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[mpd-feeder.git] / bin / mpd-feeder
index c6792e8329cdaf4650b0d7e891d0dc2445c54b91..bc73a73aa7988ed57df18108c8281dc8d8f4f5df 100755 (executable)
 #!/usr/bin/perl
 
-use v5.32;
+use strict;
+use warnings;
+use utf8::all;
 
-use Getopt::Long ();
-use Object::Pad;
-use Syntax::Keyword::Try;
+use App::MPD::Feeder;
+use Log::Any qw($log);
+use Log::Any::Adapter Stderr => log_level => 'error';
 
-class Options {
-    use Time::Duration qw(duration_exact);
-    use Time::Duration::Parse qw(parse_duration);
-    has $target_queue_length :reader = 10;
-    has $mpd_host            :reader = undef;
-    has $mpd_port            :reader = undef;
-    has $db_path             :reader = 'mpd-feeder';
-    has $db_user             :reader = undef;
-    has $db_password         :reader = undef;
-    has $min_album_interval  :reader = parse_duration('5h');
-    has $min_song_interval   :reader = parse_duration('13d');
-    has $min_artist_interval :reader = parse_duration('1h 15m');
-    has $verbose             :reader = 0;
-    has $single              :reader = 0;
-    has $one_shot            :reader = 0;
-    has $dump_config         :reader = 0;
+my $feeder = App::MPD::Feeder->new();
 
-    method verb($message) {
-        return unless $self->opt->verbose;
-        warn "$message\n";
-    }
-    method dbg($message) {
-        return unless $self->opt->verbose > 1;
-        warn "$message\n";
-    }
-
-    method parse_command_line {
-        Getopt::Long::GetOptions(
-            'v|verbose+'                => \$verbose,
-            'dump-config!'              => \$dump_config,
-            's|single!'                 => \$single,
-            'one-shot!'                 => \$one_shot,
-            'tql|target-queue-length=n' => \$target_queue_length,
-            'mpd-host=s'                => \$mpd_host,
-            'mpd-port=s'                => \$mpd_port,
-            'db-path=s'                 => \$db_path,
-            'db-user=s'                 => \$db_user,
-            'min-album-interval=s'        => sub {
-                $min_album_interval = parse_duration(pop);
-            },
-            'min-sing-interval=s' => sub {
-                $min_song_interval = parse_duration(pop);
-            },
-            'min-artist-interval=s' => sub {
-                $min_artist_interval = parse_duration(pop);
-            },
-        ) or exit 1;
-    }
-
-    sub handle_config_option( $ini, $section, $option, $target_ref,
-        $converter = undef )
-    {
-        return undef unless exists $ini->{$section}{$option};
-
-        my $value = $ini->{$section}{$option};
-
-        $value = $converter->($value) if $converter;
-
-        $$target_ref = $value;
-    }
-
-    method dump {
-        say "[mpd-feeder]";
-        say "verbose = $verbose";
-        say "";
-        say "[mpd]";
-        say "host = " . ( $mpd_host // '' );
-        say "port = " . ( $mpd_port // '' );
-        say "target-queue-length = $target_queue_length";
-        say "";
-        say "[queue]";
-        say "target-length = $target_queue_length";
-        say "min-song-interval = " . duration_exact($min_song_interval);
-        say "min-album-interval = " . duration_exact($min_album_interval);
-        say "min-artist-interval = " . duration_exact($min_artist_interval);
-        say "";
-        say "[db]";
-        say "path = " .     ( $db_path     // '' );
-        say "user = " .     ( $db_user     // '' );
-        say "password = " . ( $db_password // '' );
-    }
-
-    method parse_config_file($path) {
-        use Config::INI::Reader;
-        my $ini = Config::INI::Reader->read_file($path);
-
-        handle_config_option( $ini => mpd => host => \$mpd_host );
-        handle_config_option( $ini => mpd => port => \$mpd_port );
-
-        handle_config_option( $ini => 'mpd-feeder' => verbose => \$verbose );
-
-        handle_config_option(
-            $ini => queue => 'target-length' => \$target_queue_length );
-        handle_config_option(
-            $ini => queue => 'min-song-interval' => \$min_song_interval,
-            \&parse_duration
-        );
-        handle_config_option(
-            $ini => queue => 'min-album-interval' => \$min_album_interval,
-            \&parse_duration
-        );
-        handle_config_option(
-            $ini => queue => 'min-artist-interval' => \$min_artist_interval,
-            \&parse_duration
-        );
-
-        handle_config_option( $ini => db => path     => \$db_path );
-        handle_config_option( $ini => db => user     => \$db_user );
-        handle_config_option( $ini => db => password => \$db_password );
-
-        # FIXME: complain about unknown sections/parameters
-    }
-}
-
-class Feeder {
-    has $opt :reader;
-    has $db;
-    has $db_generation;
-    has $mpd;
-
-use constant DEFAULT_CONFIG_FILE => '/etc/mpd-feeder/mpd-feeder.conf';
-
-    ADJUST {
-        $opt = Options->new;
-
-        {
-            my $cfg_file;
-            Getopt::Long::Configure('pass_through');
-            Getopt::Long::GetOptions('cfg|config=s' => \$cfg_file);
-            Getopt::Long::Configure('no_pass_through');
-
-            $cfg_file //= DEFAULT_CONFIG_FILE if -e DEFAULT_CONFIG_FILE;
-
-            $opt->parse_config_file($cfg_file) if $cfg_file;
-        }
-
-        $opt->parse_command_line;
+if (@ARGV) {
+    my $cmd = shift @ARGV;
 
-        unless ($opt->dump_config) {
-            $mpd = Net::Async::MPD->new(
-                host         => $opt->mpd_host,
-                port         => $opt->mpd_port,
-                auto_connect => 1,
-            );
+    if ($cmd eq 'dump-config') {
+        die "dump-config command accepts no arguments\n" if @ARGV;
 
-            $self->connect_db;
-            $self->update_db;
-        }
-    }
-
-    method connect_db {
-        return if $db;
-
-        $db =
-            DBI->connect( "dbi:Pg:dbname=" . $opt->db_path,
-            $opt->db_user, $opt->db_password,
-            { RaiseError => 1, AutoCommit => 1 } );
-
-        $db_generation = $self->db_get_option('generation');
+        $feeder->opt->dump;
+        exit;
     }
 
-    method db_get_option($name) {
-        my $sth = $db->prepare_cached("select $name from options");
-        $sth->execute;
-        my @result = $sth->fetchrow_array;
-
-        return $result[0];
-    }
-
-    method db_set_option( $name, $value ) {
-        my $sth = $db->prepare_cached("update options set $name = ?");
-        $sth->execute($value);
-    }
-
-    method db_store_song($song, $artist, $album) {
-        return unless length($song) and length($artist) and length($album);
-
-        $db->prepare_cached(
-            <<'SQL')->execute( $song, $artist, $album, $db_generation );
-INSERT INTO songs(path, artist, album, generation)
-VALUES($1, $2, $3, $4)
-ON CONFLICT ON CONSTRAINT songs_pkey DO
-UPDATE SET artist = $2
-         , album = $3
-         , generation = $4
-SQL
-        $db->prepare_cached(<<'SQL')->execute( $artist, $album, $db_generation );
-INSERT INTO albums(artist, album, generation)
-VALUES($1, $2, $3)
-ON CONFLICT ON CONSTRAINT albums_pkey DO
-UPDATE SET generation = $3
-SQL
-        $db->prepare_cached(<<'SQL')->execute( $artist, $db_generation );
-INSERT INTO artists(artist, generation)
-VALUES($1, $2)
-ON CONFLICT ON CONSTRAINT artists_pkey DO
-UPDATE SET generation = $2
-SQL
-    }
-
-    method db_remove_stale_entries {
-        $db->prepare_cached('DELETE FROM songs WHERE generation <> ?')
-            ->execute($db_generation);
-        $db->prepare_cached('DELETE FROM albums WHERE generation <> ?')
-            ->execute($db_generation);
-        $db->prepare_cached('DELETE FROM artists WHERE generation <> ?')
-            ->execute($db_generation);
-    }
-
-    method db_note_song_qeued($item) {
-        $db->prepare_cached(
-            'UPDATE songs SET last_queued=current_timestamp WHERE path=?')
-            ->execute( $item->{song} );
-        $db->prepare_cached(
-            'UPDATE artists SET last_queued=CURRENT_TIMESTAMP WHERE artist=?')
-            ->execute( $item->{artist} );
-        $db->prepare_cached(
-            'UPDATE albums SET last_queued=CURRENT_TIMESTAMP WHERE artist=? AND album=?'
-        )->execute( $item->{artist}, $item->{album} );
-    }
-
-    method update_db() {
-        $mpd->send('listallinfo')->on_done(
-            sub {
-                try {
-                    $db->begin;
-
-                    $db_generation++;
-
-                    my ($song, $artist, $album);
-
-                    foreach my $row (@_) {
-                        chomp($row);
-
-                        if ($row =~ s/^file:\s*//) {
-                            $self->db_store_song( $song, $artist, $album );
-                            $song = $row;
-                            $artist = $album = undef;
-                        }
-                        elsif ( $row =~ s/^Artist:\s*// ) {
-                            $artist = $row;
-                        }
-                        elsif ( $row =~ s/^Album:\s*// ) {
-                            $album = $row;
-                        }
-                    }
-
-                    $self->db_store_song($song, $artist, $album);
-
-                    $self->db_remove_stale_entries;
-
-                    $self->db_set_option( generation => $db_generation );
-
-                    $db->commit;
-                }
-                catch {
-                    my $err = $@;
-
-                    $db_generation--;
-
-                    $db->rollback;
-
-                    die $err;
-                }
+    if ( $cmd eq 'add-unwanted-artist' ) {
+        die "Missing command arguments\n" unless @ARGV;
+        $feeder->set_db_needs_update(0);
+        for my $artist (@ARGV) {
+            if ( $feeder->db_add_unwanted_artist($artist) ) {
+                $log->info("Artist '$artist' added to the unwanted list\n");
+            }
+            else {
+                $log->warn("Artist '$artist' already in the unwanted list\n");
             }
-        );
-    }
-
-    method db_find_suitable_songs($num) {
-        my @result;
-        my $sth = $db->prepare_cached(<<SQL);
-SELECT s.path, s.artist, s.album
-FROM songs s
-JOIN artists ar ON ar.artist=s.artist
-JOIN albums al ON al.album=s.album
-WHERE (s.last_queued IS NULL OR s.last_queued < CURRENT_TIMESTAMP - (? || ' seconds')::interval)
-  AND (ar.last_queued IS NULL OR ar.last_queued < CURRENT_TIMESTAMP - (? || ' seconds')::interval)
-  AND (al.last_queued IS NULL OR al.last_queued < CURRENT_TIMESTAMP - (? || ' seconds')::interval)
-  AND NOT EXISTS (SELECT 1 FROM blacklisted_artists bar WHERE bar.artist = s.artist)
-  AND NOT EXISTS (SELECT 1 FROM blacklisted_albums  bal WHERE bal.album  = s.album)
-ORDER BY random()
-LIMIT ?
-SQL
-        $sth->execute(
-            $self->opt->min_song_interval,
-            $self->opt->min_artist_interval,
-            $self->opt->min_album_interval,
-            $num,
-        );
-        while ( my @row = $sth->fetchrow_array ) {
-            push @result,
-                { song => $row[0], artist => $row[1], album => $row[2] };
         }
-
-        return @result;
+        exit;
     }
 
-    method queue_songs($num = undef) {
-        if (!defined $num) {
-            $mpd->send('playlist')->on_done( sub {
-                    my $present = scalar @_;
-
-                    $self->queue_songs( $opt->target_queue_length - $present )
-                        if $present < $opt->target_queue_length;
-                } );
-        }
-        else {
-            my @list = $self->db_find_suitable_songs($num);
-
-            if (@list < $num) {
-                $mpd->loop->add(
-                    IO::Async::Timer::Countdown->new(
-                        delay     => 15,
-                        on_expire => sub { $self->queue_songs($num) },
-                    )
-                );
+    if ( $cmd eq 'del-unwanted-artist' ) {
+        die "Missing command arguments\n" unless @ARGV;
+        $feeder->set_db_needs_update(0);
+        for my $artist (@ARGV) {
+            if ( $feeder->db_del_unwanted_artist($artist) ) {
+                $log->info("Artist '$artist' deleted from the unwanted list\n");
             }
             else {
-                $mpd->send( [ map {"add $_->{song}"} @list ] );
-                $self->db_note_song_qeued($_) for @list;
+                $log->warn("Artist '$artist' is not in the unwanted list\n");
             }
         }
+        exit;
     }
-}
-
-my $feeder = Feeder->new();
-
-$feeder->opt->dump, exit if $feeder->opt->dump_config;
-
-$feeder->queue_songs(1), exit if $feeder->opt->single;
 
-# FIXME: handle blacklist manipulation
-
-$feeder->queue_songs;
+    if ( $cmd eq 'add-unwanted-album' ) {
+        die "NOT IMPLEMENTED\n";
+    }
 
-exit if $feeder->opt->one_shot;
+    if ( $cmd eq 'one-shot' ) {
+        die "one-shot command accepts no arguments\n" if @ARGV;
 
-$feeder->mpd->on(
-    database => sub {
-        $feeder->update_db;
+        $feeder->queue_songs(undef, sub { exit });
+        $feeder->mpd->loop->run;
     }
-);
+    elsif ( $cmd eq 'single' ) {
+        die "single command accepts no arguments\n" if @ARGV;
 
-$feeder->mpd->on(
-    playlist => sub {
-        $feeder->queue_songs;
+        $feeder->queue_songs(1, sub { exit });
+        $feeder->mpd->loop->run;
     }
-);
+    else {
+        die "Unknown command '$cmd'";
+    }
+}
 
-$feeder->mpd->idle(qw(database playlist));
-$feeder->mpd->get;
+$feeder->run_loop;