d))
				}
			}
		default:
			time.Sleep(10 * time.Millisecond)
		}
	}
}

func (s *Sender) runShm(ctx context.Context) {
	c, err := deliver.NewClientWithError(deliver.Shm, s.ipcURL)
	for {
		if err == nil {
			break
		}
		time.Sleep(1 * time.Second)
		c, err = deliver.NewClientWithError(deliver.Shm, s.ipcURL)
		s.fnLogger("CLIENT CREATE FAILED : ", err)
	}
	s.run(ctx, c)
}