SpotifyBash/spotifyControl at main · Nanimo1309/SpotifyBash · GitHub

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#!/usr/bin/env bash

case $1 in
    "play")
    dbus-send --print-reply --dest=org.mpris.MediaPlayer2.spotify /org/mpris/MediaPlayer2 org.mpris.MediaPlayer2.Player.Play
    ;;
    "pause")
    dbus-send --print-reply --dest=org.mpris.MediaPlayer2.spotify /org/mpris/MediaPlayer2 org.mpris.MediaPlayer2.Player.Pause
    ;;
    "playPause")
    dbus-send --print-reply --dest=org.mpris.MediaPlayer2.spotify /org/mpris/MediaPlayer2 org.mpris.MediaPlayer2.Player.PlayPause
    ;;
    "next")
    dbus-send --print-reply --dest=org.mpris.MediaPlayer2.spotify /org/mpris/MediaPlayer2 org.mpris.MediaPlayer2.Player.Next
    ;;
    "previous")
    dbus-send --print-reply --dest=org.mpris.MediaPlayer2.spotify /org/mpris/MediaPlayer2 org.mpris.MediaPlayer2.Player.Previous
    ;;
    "volumeUp")
    dbus-send --session --type=method_call --print-reply --dest=org.mpris.MediaPlayer2.spotify /org/mpris/MediaPlayer2 org.freedesktop.DBus.Properties.Get string:org.mpris.MediaPlayer2.Player string:Volume | tail -1 | grep -oE "[0-9\.]+$" | xargs echo 0.1+ | bc | xargs -I vol dbus-send --session --type=method_call --print-reply --dest=org.mpris.MediaPlayer2.spotify /org/mpris/MediaPlayer2 org.freedesktop.DBus.Properties.Set string:org.mpris.MediaPlayer2.Player string:Volume variant:double:vol
    ;;
    "volumeDown")
    dbus-send --session --type=method_call --print-reply --dest=org.mpris.MediaPlayer2.spotify /org/mpris/MediaPlayer2 org.freedesktop.DBus.Properties.Get string:org.mpris.MediaPlayer2.Player string:Volume | tail -1 | grep -oE "[0-9\.]+$" | xargs -I vol echo "ret=vol-0.1; if(ret < 0.1) 0 else ret" | bc | xargs -I vol dbus-send --session --type=method_call --print-reply --dest=org.mpris.MediaPlayer2.spotify /org/mpris/MediaPlayer2 org.freedesktop.DBus.Properties.Set string:org.mpris.MediaPlayer2.Player string:Volume variant:double:vol
    ;;
    *)
    echo "play, pause, playPause, next, previous, volumeUp, volumeDown"
    ;;
esac