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#!/usr/bin/env perl
use Net::MPD;
use v5.10;
use File::stat;
use Data::Dumper;
use warnings;
use IO::Select;
use File::Basename;
use strict;
use IPC::Run qw( timeout start );
use autodie;
use utf8;
use File::Slurper 'read_binary';
binmode(STDOUT, ":utf8");
use Data::MessagePack;
use Config::Simple;
my $config_file = $ENV{'HOME'} . "/.config/clerk/clerk.conf";
# read configuration file
my $cfg = new Config::Simple(filename=>"$config_file");
my $general_cfg = $cfg->param(-block=>"General");
my $mpd_host = $general_cfg->{mpd_host};
my $db_file = $general_cfg->{database};
my $backend = $general_cfg->{backend};
my $columns_cfg = $cfg->param(-block=>"Columns");
my $albumartist_l = $columns_cfg->{albumartist_l};
my $album_l = $columns_cfg->{album_l};
my $date_l = $columns_cfg->{date_l};
my $title_l = $columns_cfg->{title_l};
my $track_l = $columns_cfg->{track_l};
my $artist_l = $columns_cfg->{artist_l};
# open connection to MPD
my $mpd = Net::MPD->connect($ENV{MPD_HOST} // $mpd_host // 'localhost');
sub main {
create_db();
list_tracks();
}
sub create_db {
# Get database copy and save as messagepack file, if file is either missing
# or older than latest mpd database update.
# get number of songs to calculate number of searches needed to copy mpd database
my $mpd_stats = $mpd->stats();
my $songcount = $mpd_stats->{songs};
my $last_update = $mpd_stats->{db_update};
if (!-f "$db_file" || stat("$db_file")->mtime < $last_update) {
print STDERR "::: MPD database copy missing or out of date\n";
print STDERR "::: Starting database sync\n";
print STDERR "::: Songs in database: $songcount\n";
my $times = int($songcount / 1000 + 1);
print STDERR "==> Requesting $times chunks from MPD\n";
my @db;
# since mpd will silently fail, if response is larger than command buffer, let's split the search.
my $chunk_size = 1000;
for (my $i=0;$i<=$songcount;$i+=$chunk_size) {
my $endnumber = $i+$chunk_size;
my @temp_db = $mpd->search('filename', '', 'window', "$i:$endnumber");
push @db, @temp_db;
}
# only save relevant tags to keep messagepack file small
# note: maybe use a proper database instead? See list_album function.
my @filtered = map { {$_->%{'Album', 'Artist', 'Date', 'AlbumArtist', 'Title', 'Track', 'uri', 'Last-Modified'}} } @db;
pack_msgpack(\@filtered);
}
print STDERR "::: MPD database copy up to date\n";
}
# sub backend_call {
# my ($in) = @_;
# my $input = join "", (@{$in});
# my $out;
# my %backends = (
# fzf => [ qw(fzf --reverse --no-sort -m -e -i --with-nth=1,2,3 -d "\t" --tabstop=4 +s --ansi --expect=alt-v,alt-b) ],
# rofi => [qw(rofi -dmenu -width 1800)]);
# my $handle = run (($backends{$backend} // die('backend not found')), \$input, \$out) or die('No selection');
#
# return $out;
# }
sub backend_call {
my ($in) = @_;
my $input;
my $out;
my %backends = ( fzf => [ 'fzf', '--reverse', '--no-sort', '-m', '-e', '-i', '--with-nth=1,2,3', '-d', '\t', '--tabstop=4', '+s', '--ansi' ], rofi => ['rofi', '-width', '1300', '-dmenu', '-i', '-p', '> ']);
my $handle = start $backends{$backend} // die('backend not found'), \$input, \$out;
$input = join "", (@{$in});
finish $handle or die "No selection";
return $out;
}
sub pack_msgpack {
my ($filtered_db) = @_;
my $msg = Data::MessagePack->pack($filtered_db);
my $filename = "$db_file";
open(my $out, '>:raw', $filename) or die "Could not open file '$filename' $!";
print $out $msg;
close $out;
}
sub unpack_msgpack {
my $mp = Data::MessagePack->new->utf8();
my $msgpack = read_binary("$db_file");
my $rdb = $mp->unpack($msgpack);
return $rdb;
}
# read messagepack file and output strings
sub list_albums {
print STDERR "::: Creating list of albums\n";
my $rdb = unpack_msgpack();
my @album_db = do {my %seen; grep { !defined($_->{AlbumArtist}) or !defined($_->{Album}) or
!defined($_->{Date}) or !$seen{$_->{AlbumArtist}}{$_->{Album}}{$_->{Date}}++ } @{$rdb}};
my @sorted_db = sort { lc($a->{AlbumArtist}) cmp lc($b->{AlbumArtist}) } @album_db;
# push list to rofi and receive selected item
my @output;
my $in;
for my $entry (@sorted_db) {
my $album_dir = dirname($entry->{uri});
$album_dir =~ s/\/CD.*$//g;
$in = sprintf "%-${albumartist_l}.${albumartist_l}s\t%-${date_l}.${date_l}s\t%-${album_l}.${album_l}s\t%s\n", $entry->{AlbumArtist},$entry->{Date}, $entry->{Album}, $album_dir;
push @output, $in;
}
my $out = backend_call(\@output);
print $out;
# call rofi function to display possible actions
my @action_items = ("Add\n", "Insert\n", "Replace\n");
my $action = backend_call(\@action_items);
# split output into tag variables and remove possible whitespace
if ($action eq "Add\n") {
my $line;
foreach my $line (split /\n/, $out) {
my $uri = (split /[\t\n]/, $line)[-1];
my ($artist, $date, $album) = map { s/\s+$//r } split /[\t\n]/, $line;
print STDERR "::: Selected album \"$album\" from \"$artist\" released in $date\n";
print STDERR "==> Adding selected album(s) to current playlist\n";
$mpd->add($uri);
}
}
elsif ($action eq "Replace\n") {
my $uri = (split /[\t\n]/, $out)[-1];
my ($artist, $date, $album) = map { s/\s+$//r } split /[\t\n]/, $out;
print STDERR "==> Replacing current playlist with selected album(s)\n";
$mpd->clear();
$mpd->search_add('Artist' => $artist, 'Album' => $album, 'Date' => $date);
$mpd->play();
}
list_albums();
}
sub list_tracks {
print STDERR "::: Creating list of tracks\n";
my $rdb = unpack_msgpack();
my @output;
my $in;
for my $entry (@{$rdb}) {
$in = sprintf "%-${track_l}.${track_l}s\t%-${title_l}.${title_l}s\t%-${artist_l}.${artist_l}s\t%-${album_l}.${album_l}s\t%-s\n", $entry->@{qw/Track Title Artist Album uri/};
push @output, $in;
}
my $out = backend_call(\@output);
my $uri = (split /[\t\n]/, $out)[-1];
my $songinfo = $mpd->search('filename' => $uri);
my ($artist, $album, $title, $track, $date) = $songinfo->@{qw/Artist Album Title Track Date/};
print "::: Selected \"$title\" from artist \"$artist\" of album \"$album\"\n";
my @action_items = ("Add\n", "Insert\n", "Replace\n");
my $action = backend_call(\@action_items);
if ($action eq "Add\n") {
print "debug test text";
print STDERR "==> Adding selected track to current playlist\n";
$mpd->search_add('Artist' => $artist, 'Album' => $album, 'Title' => $title, 'Date' => $date);
}
elsif ($action eq "Replace\n") {
print STDERR "==> Replacing current playlist with selected track\n";
$mpd->clear();
$mpd->search_add('Artist' => $artist, 'Album' => $album, 'Title' => $title, 'Date' => $date);
$mpd->play();
}
}
main;
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