--- Webpacus/lib/Webpacus/Model/WebPAC.pm	2006/01/21 23:27:16	378
+++ Webpacus/lib/Webpacus/Model/WebPAC.pm	2006/01/22 00:44:32	379
@@ -11,6 +11,7 @@
 use File::Slurp;
 use Time::HiRes qw/time/;
 use Encode qw/encode decode from_to/;
+use Template;
 use Data::Dumper;
 
 =head1 NAME
@@ -102,7 +103,26 @@
 
 	$self->{databases} = $c->config->{databases} || $log->error("can't find databases in config");
 
-	$self->{model_record} = $c->comp('Model::Record') or $log->error("can't find Model::Record");
+	# create Template toolkit instance
+	$self->{'tt'} = Template->new(
+		INCLUDE_PATH => $template_path,
+		FILTERS => {
+			dump_html => sub {
+				return unless (@_);
+				my $out;
+				my $i = 1;
+				foreach my $v (@_) {
+					$out .= qq{<div id="dump_$i">} .
+						Data::HTMLDumper->Dump([ $v ],[ "v$i" ]) .
+						qq{</div>};
+					$i++;
+				}
+				$out =~ s!<table[^>/]*>!<table class="dump">!gis if ($out);
+				return $out;
+			}
+		},
+		EVAL_PERL => 1,
+	);
 
 	return $self;
 
@@ -208,18 +228,12 @@
 
 		$t = time();
 
-		my $html = '[no output]';
-
-		if ($self->{model_record}) {
-			$html = $self->{model_record}->apply(
-				template => $template_filename,
-				data => $ds,
-				record_uri => "${database}/${prefix}/${id}",
-				config => $self->{databases}->{$database},
-			);
-		} else {
-			$log->warn("skipped apply");
-		}
+		my $html = $self->apply(
+			template => $template_filename,
+			data => $ds,
+			record_uri => "${database}/${prefix}/${id}",
+			config => $self->{databases}->{$database},
+		);
 
 		$times->{out} += time() - $t;
 
@@ -279,7 +293,7 @@
 		return;
 	}
 
-	my $html = $self->{model_record}->apply(
+	my $html = $self->apply(
 		template => $args->{template},
 		data => $ds,
 		record_uri => $args->{record_uri},
@@ -348,6 +362,249 @@
 	return decode($self->{webpac_encoding}, $content);
 }
 
+
+=head2 apply
+
+Create output from in-memory data structure using Template Toolkit template.
+
+ my $text = $tt->apply(
+ 	template => 'text.tt',
+	data => $ds,
+	record_uri => 'database/prefix/mfn',
+ );
+
+It also has follwing template toolikit filter routies defined:
+
+=cut
+
+sub apply {
+	my $self = shift;
+
+	my $args = {@_};
+
+	my $log = $self->{log} || die "no log?";
+
+	foreach my $a (qw/template data/) {
+		$log->logconfess("need $a") unless ($args->{$a});
+	}
+
+=head3 tt_filter_type
+
+filter to return values of specified from $ds, usage from TT template is in form
+C<d('FieldName','delimiter')>, where C<delimiter> is optional, like this:
+
+  [% d('Title') %]
+  [% d('Author',', ' %]
+
+=cut
+
+	sub tt_filter_type {
+		my ($data,$type) = @_;
+		
+		die "no data?" unless ($data);
+		$type ||= 'display';
+
+		my $default_delimiter = {
+			'display' => '&#182;<br/>',
+			'index' => '\n',
+		};
+
+		return sub {
+
+			my ($name,$join) = @_;
+
+			die "no data hash" unless ($data->{'data'} && ref($data->{'data'}) eq 'HASH');
+			# Hm? Should we die here?
+			return unless ($name);
+
+			my $item = $data->{'data'}->{$name} || return;
+
+			my $v = $item->{$type} || return;
+
+			if (ref($v) eq 'ARRAY') {
+				if ($#{$v} == 0) {
+					$v = $v->[0];
+				} else {
+					$join = $default_delimiter->{$type} unless defined($join);
+					$v = join($join, @{$v});
+				}
+			} else {
+				warn("TT filter $type(): field $name values aren't ARRAY, ignoring");
+			}
+
+			return $v;
+		}
+	}
+
+	$args->{'d'} = tt_filter_type($args, 'display');
+	$args->{'display'} = tt_filter_type($args, 'display');
+
+=head3 tt_filter_search
+
+filter to return links to search, usage in TT:
+
+  [% search('FieldToDisplay','FieldToSearch','optional delimiter', 'optional_template.tt') %]
+
+=cut
+
+	sub tt_filter_search {
+
+		my ($data) = @_;
+
+		die "no data?" unless ($data);
+		
+		return sub {
+
+			my ($display,$search,$delimiter,$template) = @_;
+			
+			# default delimiter
+			$delimiter ||= '&#182;<br/>',
+
+			die "no data hash" unless ($data->{'data'} && ref($data->{'data'}) eq 'HASH');
+			# Hm? Should we die here?
+			return unless ($display);
+
+			my $item = $data->{'data'}->{$display} || return;
+
+			return unless($item->{'display'});
+			if (! $item->{'search'}) {
+				warn "error in TT template: field $display didn't insert anything into search, use d('$display') and not search('$display'...)";
+				return;
+			}
+
+			my @warn;
+			foreach my $type (qw/display search/) {
+				push @warn, "field $display type $type values aren't ARRAY" unless (ref($item->{$type}) eq 'ARRAY');
+			}
+
+			if (@warn) {
+				warn("TT filter search(): " . join(",", @warn) . ", skipping");
+				return;
+			}
+			my @html;
+
+			my $d_el = $#{ $item->{'display'} };
+			my $s_el = $#{ $item->{'search'} }; 
+
+			# easy, both fields have same number of elements or there is just
+			# one search and multiple display
+			if ( $d_el == $s_el || $s_el == 0 ) {
+
+				foreach my $i ( 0 .. $d_el ) {
+
+					my $s;
+					if ($s_el > 0) {
+						$s = $item->{'search'}->[$i] || die "can't find value $i for type search in field $search";
+					} else {
+						$s = $item->{'search'}->[0];
+					}
+					#$s =~ s/([^\w.-])/sprintf("%%%02X",ord($1))/eg;
+					$s = __quotemeta( $s );
+
+					my $d = $item->{'display'}->[$i] || die "can't find value $i for type display in field $display";
+
+					my $template_arg = '';
+					$template_arg = qq{,'$template'} if ($template);
+
+					push @html, qq{<a href="#" onclick="return search_via_link('$search','$s'${template_arg})">$d</a>};
+				}
+
+				return join($delimiter, @html);
+			} else {
+				my $html = qq{<div class="notice">WARNING: we should really support if there is $d_el display elements and $s_el search elements, but currently there is no nice way to do so, so we will just display values</div>};
+				my $v = $item->{'display'};
+
+				if ($#{$v} == 0) {
+					$html .= $v->[0];
+				} else {
+					$html .= join($delimiter, @{$v});
+				}
+				return $html;
+			}
+		}
+	}
+
+	$args->{'search'} = tt_filter_search($args);
+
+=head3 load_rec
+
+Used mostly for onClick events like this:
+
+  <a href="#" onClick="[% load_rec( record_uri, 'template_name.tt') %]>foo</a>
+
+It will automatically do sanity checking and create correct JavaScript code.
+
+=cut
+
+	$args->{'load_rec'} = sub {
+		my @errors;
+
+		my $record_uri = shift or push @errors, "record_uri missing";
+		my $template = shift or push @errors, "template missing";
+
+		if ($record_uri !~ m#^[^/]+/[^/]+/[^/]+$#) {
+			push @errors, "invalid format of record_uri: $record_uri";
+		}
+
+		if (@errors) {
+			return "Logger.error('errors in load_rec: " . join(", ", @errors) . "'); return false;";
+		} else {
+			return "load_rec('$record_uri','$template'); return false;";
+		}
+	};
+
+=head3 load_template
+
+Used to re-submit search request and load results in different template
+
+  <a href="#" onClick="[% load_template( 'template_name.tt' ) %]">bar</a>
+
+=cut
+
+	$args->{'load_template'} = sub {
+		my $template = shift or return "Logger.error('load_template missing template name!'); return false;";
+		return "load_template($template); return false;";
+	};
+
+	my $out;
+
+	$self->{'tt'}->process(
+		$args->{'template'},
+		$args,
+		\$out
+	) || $log->error( "apply can't process template: ", $self->{'tt'}->error() );
+
+	return $out;
+}
+
+
+=head2 __quotemeta
+
+Helper to quote JavaScript-friendly characters
+
+=cut
+
+sub __quotemeta {
+	local $_ = shift;
+	$_ = decode('iso-8859-2', $_);
+
+	s<([\x{0080}-\x{fffd}]+)>{sprintf '\u%0*v4X', '\u', $1}ge if ( Encode::is_utf8($_) );
+	{
+		use bytes;  
+		s<((?:[^ \x21-\x7E]|(?:\\(?!u)))+)>{sprintf '\x%0*v2X', '\x', $1}ge;
+	}
+
+	s/\\x09/\\t/g;
+	s/\\x0A/\\n/g;
+	s/\\x0D/\\r/g;
+	s/"/\\"/g;
+	s/\\x5C/\\\\/g;
+
+	return $_;
+}
+
+
+
 =head1 AUTHOR
 
 Dobrica Pavlinusic C<< <dpavlin@rot13.org> >>