implement ipc

main.go

@@ -1,12 +1,23 @@
 package main
 
 import (
+	"encoding/json"
 	"flag"
 	"fmt"
+	"io"
+	"net"
 	"os"
 	"os/exec"
+	"time"
 )
 
+type MPVRequest struct {
+	Command []string `json:"command"`
+}
+type MPVResponse struct {
+	Data string `json:"data"`
+}
+
 type MPV struct {
 	cmd        *exec.Cmd
 	socketPath string
@@ -20,12 +31,43 @@ func NewMPV(streamUrl string, socketPath string) MPV {
 }
 
 func (mpv *MPV) Spawn() error {
-	mpv.cmd.Stdout = os.Stdout
+	mpv.cmd.Stdout = io.Discard
 	mpv.cmd.Stderr = os.Stderr
 
 	return mpv.cmd.Start()
 }
 
+func (mpv *MPV) Stop() error {
+	return mpv.cmd.Process.Kill()
+}
+
+func (mpv *MPV) ExecuteIPC(req *MPVRequest) ([]byte, error) {
+	reqBytes, err := json.Marshal(req)
+	if err != nil {
+		return nil, err
+	}
+	reqBytes = append(reqBytes, byte('\n'))
+
+	conn, err := net.Dial("unix", mpv.socketPath)
+	if err != nil {
+		return nil, err
+	}
+	defer conn.Close()
+
+	_, err = conn.Write(reqBytes)
+	if err != nil {
+		return nil, err
+	}
+
+	resBytes := make([]byte, 1024)
+	n, err := conn.Read(resBytes)
+	if err != nil {
+		return nil, err
+	}
+
+	return resBytes[:n], nil
+}
+
 var testUrl string
 
 func main() {
@@ -34,4 +76,13 @@ func main() {
 
 	mpv := NewMPV(testUrl, "/tmp/mptv3.sock")
 	mpv.Spawn()
+	defer mpv.Stop()
+
+	time.Sleep(time.Second * 2)
+	fmt.Println("EXECUTING IPC!!!!")
+	res, err := mpv.ExecuteIPC(&MPVRequest{
+		Command: []string{"get_property", "playback-time"},
+	})
+
+	fmt.Println(res, err)
 }