#=======================================================================
#  Module for using HTML::Template for generating output
#    $Id: TemplateHTMLTemplate.pm,v 1.3 2003/12/18 05:00:37 whmoseley Exp $
#
#  This module probably does not automatically support all the features
#  of the swish.cgi script (such as selecting index files).  See
#  the TemplateToolkit.pm module for examples.
#
#=======================================================================
package SWISH::TemplateHTMLTemplate;
use strict;

use HTML::Template;
use HTML::FillInForm;
use CGI ();

use vars '$Template';

use SWISH::TemplateDefault;  # ugly hack


sub show_template {
    my ( $class, $template_params, $results ) = @_;

    my $cgi = $results->CGI;


    my $template = HTML::Template->new( %{$template_params->{options}} );

    # I like scoping in Template Toolkit much better.
    my $page_array = $results->navigation('page_array');
    if ( ref $page_array ) {
        $_->{QUERY_HREF} = $results->{query_href}
            for @$page_array;
    }

    my %params = (
        TITLE           => ($results->config('title') || 'Search Page'),
        QUERY_SIMPLE    => CGI::escapeHTML( $results->{query_simple} ),
        MESSAGE         => CGI::escapeHTML( $results->errstr ),
        QUERY_HREF      => $results->{query_href},
        MY_URL          => $cgi->script_name,
        MOD_PERL        => $ENV{MOD_PERL},
        DATE_RANGES     => $results->get_date_ranges,
    );

    if ( $results->results ) {

        %params = ( %params,
            FILES           => $results->results,
            HITS            => $results->navigation('hits'),
            FROM            => $results->navigation('from'),
            TO              => $results->navigation('to'),
            SHOWING         => $results->navigation('showing'),

            PAGES           => $results->navigation('pages'),

            NEXT            => $results->navigation('next'),
            NEXT_COUNT      => $results->navigation('next_count'),
            PREV            => $results->navigation('prev'),
            PREV_COUNT      => $results->navigation('prev_count'),
        

            RUN_TIME        => $results->navigation('run_time'),
            SEARCH_TIME     => $results->navigation('search_time'),
        );

        $params{PAGE_ARRAY} = $page_array if $results->navigation('pages');

        my $display_props = load_display_properties( $results );
        $params{PROPERTIES} = $display_props if $display_props;
            
    };

    my $params = \%params;

    my $MapNames  = $results->config('name_labels') || {};
    my $Sorts     = $results->config('sorts');
    my $MetaNames = $results->config('metanames');


    # set a default
    if ( $MetaNames && !$cgi->param('metanames') ) {
        $cgi->param('metaname', $MetaNames->[0] );
    }

    $params->{SORTS} = [ map { { NAME => $_, LABEL => ($MapNames->{$_} || $_) } } @$Sorts ] if $Sorts;
    $params->{METANAMES} = [ map { { NAME => $_, LABEL => ($MapNames->{$_} || $_) } } @$MetaNames ] if $MetaNames;


    # Limit Select
    my $Limit = $results->config('select_by_meta');
    if ( $Limit ) {
        $params->{LIMIT_TITLE} = $Limit->{description} || 'Limit By';
        my $labels = $Limit->{labels} || {};
        
        $params->{LIMITS} = [ map { { VALUE => $_, LABEL => ($labels->{$_} || $_) } } @{$Limit->{values}} ] if $Limit;
    }


    $template->param( $params );
    my $page = $template->output;


    my $fif = new HTML::FillInForm;

    print $cgi->header,
          '<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">',
          $fif->fill(
            scalarref => \$page,
            fobject   => $cgi,
          );
}

# This function creates a key "PROPERTIES" in each result's hash that is 
# a hash with two keys PROP_NAME and PROP_VALUE
# Allows automatic display of properties listed in the "display_prop" config option.

sub load_display_properties {
    my $results = shift;
    my $labels = $results->config('name_labels');
    my $display_props = $results->config('display_props');
    return unless $display_props;

    for my $this_result ( @{$results->results} ) {
        $this_result->{PROPERTIES} = [ map { 
            { 
                PROP_NAME => $labels->{$_} || $_,
                PROP_VALUE => $this_result->{$_} || '',
            }
         } @$display_props ];
    }
}

   
1;