#!/usr/bin/perl

# Copyright 2000-2002 Katipo Communications
#
# 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 2 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, write to the Free Software Foundation, Inc., 59 Temple Place,
# Suite 330, Boston, MA  02111-1307 USA

use strict;
use warnings;

use CGI;
use C4::Auth;
use HTML::Template::Pro;
use C4::Context;
use C4::Search;
use C4::Auth;
use C4::Output;
use C4::Biblio;
use C4::Items;
use C4::Acquisition;
use C4::Search;
use C4::Dates;
use C4::Koha;    # XXX subfield_is_koha_internal_p
use C4::Debug;
use List::Util qw( max min );
use POSIX;

#use Smart::Comments;
#use Data::Dumper;

BEGIN {
    $debug = $debug || $cgi_debug;
    if ($debug) {
        require Data::Dumper;
        import Data::Dumper qw(Dumper);
    }
}

# Creates a scrolling list with the associated default value.
# Using more than one scrolling list in a CGI assigns the same default value to all the
# scrolling lists on the page !?!? That's why this function was written.

my $query = new CGI;

my $type      = $query->param('type');
my $op        = $query->param('op') || '';
my $batch_id  = $query->param('batch_id');
my $ccl_query = $query->param('ccl_query');

my $dbh = C4::Context->dbh;

my $startfrom = $query->param('startfrom') || 1;
my ( $template, $loggedinuser, $cookie );
my (
    $total_hits,  $orderby, $results,  $total,  $error,
    $marcresults, $idx,     $datefrom, $dateto, $ccl_textbox
);

my $resultsperpage = C4::Context->preference('numSearchResults') || '20';

my $show_results = 0;

if ( $op eq "do_search" ) {
    $idx         = $query->param('idx');
    $ccl_textbox = $query->param('ccl_textbox');
    if ( $ccl_textbox && $idx ) {
        $ccl_query = "$idx=$ccl_textbox";
    }

    $datefrom = $query->param('datefrom');
    $dateto   = $query->param('dateto');

    if ($datefrom) {
        $datefrom = C4::Dates->new($datefrom);
        $ccl_query .= ' and ' if $ccl_textbox;
        $ccl_query .=
          "acqdate,st-date-normalized,ge=" . $datefrom->output("iso");
    }

    if ($dateto) {
        $dateto = C4::Dates->new($dateto);
        $ccl_query .= ' and ' if ( $ccl_textbox || $datefrom );
        $ccl_query .= "acqdate,st-date-normalized,le=" . $dateto->output("iso");
    }

    my $offset = $startfrom > 1 ? $startfrom - 1 : 0;
    ( $error, $marcresults, $total_hits ) =
      SimpleSearch( $ccl_query, $offset, $resultsperpage );

    if ($marcresults) {
        $show_results = scalar @$marcresults;
    }
    else {
        $debug and warn "ERROR label-item-search: no results from SimpleSearch";

        # leave $show_results undef
    }
}

if ($show_results) {
    my $hits = $show_results;
    my ( @results, @items );

    # This code needs to be refactored using these subs...
    #my @items = &GetItemsInfo( $biblio->{biblionumber}, 'intra' );
    #my $dat = &GetBiblioData( $biblio->{biblionumber} );
    for ( my $i = 0 ; $i < $hits ; $i++ ) {

        #DEBUG Notes: Decode the MARC record from each resulting MARC record...
        my $marcrecord = MARC::File::USMARC::decode( $marcresults->[$i] );

        #DEBUG Notes: Transform it to Koha form...
        my $biblio = TransformMarcToKoha( C4::Context->dbh, $marcrecord, '' );

# Begin building the hash for the template...
# I don't think we need this with the current template design, but I'm leaving it in place. -fbcit
#$biblio->{highlight}       = ($i % 2)?(1):(0);
#DEBUG Notes: Stuff the bib into @results...
        push @results, $biblio;
        my $biblionumber = $biblio->{'biblionumber'};

        #DEBUG Notes: Grab the item numbers associated with this MARC record...
        my $itemnums = get_itemnumbers_of($biblionumber);

        #DEBUG Notes: Retrieve the item data for each number...
        my $iii = $itemnums->{$biblionumber};
        if ($iii) {
            my $item_results = GetItemInfosOf(@$iii);
            foreach my $item ( keys %$item_results ) {

#DEBUG Notes: Build an array element 'item' of the correct bib (results) hash which contains item-specific data...
                if ( $item_results->{$item}->{'biblionumber'} eq
                    $results[$i]->{'biblionumber'} )
                {

# NOTE: The order of the elements in this array must be preserved or the table dependent on it will be incorrectly rendered.
# This is a real hack, but I can't think of a better way right now. -fbcit
# It is conceivable that itemcallnumber and/or barcode fields might be empty so the trinaries cover this possibility.
                    push @{ $results[$i]->{'item'} }, { i_itemnumber1 =>
                          $item_results->{$item}->{'itemnumber'} };
                    push @{ $results[$i]->{'item'} },
                      {
                        i_itemcallnumber => (
                              $item_results->{$item}->{'itemcallnumber'}
                            ? $item_results->{$item}->{'itemcallnumber'}
                            : 'NA'
                        )
                      };
                    push @{ $results[$i]->{'item'} }, { i_dateaccessioned =>
                          $item_results->{$item}->{'dateaccessioned'} };
                    push @{ $results[$i]->{'item'} },
                      {
                        i_barcode => (
                              $item_results->{$item}->{'barcode'}
                            ? $item_results->{$item}->{'barcode'}
                            : 'NA'
                        )
                      };
                    push @{ $results[$i]->{'item'} }, { i_itemnumber2 =>
                          $item_results->{$item}->{'itemnumber'} };
                }
            }
        }
    }
    $debug and warn "**********\@results**********\n";
    $debug and warn Dumper(@results);

    ( $template, $loggedinuser, $cookie ) = get_template_and_user(
        {
            template_name   => "labels/result.tmpl",
            query           => $query,
            type            => "intranet",
            authnotrequired => 0,
            flagsrequired   => { borrowers => 1 },
            flagsrequired   => { catalogue => 1 },
            debug           => 1,
        }
    );

    # build page nav stuff.
    my ( @field_data, @numbers );
    $total = $total_hits;

    my ( $from, $to, $startfromnext, $startfromprev, $displaynext,
        $displayprev );

    if ( $total > $resultsperpage ) {
        my $num_of_pages = ceil( $total / $resultsperpage + 1 );
        for ( my $page = 1 ; $page < $num_of_pages ; $page++ ) {
            my $startfrm = ( ( $page - 1 ) * $resultsperpage ) + 1;
            push @numbers,
              {
                number    => $page,
                startfrom => $startfrm
              };
        }

        $from          = $startfrom;
        $startfromprev = $startfrom - $resultsperpage;
        $startfromnext = $startfrom + $resultsperpage;

        $to =
            $startfrom + $resultsperpage > $total
          ? $total
          : $startfrom + $resultsperpage - 1;

        # multi page display
        $displaynext = 0;
        $displayprev = $startfrom > 1 ? $startfrom : 0;

        $displaynext = 1 if $to < $total_hits;

    }
    else {
        $displayprev = 0;
        $displaynext = 0;
    }

    $template->param(
        total          => $total_hits,
        from           => $from,
        to             => $to,
        startfromnext  => $startfromnext,
        startfromprev  => $startfromprev,
        startfrom      => $startfrom,
        displaynext    => $displaynext,
        displayprev    => $displayprev,
        resultsperpage => $resultsperpage,
        numbers        => \@numbers,
    );

    $template->param(
        result    => \@results,
        batch_id  => $batch_id,
        type      => $type,
        idx       => $idx,
        ccl_query => $ccl_query,
    );
}

#
#   search section
#

else {
    ( $template, $loggedinuser, $cookie ) = get_template_and_user(
        {
            template_name   => "labels/search.tmpl",
            query           => $query,
            type            => "intranet",
            authnotrequired => 0,
            flagsrequired   => { catalogue => 1 },
            debug           => 1,
        }
    );
    my $itemtypes = GetItemTypes;
    my @itemtypeloop;
    foreach my $thisitemtype ( keys %$itemtypes ) {
        my %row = (
            value       => $thisitemtype,
            description => $itemtypes->{$thisitemtype}->{'description'},
        );
        push @itemtypeloop, \%row;
    }
    $template->param(
        itemtypeloop => \@itemtypeloop,
        batch_id     => $batch_id,
        type         => $type,
    );

}

# Print the page
$template->param( DHTMLcalendar_dateformat => C4::Dates->DHTMLcalendar(), );
output_html_with_http_headers $query, $cookie, $template->output;
