#!/usr/bin/perl

# Copyright Biblibre 2007 - CILEA 2011
#
# 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 <http://www.gnu.org/licenses>.

use strict;
use warnings;

use CGI qw ( -utf8 );
use C4::Output;
use C4::Context;
use C4::Search;
use C4::Auth;
use C4::Output;

use C4::Biblio;
use C4::Koha;
use MARC::Record;
use C4::Branch;
use C4::ItemType;

sub plugin_javascript {
    my ( $dbh, $record, $tagslib, $field_number, $tabloop ) = @_;
    my $function_name = $field_number;
    my $res           = "
  <script type='text/javascript'>
             function Clic$function_name(i) {
                       defaultvalue=document.getElementById(\"$field_number\").value;
                 window.open(\"/cgi-bin/koha/cataloguing/plugin_launcher.pl?plugin_name=marc21_linking_section.pl&index=\" + i + \"&result=\"+defaultvalue,\"marc21_field_7\"+i+\"\",'width=900,height=700,toolbar=false,scrollbars=yes');

             }
      </script>
      ";

    return ( $function_name, $res );
}

# sub plugin
#
# input arg :
# -- op could be equals to
# * fillinput :
# * do_search :
#

sub plugin {
    my ($input)   = @_;
    my $dbh       = C4::Context->dbh;
    my $query     = new CGI;
    my $op        = $query->param('op');
    my $type      = $query->param('type');
    my $startfrom = $query->param('startfrom');
    $startfrom = 0 if ( !defined $startfrom );
    my ( $template, $loggedinuser, $cookie );
    my $resultsperpage;
    my $searchdesc;

    if ( $op eq "fillinput" ) {
        my $biblionumber = $query->param('biblionumber');
        my $index        = $query->param('index');
        my $marcrecord;

        # open template
        ( $template, $loggedinuser, $cookie ) = get_template_and_user(
            {   template_name   => "cataloguing/value_builder/marc21_linking_section.tt",
                query           => $query,
                type            => "intranet",
                authnotrequired => 0,
                flagsrequired   => { editcatalogue => '*' },
                debug           => 1,
            }
        );

        #get marc record
        $marcrecord = GetMarcBiblio($biblionumber);

        my $subfield_value_9 = $biblionumber;
        my $subfield_value_0 = $biblionumber;

        #my $subfield_value_0;
        #$subfield_value_0 = $marcrecord->field('001')->data
        #  if $marcrecord->field('001');
        my $subfield_value_w;
        if ( $marcrecord->field('001') ) {
            $subfield_value_w = $marcrecord->field('001')->data;
        } else {
            $subfield_value_w = $biblionumber;
        }

        my $subfield_value_a;
        my $subfield_value_c;
        my $subfield_value_d;
        my $subfield_value_e;

        my $subfield_value_h;

        my $subfield_value_i;

        my $subfield_value_p;

        my $subfield_value_t;
        if ( $marcrecord->field('245') ) {
            $subfield_value_t = $marcrecord->title();
        }

        my $subfield_value_u;
        my $subfield_value_v;
        my $subfield_value_x;
        my $subfield_value_y;
        my $subfield_value_z;

        $subfield_value_x = $marcrecord->field('022')->subfield("a")
          if ( $marcrecord->field('022') );
        $subfield_value_z = $marcrecord->field('020')->subfield("a")
          if ( $marcrecord->field('020') );

        # escape the 's
        $subfield_value_9 =~ s/'/\\'/g;
        $subfield_value_0 =~ s/'/\\'/g;
        $subfield_value_a =~ s/'/\\'/g;
        $subfield_value_c =~ s/'/\\'/g;
        $subfield_value_d =~ s/'/\\'/g;
        $subfield_value_e =~ s/'/\\'/g;
        $subfield_value_h =~ s/'/\\'/g;
        $subfield_value_i =~ s/'/\\'/g;
        $subfield_value_p =~ s/'/\\'/g;
        $subfield_value_t =~ s/'/\\'/g;
        $subfield_value_u =~ s/'/\\'/g;
        $subfield_value_v =~ s/'/\\'/g;
        $subfield_value_w =~ s/'/\\'/g;
        $subfield_value_x =~ s/'/\\'/g;
        $subfield_value_y =~ s/'/\\'/g;
        $subfield_value_z =~ s/'/\\'/g;
        $template->param(
            fillinput        => 1,
            index            => $query->param('index') . "",
            biblionumber     => $biblionumber ? $biblionumber : "",
            subfield_value_9 => "$subfield_value_9",
            subfield_value_0 => "$subfield_value_0",
            subfield_value_a => "$subfield_value_a",
            subfield_value_c => "$subfield_value_c",
            subfield_value_d => "$subfield_value_d",
            subfield_value_e => "$subfield_value_e",
            subfield_value_h => "$subfield_value_h",
            subfield_value_i => "$subfield_value_i",
            subfield_value_p => "$subfield_value_p",
            subfield_value_t => "$subfield_value_t",
            subfield_value_u => "$subfield_value_u",
            subfield_value_v => "$subfield_value_v",
            subfield_value_w => "$subfield_value_w",
            subfield_value_x => "$subfield_value_x",
            subfield_value_y => "$subfield_value_y",
            subfield_value_z => "$subfield_value_z",
        );
###############################################################
    } elsif ( $op eq "do_search" ) {
        my $search         = $query->param('search');
        my $itype          = $query->param('itype');
        my $startfrom      = $query->param('startfrom');
        my $resultsperpage = $query->param('resultsperpage') || 20;
        my $orderby;
        my $QParser;
        $QParser = C4::Context->queryparser if ( C4::Context->preference('UseQueryParser') );
        my $op;

        if ($QParser) {
            $op = '&&';
        } else {
            $op = 'and';
        }
        $search = 'kw:' . $search . " $op mc-itemtype:" . $itype if $itype;
        my ( $errors, $results, $total_hits ) = SimpleSearch( $search, $startfrom * $resultsperpage, $resultsperpage );
        if ( defined $errors ) {
            $results = [];
        }
        my $total = @{$results};

        #        warn " biblio count : ".$total;

        ( $template, $loggedinuser, $cookie ) = get_template_and_user(
            {   template_name   => "cataloguing/value_builder/marc21_linking_section.tt",
                query           => $query,
                type            => 'intranet',
                authnotrequired => 0,
                debug           => 1,
            }
        );

        # multi page display gestion
        my $displaynext = 0;
        my $displayprev = $startfrom;

        if ( ( $total_hits - ( ( $startfrom + 1 ) * ($resultsperpage) ) ) > 0 ) {
            $displaynext = 1;
        }
        my @arrayresults;
        my @field_data = ($search);
        for ( my $i = 0 ; $i < $resultsperpage ; $i++ ) {
            my $record = C4::Search::new_record_from_zebra( 'biblioserver', $results->[$i] );
            my $rechash = TransformMarcToKoha( $dbh, $record );
            my $pos;
            my $countitems = $rechash->{itembumber} ? 1 : 0;
            while ( index( $rechash->{itemnumber}, '|', $pos ) > 0 ) {
                $countitems += 1;
                $pos = index( $rechash->{itemnumber}, '|', $pos ) + 1;
            }
            $rechash->{totitem} = $countitems;
            my @holdingbranches = split /\|/, $rechash->{holdingbranch};
            my @itemcallnumbers = split /\|/, $rechash->{itemcallnumber};
            my $CN;
            for ( my $i = 0 ; $i < @holdingbranches ; $i++ ) {
                $CN .= $holdingbranches[$i] . " ( " . $itemcallnumbers[$i] . " ) |";
            }
            $CN =~ s/ \|$//;
            $rechash->{CN} = $CN;
            push @arrayresults, $rechash;
        }

        #         for(my $i = 0 ; $i <= $#marclist ; $i++)
        #         {
        #             push @field_data, { term => "marclist", val=>$marclist[$i] };
        #             push @field_data, { term => "and_or", val=>$and_or[$i] };
        #             push @field_data, { term => "excluding", val=>$excluding[$i] };
        #             push @field_data, { term => "operator", val=>$operator[$i] };
        #             push @field_data, { term => "value", val=>$value[$i] };
        #         }

        my @numbers = ();

        if ( $total > $resultsperpage ) {
            for ( my $i = 1 ; $i < $total / $resultsperpage + 1 ; $i++ ) {
                if ( $i < 16 ) {
                    my $highlight = 0;
                    ( $startfrom == ( $i - 1 ) ) && ( $highlight = 1 );
                    push @numbers,
                      { number     => $i,
                        highlight  => $highlight,
                        searchdata => \@field_data,
                        startfrom  => ( $i - 1 )
                      };
                }
            }
        }

        my $from = $startfrom * $resultsperpage + 1;
        my $to;

        if ( $total_hits < $from + $resultsperpage ) {
            $to = $total_hits;
        } else {
            $to = $from + $resultsperpage;
        }
        my $defaultview = 'BiblioDefaultView' . C4::Context->preference('BiblioDefaultView');

        #         my $link="/cgi-bin/koha/cataloguing/value_builder/unimarc4XX.pl?op=do_search&q=$search_desc&resultsperpage=$resultsperpage&startfrom=$startfrom&search=$search";
        #           foreach my $sort (@sort_by){
        #             $link.="&sort_by=".$sort."&";
        #           }
        #           $template->param(
        #             pagination_bar => pagination_bar(
        #                     $link,
        #                     getnbpages($hits, $results_per_page),
        #                     $page,
        #                     'page'
        #             ),
        #           );
        $template->param(
            result         => \@arrayresults,
            index          => $query->param('index') . "",
            startfrom      => $startfrom,
            displaynext    => $displaynext,
            displayprev    => $displayprev,
            resultsperpage => $resultsperpage,
            orderby        => $orderby,
            startfromnext  => $startfrom + 1,
            startfromprev  => $startfrom - 1,
            searchdata     => \@field_data,
            total          => $total_hits,
            from           => $from,
            to             => $to,
            numbers        => \@numbers,
            search         => $search,
            $defaultview   => 1,
            Search         => 0
        );

    } else {
        ( $template, $loggedinuser, $cookie ) = get_template_and_user(
            {   template_name   => "cataloguing/value_builder/marc21_linking_section.tt",
                query           => $query,
                type            => "intranet",
                authnotrequired => 0,
            }
        );

        my @itemtypes = C4::ItemType->all;

        $template->param(
            itypeloop => \@itemtypes,
            index     => $query->param('index'),
            Search    => 1,
        );
    }
    output_html_with_http_headers $query, $cookie, $template->output;
}
