#!/usr/bin/perl

# Copyright 2008 Garry Collum and the Koha Development team
# Copyright 2010 BibLibre
# Copyright 2011 KohaAloha, NZ
#
# This file is part of Koha.
#
# Koha is free software; you can redistribute it and/or modify it
# under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 3 of the License, or
# (at your option) any later version.
#
# Koha is distributed in the hope that it will be useful, but
# WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with Koha; if not, see <https://www.gnu.org/licenses>.

# Script to perform searching
# Mostly copied from search.pl, see POD there
use Modern::Perl;

## STEP 1. Load things that are used in both search page and
# results page and decide which template to load, operations
# to perform, etc.
## load Koha modules
use C4::Context;
use List::MoreUtils q/any/;
use Try::Tiny;
use Encode;

use Data::Dumper;    # TODO remove

use Koha::SearchEngine::Search;
use Koha::SearchEngine::QueryBuilder;

my $searchengine = C4::Context->preference("SearchEngine");
my ( $builder, $searcher );

#$searchengine = 'Zebra'; # XXX
$builder  = Koha::SearchEngine::QueryBuilder->new( { index => 'biblios' } );
$searcher = Koha::SearchEngine::Search->new( { index => 'biblios' } );

use C4::Output    qw( output_html_with_http_headers pagination_bar output_with_http_headers );
use C4::Auth      qw( get_template_and_user get_session );
use C4::Languages qw( getlanguage getLanguages );
use C4::Search    qw( searchResults );
use C4::Search::History;
use C4::Biblio qw( GetXmlBiblio CountItemsIssued );
use C4::Koha   qw( GetItemTypesCategorized getitemtypeimagelocation GetAuthorisedValues );
use C4::Tags   qw( get_tags );
use C4::SocialData;
use C4::External::OverDrive;
use C4::External::BakerTaylor qw( image_url link_url );

use Koha::CirculationRules;
use Koha::Libraries;
use Koha::ItemTypes;
use Koha::Ratings;
use Koha::Virtualshelves;
use Koha::Library::Groups;
use Koha::Patrons;
use Koha::Plugins;
use Koha::SearchFields;

use POSIX qw(ceil floor strftime);
use URI::Escape;
use JSON qw/decode_json encode_json/;
use Business::ISBN;

# create a new CGI object
# FIXME: no_undef_params needs to be tested
use CGI qw('-no_undef_params' -utf8);
my $cgi = CGI->new;

my $branch_group_limit = $cgi->param("branch_group_limit");
if ($branch_group_limit) {
    if ( $branch_group_limit =~ /^multibranchlimit-/ ) {

        # branch_group_limit is deprecated, it should no longer be used
        # For search groups we are going to convert this branch_group_limit CGI
        # parameter into a multibranchlimit limit CGI parameter for the purposes of
        # actually performing the query
        $cgi->param(
            -name   => 'limit',
            -values => 'multibranchlimit:' . substr( $branch_group_limit, 17 )
        );
    } else {
        $cgi->append(
            -name   => 'limit',
            -values => [$branch_group_limit]
        );
    }
}

my ( $template, $borrowernumber, $cookie );

# decide which template to use
my $template_name;
my $template_type    = 'basic';
my @params           = $cgi->multi_param("limit");
my @searchCategories = $cgi->multi_param('searchcat');

my $format = $cgi->param("format") || '';
if ( $format =~ /(rss|atom|opensearchdescription)/ ) {
    $template_name = 'opac-opensearch.tt';
} elsif ( ( @params >= 1 )
    || ( defined $cgi->param("q") && $cgi->param("q") ne "" )
    || ( $cgi->param('multibranchlimit') )
    || ( $cgi->param('limit-yr') )
    || @searchCategories )
{
    $template_name = 'opac-results.tt';
} else {
    $template_name = 'opac-advsearch.tt';
    $template_type = 'advsearch';
}

$format = 'rss' if $format =~ /^rss2?$/;

# load the template
( $template, $borrowernumber, $cookie ) = get_template_and_user(
    {
        template_name   => $template_name,
        query           => $cgi,
        type            => "opac",
        authnotrequired => ( C4::Context->preference("OpacPublic") ? 1 : 0 ),
    }
);
my $patron = Koha::Patrons->find($borrowernumber);

my $lang = C4::Languages::getlanguage($cgi);

if ( $template_name eq 'opac-results.tt' ) {
    $template->param( 'COinSinOPACResults' => C4::Context->preference('COinSinOPACResults') );
}

# get biblionumbers stored in the cart
my @cart_list;

if ( $cgi->cookie("bib_list") ) {
    my $cart_list = $cgi->cookie("bib_list");
    @cart_list = split( /\//, $cart_list );
}

if ( $format eq 'rss' or $format eq 'opensearchdescription' or $format eq 'atom' ) {
    $template->param( $format => 1 );

    #NOTE: opensearchdescription doesn't actually use timestamp...
    $template->param( timestamp => strftime( "%Y-%m-%dT%H:%M:%S-00:00", gmtime ) ) if ( $format eq 'atom' );

    # FIXME - the timestamp is a hack - the biblio update timestamp should be used for each
    # entry, but not sure if that's worth an extra database query for each bib
}

#NOTE: Return now for 'opensearchdescription' BZ 32639
if ( $format && $format eq 'opensearchdescription' ) {
    my $content_type = $format;
    output_with_http_headers $cgi, $cookie, $template->output, $content_type;
    exit;
}

if ( C4::Context->preference("marcflavour") eq "UNIMARC" ) {
    $template->param( 'UNIMARC' => 1 );
} elsif ( C4::Context->preference("marcflavour") eq "MARC21" ) {
    $template->param( 'usmarc' => 1 );
}

$template->param( 'OPACNoResultsFound' => C4::Context->preference('OPACNoResultsFound') );

$template->param( OpacStarRatings => C4::Context->preference("OpacStarRatings") );

if ( C4::Context->preference('BakerTaylorEnabled') ) {
    $template->param(
        BakerTaylorEnabled      => 1,
        BakerTaylorImageURL     => &image_url(),
        BakerTaylorLinkURL      => &link_url(),
        BakerTaylorBookstoreURL => C4::Context->preference('BakerTaylorBookstoreURL'),
    );
}

## URI Re-Writing
# Deprecated, but preserved because it's interesting :-)
# The same thing can be accomplished with mod_rewrite in
# a more elegant way
#
#my $rewrite_flag;
#my $uri = $cgi->url(-base => 1);
#my $relative_url = $cgi->url(-relative=>1);
#$uri.="/".$relative_url."?";
#warn "URI:$uri";
#my @cgi_params_list = $cgi->param();
#my $url_params = $cgi->Vars;
#
#for my $each_param_set (@cgi_params_list) {
#    $uri.= join "",  map "\&$each_param_set=".$_, split("\0",$url_params->{$each_param_set}) if $url_params->{$each_param_set};
#}
#warn "New URI:$uri";
# Only re-write a URI if there are params or if it already hasn't been re-written
#unless (($cgi->param('r')) || (!$cgi->param()) ) {
#    print $cgi->redirect(     -uri=>$uri."&r=1",
#                            -cookie => $cookie);
#    exit;
#}

# load the branches

if ( $cgi->param("returntosearch") ) {
    $template->param( 'ReturnToSearch' => 1 );
}
if ( $cgi->cookie("search_path_code") ) {
    my $pathcode = $cgi->cookie("search_path_code");
    if ( $pathcode eq 'ads' ) {
        $template->param( 'ReturnPath' => '/cgi-bin/koha/opac-search.pl?returntosearch=1' );
    } elsif ( $pathcode eq 'exs' ) {
        $template->param( 'ReturnPath' => '/cgi-bin/koha/opac-search.pl?expanded_options=1&returntosearch=1' );
    } else {
        warn "ReturnPath switch error";
    }
}

my @search_groups = Koha::Library::Groups->get_search_groups( { interface => 'opac' } )->as_list;
$template->param( search_groups => \@search_groups );

if ( $template_type && $template_type eq 'advsearch' ) {

    # load the language limits (for search)
    my $languages_limit_loop = getLanguages( $lang, 1 );
    $template->param( search_languages_loop => $languages_limit_loop, );
}

# load the Type stuff
my $itemtypes = GetItemTypesCategorized;

# add translated_description to itemtypes
foreach my $itemtype ( keys %{$itemtypes} ) {

    # Itemtypes search categories don't have (yet) translated descriptions, they are auth values (and could still have no descriptions too BZ 18400)
    # If 'iscat' (see ITEMTYPECAT) then there is no itemtype and the description is not translated
    my $translated_description =
          $itemtypes->{$itemtype}->{iscat}
        ? $itemtypes->{$itemtype}->{description}
        : Koha::ItemTypes->find($itemtype)->translated_description;
    $itemtypes->{$itemtype}->{translated_description} =
        $translated_description || $itemtypes->{$itemtype}->{description} || q{};
}

# the index parameter is different for item-level itemtypes
my $itype_or_itemtype = ( C4::Context->preference("item-level_itypes") ) ? 'itype' : 'itemtype';
my @advancedsearchesloop;
my $cnt;
my $advanced_search_types = C4::Context->preference("OpacAdvancedSearchTypes") || "itemtypes";
my @advanced_search_types = split( /\|/, $advanced_search_types );

my $hidingrules = C4::Context->yaml_preference('OpacHiddenItems') // {};

my @sorted_itemtypes =
    sort { $itemtypes->{$a}->{translated_description} cmp $itemtypes->{$b}->{translated_description} } keys %$itemtypes;
foreach my $advanced_srch_type (@advanced_search_types) {
    $advanced_srch_type =~ s/^\s*//;
    $advanced_srch_type =~ s/\s*$//;
    if ( $advanced_srch_type eq 'itemtypes' ) {

        # itemtype is a special case, since it's not defined in authorized values
        my @itypesloop;
        foreach my $thisitemtype (@sorted_itemtypes) {
            next if $hidingrules->{itype}    && any { $_ eq $thisitemtype } @{ $hidingrules->{itype} };
            next if $hidingrules->{itemtype} && any { $_ eq $thisitemtype } @{ $hidingrules->{itemtype} };
            my %row = (
                number         => $cnt++,
                ccl            => "$itype_or_itemtype,phr",
                code           => $thisitemtype,
                description    => $itemtypes->{$thisitemtype}->{translated_description},
                imageurl       => getitemtypeimagelocation( 'opac', $itemtypes->{$thisitemtype}->{'imageurl'} ),
                cat            => $itemtypes->{$thisitemtype}->{'iscat'},
                hideinopac     => $itemtypes->{$thisitemtype}->{'hideinopac'},
                searchcategory => $itemtypes->{$thisitemtype}->{'searchcategory'},
            );
            if ( !$itemtypes->{$thisitemtype}->{'hideinopac'} ) {
                push @itypesloop, \%row;
            }
        }
        my %search_code = (
            advanced_search_type => $advanced_srch_type,
            code_loop            => \@itypesloop
        );
        push @advancedsearchesloop, \%search_code;
    } else {

        # covers all the other cases: non-itemtype authorized values
        my $advsearchtypes = GetAuthorisedValues( $advanced_srch_type, 'opac' );
        my @authvalueloop;
        for my $thisitemtype (@$advsearchtypes) {
            my $hiding_key = lc $thisitemtype->{category};
            $hiding_key = "location" if $hiding_key eq 'loc';
            next
                if $hidingrules->{$hiding_key} && any { $_ eq $thisitemtype->{authorised_value} }
                @{ $hidingrules->{$hiding_key} };
            my %row = (
                number         => $cnt++,
                ccl            => $advanced_srch_type,
                code           => $thisitemtype->{authorised_value},
                description    => $thisitemtype->{'lib_opac'} || $thisitemtype->{'lib'},
                searchcategory => $itemtypes->{$thisitemtype}->{'searchcategory'},
                imageurl       => getitemtypeimagelocation( 'opac', $thisitemtype->{'imageurl'} ),
            );
            push @authvalueloop, \%row;
        }
        my %search_code = (
            advanced_search_type => $advanced_srch_type,
            code_loop            => \@authvalueloop
        );
        push @advancedsearchesloop, \%search_code;
    }
}
$template->param( advancedsearchesloop => \@advancedsearchesloop );

my $default_sort_by = C4::Context->default_catalog_sort_by;

# The following should only be loaded if we're bringing up the advanced search template
if ( $template_type && $template_type eq 'advsearch' ) {

    # load the servers (used for searching -- to do federated searching, etc.)
    my $primary_servers_loop;    # = displayPrimaryServers();
    $template->param( outer_servers_loop => $primary_servers_loop, );

    my $secondary_servers_loop;
    $template->param( outer_sup_servers_loop => $secondary_servers_loop, );

    # set the default sorting
    if ($default_sort_by) {
        $template->param( sort_by => $default_sort_by );
    }

    my @advsearch_limits      = split /,/, C4::Context->preference('OpacAdvSearchOptions');
    my @advsearch_more_limits = split /,/,
        C4::Context->preference('OpacAdvSearchMoreOptions');
    $template->param(
        uc( C4::Context->preference("marcflavour") ) => 1,                         # we already did this for UNIMARC
        advsearch                                    => 1,
        OpacAdvSearchOptions                         => \@advsearch_limits,
        OpacAdvSearchMoreOptions                     => \@advsearch_more_limits,
    );

    # use the global setting by default
    if ( C4::Context->preference("expandedSearchOption") == 1 ) {
        $template->param( expanded_options => C4::Context->preference("expandedSearchOption") );
    }

    # but let the user override it
    if ( defined $cgi->param('expanded_options') ) {
        if ( ( $cgi->param('expanded_options') == 0 ) || ( $cgi->param('expanded_options') == 1 ) ) {
            $template->param( expanded_options => scalar $cgi->param('expanded_options') );
        }
    }

    output_html_with_http_headers $cgi, $cookie, $template->output;
    exit;
}

### OK, if we're this far, we're performing an actual search

# Fetch the parameter list as a hash in scalar context:
#  * returns parameter list as tied hash ref
#  * we can edit the values by changing the key
#  * multivalued CGI parameters are returned as a packaged string separated by "\0" (null)
my $params = $cgi->Vars;
my $tag;
if ( $params->{tag} ) {
    $tag = $params->{tag};
    $template->param( tag => $tag );
}

# String with params with the search criteria for the paging in opac-detail
# param value is URI encoded and params separator is HTML encode (&amp;)
my $pasarParams = '';
my $j           = 0;
for ( keys %$params ) {
    my @pasarParam = $cgi->multi_param($_);
    for my $paramValue (@pasarParam) {
        $pasarParams .= '&amp;' if ( $j > 0 );
        $pasarParams .= uri_escape_utf8($_) . '=' . uri_escape_utf8($paramValue);
        $j++;
    }
}

# Params that can have more than one value
# sort by is used to sort the query
# in theory can have more than one but generally there's just one
my @sort_by;
my @allowed_sortby =
    qw /acqdate_asc acqdate_dsc author_az author_za call_number_asc call_number_dsc popularity_asc popularity_dsc pubdate_asc pubdate_dsc relevance title_az title_za/;
@sort_by = $cgi->multi_param('sort_by');
$sort_by[0] = $default_sort_by if !$sort_by[0] && defined($default_sort_by);
foreach my $sort (@sort_by) {
    if ( grep { $_ eq $sort } @allowed_sortby ) {
        $template->param( $sort => 1 );
    }
}
$template->param( 'sort_by' => $sort_by[0] );

# Use the servers defined, or just search our local catalog(default)
my @servers = $cgi->multi_param('server');
unless (@servers) {

    #FIXME: this should be handled using Context.pm
    @servers = ("biblioserver");

    # @servers = C4::Context->config("biblioserver");
}

# operators include boolean and proximity operators and are used
# to evaluate multiple operands
my @operators = $cgi->multi_param('op');
@operators = map { uri_unescape($_) } @operators;

# indexes are query qualifiers, like 'title', 'author', etc. They
# can be single or multiple parameters separated by comma: kw,right-Truncation
my @indexes = $cgi->multi_param('idx');
@indexes = map { uri_unescape($_) } @indexes;

# if a simple index (only one)  display the index used in the top search box
if ( $indexes[0] && !$indexes[1] ) {
    my $idx = "ms_" . $indexes[0];
    $idx =~ s/\,/comma/g;    # template toolkit doesn't like variables with a , in it
    $idx =~ s/-/dash/g;      # template toolkit doesn't like variables with a dash in it
    $template->param( $idx => 1 );
}

# an operand can be a single term, a phrase, or a complete ccl query
my @operands = $cgi->multi_param('q');
@operands = map { uri_unescape($_) } @operands;

$template->{VARS}->{querystring} = join( ' ', @operands );

# if a simple search, display the value in the search box
my $basic_search = 0;
if ( $operands[0] && !$operands[1] ) {
    my $ms_query = $operands[0];
    $ms_query =~ s/ #\S+//;
    $template->param( ms_value => $ms_query );
    $basic_search = 1;
}

# limits are use to limit to results to a pre-defined category such as branch or language
my @limits = $cgi->multi_param('limit');
@limits = map { uri_unescape($_) } @limits;
my @nolimits = $cgi->multi_param('nolimit');
@nolimits = map { uri_unescape($_) } @nolimits;
my %is_nolimit = map { $_ => 1 } @nolimits;
@limits = grep { not $is_nolimit{$_} } @limits;

if ( @searchCategories > 0 ) {
    my @tabcat;
    foreach my $typecategory (@searchCategories) {
        push @tabcat, Koha::ItemTypes->search( { searchcategory => $typecategory } )->get_column('itemtype');
    }

    foreach my $itemtypeInCategory (@tabcat) {
        push( @limits, "mc-$itype_or_itemtype,phr:" . $itemtypeInCategory );
    }
}

@limits = map { uri_unescape($_) } @limits;

my $available;
foreach my $limit (@limits) {
    if ( $limit =~ /available/ ) {
        $available = 1;
    }
}
$template->param( available => $available );

# append year limits if they exist
if ( $params->{'limit-yr'} ) {
    if ( $params->{'limit-yr'} =~ /\d{4}/ ) {
        push @limits, "yr,st-numeric=$params->{'limit-yr'}";
    } else {

        #FIXME: Should return a error to the user, incorrect date format specified
    }
}

# Params that can only have one value
my $scan             = $params->{'scan'};
my $count            = C4::Context->preference('OPACnumSearchResults') || 20;
my $countRSS         = C4::Context->preference('numSearchRSSResults')  || 50;
my $results_per_page = $params->{'count'}                              || $count;
my $offset           = $params->{'offset'}                             || 0;
$offset = 0 if $offset < 0;
my $page = $cgi->param('page') || 1;
$offset = ( $page - 1 ) * $results_per_page if $page > 1;
my $hits;
my $weight_search = $cgi->param('advsearch') ? $cgi->param('weight_search') || 0 : 1;

# Define some global variables
my ( $error, $query, $simple_query, $query_cgi, $query_desc, $limit, $limit_cgi, $limit_desc, $query_type );

my $suppress = 0;
if ( C4::Context->preference('OpacSuppression') ) {

    # OPAC suppression by IP address
    if ( C4::Context->preference('OpacSuppressionByIPRange') ) {
        my $IPAddress = $ENV{'REMOTE_ADDR'};
        my $IPRange   = C4::Context->preference('OpacSuppressionByIPRange');
        $suppress = ( $IPAddress !~ /^$IPRange/ );
    } else {
        $suppress = 1;
    }
}

## I. BUILD THE QUERY
( $error, $query, $simple_query, $query_cgi, $query_desc, $limit, $limit_cgi, $limit_desc, $query_type ) =
    $builder->build_query_compat(
    \@operators,
    \@operands,
    \@indexes,
    \@limits,
    \@sort_by,
    0,
    $lang,
    {
        suppress        => $suppress,
        is_opac         => 1,
        weighted_fields => $weight_search
    }
    );

$template->param( search_query => $query ) if C4::Context->preference('DumpSearchQueryTemplate');

sub _input_cgi_parse {
    my @elements;
    my $query_cgi = shift or return @elements;
    for my $this_cgi ( split( '&', $query_cgi ) ) {
        next unless $this_cgi;
        $this_cgi =~ /(.*?)=(.*)/;
        push @elements, { input_name => $1, input_value => Encode::decode_utf8( uri_unescape($2) ) };
    }
    return @elements;
}

## parse the query_cgi string and put it into a form suitable for <input>s
my @query_inputs = _input_cgi_parse($query_cgi);
$template->param( QUERY_INPUTS => \@query_inputs );

## parse the limit_cgi string and put it into a form suitable for <input>s
my @limit_inputs = $limit_cgi ? _input_cgi_parse($limit_cgi) : ();

# OpenURL
my @OpenURL_itypes;
if ( C4::Context->preference('OPACShowOpenURL') ) {
    @OpenURL_itypes = split( /\s/, C4::Context->preference('OPACOpenURLItemTypes') );
    $template->param(
        OPACShowOpenURL      => 1,
        OpenURLResolverURL   => C4::Context->preference('OpenURLResolverURL'),
        OpenURLText          => C4::Context->preference('OpenURLText'),
        OpenURLImageLocation => C4::Context->preference('OpenURLImageLocation')
    );
}

$template->param( LIMIT_INPUTS => \@limit_inputs );

## II. DO THE SEARCH AND GET THE RESULTS
my $total = 0;    # the total results for the whole set
my $facets;       # this object stores the faceted results that display on the left-hand of the results page
my $results_hashref;

if ($tag) {
    $query_cgi = "tag=" . uri_escape_utf8($tag) . "&" . $query_cgi;
    my $taglist = get_tags( { term => $tag, approved => 1 } );
    $results_hashref->{biblioserver}->{hits} = scalar(@$taglist);
    my @marclist = map { C4::Biblio::GetXmlBiblio( $_->{biblionumber} ) } @$taglist;
    $results_hashref->{biblioserver}->{RECORDS} = \@marclist;

    # FIXME: tag search and standard search should work together, not exclusively
    # FIXME: Because search and standard search don't work together OpacHiddenItems
    #        displays search results which should be hidden.
    # FIXME: No facets for tags search.
} else {
    my $json = JSON->new->utf8->allow_nonref(1);
    $pasarParams .= '&amp;query=' . uri_escape_utf8( $json->encode($query) );
    $pasarParams .= '&amp;count=' . uri_escape_utf8($results_per_page);
    $pasarParams .= '&amp;simple_query=' . uri_escape_utf8($simple_query);
    $pasarParams .= '&amp;query_type=' . uri_escape_utf8($query_type) if ($query_type);
    my $itemtypes_nocategory =
        { map { $_->{itemtype} => $_ } @{ Koha::ItemTypes->search_with_localization->unblessed } };
    eval {
        ( $error, $results_hashref, $facets ) = $searcher->search_compat(
            $query, $simple_query, \@sort_by, \@servers, $results_per_page, $offset, undef,
            $itemtypes_nocategory, $query_type, $scan, 1
        );
    };
}

# use Data::Dumper; print STDERR "-" x 25, "\n", Dumper($results_hashref);
if ( not $tag and ( $@ || $error ) ) {
    my $query_error = q{};
    $query_error .= $error if $error;
    $query_error .= $@     if $@;
    $template->param( query_error => $query_error );
    output_html_with_http_headers $cgi, $cookie, $template->output;
    exit;
}

# At this point, each server has given us a result set
# now we build that set for template display
my @sup_results_array;
my $search_context = {};
$search_context->{'interface'} = 'opac';
if ( C4::Context->preference('OpacHiddenItemsExceptions') ) {
    $search_context->{patron} = $patron;
}

my $variables = { anonymous_session => ($borrowernumber) ? 0 : 1 };

my @plugin_responses = Koha::Plugins->call(
    'opac_results_xslt_variables',
    {
        lang      => $lang,
        patron_id => $borrowernumber
    }
);
for my $plugin_variables (@plugin_responses) {
    $variables = { %$variables, %$plugin_variables };
}

for ( my $i = 0 ; $i < @servers ; $i++ ) {
    my $server = $servers[$i];
    if ( $server && $server =~ /biblioserver/ ) {    # this is the local bibliographic server
        $hits = $results_hashref->{$server}->{"hits"} // 0;
        if ( $hits == 0 && $basic_search ) {
            $operands[0] = '"' . $operands[0] . '"';    #quote it
            ## I. BUILD THE QUERY
            ( $error, $query, $simple_query, $query_cgi, $query_desc, $limit, $limit_cgi, $limit_desc, $query_type ) =
                $builder->build_query_compat(
                \@operators,
                \@operands,
                \@indexes,
                \@limits,
                \@sort_by,
                0,
                $lang,
                {
                    suppress        => $suppress,
                    is_opac         => 1,
                    weighted_fields => $weight_search
                }
                );
            my $quoted_results_hashref;
            my $itemtypes_nocategory =
                { map { $_->{itemtype} => $_ } @{ Koha::ItemTypes->search_with_localization->unblessed } };
            eval {
                ( $error, $quoted_results_hashref, $facets ) = $searcher->search_compat(
                    $query, $simple_query,         \@sort_by,   \@servers, $results_per_page, $offset,
                    undef,  $itemtypes_nocategory, $query_type, $scan,     1
                );
            };
            my $quoted_hits = $quoted_results_hashref->{$server}->{"hits"} // 0;
            if ($quoted_hits) {
                $results_hashref->{'biblioserver'} = $quoted_results_hashref->{'biblioserver'};
                $hits = $quoted_hits;
            }
        }
        my $page       = $cgi->param('page') || 0;
        my @newresults = searchResults(
            $search_context, $query_desc, $hits, $results_per_page, $offset, $scan,
            $results_hashref->{$server}->{"RECORDS"}, $variables
        );
        $hits = 0 unless @newresults;

        my $art_req_itypes;
        if ( C4::Context->preference('ArticleRequests') ) {
            $art_req_itypes = Koha::CirculationRules->guess_article_requestable_itemtypes(
                { $patron ? ( categorycode => $patron->categorycode ) : () } );
        }

        foreach my $res (@newresults) {

            # must define a value for size if not present in DB
            # in order to avoid problems generated by the default size value in TT
            if ( not exists $res->{'size'} ) { $res->{'size'} = "" }

            # while we're checking each line, see if item is in the cart
            if ( grep { $_ eq $res->{'biblionumber'} } @cart_list ) {
                $res->{'incart'} = 1;
            }

            if ( C4::Context->preference("Babeltheque") and $res->{normalized_isbn} ) {
                if ( my $isbn = Business::ISBN->new( $res->{normalized_isbn} ) ) {
                    $isbn = $isbn->as_isbn13->as_string;
                    $isbn =~ s/-//g;
                    my $social_datas = C4::SocialData::get_data($isbn);
                    if ($social_datas) {
                        for my $key ( keys %$social_datas ) {
                            $res->{$key} = $$social_datas{$key};
                            if ( $key eq 'score_avg' ) {
                                $res->{score_int} = sprintf( "%.0f", $$social_datas{score_avg} );
                            }
                        }
                    }
                }
            }

            if (    C4::Context->preference('TagsEnabled')
                and C4::Context->preference('TagsShowOnList') )
            {
                if ( my $bibnum = $res->{biblionumber} ) {
                    $res->{itemsissued} = CountItemsIssued($bibnum);
                    $res->{'TagLoop'}   = get_tags(
                        {
                            biblionumber => $bibnum,
                            approved     => 1,
                            sort         => '-weight',
                            limit        => C4::Context->preference('TagsShowOnList')
                        }
                    );
                }
            }

            $res->{shelves} = Koha::Virtualshelves->get_shelves_containing_record(
                {
                    biblionumber   => $res->{biblionumber},
                    borrowernumber => $borrowernumber
                }
            );

            if ( C4::Context->preference('OpacStarRatings') eq 'all' ) {
                my $ratings = Koha::Ratings->search( { biblionumber => $res->{biblionumber} } );
                $res->{ratings} = $ratings;
                $res->{my_rating} =
                    $borrowernumber ? $ratings->search( { borrowernumber => $borrowernumber } )->next : undef;
            }

            # BZ17530: 'Intelligent' guess if result can be article requested
            $res->{artreqpossible} =
                ( $art_req_itypes->{ $res->{itemtype} // q{} } || $art_req_itypes->{'*'} ) ? 1 : q{};

            if ( C4::Context->preference('OPACLocalCoverImages') ) {
                $res->{has_local_cover_image} = $res->{biblio_object} ? $res->{biblio_object}->cover_images->count : 0;
            }
        }

        if ( $results_hashref->{$server}->{"hits"} ) {
            $total = $total + $hits;
        }

        # Opac search history
        if ( C4::Context->preference('EnableOpacSearchHistory') ) {
            unless ($offset) {
                my $path_info         = $cgi->url( -path_info => 1 );
                my $query_cgi_history = $cgi->url( -query     => 1 );
                $query_cgi_history =~ s/^$path_info\?//;
                $query_cgi_history =~ s/;/&/g;
                my $query_desc_history = join ", ", grep { defined $_ } $query_desc, $limit_desc;

                if ( $borrowernumber and $cgi->cookie("CGISESSID") ) {

                    # To the session (the user is logged in)
                    C4::Search::History::add(
                        {
                            userid     => $borrowernumber,
                            sessionid  => $cgi->cookie("CGISESSID"),
                            query_desc => $query_desc_history,
                            query_cgi  => $query_cgi_history,
                            total      => $total,
                            type       => "biblio",
                        }
                    );
                } else {
                    my $new_searches = C4::Search::History::add_to_session(
                        {
                            cgi        => $cgi,
                            query_desc => $query_desc_history,
                            query_cgi  => $query_cgi_history,
                            total      => $total,
                            type       => "biblio",
                        }
                    );
                }
            }
            $template->param( EnableOpacSearchHistory => 1 );
        }

        ## If there's just one result, redirect to the detail page
        if (   $total == 1
            && $format ne 'rss'
            && $format ne 'opensearchdescription'
            && $format ne 'atom'
            && C4::Context->preference('RedirectToSoleResult') )
        {
            my $biblionumber = $newresults[0]->{biblionumber};
            if ( C4::Context->preference('BiblioDefaultView') eq 'isbd' ) {
                print $cgi->redirect("/cgi-bin/koha/opac-ISBDdetail.pl?biblionumber=$biblionumber");
            } elsif ( C4::Context->preference('BiblioDefaultView') eq 'marc' ) {
                print $cgi->redirect("/cgi-bin/koha/opac-MARCdetail.pl?biblionumber=$biblionumber");
            } else {
                print $cgi->redirect("/cgi-bin/koha/opac-detail.pl?biblionumber=$biblionumber");
            }
            exit;
        }
        if ($hits) {

            # We build the encrypted list of first OPACnumSearchResults biblios to pass with the search criteria for paging on opac-detail
            $pasarParams .= '&amp;listBiblios=';
            my $j = 0;
            foreach (@newresults) {
                my $bibnum = ( $_->{biblionumber} ) ? $_->{biblionumber} : 0;
                $pasarParams .= uri_escape_utf8($bibnum) . ',';
                $j++;
                last if ( $j == $results_per_page );
            }
            chop $pasarParams if ( $pasarParams =~ /,$/ );
            $pasarParams .= '&amp;total=' . uri_escape_utf8( int($total) ) if ( $pasarParams !~ /total=(?:[0-9]+)?/ );
            if ($pasarParams) {
                my $session = get_session( $cgi->cookie("CGISESSID") );
                $session->param( 'busc' => $pasarParams );
            }
            $template->param( total => $hits );
            my $limit_cgi_not_availablity = $limit_cgi;
            $limit_cgi_not_availablity =~ s/&limit=available//g if defined $limit_cgi_not_availablity;
            $template->param( limit_cgi_not_availablity => $limit_cgi_not_availablity );
            $template->param( limit_cgi                 => $limit_cgi );
            $template->param( countrss                  => $countRSS );
            $template->param( query_cgi                 => $query_cgi );
            $template->param( query_desc                => $query_desc );
            $template->param( limit_desc                => $limit_desc );
            $template->param( offset                    => $offset );

            if ( $query_desc || $limit_desc ) {
                $template->param( searchdesc => 1 );
            }
            $template->param( results_per_page => $results_per_page );
            my $hide = keys %$hidingrules ? 1 : 0;

            $template->param(
                SEARCH_RESULTS         => \@newresults,
                suppress_result_number => $hide,
            );
            if ( C4::Context->preference("OPACLocalCoverImages") ) {
                $template->param( OPACLocalCoverImages => 1 );
            }
            ## Build the page numbers on the bottom of the page
            my (
                $page_numbers,     $hits_to_paginate, $pages, $current_page_number, $previous_page_offset,
                $next_page_offset, $last_page_offset
                )
                = Koha::SearchEngine::Search->pagination_bar(
                {
                    hits              => $hits,
                    max_result_window => $searcher->max_result_window,
                    results_per_page  => $results_per_page,
                    offset            => $offset,
                    sort_by           => \@sort_by
                }
                );
            $template->param(
                hits_to_paginate    => $hits_to_paginate,
                current_page_number => $current_page_number,
                pages               => $pages
            );
            $template->param(
                PAGE_NUMBERS         => $page_numbers,
                last_page_offset     => $last_page_offset,
                previous_page_offset => $previous_page_offset
            ) unless $pages < 2;
            $template->param( next_page_offset => $next_page_offset ) unless $pages eq $current_page_number;
        }

        # no hits
        else {
            my $nohits = C4::Context->preference('OPACNoResultsFound');
            if ( $nohits and $nohits =~ /{QUERY_KW}/ ) {

                # extracting keywords in case of relaunching search
                ( my $query_kw = $query_desc ) =~ s/ and|or / /g;
                my @query_kw = ( $query_kw =~ /([-\w]+\b)(?:[^:]|$)/g );
                $query_kw = join( '+', @query_kw );
                $nohits =~ s/{QUERY_KW}/$query_kw/g;
                $template->param( 'OPACNoResultsFound' => $nohits );
            }
            $template->param(
                searchdesc => 1,
                query_desc => $query_desc,
                limit_desc => $limit_desc,
                query_cgi  => $query_cgi,
                limit_cgi  => $limit_cgi
            );
        }
    }    # end of the if local
         # asynchronously search the authority server
    elsif ( $server && $server =~ /authorityserver/ ) {    # this is the local authority server
        my @inner_sup_results_array;
        for my $sup_record ( @{ $results_hashref->{$server}->{"RECORDS"} } ) {
            my $marc_record_object = MARC::Record->new_from_usmarc($sup_record);
            my $title_field        = $marc_record_object->field(100);
            push @inner_sup_results_array, {
                'title' => $title_field->subfield('a'),
                'link'  => "&amp;idx=an&amp;q=" . $marc_record_object->field('001')->as_string(),
            };
        }
        my $servername = $server;
        push @sup_results_array, {
            servername             => $servername,
            inner_sup_results_loop => \@inner_sup_results_array
        } if @inner_sup_results_array;
    }

    # FIXME: can add support for other targets as needed here
    $template->param( outer_sup_results_loop => \@sup_results_array );
}    #/end of the for loop

for my $facet (@$facets) {
    for my $entry ( @{ $facet->{facets} } ) {
        my $index = $entry->{type_link_value};
        my $value = $entry->{facet_link_value};
        $entry->{active} = grep { $_->{input_value} eq qq{$index:$value} } @limit_inputs;
    }
}

my @search_filters = Koha::SearchFilters->search( { opac => 1 }, { order_by => "name" } )->as_list;
my %active_filters;
foreach my $sf (@search_filters) {
    $active_filters{ $sf->id } = 1 if grep { "search_filter:" . $sf->id eq $_->{input_value} } @limit_inputs;
}
$template->param(
    search_filters => \@search_filters,
    active_filters => \%active_filters,
) if C4::Context->preference('SavedSearchFilters');

$template->param(

    #classlist => $classlist,
    total             => $total,
    opacfacets        => 1,
    facets_loop       => $facets,
    displayFacetCount => C4::Context->preference('displayFacetCount') || 0,
    scan              => $scan,
    search_error      => $error,
);

if ( $query_desc || $limit_desc ) {
    $template->param( searchdesc => 1 );
}

# VI. BUILD THE TEMPLATE
my $some_private_shelves = Koha::Virtualshelves->get_some_shelves(
    {
        borrowernumber => $borrowernumber,
        add_allowed    => 1,
        public         => 0,
    }
);
my $some_public_shelves = Koha::Virtualshelves->get_some_shelves(
    {
        borrowernumber => $borrowernumber,
        add_allowed    => 1,
        public         => 1,
    }
);

$template->param(
    add_to_some_private_shelves => $some_private_shelves,
    add_to_some_public_shelves  => $some_public_shelves,
);

my $content_type = ( $format eq 'rss' or $format eq 'atom' or $format eq 'opensearchdescription' ) ? $format : 'html';

$template->{VARS}->{DidYouMean} =
    ( defined C4::Context->preference('OPACdidyoumean') && C4::Context->preference('OPACdidyoumean') =~ m/enable/ );

if ( $offset == 0 ) {
    $template->param( firstPage => 1 );
}

$template->param( borrowernumber => $borrowernumber );
output_with_http_headers $cgi, $cookie, $template->output, $content_type;