#!/usr/bin/perl

# Script for handling import of MARC data into Koha db
#   and Z39.50 lookups

# Koha library project  www.koha-community.org

# Licensed under the GPL

# 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.,
# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.

use strict;
#use warnings; FIXME - Bug 2505

# standard or CPAN modules used
use CGI;
use CGI::Cookie;
use MARC::File::USMARC;

# Koha modules used
use C4::Context;
use C4::Auth;
use C4::Output;
use C4::Biblio;
use C4::ImportBatch;
use C4::Matcher;
use C4::UploadedFile;
use C4::BackgroundJob;
use C4::Items; #PrepareItemRecord

my $input = new CGI;
my $dbh = C4::Context->dbh;
$dbh->{AutoCommit} = 0;

my $fileID=$input->param('uploadedfileid');
my $runinbackground = $input->param('runinbackground');
my $completedJobID = $input->param('completedJobID');
my $matcher_id = $input->param('matcher');
my $overlay_action = $input->param('overlay_action');
my $nomatch_action = $input->param('nomatch_action');
my $parse_items = $input->param('parse_items');
my $item_action = $input->param('item_action');
my $comments = $input->param('comments');
my $encoding = $input->param('encoding');
my $ordernumber          = $input->param('ordernumber') || '';
my ($template, $loggedinuser, $cookie)
	= get_template_and_user({template_name => "tools/stage-marc-import.tmpl",
					query => $input,
					type => "intranet",
					authnotrequired => 0,
					flagsrequired => {tools => 'stage_marc_import'},
					debug => 1,
					});

$template->param(SCRIPT_NAME => $ENV{'SCRIPT_NAME'},
						uploadmarc => $fileID);

my %cookies = parse CGI::Cookie($cookie);
my $sessionID = $cookies{'CGISESSID'}->value;
if ($completedJobID) {
    my $job = C4::BackgroundJob->fetch($sessionID, $completedJobID);
    my $results = $job->results();
    $template->param(map { $_ => $results->{$_} } keys %{ $results });
} elsif ($fileID) {
    my $uploaded_file = C4::UploadedFile->fetch($sessionID, $fileID);
    my $fh = $uploaded_file->fh();
	my $marcrecord='';
    $/ = "\035";
	while (<$fh>) {
        s/^\s+//;
        s/\s+$//;
		$marcrecord.=$_;
	}

    my $filename = $uploaded_file->name();
    my $job = undef;
    my $staging_callback = sub { };
    my $matching_callback = sub { };
    if ($runinbackground) {
        my $job_size = () = $marcrecord =~ /\035/g;
        # if we're matching, job size is doubled
        $job_size *= 2 if ($matcher_id ne "");
        $job = C4::BackgroundJob->new($sessionID, $filename, $ENV{'SCRIPT_NAME'}, $job_size);
        my $jobID = $job->id();

        # fork off
        if (my $pid = fork) {
            # parent
            # return job ID as JSON
            
            # prevent parent exiting from
            # destroying the kid's database handle
            # FIXME: according to DBI doc, this may not work for Oracle
            $dbh->{InactiveDestroy}  = 1;

            my $reply = CGI->new("");
            print $reply->header(-type => 'text/html');
            print '{"jobID":"' . $jobID . '"}';
            exit 0;
        } elsif (defined $pid) {
            # child
            # close STDOUT to signal to Apache that
            # we're now running in the background
            close STDOUT;
            close STDERR;
        } else {
            # fork failed, so exit immediately
            warn "fork failed while attempting to run $ENV{'SCRIPT_NAME'} as a background job";
            exit 0;
        }

        # if we get here, we're a child that has detached
        # itself from Apache
        $staging_callback = staging_progress_callback($job, $dbh);
        $matching_callback = matching_progress_callback($job, $dbh);

    }

    # FIXME branch code
    my ($batch_id, $num_valid, $num_items, @import_errors) = BatchStageMarcRecords($encoding, $marcrecord, $filename, $comments, '', $parse_items, 0, 50, staging_progress_callback($job, $dbh));

    $dbh->commit();

    my $num_with_matches = 0;
    my $checked_matches = 0;
    my $matcher_failed = 0;
    my $matcher_code = "";
    if ($matcher_id ne "") {
        my $matcher = C4::Matcher->fetch($matcher_id);
        if (defined $matcher) {
            $checked_matches = 1;
            $matcher_code = $matcher->code();
            $num_with_matches = BatchFindBibDuplicates($batch_id, $matcher, 
                                                       10, 50, matching_progress_callback($job, $dbh));
            SetImportBatchMatcher($batch_id, $matcher_id);
            SetImportBatchOverlayAction($batch_id, $overlay_action);
            SetImportBatchNoMatchAction($batch_id, $nomatch_action);
            SetImportBatchItemAction($batch_id, $item_action);
            $dbh->commit();
        } else {
            $matcher_failed = 1;
        }
    }

    my $results = {
	    staged => $num_valid,
 	    matched => $num_with_matches,
        num_items => $num_items,
        import_errors => scalar(@import_errors),
        total => $num_valid + scalar(@import_errors),
        checked_matches => $checked_matches,
        matcher_failed => $matcher_failed,
        matcher_code => $matcher_code,
        import_batch_id => $batch_id
    };
    if ($runinbackground) {
        $job->finish($results);
    } else {
	    $template->param(staged => $num_valid,
 	                     matched => $num_with_matches,
                         num_items => $num_items,
                         import_errors => scalar(@import_errors),
                         total => $num_valid + scalar(@import_errors),
                         checked_matches => $checked_matches,
                         matcher_failed => $matcher_failed,
                         matcher_code => $matcher_code,
                         import_batch_id => $batch_id
                        );
    }

} else {
    # initial form
    if (C4::Context->preference("marcflavour") eq "UNIMARC") {
        $template->param("UNIMARC" => 1);
    }
    my @matchers = C4::Matcher::GetMatcherList();
    $template->param(available_matchers => \@matchers);
}

if (C4::Context->preference('AcqCreateItem') eq 'ordering' && !$ordernumber) {
    # prepare empty item form
    my $cell = PrepareItemrecordDisplay('','','','ACQ');
#     warn "==> ".Data::Dumper::Dumper($cell);
    unless ($cell) {
        $cell = PrepareItemrecordDisplay('','','','');
        $template->param('NoACQframework' => 1);
    }
    my @itemloop;
    push @itemloop,$cell;
    
    $template->param(items => \@itemloop);
}
# Get the item types list, but only if item_level_itype is YES. Otherwise, it will be in the item, no need to display it in the biblio
my @itemtypes;
@itemtypes = C4::ItemType->all unless C4::Context->preference('item-level_itypes');


output_html_with_http_headers $input, $cookie, $template->output;

exit 0;

sub staging_progress_callback {
    my $job = shift;
    my $dbh = shift;
    return sub {
        my $progress = shift;
        $job->progress($progress);
        $dbh->commit();
    }
}

sub matching_progress_callback {
    my $job = shift;
    my $dbh = shift;
    my $start_progress = $job->progress();
    return sub {
        my $progress = shift;
        $job->progress($start_progress + $progress);
        $dbh->commit();
    }
}  

##</code><code>##


[% INCLUDE 'doc-head-open.inc' %]
<title>Koha &rsaquo; Tools &rsaquo; Stage MARC Records For Import</title>
[% INCLUDE 'doc-head-close.inc' %]
[% INCLUDE 'file-upload.inc' %]
[% INCLUDE 'background-job.inc' %]
<style type="text/css">
	#uploadpanel,#fileuploadstatus,#fileuploadfailed,#jobpanel,#jobstatus,#jobfailed { display : none; }
	#fileuploadstatus,#jobstatus { margin:.4em; }
	#fileuploadprogress,#jobprogress{ width:150px;height:10px;border:1px solid #666;background:url('/intranet-tmpl/prog/img/progress.png') -300px 0px no-repeat; }</style>
<script type="text/javascript">
//<![CDATA[
$(document).ready(function(){
	$("#processfile").hide();
});
function CheckForm(f) {
    if ($("#fileToUpload").value == '') {
        alert(_('Please upload a file first.'));
    } else {
        return submitBackgroundJob(f);
    }
    return false;
}

//]]>
</script>
</head>
<body>
[% INCLUDE 'header.inc' %]
[% INCLUDE 'cat-search.inc' %]

<div id="breadcrumbs"><a href="/cgi-bin/koha/mainpage.pl">Home</a> &rsaquo; <a href="/cgi-bin/koha/tools/tools-home.pl">Tools</a> &rsaquo; [% IF ( uploadmarc ) %]<a href="/cgi-bin/koha/tools/stage-marc-import.pl">Stage MARC Records For Import</a> &rsaquo; Upload Results[% ELSE %]Stage MARC Records For Import[% END %]</div>

<div id="doc3" class="yui-t2">
   
   <div id="bd">
	<div id="yui-main">
	<div class="yui-b">

<h1>Stage MARC Records For Import</h1>
[% IF ( uploadmarc ) %]
<p>MARC Staging results :</p>
<ul>
	<li>[% total %]  records in file</li>
	<li>[% import_errors %] records not staged because of MARC error</li>
	<li>[% staged %] records staged</li>
    [% IF ( checked_matches ) %]
	<li>[% matched %] records with at least one match in catalog per matching rule 
        &quot;[% matcher_code %]&quot;</li>
    [% ELSE %]
        [% IF ( matcher_failed ) %]
          <li>Record matching failed -- unable to retrieve selected matching rule.</li>
        [% ELSE %]
          <li>Did not check for matches with existing records in catalog</li>
        [% END %]
    [% END %]
	<li>[% num_items %] item records found and staged</li>
	[% IF ( label_batch ) %]
	  <li>New label batch created: # [% label_batch %] </li>
    [% END %]
	<li><a href="/cgi-bin/koha/tools/manage-marc-import.pl?import_batch_id=[% import_batch_id %]">Manage staged records</a></li>
	<li><a href="/cgi-bin/koha/tools/tools-home.pl">Back</a></li>
</ul>
[% ELSE %]
<ul>
	<li>Select a MARC file to stage in the import reservoir.  It will be parsed, and each valid record staged for later import into the catalog.</li>
	<li>You can enter a name for this import. It may be useful, when creating a biblio, to remember where the suggested MARC data comes from!</li>
</ul>
<form method="post" action="[% SCRIPT_NAME %]" id="uploadfile" enctype="multipart/form-data">
<fieldset class="rows" id="uploadform">
<legend>Stage records into the reservoir</legend>
<ol>
	<li>
        <div id="fileuploadform">
		<label for="fileToUpload">Select the file to stage: </label>
		<input type="file" id="fileToUpload" name="fileToUpload" />
        </div>	</li>
</ol>
        <fieldset class="action"><button class="submit" onclick="return ajaxFileUpload();">Upload file</button></fieldset>
</fieldset>
		
        <div id="uploadpanel"><div id="fileuploadstatus">Upload progress: <div id="fileuploadprogress"></div> <span id="fileuploadpercent">0</span>%</div>
        <div id="fileuploadfailed"></div></div>
</form>

    <form method="post" id="processfile" action="[% SCRIPT_NAME %]" enctype="multipart/form-data">
<fieldset class="rows">
        <input type="hidden" name="uploadedfileid" id="uploadedfileid" value="" />
        <input type="hidden" name="runinbackground" id="runinbackground" value="" />
        <input type="hidden" name="completedJobID" id="completedJobID" value="" />
	<ol><li>
		<label for="comments">Comments about this file: </label>
		<input type="text" id="comments" name="comments" />
		
	</li>
	<li>
		<label for="encoding">Character encoding: </label>
            <select name="encoding" id="encoding"><option value="utf8" selected="selected">UTF-8 (Default)</option><option value="MARC-8">MARC 8</option><option value="ISO_5426">ISO 5426</option><option value="ISO_6937">ISO 6937</option><option value=ISO_8859-1">ISO 8859-1</option><option value="EUC-KR">EUC-KR</option></select>
	</li>
</ol></fieldset>
  <fieldset class="rows">
    <legend>Look for existing records in catalog?</legend>
    <ol><li><label for="matcher">Record matching rule:</label>
    <select name="matcher" id="matcher">
       <option value="">Do not look for matching records</option> 
       [% FOREACH available_matcher IN available_matchers %]
          <option value="[% available_matcher.matcher_id %]">[% available_matcher.code %] ([% available_matcher.description %])
          </option>
       [% END %]
    </select>
    </li>
      <li><label for="overlay_action">Action if matching bibliographic record found: </label>
           [% INCLUDE 'tools-overlay-action.inc' %]
      </li>
      <li><label for="nomatch_action">Action if no match is found: </label>
           [% INCLUDE 'tools-nomatch-action.inc' %]
      </li>
    </ol>
  </fieldset>
  <fieldset class="rows">
    <legend>Check for embedded item record data?</legend>
    <ol>
      <li class="radio">
        <input type="radio" id="parse_itemsyes" name="parse_items" value="1" checked="checked" />
        <label for="parse_itemsyes">Yes</label>
      </li>
      <li class="radio">
        <input type="radio" id="parse_itemsno" name="parse_items" value="0" />
        <label for="parse_itemsno">No</label>
      </li>
    </ol>

[% IF ( items ) %]
    <fieldset class="rows">
        <legend>Item</legend>
        [% IF ( NoACQframework ) %]
            <div class="dialog message">No ACQ framework, using default. You should create a framework with code ACQ, the items framework would be used</div>
        [% END %]

        [% FOREACH item IN items %]
        <div id="outeritemblock">
        <div id="itemblock">
            <ol>[% FOREACH iteminformatio IN item.iteminformation %]<li style="[% iteminformatio.hidden %];">
                <div class="subfield_line" id="subfield[% iteminformatio.serialid %][% iteminformatio.countitems %][% iteminformatio.subfield %][% iteminformatio.random %]">

                    <label>[% iteminformatio.subfield %] - [% IF ( iteminformatio.mandatory ) %]<b>[% END %][% iteminformatio.marc_lib %][% IF ( iteminformatio.mandatory ) %] *</b>[% END %]</label>
                    [% iteminformatio.marc_value %]
                    <input type="hidden" name="itemid" value="1" />
                    <input type="hidden" name="kohafield" value="[% iteminformatio.kohafield %]" />
                    <input type="hidden" name="tag" value="[% iteminformatio.tag %]" />
                    <input type="hidden" name="subfield" value="[% iteminformatio.subfield %]" />
                    <input type="hidden" name="mandatory" value="[% iteminformatio.mandatory %]" />
                    [% IF ( iteminformatio.ITEM_SUBFIELDS_ARE_NOT_REPEATABLE ) %]
                        <span class="buttonPlus" onclick="CloneSubfield('subfield[% iteminformatio.serialid %][% iteminformatio.countitems %][% iteminformatio.subfield %][% iteminformatio.random %]')">+</span>
                    [% END %]

                </div></li>
            [% END %]
            </ol>
            <a class="addItem" onclick="cloneItemBlock('itemblock[% item.itemBlockIndex %]')">Add</a>
            <a class="delItem" style="display:none;" onclick="deleteItemBlock('itemblock[% item.itemBlockIndex %]')">Delete</a>
        </div><!-- /iteminformation -->
        </div>

        [% END %] <!-- /items -->
    </fieldset>
    [% END %] <!-- items -->


    <ol>
      <li><label for="item_action">How to process items: </label>
           [% INCLUDE 'tools-item-action.inc' %]
      </li>
    </ol>
  </fieldset>
  <fieldset class="action"><input type="button" id="mainformsubmit" onclick="return CheckForm(this.form);" value="Stage for import" /></fieldset>
 
       <div id="jobpanel"><div id="jobstatus">Job progress: <div id="jobprogress"></div> <span id="jobprogresspercent">0</span>%</div>
     <div id="jobfailed"></div></div>
  
</form>
[% END %]

</div>
</div>
<div class="yui-b">
[% INCLUDE 'tools-menu.inc' %]
</div>
</div>
[% INCLUDE 'intranet-bottom.inc' %]