added time-travel
[MojoFacets.git] / lib / MojoFacets / Data.pm
index e758bbe..1662e57 100644 (file)
@@ -12,6 +12,7 @@ use Encode;
 use locale;
 use File::Find;
 use Storable;
+use Time::HiRes qw(time);
 
 our $loaded;
 our $filters;
@@ -23,11 +24,14 @@ sub index {
        die "no data dir $path" unless -d $path;
 
        my @files;
+       my $changes;
        find( sub {
                my $file = $File::Find::name;
                if ( -f $file && $file =~ m/\.(js(on)?|txt)$/ ) {
                        $file =~ s/$path\/*//;
                        push @files, $file;
+               } elsif ( -f $file && $file =~ m/([^\/]+)\.changes\/(\d+\.\d+.+)/ ) {
+                       push @{ $changes->{$1} }, $2
                } else {
                        warn "IGNORE: $file\n";
                }
@@ -37,32 +41,43 @@ sub index {
        my $size;
        $size->{$_} = -s "$path/$_" foreach @files;
 
+       if ( my $save_path = $self->session('save_path') ) {
+               $self->session( 'save_path' => 0 )
+               if ! defined $loaded->{$save_path};
+       }
+
        $self->render(
                files => [ @files ],
                size => $size,
                loaded => $loaded,
                filters => $filters,
+               dump_path => { map { $_ => $self->_dump_path($_) } @files },
+               changes => $changes,
        );
 }
 
-sub _save {
-       my ( $self, $path ) = @_;
-
-       my $name = $path;
+sub _dump_path {
+       my ( $self, $name ) = @_;
        my $dir = $self->app->home->rel_dir('data');
        $name =~ s/^$dir//;
        $name =~ s/\/+/_/g;
-       my $dump_path = '/tmp/mojo_facets.' . $name . '.storable';
+       return '/tmp/mojo_facets.' . $name . '.storable';
+}
 
+sub _save {
+       my ( $self, $path ) = @_;
+
+       my $dump_path = $self->_dump_path( $path );
        warn "save loaded to $dump_path";
        my $info = $loaded->{$path};
        store $info, $dump_path;
 
        # sync timestamp
-       my $mtime = $loaded->{$path}->{mtime};
-       utime $mtime, $mtime, $dump_path;
+       #my $mtime = $loaded->{$path}->{mtime};
+       #utime $mtime, $mtime, $dump_path;
 
        warn $dump_path, ' ', -s $dump_path, " bytes\n";
+       return $dump_path;
 }
 
 sub _load_path {
@@ -71,10 +86,17 @@ sub _load_path {
        my $full_path = $self->app->home->rel_file( 'data/' . $path );
        die "$full_path $!" unless -r $full_path;
 
+       my $dump_path = $self->_dump_path( $path );
+
        if ( defined $loaded->{$path}->{data} ) {
                my $mtime = (stat($full_path))[9];
                return if $loaded->{$path}->{mtime} == $mtime;
                warn "reload $full_path, modified ", time() - $mtime, " seconds ago\n";
+       } elsif ( -e $dump_path ) {
+               warn "dump_path $dump_path ", -s $dump_path, " bytes loading...\n";
+               my $info = retrieve $dump_path;
+               $loaded->{ $path } = $info;
+               return;
        }
 
        # we could use Mojo::JSON here, but it's too slow
@@ -213,10 +235,13 @@ sub load {
 
 sub _loaded {
        my ( $self, $name ) = @_;
-       my $path = $self->session('path');
+       my $path = $self->session('path') || $self->param('path');
+       $self->redirect_to('/data/index') unless $path;
        if ( ! defined $loaded->{$path}->{$name} ) {
-               warn "$path $name doesn't exist in loaded ",dump( $loaded );
-               $self->redirect_to('/data/index');
+               warn "$path $name isn't loaded\n";
+               $self->_load_path( $path );
+               $self->redirect_to('/data/index')
+                       unless defined $loaded->{$path}->{$name};
        }
        return $loaded->{$path}->{$name};
 }
@@ -662,33 +687,88 @@ sub edit {
        my $self = shift;
        my $content = $self->param('content');
 
-       my $i = $self->param('_row_id') || die "no _row_id";
+       my $i = $self->param('_row_id');
+       die "invalid _row_id ",dump($i) unless $i =~ m/^\d+$/;
        my $path = $self->param('path') || die "no path";
        my $name = $self->param('name') || die "no name";
+       my $status = 200; # 200 = OK, 201 = Created
 
-       if ( defined $loaded->{$path}->{data}->{items}->[$i]->{$name} ) {
+       my $data = $self->_loaded('data');
+
+       if ( defined $loaded->{$path}->{data}->{items}->[$i] ) {
+               $content =~ s/^\s+//s;
+               $content =~ s/\s+$//s;
+               my $v;
                if ( $content =~ /\xB6/ ) {     # para
-                       $content = [ split(/\s*\xB6\s*/, $content) ];
+                       $v = [ split(/\s*\xB6\s*/, $content) ];
                } else {
-                       $content = [ $content ];
+                       $v = [ $content ];
                }
 
                my $old = dump $loaded->{$path}->{data}->{items}->[$i]->{$name};
-               my $new = dump $content;
-               if ( $old ne $new ) {
-                       warn "# update $path $i $old -> $new\n";
-                       $loaded->{$path}->{data}->{items}->[$i]->{$name} = $content;
+               my $new = dump $v;
+               if ( $old ne $new
+                       && ! ( $old eq 'undef' && length($content) == 0 ) # new value empty, previous undef
+               ) {
+                       my $change = {
+                               path => $path,
+                               column => $name,
+                               pos => $i,
+                               old => $loaded->{$path}->{data}->{items}->[$i]->{$name},
+                               new => $v,
+                               time => $self->param('time') || time(),
+                               user => $self->param('user') || $ENV{'LOGNAME'},
+                       };
+                       my $change_path = $self->app->home->rel_dir('data') . '/' . $path . '.changes';
+                       mkdir $change_path unless -d $change_path;
+                       $change_path .= '/' . $change->{time};
+                       store $change, $change_path;
+                       utime $change->{time}, $change->{time}, $change_path;
+                       warn "# $change_path ", dump($change);
+
+                       warn "# change $path $i $old -> $new\n";
+                       $loaded->{$path}->{data}->{items}->[$i]->{$name} = $v;
+
+                       if ( defined $loaded->{$path}->{sorted}->{$name} ) {
+                           delete $loaded->{$path}->{sorted}->{$name};
+                               warn "# invalidate $path sorted $name\n";
+                       }
+
+                       foreach ( grep { m/$name/ } keys %{ $loaded->{$path}->{filtered} } ) {
+                           delete $loaded->{$path}->{filtered}->{$_};
+                               warn "# invalidate $path filtered $_\n";
+                       }
+
+                       $status = 201; # created
+                       $self->session('save_path' => $path);
+
                } else {
                        warn "# unchanged $path $i $old\n";
+                       $status = 304;
                }
        } else {
                $content = "$path $i $name doesn't exist\n";
-               warn "# $content\n";
+               $status = 404;
        }
 
+       warn "# edit $status $content";
+
        $self->render(
-               content => $content
+               status => $status,
+               content => $content,
        );
 }
 
+
+sub save {
+       my $self = shift;
+       my $path = $self->param('path');
+       $path  ||= $self->session('path');
+
+       my $dump_path = $self->_save( $path );
+       $self->session('save_path' => 0);
+
+       $self->redirect_to( '/data/items' );
+}
+
 1;