xref: /webtrees/app/Services/DataFixService.php (revision 6b4dc746d4f08ae2d31f5db469ac67a13688bef6) 
1<?php
2
3/**
4 * webtrees: online genealogy
5 * Copyright (C) 2019 webtrees development team
6 * This program is free software: you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation, either version 3 of the License, or
9 * (at your option) any later version.
10 * This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 * GNU General Public License for more details.
14 * You should have received a copy of the GNU General Public License
15 * along with this program. If not, see <http://www.gnu.org/licenses/>.
16 */
17
18declare(strict_types=1);
19
20namespace Fisharebest\Webtrees\Services;
21
22use Fisharebest\Algorithm\MyersDiff;
23use Fisharebest\Webtrees\Family;
24use Fisharebest\Webtrees\Gedcom;
25use Fisharebest\Webtrees\GedcomRecord;
26use Fisharebest\Webtrees\Individual;
27use Fisharebest\Webtrees\Media;
28use Fisharebest\Webtrees\Note;
29use Fisharebest\Webtrees\Repository;
30use Fisharebest\Webtrees\Source;
31use Fisharebest\Webtrees\Submitter;
32use Fisharebest\Webtrees\Tree;
33
34use function e;
35use function explode;
36use function implode;
37use function preg_replace_callback;
38use function strip_tags;
39
40/**
41 * Bulk updates on genealogy data
42 */
43class DataFixService
44{
45    /**
46     * Since we know the type, this is quicker than calling GedcomRecord::getInstance().
47     *
48     * @param string $xref
49     * @param Tree   $tree
50     * @param string $type
51     *
52     * @return GedcomRecord|null
53     */
54    public function getRecordByType(string $xref, Tree $tree, string $type): ?GedcomRecord
55    {
56        switch ($type) {
57            case Family::RECORD_TYPE:
58                return Family::getInstance($xref, $tree);
59
60            case Individual::RECORD_TYPE:
61                return Individual::getInstance($xref, $tree);
62
63            case Note::RECORD_TYPE:
64                return Note::getInstance($xref, $tree);
65
66            case Media::RECORD_TYPE:
67                return Media::getInstance($xref, $tree);
68
69            case Repository::RECORD_TYPE:
70                return Repository::getInstance($xref, $tree);
71
72            case Source::RECORD_TYPE:
73                return Source::getInstance($xref, $tree);
74
75            case Submitter::RECORD_TYPE:
76                return Submitter::getInstance($xref, $tree);
77
78            default:
79                return GedcomRecord::getInstance($xref, $tree);
80        }
81    }
82
83    /**
84     * Default preview generator.
85     *
86     * @param Tree   $tree
87     * @param string $old_gedcom
88     * @param string $new_gedcom
89     *
90     * @return string
91     */
92    public function gedcomDiff(Tree $tree, string $old_gedcom, string $new_gedcom): string
93    {
94        $old_lines   = explode("\n", $old_gedcom);
95        $new_lines   = explode("\n", $new_gedcom);
96        $algorithm   = new MyersDiff();
97        $differences = $algorithm->calculate($old_lines, $new_lines);
98        $diff_lines  = [];
99
100        foreach ($differences as $difference) {
101            switch ($difference[1]) {
102                case MyersDiff::DELETE:
103                    $diff_lines[] = '<del>' . e($difference[0]) . '</del><br>';
104                    break;
105                case MyersDiff::INSERT:
106                    $diff_lines[] = '<ins>' . e($difference[0]) . '</ins><br>';
107                    break;
108                case MyersDiff::KEEP:
109                    $diff_lines[] = e($difference[0]) . '<br>';
110                    break;
111            }
112        }
113
114        $html = implode('', $diff_lines);
115
116        $html = preg_replace_callback('/@(' . Gedcom::REGEX_XREF . ')@/', static function (array $match) use ($tree): string {
117            $record = GedcomRecord::getInstance($match[0], $tree);
118
119            if ($record instanceof GedcomRecord) {
120                $title = strip_tags($record->fullName());
121                $href  = e($record->url());
122
123                return '<a href="' . $href . '" title="' . $title . '">' . $match[0] . '</a>';
124            }
125
126            return $match[0];
127        }, $html);
128
129        return '<pre class="gedcom-data">' . $html . '</pre>';
130    }
131}
132