irc-now-playing.go

package main

import (
    "bufio"
    "crypto/tls"
    "fmt"
    "log"
    "os/exec"
    "strings"
    "time"
)

func getMetadata(field string) string {
    out, err := exec.Command("playerctl", "-p", "qmmp", "metadata", field).Output()
    if err != nil {
        return ""
    }
    return strings.TrimSpace(string(out))
}

func main() {
    server := "irc.kaopeh.com:6697" // TLS port
    channel := "#kaopeh"
    nick := "QMMPBot"

    conn, err := tls.Dial("tcp", server, &tls.Config{})
    if err != nil {
        log.Fatal(err)
    }
    defer conn.Close()

    writer := bufio.NewWriter(conn)
    reader := bufio.NewReader(conn)

    // Register bot
    fmt.Fprintf(writer, "NICK %s\r\n", nick)
    fmt.Fprintf(writer, "USER %s 0 * :QMMP Now Playing Bot\r\n", nick)
    fmt.Fprintf(writer, "JOIN %s\r\n", channel)
    writer.Flush()

    lastTrack := ""

    for {
        track := getMetadata("title")
        artist := getMetadata("artist")

        if track != "" && track != lastTrack {
            msg := fmt.Sprintf("PRIVMSG %s :Now playing: %s - %s\r\n", channel, artist, track)
            fmt.Fprint(writer, msg)
            writer.Flush()
            lastTrack = track
        }

        // Handle PING/PONG to stay connected
        conn.SetReadDeadline(time.Now().Add(1 * time.Second))
        for {
            line, err := reader.ReadString('\n')
            if err != nil {
                break
            }
            line = strings.TrimSpace(line)
            if strings.HasPrefix(line, "PING") {
                fmt.Fprintf(writer, "PONG %s\r\n", line[5:])
                writer.Flush()
            }
        }

        time.Sleep(5 * time.Second)
    }
}