xref: /webtrees/app/GedcomRecord.php (revision 9d74ed0ab3ae61aa8ae07578e026f14020844ce9)
1<?php
2
3/**
4 * webtrees: online genealogy
5 * Copyright (C) 2023 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 <https://www.gnu.org/licenses/>.
16 */
17
18declare(strict_types=1);
19
20namespace Fisharebest\Webtrees;
21
22use Closure;
23use Exception;
24use Fisharebest\Webtrees\Contracts\TimestampInterface;
25use Fisharebest\Webtrees\Contracts\UserInterface;
26use Fisharebest\Webtrees\Elements\RestrictionNotice;
27use Fisharebest\Webtrees\Http\RequestHandlers\GedcomRecordPage;
28use Fisharebest\Webtrees\Services\PendingChangesService;
29use Illuminate\Support\Collection;
30
31use function array_combine;
32use function array_keys;
33use function array_map;
34use function array_search;
35use function array_shift;
36use function count;
37use function date;
38use function e;
39use function explode;
40use function implode;
41use function in_array;
42use function md5;
43use function preg_match;
44use function preg_match_all;
45use function preg_replace;
46use function preg_replace_callback;
47use function preg_split;
48use function range;
49use function route;
50use function str_contains;
51use function str_ends_with;
52use function str_pad;
53use function str_replace;
54use function str_starts_with;
55use function strtoupper;
56use function strtr;
57use function trim;
58use function view;
59
60use const PHP_INT_MAX;
61use const PREG_SET_ORDER;
62use const STR_PAD_LEFT;
63
64/**
65 * A GEDCOM object.
66 */
67class GedcomRecord
68{
69    public const RECORD_TYPE = 'UNKNOWN';
70
71    protected const ROUTE_NAME = GedcomRecordPage::class;
72
73    protected string $xref;
74
75    protected Tree $tree;
76
77    // GEDCOM data (before any pending edits)
78    protected string $gedcom;
79
80    // GEDCOM data (after any pending edits)
81    protected string|null $pending;
82
83    /** @var array<Fact> Facts extracted from $gedcom/$pending */
84    protected array $facts;
85
86    /** @var array<array<string>> All the names of this individual */
87    protected array $getAllNames = [];
88
89    /** @var int|null Cached result */
90    private int|null $getPrimaryName = null;
91
92    /** @var int|null Cached result */
93    private int|null $getSecondaryName = null;
94
95    /**
96     * Create a GedcomRecord object from raw GEDCOM data.
97     *
98     * @param string      $xref
99     * @param string      $gedcom  an empty string for new/pending records
100     * @param string|null $pending null for a record with no pending edits,
101     *                             empty string for records with pending deletions
102     * @param Tree        $tree
103     */
104    public function __construct(string $xref, string $gedcom, string|null $pending, Tree $tree)
105    {
106        $this->xref    = $xref;
107        $this->gedcom  = $gedcom;
108        $this->pending = $pending;
109        $this->tree    = $tree;
110        $this->facts   = $this->parseFacts();
111    }
112
113    /**
114     * A closure which will filter out private records.
115     *
116     * @return Closure(GedcomRecord):bool
117     */
118    public static function accessFilter(): Closure
119    {
120        return static fn (GedcomRecord $record): bool => $record->canShow();
121    }
122
123    /**
124     * A closure which will compare records by name.
125     *
126     * @return Closure(GedcomRecord,GedcomRecord):int
127     */
128    public static function nameComparator(): Closure
129    {
130        return static function (GedcomRecord $x, GedcomRecord $y): int {
131            if ($x->canShowName()) {
132                if ($y->canShowName()) {
133                    return I18N::comparator()($x->sortName(), $y->sortName());
134                }
135
136                return -1; // only $y is private
137            }
138
139            if ($y->canShowName()) {
140                return 1; // only $x is private
141            }
142
143            return 0; // both $x and $y private
144        };
145    }
146
147    /**
148     * A closure which will compare records by change time.
149     *
150     * @param int $direction +1 to sort ascending, -1 to sort descending
151     *
152     * @return Closure(GedcomRecord,GedcomRecord):int
153     */
154    public static function lastChangeComparator(int $direction = 1): Closure
155    {
156        return static fn (GedcomRecord $x, GedcomRecord $y): int => $direction * ($x->lastChangeTimestamp() <=> $y->lastChangeTimestamp());
157    }
158
159    /**
160     * Get the GEDCOM tag for this record.
161     *
162     * @return string
163     */
164    public function tag(): string
165    {
166        preg_match('/^0 @[^@]*@ (\w+)/', $this->gedcom(), $match);
167
168        return $match[1] ?? static::RECORD_TYPE;
169    }
170
171    /**
172     * Get the XREF for this record
173     *
174     * @return string
175     */
176    public function xref(): string
177    {
178        return $this->xref;
179    }
180
181    /**
182     * Get the tree to which this record belongs
183     *
184     * @return Tree
185     */
186    public function tree(): Tree
187    {
188        return $this->tree;
189    }
190
191    /**
192     * Application code should access data via Fact objects.
193     * This function exists to support old code.
194     *
195     * @return string
196     */
197    public function gedcom(): string
198    {
199        return $this->pending ?? $this->gedcom;
200    }
201
202    /**
203     * Does this record have a pending change?
204     *
205     * @return bool
206     */
207    public function isPendingAddition(): bool
208    {
209        return $this->pending !== null;
210    }
211
212    /**
213     * Does this record have a pending deletion?
214     *
215     * @return bool
216     */
217    public function isPendingDeletion(): bool
218    {
219        return $this->pending === '';
220    }
221
222    /**
223     * Generate a URL to this record.
224     *
225     * @return string
226     */
227    public function url(): string
228    {
229        return route(static::ROUTE_NAME, [
230            'xref' => $this->xref(),
231            'tree' => $this->tree->name(),
232            'slug' => Registry::slugFactory()->make($this),
233        ]);
234    }
235
236    /**
237     * Can the details of this record be shown?
238     *
239     * @param int|null $access_level
240     *
241     * @return bool
242     */
243    public function canShow(int|null $access_level = null): bool
244    {
245        $access_level ??= Auth::accessLevel($this->tree);
246
247        // We use this value to bypass privacy checks. For example,
248        // when downloading data or when calculating privacy itself.
249        if ($access_level === Auth::PRIV_HIDE) {
250            return true;
251        }
252
253        $cache_key = 'show-' . $this->xref . '-' . $this->tree->id() . '-' . $access_level;
254
255        return Registry::cache()->array()->remember($cache_key, fn () => $this->canShowRecord($access_level));
256    }
257
258    /**
259     * Can the name of this record be shown?
260     *
261     * @param int|null $access_level
262     *
263     * @return bool
264     */
265    public function canShowName(int|null $access_level = null): bool
266    {
267        return $this->canShow($access_level);
268    }
269
270    /**
271     * Can we edit this record?
272     *
273     * @return bool
274     */
275    public function canEdit(): bool
276    {
277        if ($this->isPendingDeletion()) {
278            return false;
279        }
280
281        if (Auth::isManager($this->tree)) {
282            return true;
283        }
284
285        $fact   = $this->facts(['RESN'])->first();
286        $locked = $fact instanceof Fact && str_ends_with($fact->value(), RestrictionNotice::VALUE_LOCKED);
287
288        return Auth::isEditor($this->tree) && !$locked;
289    }
290
291    /**
292     * Remove private data from the raw gedcom record.
293     */
294    public function privatizeGedcom(int $access_level): string
295    {
296        if ($access_level === Auth::PRIV_HIDE) {
297            return $this->gedcom;
298        }
299
300        if (!$this->canShow($access_level)) {
301            return '';
302        }
303
304        // The record is not private, but parts of it may be.
305
306        // Include the entire first line (for NOTE records)
307        [$gedcom] = explode("\n", $this->gedcom . $this->pending, 2);
308
309        // Check each of the facts for access
310        foreach ($this->facts([], false, $access_level) as $fact) {
311            $gedcom .= "\n" . $fact->gedcom();
312        }
313
314        // Remove links to missing and private records
315        $patterns = [
316            '/\n1 ' . Gedcom::REGEX_TAG . ' @(' . Gedcom::REGEX_XREF . ')@(?:\n[2-9].*)*/',
317            '/\n2 ' . Gedcom::REGEX_TAG . ' @(' . Gedcom::REGEX_XREF . ')@(?:\n[3-9].*)*/',
318            '/\n3 ' . Gedcom::REGEX_TAG . ' @(' . Gedcom::REGEX_XREF . ')@(?:\n[4-9].*)*/',
319            '/\n4 ' . Gedcom::REGEX_TAG . ' @(' . Gedcom::REGEX_XREF . ')@(?:\n[5-9].*)*/',
320        ];
321
322        foreach ($patterns as $pattern) {
323            preg_match_all($pattern, $gedcom, $matches, PREG_SET_ORDER);
324
325            foreach ($matches as $match) {
326                $xref   = $match[1];
327                $record = Registry::gedcomRecordFactory()->make($xref, $this->tree);
328
329                if ($record === null || !$record->canShow($access_level)) {
330                    $gedcom = str_replace($match[0], '', $gedcom);
331                }
332            }
333        }
334
335        return $gedcom;
336    }
337
338    /**
339     * Default for "other" object types
340     *
341     * @return void
342     */
343    public function extractNames(): void
344    {
345        $this->addName(static::RECORD_TYPE, $this->getFallBackName(), '');
346    }
347
348    /**
349     * Derived classes should redefine this function, otherwise the object will have no name
350     *
351     * @return array<int,array<string,string>>
352     */
353    public function getAllNames(): array
354    {
355        if ($this->getAllNames === []) {
356            if ($this->canShowName()) {
357                // Ask the record to extract its names
358                $this->extractNames();
359                // No name found? Use a fallback.
360                if ($this->getAllNames === []) {
361                    $this->addName(static::RECORD_TYPE, $this->getFallBackName(), '');
362                }
363            } else {
364                $this->addName(static::RECORD_TYPE, I18N::translate('Private'), '');
365            }
366        }
367
368        return $this->getAllNames;
369    }
370
371    /**
372     * If this object has no name, what do we call it?
373     *
374     * @return string
375     */
376    public function getFallBackName(): string
377    {
378        return e($this->xref());
379    }
380
381    /**
382     * Which of the (possibly several) names of this record is the primary one.
383     *
384     * @return int
385     */
386    public function getPrimaryName(): int
387    {
388        static $language_script;
389
390        $language_script ??= I18N::locale()->script()->code();
391
392        if ($this->getPrimaryName === null) {
393            // Generally, the first name is the primary one....
394            $this->getPrimaryName = 0;
395            // ...except when the language/name use different character sets
396            foreach ($this->getAllNames() as $n => $name) {
397                if (I18N::textScript($name['sort']) === $language_script) {
398                    $this->getPrimaryName = $n;
399                    break;
400                }
401            }
402        }
403
404        return $this->getPrimaryName;
405    }
406
407    /**
408     * Which of the (possibly several) names of this record is the secondary one.
409     *
410     * @return int
411     */
412    public function getSecondaryName(): int
413    {
414        if ($this->getSecondaryName === null) {
415            // Generally, the primary and secondary names are the same
416            $this->getSecondaryName = $this->getPrimaryName();
417            // ....except when there are names with different character sets
418            $all_names = $this->getAllNames();
419            if (count($all_names) > 1) {
420                $primary_script = I18N::textScript($all_names[$this->getPrimaryName()]['sort']);
421                foreach ($all_names as $n => $name) {
422                    if ($n !== $this->getPrimaryName() && $name['type'] !== '_MARNM' && I18N::textScript($name['sort']) !== $primary_script) {
423                        $this->getSecondaryName = $n;
424                        break;
425                    }
426                }
427            }
428        }
429
430        return $this->getSecondaryName;
431    }
432
433    /**
434     * Allow the choice of primary name to be overridden, e.g. in a search result
435     *
436     * @param int|null $n
437     *
438     * @return void
439     */
440    public function setPrimaryName(int|null $n = null): void
441    {
442        $this->getPrimaryName   = $n;
443        $this->getSecondaryName = null;
444    }
445
446    /**
447     * Allow native PHP functions such as array_unique() to work with objects
448     *
449     * @return string
450     */
451    public function __toString(): string
452    {
453        return $this->xref . '@' . $this->tree->id();
454    }
455
456    /**
457     * /**
458     * Get variants of the name
459     *
460     * @return string
461     */
462    public function fullName(): string
463    {
464        if ($this->canShowName()) {
465            $tmp = $this->getAllNames();
466
467            return $tmp[$this->getPrimaryName()]['full'];
468        }
469
470        return I18N::translate('Private');
471    }
472
473    /**
474     * Get a sortable version of the name. Do not display this!
475     *
476     * @return string
477     */
478    public function sortName(): string
479    {
480        // The sortable name is never displayed, no need to call canShowName()
481        $tmp = $this->getAllNames();
482
483        return $tmp[$this->getPrimaryName()]['sort'];
484    }
485
486    /**
487     * Get the full name in an alternative character set
488     *
489     * @return string|null
490     */
491    public function alternateName(): string|null
492    {
493        if ($this->canShowName() && $this->getPrimaryName() !== $this->getSecondaryName()) {
494            $all_names = $this->getAllNames();
495
496            return $all_names[$this->getSecondaryName()]['full'];
497        }
498
499        return null;
500    }
501
502    /**
503     * Format this object for display in a list
504     *
505     * @return string
506     */
507    public function formatList(): string
508    {
509        $html = '<a href="' . e($this->url()) . '">';
510        $html .= '<b>' . $this->fullName() . '</b>';
511        $html .= '</a>';
512        $html .= $this->formatListDetails();
513
514        return $html;
515    }
516
517    /**
518     * This function should be redefined in derived classes to show any major
519     * identifying characteristics of this record.
520     *
521     * @return string
522     */
523    public function formatListDetails(): string
524    {
525        return '';
526    }
527
528    /**
529     * Extract/format the first fact from a list of facts.
530     *
531     * @param array<string> $facts
532     * @param int           $style
533     *
534     * @return string
535     */
536    public function formatFirstMajorFact(array $facts, int $style): string
537    {
538        $fact = $this->facts($facts, true)->first();
539
540        if ($fact === null) {
541            return '';
542        }
543
544        // Only display if it has a date or place (or both)
545        $attributes = [];
546
547        if ($fact->date()->isOK()) {
548            $attributes[] = view('fact-date', ['cal_link' => 'false', 'fact' => $fact, 'record' => $fact->record(), 'time' => false]);
549        }
550
551        if ($fact->place()->gedcomName() !== '' && $style === 2) {
552            $attributes[] = $fact->place()->shortName();
553        }
554
555        if ($attributes === []) {
556            return '';
557        }
558
559        return '<div><em>' . I18N::translate('%1$s: %2$s', $fact->label(), implode(' — ', $attributes)) . '</em></div>';
560    }
561
562    /**
563     * Get all attributes (e.g. DATE or PLAC) from an event (e.g. BIRT or MARR).
564     * This is used to display multiple events on the individual/family lists.
565     * Multiple events can exist because of uncertainty in dates, dates in different
566     * calendars, place-names in both latin and hebrew character sets, etc.
567     * It also allows us to combine dates/places from different events in the summaries.
568     *
569     * @param array<string> $events
570     *
571     * @return array<Date>
572     */
573    public function getAllEventDates(array $events): array
574    {
575        $dates = [];
576        foreach ($this->facts($events, false, null, true) as $event) {
577            if ($event->date()->isOK()) {
578                $dates[] = $event->date();
579            }
580        }
581
582        return $dates;
583    }
584
585    /**
586     * Get all the places for a particular type of event
587     *
588     * @param array<string> $events
589     *
590     * @return array<Place>
591     */
592    public function getAllEventPlaces(array $events): array
593    {
594        $places = [];
595        foreach ($this->facts($events) as $event) {
596            if (preg_match_all('/\n(?:2 PLAC|3 (?:ROMN|FONE|_HEB)) +(.+)/', $event->gedcom(), $ged_places)) {
597                foreach ($ged_places[1] as $ged_place) {
598                    $places[] = new Place($ged_place, $this->tree);
599                }
600            }
601        }
602
603        return $places;
604    }
605
606    /**
607     * The facts and events for this record.
608     *
609     * @param array<string> $filter
610     * @param bool          $sort
611     * @param int|null      $access_level
612     * @param bool          $ignore_deleted
613     *
614     * @return Collection<int,Fact>
615     */
616    public function facts(
617        array $filter = [],
618        bool $sort = false,
619        int|null $access_level = null,
620        bool $ignore_deleted = false
621    ): Collection {
622        $access_level ??= Auth::accessLevel($this->tree);
623
624        // Convert BIRT into INDI:BIRT, etc.
625        $filter = array_map(fn (string $tag): string => $this->tag() . ':' . $tag, $filter);
626
627        $facts = new Collection();
628        if ($this->canShow($access_level)) {
629            foreach ($this->facts as $fact) {
630                if (($filter === [] || in_array($fact->tag(), $filter, true)) && $fact->canShow($access_level)) {
631                    $facts->push($fact);
632                }
633            }
634        }
635
636        if ($sort) {
637            switch ($this->tag()) {
638                case Family::RECORD_TYPE:
639                case Individual::RECORD_TYPE:
640                    $facts = Fact::sortFacts($facts);
641                    break;
642
643                default:
644                    $subtags = Registry::elementFactory()->make($this->tag())->subtags();
645                    $subtags = array_map(fn (string $tag): string => $this->tag() . ':' . $tag, array_keys($subtags));
646
647                    if ($subtags !== []) {
648                        // Renumber keys from 1.
649                        $subtags = array_combine(range(1, count($subtags)), $subtags);
650                    }
651
652                    $facts = $facts
653                        ->sort(static function (Fact $x, Fact $y) use ($subtags): int {
654                            $sort_x = array_search($x->tag(), $subtags, true) ?: PHP_INT_MAX;
655                            $sort_y = array_search($y->tag(), $subtags, true) ?: PHP_INT_MAX;
656
657                            return $sort_x <=> $sort_y;
658                        });
659                    break;
660            }
661        }
662
663        if ($ignore_deleted) {
664            $facts = $facts->filter(static fn (Fact $fact): bool => !$fact->isPendingDeletion());
665        }
666
667        return $facts;
668    }
669
670    /**
671     * @return array<string,string>
672     */
673    public function missingFacts(): array
674    {
675        $missing_facts = [];
676
677        foreach (Registry::elementFactory()->make($this->tag())->subtags() as $subtag => $repeat) {
678            [, $max] = explode(':', $repeat);
679            $max = $max === 'M' ? PHP_INT_MAX : (int) $max;
680
681            if ($this->facts([$subtag], false, null, true)->count() < $max) {
682                $missing_facts[$subtag] = $subtag;
683                $missing_facts[$subtag] = Registry::elementFactory()->make($this->tag() . ':' . $subtag)->label();
684            }
685        }
686
687        uasort($missing_facts, I18N::comparator());
688
689        if (!Auth::canUploadMedia($this->tree, Auth::user())) {
690            unset($missing_facts['OBJE']);
691        }
692
693        // We have special code for this.
694        unset($missing_facts['FILE']);
695
696        return $missing_facts;
697    }
698
699    /**
700     * Get the last-change timestamp for this record
701     *
702     * @return TimestampInterface
703     */
704    public function lastChangeTimestamp(): TimestampInterface
705    {
706        $chan = $this->facts(['CHAN'])->first();
707
708        if ($chan instanceof Fact) {
709            // The record has a CHAN event.
710            $date = $chan->date()->minimumDate();
711            $ymd = sprintf('%04d-%02d-%02d', $date->year(), $date->month(), $date->day());
712
713            if ($ymd !== '') {
714                // The CHAN event has a valid DATE.
715                if (preg_match('/\n3 TIME (([01]\d|2[0-3]):([0-5]\d):([0-5]\d))/', $chan->gedcom(), $match) === 1) {
716                    return Registry::timestampFactory()->fromString($ymd . $match[1], 'Y-m-d H:i:s');
717                }
718
719                if (preg_match('/\n3 TIME (([01]\d|2[0-3]):([0-5]\d))/', $chan->gedcom(), $match) === 1) {
720                    return Registry::timestampFactory()->fromString($ymd . $match[1], 'Y-m-d H:i');
721                }
722
723                return Registry::timestampFactory()->fromString($ymd, 'Y-m-d');
724            }
725        }
726
727        // The record does not have a CHAN event
728        return Registry::timestampFactory()->make(0);
729    }
730
731    /**
732     * Get the last-change user for this record
733     *
734     * @return string
735     */
736    public function lastChangeUser(): string
737    {
738        $chan = $this->facts(['CHAN'])->first();
739
740        if ($chan === null) {
741            return I18N::translate('Unknown');
742        }
743
744        $chan_user = $chan->attribute('_WT_USER');
745        if ($chan_user === '') {
746            return I18N::translate('Unknown');
747        }
748
749        return $chan_user;
750    }
751
752    /**
753     * Add a new fact to this record
754     *
755     * @param string $gedcom
756     * @param bool   $update_chan
757     *
758     * @return void
759     */
760    public function createFact(string $gedcom, bool $update_chan): void
761    {
762        $this->updateFact('', $gedcom, $update_chan);
763    }
764
765    /**
766     * Delete a fact from this record
767     *
768     * @param string $fact_id
769     * @param bool   $update_chan
770     *
771     * @return void
772     */
773    public function deleteFact(string $fact_id, bool $update_chan): void
774    {
775        $this->updateFact($fact_id, '', $update_chan);
776    }
777
778    /**
779     * Replace a fact with a new gedcom data.
780     *
781     * @param string $fact_id
782     * @param string $gedcom
783     * @param bool   $update_chan
784     *
785     * @return void
786     * @throws Exception
787     */
788    public function updateFact(string $fact_id, string $gedcom, bool $update_chan): void
789    {
790        // Not all record types allow a CHAN event.
791        $update_chan = $update_chan && in_array(static::RECORD_TYPE, Gedcom::RECORDS_WITH_CHAN, true);
792
793        // MSDOS line endings will break things in horrible ways
794        $gedcom = preg_replace('/[\r\n]+/', "\n", $gedcom);
795        $gedcom = trim($gedcom);
796
797        if ($this->pending === '') {
798            throw new Exception('Cannot edit a deleted record');
799        }
800        if ($gedcom !== '' && !preg_match('/^1 ' . Gedcom::REGEX_TAG . '/', $gedcom)) {
801            throw new Exception('Invalid GEDCOM data passed to GedcomRecord::updateFact(' . $gedcom . ')');
802        }
803
804        if ($this->pending !== null && $this->pending !== '') {
805            $old_gedcom = $this->pending;
806        } else {
807            $old_gedcom = $this->gedcom;
808        }
809
810        // First line of record may contain data - e.g. NOTE records.
811        [$new_gedcom] = explode("\n", $old_gedcom, 2);
812
813        // Replacing (or deleting) an existing fact
814        foreach ($this->facts([], false, Auth::PRIV_HIDE, true) as $fact) {
815            if ($fact->id() === $fact_id) {
816                if ($gedcom !== '') {
817                    $new_gedcom .= "\n" . $gedcom;
818                }
819                $fact_id = 'NOT A VALID FACT ID'; // Only replace/delete one copy of a duplicate fact
820            } elseif ($update_chan && str_ends_with($fact->tag(), ':CHAN')) {
821                $new_gedcom .= "\n" . $this->updateChange($fact->gedcom());
822            } else {
823                $new_gedcom .= "\n" . $fact->gedcom();
824            }
825        }
826
827        // Adding a new fact
828        if ($fact_id === '') {
829            $new_gedcom .= "\n" . $gedcom;
830        }
831
832        if ($update_chan && !str_contains($new_gedcom, "\n1 CHAN")) {
833            $new_gedcom .= $this->updateChange("\n1 CHAN");
834        }
835
836        if ($new_gedcom !== $old_gedcom) {
837            // Save the changes
838            DB::table('change')->insert([
839                'gedcom_id'  => $this->tree->id(),
840                'xref'       => $this->xref,
841                'old_gedcom' => $old_gedcom,
842                'new_gedcom' => $new_gedcom,
843                'status'     => 'pending',
844                'user_id'    => Auth::id(),
845            ]);
846
847            $this->pending = $new_gedcom;
848
849            if (Auth::user()->getPreference(UserInterface::PREF_AUTO_ACCEPT_EDITS) === '1') {
850                $pending_changes_service = Registry::container()->get(PendingChangesService::class);
851
852                $pending_changes_service->acceptRecord($this);
853                $this->gedcom  = $new_gedcom;
854                $this->pending = null;
855            }
856        }
857
858        $this->facts = $this->parseFacts();
859    }
860
861    /**
862     * Update this record
863     *
864     * @param string $gedcom
865     * @param bool   $update_chan
866     *
867     * @return void
868     */
869    public function updateRecord(string $gedcom, bool $update_chan): void
870    {
871        // Not all record types allow a CHAN event.
872        $update_chan = $update_chan && in_array(static::RECORD_TYPE, Gedcom::RECORDS_WITH_CHAN, true);
873
874        // MSDOS line endings will break things in horrible ways
875        $gedcom = preg_replace('/[\r\n]+/', "\n", $gedcom);
876        $gedcom = trim($gedcom);
877
878        // Update the CHAN record
879        if ($update_chan) {
880            if (preg_match('/\n1 CHAN(\n[2-9].*)*/', $gedcom, $match)) {
881                $gedcom = strtr($gedcom, [$match[0] => $this->updateChange($match[0])]);
882            } else {
883                $gedcom .= $this->updateChange("\n1 CHAN");
884            }
885        }
886
887        // Create a pending change
888        DB::table('change')->insert([
889            'gedcom_id'  => $this->tree->id(),
890            'xref'       => $this->xref,
891            'old_gedcom' => $this->gedcom(),
892            'new_gedcom' => $gedcom,
893            'status'     => 'pending',
894            'user_id'    => Auth::id(),
895        ]);
896
897        // Clear the cache
898        $this->pending = $gedcom;
899
900        // Accept this pending change
901        if (Auth::user()->getPreference(UserInterface::PREF_AUTO_ACCEPT_EDITS) === '1') {
902            $pending_changes_service = Registry::container()->get(PendingChangesService::class);
903
904            $pending_changes_service->acceptRecord($this);
905            $this->gedcom  = $gedcom;
906            $this->pending = null;
907        }
908
909        $this->facts = $this->parseFacts();
910
911        Log::addEditLog('Update: ' . static::RECORD_TYPE . ' ' . $this->xref, $this->tree);
912    }
913
914    /**
915     * Delete this record
916     *
917     * @return void
918     */
919    public function deleteRecord(): void
920    {
921        // Create a pending change
922        if (!$this->isPendingDeletion()) {
923            DB::table('change')->insert([
924                'gedcom_id'  => $this->tree->id(),
925                'xref'       => $this->xref,
926                'old_gedcom' => $this->gedcom(),
927                'new_gedcom' => '',
928                'status'     => 'pending',
929                'user_id'    => Auth::id(),
930            ]);
931        }
932
933        // Auto-accept this pending change
934        if (Auth::user()->getPreference(UserInterface::PREF_AUTO_ACCEPT_EDITS) === '1') {
935            $pending_changes_service = Registry::container()->get(PendingChangesService::class);
936            $pending_changes_service->acceptRecord($this);
937        }
938
939        Log::addEditLog('Delete: ' . static::RECORD_TYPE . ' ' . $this->xref, $this->tree);
940    }
941
942    /**
943     * Remove all links from this record to $xref
944     *
945     * @param string $xref
946     * @param bool   $update_chan
947     *
948     * @return void
949     */
950    public function removeLinks(string $xref, bool $update_chan): void
951    {
952        $value = '@' . $xref . '@';
953
954        foreach ($this->facts() as $fact) {
955            if ($fact->value() === $value) {
956                $this->deleteFact($fact->id(), $update_chan);
957            } elseif (preg_match_all('/\n(\d) ' . Gedcom::REGEX_TAG . ' ' . $value . '/', $fact->gedcom(), $matches, PREG_SET_ORDER)) {
958                $gedcom = $fact->gedcom();
959                foreach ($matches as $match) {
960                    $next_level  = 1 + (int) $match[1];
961                    $next_levels = '[' . $next_level . '-9]';
962                    $gedcom      = preg_replace('/' . $match[0] . '(\n' . $next_levels . '.*)*/', '', $gedcom);
963                }
964                $this->updateFact($fact->id(), $gedcom, $update_chan);
965            }
966        }
967    }
968
969    /**
970     * Each object type may have its own special rules, and re-implement this function.
971     *
972     * @param int $access_level
973     *
974     * @return bool
975     */
976    protected function canShowByType(int $access_level): bool
977    {
978        $fact_privacy = $this->tree->getFactPrivacy();
979
980        if (isset($fact_privacy[static::RECORD_TYPE])) {
981            // Restriction found
982            return $fact_privacy[static::RECORD_TYPE] >= $access_level;
983        }
984
985        // No restriction found - must be public:
986        return true;
987    }
988
989    /**
990     * Convert a name record into sortable and full/display versions. This default
991     * should be OK for simple record types. INDI/FAM records will need to redefine it.
992     *
993     * @param string $type
994     * @param string $value
995     * @param string $gedcom
996     *
997     * @return void
998     */
999    protected function addName(string $type, string $value, string $gedcom): void
1000    {
1001        $this->getAllNames[] = [
1002            'type'   => $type,
1003            'sort'   => preg_replace_callback('/(\d+)/', static fn (array $matches): string => str_pad($matches[0], 10, '0', STR_PAD_LEFT), $value),
1004            'full'   => '<bdi>' . e($value) . '</bdi>',
1005            // This is used for display
1006            'fullNN' => $value,
1007            // This goes into the database
1008        ];
1009    }
1010
1011    /**
1012     * Get all the names of a record, including ROMN, FONE and _HEB alternatives.
1013     * Records without a name (e.g. FAM) will need to redefine this function.
1014     * Parameters: the level 1 fact containing the name.
1015     * Return value: an array of name structures, each containing
1016     * ['type'] = the gedcom fact, e.g. NAME, TITL, FONE, _HEB, etc.
1017     * ['full'] = the name as specified in the record, e.g. 'Vincent van Gogh' or 'John Unknown'
1018     * ['sort'] = a sortable version of the name (not for display), e.g. 'Gogh, Vincent' or '@N.N., John'
1019     *
1020     * @param int              $level
1021     * @param string           $fact_type
1022     * @param Collection<int,Fact> $facts
1023     *
1024     * @return void
1025     */
1026    protected function extractNamesFromFacts(int $level, string $fact_type, Collection $facts): void
1027    {
1028        $sublevel    = $level + 1;
1029        $subsublevel = $sublevel + 1;
1030        foreach ($facts as $fact) {
1031            if (preg_match_all('/^' . $level . ' (' . $fact_type . ') (.+)((\n[' . $sublevel . '-9].+)*)/m', $fact->gedcom(), $matches, PREG_SET_ORDER)) {
1032                foreach ($matches as $match) {
1033                    // Treat 1 NAME / 2 TYPE married the same as _MARNM
1034                    if ($match[1] === 'NAME' && str_contains(strtoupper($match[3]), "\n2 TYPE MARRIED")) {
1035                        $this->addName('_MARNM', $match[2], $fact->gedcom());
1036                    } else {
1037                        $this->addName($match[1], $match[2], $fact->gedcom());
1038                    }
1039                    if ($match[3] && preg_match_all('/^' . $sublevel . ' (ROMN|FONE|_\w+) (.+)((\n[' . $subsublevel . '-9].+)*)/m', $match[3], $submatches, PREG_SET_ORDER)) {
1040                        foreach ($submatches as $submatch) {
1041                            if ($submatch[1] !== '_RUFNAME') {
1042                                $this->addName($submatch[1], $submatch[2], $match[3]);
1043                            }
1044                        }
1045                    }
1046                }
1047            }
1048        }
1049    }
1050
1051    /**
1052     * Split the record into facts
1053     *
1054     * @return array<Fact>
1055     */
1056    private function parseFacts(): array
1057    {
1058        // Split the record into facts
1059        if ($this->gedcom !== '') {
1060            $gedcom_facts = preg_split('/\n(?=1)/', $this->gedcom);
1061            array_shift($gedcom_facts);
1062        } else {
1063            $gedcom_facts = [];
1064        }
1065        if ($this->pending !== null && $this->pending !== '') {
1066            $pending_facts = preg_split('/\n(?=1)/', $this->pending);
1067            array_shift($pending_facts);
1068        } else {
1069            $pending_facts = [];
1070        }
1071
1072        $facts = [];
1073
1074        foreach ($gedcom_facts as $gedcom_fact) {
1075            $fact = new Fact($gedcom_fact, $this, md5($gedcom_fact));
1076            if ($this->pending !== null && !in_array($gedcom_fact, $pending_facts, true)) {
1077                $fact->setPendingDeletion();
1078            }
1079            $facts[] = $fact;
1080        }
1081        foreach ($pending_facts as $pending_fact) {
1082            if (!in_array($pending_fact, $gedcom_facts, true)) {
1083                $fact = new Fact($pending_fact, $this, md5($pending_fact));
1084                $fact->setPendingAddition();
1085                $facts[] = $fact;
1086            }
1087        }
1088
1089        return $facts;
1090    }
1091
1092    /**
1093     * Work out whether this record can be shown to a user with a given access level
1094     *
1095     * @param int $access_level
1096     *
1097     * @return bool
1098     */
1099    private function canShowRecord(int $access_level): bool
1100    {
1101        // This setting would better be called "$ENABLE_PRIVACY"
1102        if (!$this->tree->getPreference('HIDE_LIVE_PEOPLE')) {
1103            return true;
1104        }
1105
1106        // We should always be able to see our own record (unless an admin is applying download restrictions)
1107        if ($this->xref() === $this->tree->getUserPreference(Auth::user(), UserInterface::PREF_TREE_ACCOUNT_XREF) && $access_level === Auth::accessLevel($this->tree)) {
1108            return true;
1109        }
1110
1111        // Does this record have a restriction notice?
1112        // Cannot use $this->>fact(), as that function calls this one.
1113        if (preg_match('/\n1 RESN (.+)/', $this->gedcom(), $match)) {
1114            $element     = new RestrictionNotice('');
1115            $restriction = $element->canonical($match[1]);
1116
1117            if (str_starts_with($restriction, RestrictionNotice::VALUE_CONFIDENTIAL)) {
1118                return Auth::PRIV_NONE >= $access_level;
1119            }
1120            if (str_starts_with($restriction, RestrictionNotice::VALUE_PRIVACY)) {
1121                return Auth::PRIV_USER >= $access_level;
1122            }
1123            if (str_starts_with($restriction, RestrictionNotice::VALUE_NONE)) {
1124                return true;
1125            }
1126        }
1127
1128        // Does this record have a default RESN?
1129        $individual_privacy = $this->tree->getIndividualPrivacy();
1130        if (isset($individual_privacy[$this->xref()])) {
1131            return $individual_privacy[$this->xref()] >= $access_level;
1132        }
1133
1134        // Privacy rules do not apply to admins
1135        if (Auth::PRIV_NONE >= $access_level) {
1136            return true;
1137        }
1138
1139        // Different types of record have different privacy rules
1140        return $this->canShowByType($access_level);
1141    }
1142
1143    /**
1144     * Lock the database row, to prevent concurrent edits.
1145     */
1146    public function lock(): void
1147    {
1148        DB::table('other')
1149            ->where('o_file', '=', $this->tree->id())
1150            ->where('o_id', '=', $this->xref())
1151            ->lockForUpdate()
1152            ->get();
1153    }
1154
1155    /**
1156     * Change records may contain notes and other fields.  Just update the date/time/author.
1157     *
1158     * @param string $gedcom
1159     *
1160     * @return string
1161     */
1162    private function updateChange(string $gedcom): string
1163    {
1164        $gedcom = preg_replace('/\n2 (DATE|_WT_USER).*(\n[3-9].*)*/', '', $gedcom);
1165        $today  = strtoupper(date('d M Y'));
1166        $now    = date('H:i:s');
1167        $author = Auth::user()->userName();
1168
1169        return $gedcom . "\n2 DATE " . $today . "\n3 TIME " . $now . "\n2 _WT_USER " . $author;
1170    }
1171}
1172