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   $body =~ s:\&:&amp;:g;
   7   $body =~ s:\<:&lt;:g;
   8   $body =~ s:\>:&gt;:g;
   9   my $kid = fork;
  10   defined $kid or return;
  11   if (!$kid) {
  12     open STDOUT, ">", "/dev/null";
  13     exec "notify-send",
  14       "-c", "DisOrder", "-i", "audio-volume-high", "-t", "5000",
  15       $head, $body;
  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   my $startp = 1;
  52   my $stateinfo = undef;
  53   LINE: while (<$log>) {
  54     chomp;
  55     my @f = ();
  56     my $q = my $t = undef;
  57     my $e = 0;
  58     my $j = -1;
  59     for (my $i = 0; $i < length $_; $i++) {
  60       my $ch = substr($_, $i, 1);
  61       if ($e) {
  62         if ($ch eq "n") { $ch = "\n"; }
  63         $t .= $ch; $e = 0;
  64       } elsif ($ch eq $q) {
  65         push @f, $t; $q = $t = undef;
  66       } elsif (defined $q) {
  67         if ($ch eq "\\") { $e = 1; }
  68         else { $t .= $ch; }
  69       } elsif ($ch eq " ") {
  70         push @f, $t if defined $t; $t = undef;
  71       } elsif (!defined $t && ($ch eq '"' || $ch eq "'")) {
  72         $t //= ""; $q = $ch; $j = $i;
  73       } else {
  74         $t //= ""; $t .= $ch;
  75       }
  76     }
  77     defined $q and die "unmatched $q (pos $j) in: $_";
  78     push @f, $t if defined $t;
  79
  80     my $what = $f[1];
  81     if ($what eq "volume" && $startp) {
  82       $startp = 0;
  83       notify "DisOrder state", "Connected: $startinfo";
  84       now_playing;
  85     } elsif ($what eq "state") {
  86       my $st = $f[2];
  87       my $msg;
  88       my $np = 0;
  89       if ($st eq "disable_random") { $msg = "random play disabled"; }
  90       elsif ($st eq "enable_random") { $msg = "random play enabled"; }
  91       elsif ($st eq "disable_play") { $msg = "playing disabled"; }
  92       elsif ($st eq "enable_play") { $msg = "playing enabled"; }
  93       elsif ($st eq "pause") { $msg = "paused"; }
  94       elsif ($st eq "resume") { $msg = "playing"; $np = 1; }
  95       else { next LINE; }
  96       if (!$startp) {
  97         notify "DisOrder state", ucfirst $msg;
  98         now_playing if $np;
  99       } else {
 100         if (defined $startinfo) { $startinfo .= "; " . $msg; }
 101         else { $startinfo = $msg; }
 102       }
 103     } elsif ($what eq "scratched") {
 104       notify "DisOrder state", "Scratched playing track";
 105     } elsif ($what eq "playing") {
 106       now_playing $f[2];
 107     }
 108   }
 109   close $log;
 110   sleep 5;
 111 }