7 use Log::Any::Adapter Stderr => log_level => 'trace';
9 use Syntax::Keyword::Try;
12 use Time::Duration qw(duration_exact);
13 use Time::Duration::Parse qw(parse_duration);
14 has $log_level :reader = 'warn';
15 has $target_queue_length :reader = 10;
16 has $mpd_host :reader = undef;
17 has $mpd_port :reader = undef;
18 has $db_path :reader = 'mpd-feeder';
19 has $db_user :reader = undef;
20 has $db_password :reader = undef;
21 has $min_album_interval :reader = parse_duration('5h');
22 has $min_song_interval :reader = parse_duration('13d');
23 has $min_artist_interval :reader = parse_duration('1h 15m');
24 has $skip_db_update :reader = 0;
26 method parse_command_line {
27 Getopt::Long::GetOptions(
28 'log-level=s' => \$log_level,
29 'skip-db-update!' => \$skip_db_update,
30 'tql|target-queue-length=n' => \$target_queue_length,
31 'mpd-host=s' => \$mpd_host,
32 'mpd-port=s' => \$mpd_port,
33 'db-path=s' => \$db_path,
34 'db-user=s' => \$db_user,
35 'min-album-interval=s' => sub {
36 $min_album_interval = parse_duration(pop);
38 'min-sing-interval=s' => sub {
39 $min_song_interval = parse_duration(pop);
41 'min-artist-interval=s' => sub {
42 $min_artist_interval = parse_duration(pop);
47 sub handle_config_option( $ini, $section, $option, $target_ref,
50 return undef unless exists $ini->{$section}{$option};
52 my $value = $ini->{$section}{$option};
54 $value = $converter->($value) if $converter;
56 $$target_ref = $value;
61 say "log_level = $log_level";
64 say "host = " . ( $mpd_host // '' );
65 say "port = " . ( $mpd_port // '' );
66 say "target-queue-length = $target_queue_length";
69 say "target-length = $target_queue_length";
70 say "min-song-interval = " . duration_exact($min_song_interval);
71 say "min-album-interval = " . duration_exact($min_album_interval);
72 say "min-artist-interval = " . duration_exact($min_artist_interval);
75 say "path = " . ( $db_path // '' );
76 say "user = " . ( $db_user // '' );
77 say "password = " . ( $db_password // '' );
80 method parse_config_file($path) {
81 use Config::INI::Reader;
82 my $ini = Config::INI::Reader->read_file($path);
84 handle_config_option( $ini => mpd => host => \$mpd_host );
85 handle_config_option( $ini => mpd => port => \$mpd_port );
87 handle_config_option( $ini => 'mpd-feeder' => log_level => \$log_level );
90 $ini => queue => 'target-length' => \$target_queue_length );
92 $ini => queue => 'min-song-interval' => \$min_song_interval,
96 $ini => queue => 'min-album-interval' => \$min_album_interval,
100 $ini => queue => 'min-artist-interval' => \$min_artist_interval,
104 handle_config_option( $ini => db => path => \$db_path );
105 handle_config_option( $ini => db => user => \$db_user );
106 handle_config_option( $ini => db => password => \$db_password );
108 # FIXME: complain about unknown sections/parameters
116 has $db_needs_update = 1;
119 use constant DEFAULT_CONFIG_FILE => '/etc/mpd-feeder/mpd-feeder.conf';
123 use Log::Any qw($log);
131 Getopt::Long::Configure('pass_through');
132 Getopt::Long::GetOptions('cfg|config=s' => \$cfg_file);
133 Getopt::Long::Configure('no_pass_through');
135 $cfg_file //= DEFAULT_CONFIG_FILE if -e DEFAULT_CONFIG_FILE;
137 $opt->parse_config_file($cfg_file) if $cfg_file;
140 $opt->parse_command_line;
142 $db_needs_update = 0 if $opt->skip_db_update;
144 Log::Any::Adapter->set( Stderr => log_level => $opt->log_level );
150 my %conn = ( auto_connect => 1 );
151 $conn{host} = $opt->mpd_host if $opt->mpd_host;
152 $conn{port} = $opt->mpd_port if $opt->mpd_port;
154 $mpd = Net::Async::MPD->new(%conn);
160 $db = DBI->connect( "dbi:Pg:dbname=" . $opt->db_path,
161 $opt->db_user, $opt->db_password,
162 { RaiseError => 1, AutoCommit => 1 } );
164 $log->info( "Connected to database " . $opt->db_path );
165 $db_generation = $self->db_get_option('generation');
166 $log->debug("DB generation is $db_generation");
170 method db_get_option($name) {
171 my $sth = $db->prepare_cached("select $name from options");
173 my @result = $sth->fetchrow_array;
178 method db_set_option( $name, $value ) {
179 my $sth = $db->prepare_cached("update options set $name = ?");
180 $sth->execute($value);
183 method db_store_song($song, $artist, $album) {
184 return unless length($song) and length($artist) and length($album);
187 <<'SQL')->execute( $song, $artist, $album, $db_generation );
188 INSERT INTO songs(path, artist, album, generation)
189 VALUES($1, $2, $3, $4)
190 ON CONFLICT ON CONSTRAINT songs_pkey DO
191 UPDATE SET artist = $2
195 $db->prepare_cached(<<'SQL')->execute( $artist, $album, $db_generation );
196 INSERT INTO albums(artist, album, generation)
198 ON CONFLICT ON CONSTRAINT albums_pkey DO
199 UPDATE SET generation = $3
201 $db->prepare_cached(<<'SQL')->execute( $artist, $db_generation );
202 INSERT INTO artists(artist, generation)
204 ON CONFLICT ON CONSTRAINT artists_pkey DO
205 UPDATE SET generation = $2
209 method db_remove_stale_entries {
211 $db->prepare_cached('DELETE FROM songs WHERE generation <> ?');
212 $sth->execute($db_generation);
213 $log->debug( sprintf( "Deleted %d stale songs", $sth->rows ) );
215 $sth = $db->prepare_cached('DELETE FROM albums WHERE generation <> ?');
216 $sth->execute($db_generation);
217 $log->debug( sprintf( "Deleted %d stale albums", $sth->rows ) );
220 $db->prepare_cached('DELETE FROM artists WHERE generation <> ?');
221 $sth->execute($db_generation);
222 $log->debug( sprintf( "Deleted %d stale artists", $sth->rows ) );
225 method db_note_song_qeued($item) {
227 'UPDATE songs SET last_queued=current_timestamp WHERE path=?')
228 ->execute( $item->{song} );
230 'UPDATE artists SET last_queued=CURRENT_TIMESTAMP WHERE artist=?')
231 ->execute( $item->{artist} );
233 'UPDATE albums SET last_queued=CURRENT_TIMESTAMP WHERE artist=? AND album=?'
234 )->execute( $item->{artist}, $item->{album} );
237 method update_db($force = undef) {
238 if (!$db_needs_update and !$force) {
239 $log->debug("Skipping DB update");
243 $log->info('Updating song database');
247 $mpd->send('listallinfo')->on_done(
257 foreach my $entry (@$rows) {
258 next unless exists $entry->{file};
259 $self->db_store_song( $entry->{file},
260 $entry->{Artist}, $entry->{Album} );
264 $log->info("Updated data about $song_count songs");
266 $self->db_remove_stale_entries;
268 $self->db_set_option( generation => $db_generation );
285 method db_find_suitable_songs($num) {
289 my $sth = $db->prepare_cached(<<SQL);
290 SELECT s.path, s.artist, s.album
292 JOIN artists ar ON ar.artist=s.artist
293 JOIN albums al ON al.album=s.album
294 WHERE (s.last_queued IS NULL OR s.last_queued < CURRENT_TIMESTAMP - (? || ' seconds')::interval)
295 AND (ar.last_queued IS NULL OR ar.last_queued < CURRENT_TIMESTAMP - (? || ' seconds')::interval)
296 AND (al.last_queued IS NULL OR al.last_queued < CURRENT_TIMESTAMP - (? || ' seconds')::interval)
297 AND NOT EXISTS (SELECT 1 FROM blacklisted_artists bar WHERE bar.artist = s.artist)
298 AND NOT EXISTS (SELECT 1 FROM blacklisted_albums bal WHERE bal.album = s.album)
303 $opt->min_song_interval,
304 $opt->min_artist_interval,
305 $opt->min_album_interval,
308 while ( my @row = $sth->fetchrow_array ) {
310 { song => $row[0], artist => $row[1], album => $row[2] };
316 method queue_songs($num = undef, $callback = undef) {
319 $mpd->send('playlist')->on_done(
321 my $present = scalar @{ $_[0] };
323 $log->notice("Playlist contains $present songs");
324 if ( $present < $opt->target_queue_length ) {
326 $opt->target_queue_length - $present, $callback );
329 $callback->() if $callback;
337 my @list = $self->db_find_suitable_songs($num);
339 die "Found no suitable songs" unless @list;
341 if ( @list < $num ) {
344 'Found only %d suitable songs instead of %d',
350 $log->info("About to add $num songs to the playlist");
353 for my $song (@list) {
354 my $path = $song->{song};
359 $log->debug( "Adding " . join( ', ', map {"«$_»"} @paths ) );
362 push @commands, [ add => "\"$_\"" ];
365 my $f = $mpd->send( \@commands );
367 $f->on_fail( sub { die @_ } );
371 $self->db_note_song_qeued($_) for @list;
372 $callback->(@_) if $callback;
379 method prepare_to_wait_idle {
380 $log->trace('declaring idle mode');
381 $mpd->send('idle database playlist')->on_done(
385 use JSON; warn to_json($result);
387 if ( $result->{changed} eq 'database' ) {
389 $self->prepare_to_wait_idle;
391 elsif ( $result->{changed} eq 'playlist' ) {
392 $self->queue_songs( undef,
393 sub { $self->prepare_to_wait_idle } );
398 "Unknown result from idle: " . to_json($result) );
399 $self->prepare_to_wait_idle;
408 die "Connection to MPD lost";
412 $self->prepare_to_wait_idle;
416 my $feeder = Feeder->new();
419 die "Usage: mpd-feeder [option...] [command]\n";
425 my $cmd = shift @ARGV;
427 if ($cmd eq 'dump-config') {
431 # FIXME: handle blacklist manipulation
433 if ( $cmd eq 'one-shot' ) {
434 $feeder->queue_songs(undef, sub { exit });
435 $feeder->mpd->loop->run;
437 elsif ( $cmd eq 'single' ) {
438 $feeder->queue_songs(1, sub { exit });
439 $feeder->mpd->loop->run;
442 die "Unknown command '$cmd'";
447 $feeder->queue_songs( undef, sub { $feeder->run } );
449 $feeder->mpd->loop->run;