use strict;
use warnings;
+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() == $STATE_FILE);
return 0;
}
-sub dest
+sub isvalid
{
my($self)=@_;
- return "FIXME";
+ return($self->state() != $STATE_INVALID);
+}
+
+sub dest
+{
+ my($self, $mountpoint)=@_;
+ if($self->state() == $STATE_FILE)
+ {
+ return $self->{db}->filename($mountpoint, @{$self->{elements}});
+ }
+ return "ERROR"; #should never happen?
}
sub dirents
{
my($self)=@_;
- return $self->{db}->tags();
+ my @dents=();
+ my $state=$self->state();
+# print "DIRENTS: STATE: $state\n";
+# print "DIRENTS: FILE: $self->{path}\n";
+ if($state==$STATE_TAG || $state==$STATE_TAGVAL)
+ {
+ my $tag=$self->{elements}->[$#{$self->{elements}}];
+ if($state==$STATE_TAG &&
+ defined($tag) &&
+ ref($tag) eq "ID3FS::PathElement::Tag" &&
+ $self->{db}->tag_has_values($tag->{id}))
+ {
+ @dents=$self->{db}->tags(@{$self->{elements}});
+ }
+ else
+ {
+ @dents=(qw(AND OR TRACKS NOARTIST),
+ $self->{db}->artists(@{$self->{elements}}));
+ }
+ }
+ elsif($state==$STATE_BOOLEAN)
+ {
+ my $parent=$self->{elements}->[$#{$self->{elements}}];
+ unless(defined($parent) &&
+ ref($parent) eq "ID3FS::PathElement::Boolean" &&
+ $parent->{name} eq "NOT")
+ {
+ push(@dents, "NOT");
+ }
+ push(@dents, $self->{db}->tags(@{$self->{elements}}));
+ }
+ elsif($state==$STATE_ROOT)
+ {
+ @dents=(qw(ALL NOT), $self->{db}->tags(@{$self->{elements}}));
+ }
+ elsif($state==$STATE_ALBUMS)
+ {
+ @dents=(qw(TRACKS NOALBUM),$self->{db}->albums(@{$self->{elements}}));
+ }
+ elsif($state==$STATE_TRACKLIST)
+ {
+ @dents=$self->{db}->tracks(@{$self->{elements}});
+ }
+ else
+ {
+ print "DIRENTS: UNHANDLED STATE: $state\n";
+ }
+ return(@dents);
+}
+
+sub parse
+{
+ my($self)=@_;
+ @{$self->{components}}=split(/\//, $self->{path});
+ shift @{$self->{components}}; # drop empty field before leading /
+# print "PATH: $self->{path}\n";
+ $self->state($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";
+ my $state=$self->state();
+ if($state==$STATE_INVALID)
+ {
+# print "SM: INVALID: $name\n";
+ return;
+ }
+ elsif($state==$STATE_ROOT)
+ {
+# print "SM: ROOT: $name\n";
+ if($name eq "ALL")
+ {
+ $self->state($STATE_TAG);
+ }
+ elsif($name eq "NOT")
+ {
+ push(@{$self->{elements}}, ID3FS::PathElement::Boolean->new($self->{db}, $name));
+ $self->state($STATE_BOOLEAN);
+ }
+ else
+ {
+ $tag=ID3FS::PathElement::Tag->new($self->{db}, $name);
+ if($tag)
+ {
+ push(@{$self->{elements}}, $tag);
+ $self->state($STATE_TAG);
+ }
+ else
+ {
+ $self->state($STATE_INVALID);
+ }
+ }
+ }
+ elsif($state==$STATE_TAG || $state==$STATE_TAGVAL)
+ {
+# print "SM: TAG/TAGVAL($state): $name\n";
+ my $tag=$self->{elements}->[$#{$self->{elements}}];
+ if($state==$STATE_TAG &&
+ defined($tag) &&
+ ref($tag) eq "ID3FS::PathElement::Tag" &&
+ $self->{db}->tag_has_values($tag->{id}))
+ {
+ my $tagval=ID3FS::PathElement::Tag->new($self->{db}, $name, $tag->{id});
+ if(defined($tagval))
+ {
+ $self->state($STATE_TAGVAL);
+ # stay in tag state
+ push(@{$self->{elements}}, $tagval);
+ }
+ else
+ {
+ $self->state($STATE_INVALID);
+ }
+ }
+ elsif($name eq "TRACKS")
+ {
+ $self->state($STATE_TRACKLIST);
+ }
+ elsif($name eq "NOARTIST")
+ {
+ $self->state($STATE_TRACKLIST);
+ }
+ elsif($name eq "AND")
+ {
+ $self->state($STATE_BOOLEAN);
+ push(@{$self->{elements}}, ID3FS::PathElement::Boolean->new($self->{db}, $name));
+ }
+ elsif($name eq "OR")
+ {
+ $self->state($STATE_BOOLEAN);
+ push(@{$self->{elements}}, ID3FS::PathElement::Boolean->new($self->{db}, $name));
+ }
+ else
+ {
+ my $artist=ID3FS::PathElement::Artist->new($self->{db}, $name);
+ if($artist)
+ {
+ push(@{$self->{elements}}, $artist);
+ $self->state($STATE_ALBUMS);
+ }
+ else
+ {
+ $self->state($STATE_INVALID);
+ }
+ }
+ }
+ elsif($state==$STATE_BOOLEAN)
+ {
+# print "SM: BOOLEAN: $name\n";
+ my $parent=$self->{elements}->[$#{$self->{elements}}];
+ my $allownot=1;
+ if(defined($parent) &&
+ ref($parent) eq "ID3FS::PathElement::Boolean" &&
+ $parent->{name} eq "NOT")
+ {
+ $allownot=0;
+ }
+ if($allownot && $name eq "NOT")
+ {
+ $self->state($STATE_BOOLEAN);
+ push(@{$self->{elements}}, ID3FS::PathElement::Boolean->new($self->{db}, $name));
+ }
+ else
+ {
+ my $tag=ID3FS::PathElement::Tag->new($self->{db}, $name);
+ if($tag)
+ {
+ push(@{$self->{elements}}, $tag);
+ $self->state($STATE_TAG);
+ }
+ else
+ {
+ $self->state($STATE_INVALID);
+ }
+ }
+ }
+ elsif($state==$STATE_ALBUMS)
+ {
+# print "SM: ALBUM: $name\n";
+ if($name eq "TRACKS")
+ {
+ $self->state($STATE_TRACKLIST);
+ }
+ elsif($name eq "NOALBUM")
+ {
+ $self->state($STATE_TRACKLIST);
+ }
+ else
+ {
+ my $album=ID3FS::PathElement::Album->new($self->{db}, $name);
+ if($album)
+ {
+ push(@{$self->{elements}}, $album);
+ $self->state($STATE_TRACKLIST);
+ }
+ else
+ {
+ $self->state($STATE_INVALID);
+ }
+ }
+ }
+ elsif($state==$STATE_TRACKLIST)
+ {
+# print "SM: TRACKLIST: $name\n";
+ my $track=ID3FS::PathElement::File->new($self->{db}, $name);
+ if($track)
+ {
+ push(@{$self->{elements}}, $track);
+ $self->state($STATE_FILE);
+ }
+ else
+ {
+ $self->state($STATE_INVALID);
+ }
+ }
+ elsif($state==$STATE_FILE)
+ {
+# print "SM: FILE: $name\n";
+ # Can't have anything after a filename
+ $self->state($STATE_INVALID);
+ }
+ else
+ {
+ 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