use strict;
use warnings;
+use feature 'switch';
+use ID3FS::PathElement::Artist;
+use ID3FS::PathElement::Album;
+use ID3FS::PathElement::Boolean;
+use ID3FS::PathElement::File;
+use ID3FS::PathElement::Tag;
+use ID3FS::PathElement::Tagval;
+
+our ($STATE_INVALID, $STATE_ROOT, $STATE_TAG, $STATE_TAGVAL,
+ $STATE_BOOLEAN, $STATE_ALBUMS, $STATE_TRACKLIST,
+ $STATE_FILE)=(0..7);
sub new
{
$self->{db}=shift;
$self->{path}=shift;
-
+ $self->parse();
+ print "STATE: ", $self->state(), "\n";
return $self;
}
sub isdir
{
my($self)=@_;
- return 1 if($self->{path} eq "/");
+ if(($self->state() == $STATE_FILE) ||
+ ($self->state() == $STATE_INVALID))
+ {
+ return 0;
+ }
+ return 1;
+}
+
+sub isfile
+{
+ my($self)=@_;
+ return 1 if($self->state() == $STATE_FILE);
return 0;
}
+sub isvalid
+{
+ my($self)=@_;
+ return($self->state() != $STATE_INVALID);
+}
+
sub dest
{
my($self)=@_;
- return "FIXME";
+ if($self->state() == $STATE_FILE)
+ {
+ return $self->{db}->filename(@{$self->{elements}});
+ }
+ return "ERROR"; #should never happen?
}
sub dirents
{
my($self)=@_;
- return $self->{db}->tags();
+ my @dents=();
+ given($self->state())
+ {
+ when($STATE_TAG)
+ {
+ @dents=(qw(AND ALLTRACKS), # FIXME: NOT and OR
+ $self->{db}->artists(@{$self->{elements}}));
+ }
+ when($STATE_BOOLEAN)
+ {
+ @dents=$self->{db}->tags(@{$self->{elements}});
+ }
+ when($STATE_ROOT)
+ {
+ @dents=("ALL", $self->{db}->tags(@{$self->{elements}}));
+ }
+ when($STATE_ALBUMS)
+ {
+ @dents=("TRACKS", $self->{db}->albums(@{$self->{elements}}));
+ }
+ when($STATE_TRACKLIST)
+ {
+ @dents=$self->{db}->tracks(@{$self->{elements}});
+ }
+ default
+ {
+ print "DIRENTS: UNHANDLED STATE: $_\n";
+ }
+ }
+ return(@dents);
+}
+
+sub parse
+{
+ my($self)=@_;
+ @{$self->{components}}=split(/\//, $self->{path});
+ shift @{$self->{components}}; # drop empty field before leading /
+ print "PATH: $self->{path}\n";
+# print "COMPONENTS: ", join(' | ', @{$self->{components}}), "\n";
+ $self->state($STATE_ROOT);
+ return if($self->{path} eq "/");
+ my @parts=@{$self->{components}};
+ my($tag, $tagval);
+ $self->{elements}=[];
+ while(my $name=shift @parts)
+ {
+ print "NAME: $name\n";
+ given($self->state())
+ {
+ when($STATE_INVALID)
+ {
+ print "SM: INVALID: $name\n";
+ return;
+ }
+ when($STATE_ROOT)
+ {
+ print "SM: ROOT: $name\n";
+ if($name eq "ALL")
+ {
+ $self->state($STATE_TAG);
+ }
+ else
+ {
+ $tag=ID3FS::PathElement::Tag->new($self->{db}, $name);
+ if($tag)
+ {
+ push(@{$self->{elements}}, $tag);
+ $self->state($STATE_TAG);
+ }
+ else
+ {
+ $self->state($STATE_INVALID);
+ }
+ }
+ }
+ when($STATE_TAG)
+ {
+ print "SM: TAG: $name\n";
+ given($name)
+ {
+ when("AND")
+ {
+ $self->state($STATE_BOOLEAN);
+# push(@{$self->{elements}}, ID3FS::PathElement::Boolean->new($name));
+ }
+ when("ALLTRACKS")
+ {
+ $self->state($STATE_TRACKLIST);
+ }
+ when("OR")
+ {
+ $self->state($STATE_BOOLEAN);
+# push(@{$self->{elements}}, ID3FS::PathElement::Boolean->new($name));
+ }
+ when("NOT")
+ {
+ $self->state($STATE_TAG);
+# push(@{$self->{elements}}, ID3FS::PathElement::Boolean->new($name));
+ }
+ my $artist=ID3FS::PathElement::Artist->new($self->{db}, $name);
+ if($artist)
+ {
+ push(@{$self->{elements}}, $artist);
+ $self->state($STATE_ALBUMS);
+ }
+ else
+ {
+ $self->state($STATE_INVALID);
+ }
+ }
+ }
+
+# when(255) #FIXME - dead code
+# {
+# my @valid_tagvals=$self->{db}->tag_values($tag);
+# print "TAGVALUES: $name: ", join(', ', @valid_tagvals), "\n";
+# if(@valid_tagvals)
+# {
+# if(grep { $name eq $_; } @valid_tagvals)
+# {
+# print "TAGVAL VALID\n";
+# $self->state($STATE_TAGVAL);
+# push(@{$self->{elements}}, ID3FS::PathElement::Tagval($name));
+# }
+# else
+# {
+# print "ERROR: unknown tagval: $tagval\n";
+# $self->state($STATE_INVALID);
+# }
+# }
+ when($STATE_TAGVAL)
+ {
+ print "SM: TAGVAL: $name\n";
+ }
+ when($STATE_BOOLEAN)
+ {
+ print "SM: BOOLEAN: $name\n";
+ my $tag=ID3FS::PathElement::Tag->new($self->{db}, $name);
+ if($tag)
+ {
+ push(@{$self->{elements}}, $tag);
+ $self->state($STATE_TAG);
+ }
+ else
+ {
+ $self->state($STATE_INVALID);
+ }
+ }
+ when($STATE_ALBUMS)
+ {
+ print "SM: ALBUM: $name\n";
+ if($name eq "TRACKS")
+ {
+ $self->state($STATE_TRACKLIST);
+ }
+ else
+ {
+ my $album=ID3FS::PathElement::Album->new($self->{db}, $name);
+ push(@{$self->{elements}}, $album);
+ if($album)
+ {
+ push(@{$self->{elements}}, $album);
+ $self->state($STATE_TRACKLIST);
+ }
+ else
+ {
+ $self->state($STATE_INVALID);
+ }
+ }
+ }
+ when($STATE_TRACKLIST)
+ {
+ print "SM: TRACKLIST: $name\n";
+ my $track=ID3FS::PathElement::File->new($self->{db}, $name);
+ push(@{$self->{elements}}, $track);
+ if($track)
+ {
+ push(@{$self->{elements}}, $track);
+ $self->state($STATE_FILE);
+ }
+ else
+ {
+ $self->state($STATE_INVALID);
+ }
+ }
+ when($STATE_FILE)
+ {
+ print "SM: FILE: $name\n";
+ # Can't have anything after a filename
+ $self->state($STATE_INVALID);
+ }
+ default
+ {
+ print "SM: ERROR: UNKNOWN STATE: $self->{state}\n";
+ $self->state($STATE_INVALID);
+ }
+ }
+ }
}
+sub state
+{
+ my($self, $newstate)=@_;
+ $self->{state}=$newstate if(defined($newstate));
+ return $self->{state};
+}
1;
projects / id3fs.git / blobdiff