mdw@git.distorted.org.uk Git - profile/blob - bin/disorder-notify

   1 #! /usr/bin/perl
   2
   3 sub notify ($$) {
   4   my ($head, $body) = @_;
   5
   6   my $kid = fork;
   7   defined $kid or return;
   8   if (!$kid) {
   9     open STDOUT, ">", "/dev/null";
  10     exec "gdbus", "call", "-e",
  11       "-d", "org.freedesktop.Notifications",
  12       "-o", "/org/freedesktop/Notifications",
  13       "-m", "org.freedesktop.Notifications.Notify", "--",
  14       "DisOrder", "0", "audio-volume-high",
  15       $head, $body, "[]", "{}", "5000";
  16   }
  17   waitpid $kid, 0;
  18 }
  19
  20 sub cmd (@) {
  21   my @args = @_;
  22   open my $f, "-|", "disorder", @args;
  23   chomp (my @r = <$f>);
  24   close $f;
  25   if (wantarray) { return @r; }
  26   elsif (@r == 1) { return $r[0]; }
  27   else { return "??? multiple lines"; }
  28 }
  29
  30 sub now_playing (;$) {
  31   my ($track) = @_;
  32   if (!defined $track) {
  33     my @r = cmd "playing";
  34     if ($r[0] =~ /^track\s+(.*)$/) { $track = $1; }
  35     else { return; }
  36   }
  37   my %p;
  38   for my $p ("artist", "album", "title")
  39     { $p{$p} = cmd "part", $track, "display", $p; }
  40   if ($p{artist} =~ /^[A-Z]$/)
  41     { $p{artist} = $p{album}; $p{album} = undef; }
  42   elsif ($p{artist} eq "share" && $p{album} eq "disorder")
  43     { next LINE; }
  44   my $r = "$p{artist}: ‘$p{title}’";
  45   if (defined $p{album}) { $r .= ", from ‘$p{album}’"; }
  46   notify "DisOrder: now playing", $r;
  47 }
  48
  49 for (;;) {
  50   open my $log, "-|", "disorder", "log";
  51   LINE: while (<$log>) {
  52     chomp;
  53     my @f = ();
  54     my $q = my $t = undef;
  55     my $e = 0;
  56     my $j = -1;
  57     for (my $i = 0; $i < length $_; $i++) {
  58       my $ch = substr($_, $i, 1);
  59       if ($e) {
  60         if ($ch eq "n") { $ch = "\n"; }
  61         $t .= $ch; $e = 0;
  62       } elsif ($ch eq $q) {
  63         push @f, $t; $q = $t = undef;
  64       } elsif (defined $q) {
  65         if ($ch eq "\\") { $e = 1; }
  66         else { $t .= $ch; }
  67       } elsif ($ch eq " ") {
  68         push @f, $t if defined $t; $t = undef;
  69       } elsif (!defined $t && ($ch eq '"' || $ch eq "'")) {
  70         $t //= ""; $q = $ch; $j = $i;
  71       } else {
  72         $t //= ""; $t .= $ch;
  73       }
  74     }
  75     defined $q and die "unmatched $q (pos $j) in: $_";
  76     push @f, $t if defined $t;
  77
  78     my $what = $f[1];
  79     if ($what eq "state") {
  80       my $st = $f[2];
  81       my $msg;
  82       my $np = 0;
  83       if ($st eq "disable_random") { $msg = "random play disabled"; }
  84       elsif ($st eq "enable_random") { $msg = "random play enabled"; }
  85       elsif ($st eq "disable_play") { $msg = "playing disabled"; }
  86       elsif ($st eq "enable_play") { $msg = "playing enabled"; }
  87       elsif ($st eq "pause") { $msg = "paused"; }
  88       elsif ($st eq "resume") { $msg = "playing"; $np = 1; }
  89       else { next LINE; }
  90       notify "DisOrder state", ucfirst $msg;
  91       now_playing if $np;
  92       }
  93     } elsif ($what eq "playing") {
  94       now_playing $f[2];
  95     }
  96   }
  97   close $log;
  98   sleep 5;
  99 }