xref: /webtrees/app/Individual.php (revision b11cdcd45131b1585d66693fab363cfeb18c51a4)
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 Fisharebest\ExtCalendar\GregorianCalendar;
24use Fisharebest\Webtrees\Contracts\UserInterface;
25use Fisharebest\Webtrees\Elements\PedigreeLinkageType;
26use Fisharebest\Webtrees\Http\RequestHandlers\IndividualPage;
27use Illuminate\Database\Capsule\Manager as DB;
28use Illuminate\Support\Collection;
29
30use function array_key_exists;
31use function count;
32use function in_array;
33use function preg_match;
34
35/**
36 * A GEDCOM individual (INDI) object.
37 */
38class Individual extends GedcomRecord
39{
40    public const RECORD_TYPE = 'INDI';
41
42    // Placeholders to indicate unknown names
43    public const NOMEN_NESCIO     = '@N.N.';
44    public const PRAENOMEN_NESCIO = '@P.N.';
45
46    protected const ROUTE_NAME = IndividualPage::class;
47
48    /** Used in some lists to keep track of this individual’s generation in that list */
49    public ?int $generation = null;
50
51    private ?Date $estimated_birth_date = null;
52
53    private ?Date $estimated_death_date = null;
54
55    /**
56     * A closure which will compare individuals by birth date.
57     *
58     * @return Closure
59     */
60    public static function birthDateComparator(): Closure
61    {
62        return static function (Individual $x, Individual $y): int {
63            return Date::compare($x->getEstimatedBirthDate(), $y->getEstimatedBirthDate());
64        };
65    }
66
67    /**
68     * A closure which will compare individuals by death date.
69     *
70     * @return Closure
71     */
72    public static function deathDateComparator(): Closure
73    {
74        return static function (Individual $x, Individual $y): int {
75            return Date::compare($x->getEstimatedDeathDate(), $y->getEstimatedDeathDate());
76        };
77    }
78
79    /**
80     * Can the name of this record be shown?
81     *
82     * @param int|null $access_level
83     *
84     * @return bool
85     */
86    public function canShowName(int $access_level = null): bool
87    {
88        $access_level ??= Auth::accessLevel($this->tree);
89
90        return (int) $this->tree->getPreference('SHOW_LIVING_NAMES') >= $access_level || $this->canShow($access_level);
91    }
92
93    /**
94     * Can this individual be shown?
95     *
96     * @param int $access_level
97     *
98     * @return bool
99     */
100    protected function canShowByType(int $access_level): bool
101    {
102        // Dead people...
103        if ((int) $this->tree->getPreference('SHOW_DEAD_PEOPLE') >= $access_level && $this->isDead()) {
104            $keep_alive             = false;
105            $KEEP_ALIVE_YEARS_BIRTH = (int) $this->tree->getPreference('KEEP_ALIVE_YEARS_BIRTH');
106            if ($KEEP_ALIVE_YEARS_BIRTH) {
107                preg_match_all('/\n1 (?:' . implode('|', Gedcom::BIRTH_EVENTS) . ').*(?:\n[2-9].*)*\n2 DATE (.+)/', $this->gedcom, $matches, PREG_SET_ORDER);
108                foreach ($matches as $match) {
109                    $date = new Date($match[1]);
110                    if ($date->isOK() && $date->gregorianYear() + $KEEP_ALIVE_YEARS_BIRTH > date('Y')) {
111                        $keep_alive = true;
112                        break;
113                    }
114                }
115            }
116            $KEEP_ALIVE_YEARS_DEATH = (int) $this->tree->getPreference('KEEP_ALIVE_YEARS_DEATH');
117            if ($KEEP_ALIVE_YEARS_DEATH) {
118                preg_match_all('/\n1 (?:' . implode('|', Gedcom::DEATH_EVENTS) . ').*(?:\n[2-9].*)*\n2 DATE (.+)/', $this->gedcom, $matches, PREG_SET_ORDER);
119                foreach ($matches as $match) {
120                    $date = new Date($match[1]);
121                    if ($date->isOK() && $date->gregorianYear() + $KEEP_ALIVE_YEARS_DEATH > date('Y')) {
122                        $keep_alive = true;
123                        break;
124                    }
125                }
126            }
127            if (!$keep_alive) {
128                return true;
129            }
130        }
131        // Consider relationship privacy (unless an admin is applying download restrictions)
132        $user_path_length = (int) $this->tree->getUserPreference(Auth::user(), UserInterface::PREF_TREE_PATH_LENGTH);
133        $gedcomid         = $this->tree->getUserPreference(Auth::user(), UserInterface::PREF_TREE_ACCOUNT_XREF);
134
135        if ($gedcomid !== '' && $user_path_length > 0) {
136            return self::isRelated($this, $user_path_length);
137        }
138
139        // No restriction found - show living people to members only:
140        return Auth::PRIV_USER >= $access_level;
141    }
142
143    /**
144     * For relationship privacy calculations - is this individual a close relative?
145     *
146     * @param Individual $target
147     * @param int        $distance
148     *
149     * @return bool
150     */
151    private static function isRelated(Individual $target, int $distance): bool
152    {
153        static $cache = null;
154
155        $user_individual = Registry::individualFactory()->make($target->tree->getUserPreference(Auth::user(), UserInterface::PREF_TREE_ACCOUNT_XREF), $target->tree);
156        if ($user_individual) {
157            if (!$cache) {
158                $cache = [
159                    0 => [$user_individual],
160                    1 => [],
161                ];
162                foreach ($user_individual->facts(['FAMC', 'FAMS'], false, Auth::PRIV_HIDE) as $fact) {
163                    $family = $fact->target();
164                    if ($family instanceof Family) {
165                        $cache[1][] = $family;
166                    }
167                }
168            }
169        } else {
170            // No individual linked to this account? Cannot use relationship privacy.
171            return true;
172        }
173
174        // Double the distance, as we count the INDI-FAM and FAM-INDI links separately
175        $distance *= 2;
176
177        // Consider each path length in turn
178        for ($n = 0; $n <= $distance; ++$n) {
179            if (array_key_exists($n, $cache)) {
180                // We have already calculated all records with this length
181                if ($n % 2 === 0 && in_array($target, $cache[$n], true)) {
182                    return true;
183                }
184            } else {
185                // Need to calculate these paths
186                $cache[$n] = [];
187                if ($n % 2 === 0) {
188                    // Add FAM->INDI links
189                    foreach ($cache[$n - 1] as $family) {
190                        foreach ($family->facts(['HUSB', 'WIFE', 'CHIL'], false, Auth::PRIV_HIDE) as $fact) {
191                            $individual = $fact->target();
192                            // Don’t backtrack
193                            if ($individual instanceof self && !in_array($individual, $cache[$n - 2], true)) {
194                                $cache[$n][] = $individual;
195                            }
196                        }
197                    }
198                    if (in_array($target, $cache[$n], true)) {
199                        return true;
200                    }
201                } else {
202                    // Add INDI->FAM links
203                    foreach ($cache[$n - 1] as $individual) {
204                        foreach ($individual->facts(['FAMC', 'FAMS'], false, Auth::PRIV_HIDE) as $fact) {
205                            $family = $fact->target();
206                            // Don’t backtrack
207                            if ($family instanceof Family && !in_array($family, $cache[$n - 2], true)) {
208                                $cache[$n][] = $family;
209                            }
210                        }
211                    }
212                }
213            }
214        }
215
216        return false;
217    }
218
219    /**
220     * Generate a private version of this record
221     *
222     * @param int $access_level
223     *
224     * @return string
225     */
226    protected function createPrivateGedcomRecord(int $access_level): string
227    {
228        $SHOW_PRIVATE_RELATIONSHIPS = (bool) $this->tree->getPreference('SHOW_PRIVATE_RELATIONSHIPS');
229
230        $rec = '0 @' . $this->xref . '@ INDI';
231        if ((int) $this->tree->getPreference('SHOW_LIVING_NAMES') >= $access_level) {
232            // Show all the NAME tags, including subtags
233            foreach ($this->facts(['NAME']) as $fact) {
234                $rec .= "\n" . $fact->gedcom();
235            }
236        }
237        // Just show the 1 FAMC/FAMS tag, not any subtags, which may contain private data
238        preg_match_all('/\n1 (?:FAMC|FAMS) @(' . Gedcom::REGEX_XREF . ')@/', $this->gedcom, $matches, PREG_SET_ORDER);
239        foreach ($matches as $match) {
240            $rela = Registry::familyFactory()->make($match[1], $this->tree);
241            if ($rela && ($SHOW_PRIVATE_RELATIONSHIPS || $rela->canShow($access_level))) {
242                $rec .= $match[0];
243            }
244        }
245        // Don’t privatize sex.
246        if (preg_match('/\n1 SEX [MFU]/', $this->gedcom, $match)) {
247            $rec .= $match[0];
248        }
249
250        return $rec;
251    }
252
253    /**
254     * Calculate whether this individual is living or dead.
255     * If not known to be dead, then assume living.
256     *
257     * @return bool
258     */
259    public function isDead(): bool
260    {
261        $MAX_ALIVE_AGE = (int) $this->tree->getPreference('MAX_ALIVE_AGE');
262        $today_jd      = Registry::timestampFactory()->now()->julianDay();
263
264        // "1 DEAT Y" or "1 DEAT/2 DATE" or "1 DEAT/2 PLAC"
265        if (preg_match('/\n1 (?:' . implode('|', Gedcom::DEATH_EVENTS) . ')(?: Y|(?:\n[2-9].+)*\n2 (DATE|PLAC) )/', $this->gedcom)) {
266            return true;
267        }
268
269        // If any event occurred more than $MAX_ALIVE_AGE years ago, then assume the individual is dead
270        if (preg_match_all('/\n2 DATE (.+)/', $this->gedcom, $date_matches)) {
271            foreach ($date_matches[1] as $date_match) {
272                $date = new Date($date_match);
273                if ($date->isOK() && $date->maximumJulianDay() <= $today_jd - 365 * $MAX_ALIVE_AGE) {
274                    return true;
275                }
276            }
277            // The individual has one or more dated events. All are less than $MAX_ALIVE_AGE years ago.
278            // If one of these is a birth, the individual must be alive.
279            if (preg_match('/\n1 BIRT(?:\n[2-9].+)*\n2 DATE /', $this->gedcom)) {
280                return false;
281            }
282        }
283
284        // If we found no conclusive dates then check the dates of close relatives.
285
286        // Check parents (birth and adopted)
287        foreach ($this->childFamilies(Auth::PRIV_HIDE) as $family) {
288            foreach ($family->spouses(Auth::PRIV_HIDE) as $parent) {
289                // Assume parents are no more than 45 years older than their children
290                preg_match_all('/\n2 DATE (.+)/', $parent->gedcom, $date_matches);
291                foreach ($date_matches[1] as $date_match) {
292                    $date = new Date($date_match);
293                    if ($date->isOK() && $date->maximumJulianDay() <= $today_jd - 365 * ($MAX_ALIVE_AGE + 45)) {
294                        return true;
295                    }
296                }
297            }
298        }
299
300        // Check spouses
301        foreach ($this->spouseFamilies(Auth::PRIV_HIDE) as $family) {
302            preg_match_all('/\n2 DATE (.+)/', $family->gedcom, $date_matches);
303            foreach ($date_matches[1] as $date_match) {
304                $date = new Date($date_match);
305                // Assume marriage occurs after age of 10
306                if ($date->isOK() && $date->maximumJulianDay() <= $today_jd - 365 * ($MAX_ALIVE_AGE - 10)) {
307                    return true;
308                }
309            }
310            // Check spouse dates
311            $spouse = $family->spouse($this, Auth::PRIV_HIDE);
312            if ($spouse) {
313                preg_match_all('/\n2 DATE (.+)/', $spouse->gedcom, $date_matches);
314                foreach ($date_matches[1] as $date_match) {
315                    $date = new Date($date_match);
316                    // Assume max age difference between spouses of 40 years
317                    if ($date->isOK() && $date->maximumJulianDay() <= $today_jd - 365 * ($MAX_ALIVE_AGE + 40)) {
318                        return true;
319                    }
320                }
321            }
322            // Check child dates
323            foreach ($family->children(Auth::PRIV_HIDE) as $child) {
324                preg_match_all('/\n2 DATE (.+)/', $child->gedcom, $date_matches);
325                // Assume children born after age of 15
326                foreach ($date_matches[1] as $date_match) {
327                    $date = new Date($date_match);
328                    if ($date->isOK() && $date->maximumJulianDay() <= $today_jd - 365 * ($MAX_ALIVE_AGE - 15)) {
329                        return true;
330                    }
331                }
332                // Check grandchildren
333                foreach ($child->spouseFamilies(Auth::PRIV_HIDE) as $child_family) {
334                    foreach ($child_family->children(Auth::PRIV_HIDE) as $grandchild) {
335                        preg_match_all('/\n2 DATE (.+)/', $grandchild->gedcom, $date_matches);
336                        // Assume grandchildren born after age of 30
337                        foreach ($date_matches[1] as $date_match) {
338                            $date = new Date($date_match);
339                            if ($date->isOK() && $date->maximumJulianDay() <= $today_jd - 365 * ($MAX_ALIVE_AGE - 30)) {
340                                return true;
341                            }
342                        }
343                    }
344                }
345            }
346        }
347
348        return false;
349    }
350
351    /**
352     * Find the highlighted media object for an individual
353     *
354     * @return MediaFile|null
355     */
356    public function findHighlightedMediaFile(): ?MediaFile
357    {
358        $fact = $this->facts(['OBJE'])
359            ->first(static function (Fact $fact): bool {
360                $media = $fact->target();
361
362                return $media instanceof Media && $media->firstImageFile() instanceof MediaFile;
363            });
364
365        if ($fact instanceof Fact && $fact->target() instanceof Media) {
366            return $fact->target()->firstImageFile();
367        }
368
369        return null;
370    }
371
372    /**
373     * Display the preferred image for this individual.
374     * Use an icon if no image is available.
375     *
376     * @param int           $width      Pixels
377     * @param int           $height     Pixels
378     * @param string        $fit        "crop" or "contain"
379     * @param array<string> $attributes Additional HTML attributes
380     *
381     * @return string
382     */
383    public function displayImage(int $width, int $height, string $fit, array $attributes): string
384    {
385        $media_file = $this->findHighlightedMediaFile();
386
387        if ($media_file !== null) {
388            return $media_file->displayImage($width, $height, $fit, $attributes);
389        }
390
391        if ($this->tree->getPreference('USE_SILHOUETTE')) {
392            return '<i class="icon-silhouette icon-silhouette-' . strtolower($this->sex()) . ' wt-icon-flip-rtl"></i>';
393        }
394
395        return '';
396    }
397
398    /**
399     * Get the date of birth
400     *
401     * @return Date
402     */
403    public function getBirthDate(): Date
404    {
405        foreach ($this->getAllBirthDates() as $date) {
406            if ($date->isOK()) {
407                return $date;
408            }
409        }
410
411        return new Date('');
412    }
413
414    /**
415     * Get the place of birth
416     *
417     * @return Place
418     */
419    public function getBirthPlace(): Place
420    {
421        foreach ($this->getAllBirthPlaces() as $place) {
422            return $place;
423        }
424
425        return new Place('', $this->tree);
426    }
427
428    /**
429     * Get the date of death
430     *
431     * @return Date
432     */
433    public function getDeathDate(): Date
434    {
435        foreach ($this->getAllDeathDates() as $date) {
436            if ($date->isOK()) {
437                return $date;
438            }
439        }
440
441        return new Date('');
442    }
443
444    /**
445     * Get the place of death
446     *
447     * @return Place
448     */
449    public function getDeathPlace(): Place
450    {
451        foreach ($this->getAllDeathPlaces() as $place) {
452            return $place;
453        }
454
455        return new Place('', $this->tree);
456    }
457
458    /**
459     * Get the range of years in which a individual lived. e.g. “1870–”, “1870–1920”, “–1920”.
460     * Provide the place and full date using a tooltip.
461     * For consistent layout in charts, etc., show just a “–” when no dates are known.
462     * Note that this is a (non-breaking) en-dash, and not a hyphen.
463     *
464     * @return string
465     */
466    public function lifespan(): string
467    {
468        // Just the first part of the place name.
469        $birth_place = strip_tags($this->getBirthPlace()->shortName());
470        $death_place = strip_tags($this->getDeathPlace()->shortName());
471
472        // Remove markup from dates.  Use UTF_FSI / UTF_PDI instead of <bdi></bdi>, as
473        // we cannot use HTML markup in title attributes.
474        $birth_date = "\u{2068}" . strip_tags($this->getBirthDate()->display()) . "\u{2069}";
475        $death_date = "\u{2068}" . strip_tags($this->getDeathDate()->display()) . "\u{2069}";
476
477        // Use minimum and maximum dates - to agree with the age calculations.
478        $birth_year = $this->getBirthDate()->minimumDate()->format('%Y');
479        $death_year = $this->getDeathDate()->maximumDate()->format('%Y');
480
481        /* I18N: A range of years, e.g. “1870–”, “1870–1920”, “–1920” */
482        return I18N::translate(
483            '%1$s–%2$s',
484            '<span title="' . $birth_place . ' ' . $birth_date . '">' . $birth_year . '</span>',
485            '<span title="' . $death_place . ' ' . $death_date . '">' . $death_year . '</span>'
486        );
487    }
488
489    /**
490     * Get all the birth dates - for the individual lists.
491     *
492     * @return array<Date>
493     */
494    public function getAllBirthDates(): array
495    {
496        foreach (Gedcom::BIRTH_EVENTS as $event) {
497            $dates = $this->getAllEventDates([$event]);
498
499            if ($dates !== []) {
500                return $dates;
501            }
502        }
503
504        return [];
505    }
506
507    /**
508     * Gat all the birth places - for the individual lists.
509     *
510     * @return array<Place>
511     */
512    public function getAllBirthPlaces(): array
513    {
514        foreach (Gedcom::BIRTH_EVENTS as $event) {
515            $places = $this->getAllEventPlaces([$event]);
516
517            if ($places !== []) {
518                return $places;
519            }
520        }
521
522        return [];
523    }
524
525    /**
526     * Get all the death dates - for the individual lists.
527     *
528     * @return array<Date>
529     */
530    public function getAllDeathDates(): array
531    {
532        foreach (Gedcom::DEATH_EVENTS as $event) {
533            $dates = $this->getAllEventDates([$event]);
534
535            if ($dates !== []) {
536                return $dates;
537            }
538        }
539
540        return [];
541    }
542
543    /**
544     * Get all the death places - for the individual lists.
545     *
546     * @return array<Place>
547     */
548    public function getAllDeathPlaces(): array
549    {
550        foreach (Gedcom::DEATH_EVENTS as $event) {
551            $places = $this->getAllEventPlaces([$event]);
552
553            if ($places !== []) {
554                return $places;
555            }
556        }
557
558        return [];
559    }
560
561    /**
562     * Generate an estimate for the date of birth, based on dates of parents/children/spouses
563     *
564     * @return Date
565     */
566    public function getEstimatedBirthDate(): Date
567    {
568        if ($this->estimated_birth_date === null) {
569            foreach ($this->getAllBirthDates() as $date) {
570                if ($date->isOK()) {
571                    $this->estimated_birth_date = $date;
572                    break;
573                }
574            }
575            if ($this->estimated_birth_date === null) {
576                $min = [];
577                $max = [];
578                $tmp = $this->getDeathDate();
579                if ($tmp->isOK()) {
580                    $min[] = $tmp->minimumJulianDay() - $this->tree->getPreference('MAX_ALIVE_AGE') * 365;
581                    $max[] = $tmp->maximumJulianDay();
582                }
583                foreach ($this->childFamilies() as $family) {
584                    $tmp = $family->getMarriageDate();
585                    if ($tmp->isOK()) {
586                        $min[] = $tmp->maximumJulianDay() - 365 * 1;
587                        $max[] = $tmp->minimumJulianDay() + 365 * 30;
588                    }
589                    $husband = $family->husband();
590                    if ($husband instanceof self) {
591                        $tmp = $husband->getBirthDate();
592                        if ($tmp->isOK()) {
593                            $min[] = $tmp->maximumJulianDay() + 365 * 15;
594                            $max[] = $tmp->minimumJulianDay() + 365 * 65;
595                        }
596                    }
597                    $wife = $family->wife();
598                    if ($wife instanceof self) {
599                        $tmp = $wife->getBirthDate();
600                        if ($tmp->isOK()) {
601                            $min[] = $tmp->maximumJulianDay() + 365 * 15;
602                            $max[] = $tmp->minimumJulianDay() + 365 * 45;
603                        }
604                    }
605                    foreach ($family->children() as $child) {
606                        $tmp = $child->getBirthDate();
607                        if ($tmp->isOK()) {
608                            $min[] = $tmp->maximumJulianDay() - 365 * 30;
609                            $max[] = $tmp->minimumJulianDay() + 365 * 30;
610                        }
611                    }
612                }
613                foreach ($this->spouseFamilies() as $family) {
614                    $tmp = $family->getMarriageDate();
615                    if ($tmp->isOK()) {
616                        $min[] = $tmp->maximumJulianDay() - 365 * 45;
617                        $max[] = $tmp->minimumJulianDay() - 365 * 15;
618                    }
619                    $spouse = $family->spouse($this);
620                    if ($spouse) {
621                        $tmp = $spouse->getBirthDate();
622                        if ($tmp->isOK()) {
623                            $min[] = $tmp->maximumJulianDay() - 365 * 25;
624                            $max[] = $tmp->minimumJulianDay() + 365 * 25;
625                        }
626                    }
627                    foreach ($family->children() as $child) {
628                        $tmp = $child->getBirthDate();
629                        if ($tmp->isOK()) {
630                            $min[] = $tmp->maximumJulianDay() - 365 * ($this->sex() === 'F' ? 45 : 65);
631                            $max[] = $tmp->minimumJulianDay() - 365 * 15;
632                        }
633                    }
634                }
635                if ($min && $max) {
636                    $gregorian_calendar = new GregorianCalendar();
637
638                    [$year] = $gregorian_calendar->jdToYmd(intdiv(max($min) + min($max), 2));
639                    $this->estimated_birth_date = new Date('EST ' . $year);
640                } else {
641                    $this->estimated_birth_date = new Date(''); // always return a date object
642                }
643            }
644        }
645
646        return $this->estimated_birth_date;
647    }
648
649    /**
650     * Generate an estimated date of death.
651     *
652     * @return Date
653     */
654    public function getEstimatedDeathDate(): Date
655    {
656        if ($this->estimated_death_date === null) {
657            foreach ($this->getAllDeathDates() as $date) {
658                if ($date->isOK()) {
659                    $this->estimated_death_date = $date;
660                    break;
661                }
662            }
663            if ($this->estimated_death_date === null) {
664                if ($this->getEstimatedBirthDate()->minimumJulianDay()) {
665                    $max_alive_age              = (int) $this->tree->getPreference('MAX_ALIVE_AGE');
666                    $this->estimated_death_date = $this->getEstimatedBirthDate()->addYears($max_alive_age, 'BEF');
667                } else {
668                    $this->estimated_death_date = new Date(''); // always return a date object
669                }
670            }
671        }
672
673        return $this->estimated_death_date;
674    }
675
676    /**
677     * Get the sex - M F or U
678     * Use the un-privatised gedcom record. We call this function during
679     * the privatize-gedcom function, and we are allowed to know this.
680     *
681     * @return string
682     */
683    public function sex(): string
684    {
685        if (preg_match('/\n1 SEX ([MFX])/', $this->gedcom . $this->pending, $match)) {
686            return $match[1];
687        }
688
689        return 'U';
690    }
691
692    /**
693     * Get a list of this individual’s spouse families
694     *
695     * @param int|null $access_level
696     *
697     * @return Collection<int,Family>
698     */
699    public function spouseFamilies(int $access_level = null): Collection
700    {
701        $access_level ??= Auth::accessLevel($this->tree);
702
703        if ($this->tree->getPreference('SHOW_PRIVATE_RELATIONSHIPS') === '1') {
704            $access_level = Auth::PRIV_HIDE;
705        }
706
707        $families = new Collection();
708        foreach ($this->facts(['FAMS'], false, $access_level) as $fact) {
709            $family = $fact->target();
710            if ($family instanceof Family && $family->canShow($access_level)) {
711                $families->push($family);
712            }
713        }
714
715        return new Collection($families);
716    }
717
718    /**
719     * Get the current spouse of this individual.
720     *
721     * Where an individual has multiple spouses, assume they are stored
722     * in chronological order, and take the last one found.
723     *
724     * @return Individual|null
725     */
726    public function getCurrentSpouse(): ?Individual
727    {
728        $family = $this->spouseFamilies()->last();
729
730        if ($family instanceof Family) {
731            return $family->spouse($this);
732        }
733
734        return null;
735    }
736
737    /**
738     * Count the children belonging to this individual.
739     *
740     * @return int
741     */
742    public function numberOfChildren(): int
743    {
744        if (preg_match('/\n1 NCHI (\d+)(?:\n|$)/', $this->gedcom(), $match)) {
745            return (int) $match[1];
746        }
747
748        $children = [];
749        foreach ($this->spouseFamilies() as $fam) {
750            foreach ($fam->children() as $child) {
751                $children[$child->xref()] = true;
752            }
753        }
754
755        return count($children);
756    }
757
758    /**
759     * Get a list of this individual’s child families (i.e. their parents).
760     *
761     * @param int|null $access_level
762     *
763     * @return Collection<int,Family>
764     */
765    public function childFamilies(int $access_level = null): Collection
766    {
767        $access_level ??= Auth::accessLevel($this->tree);
768
769        if ($this->tree->getPreference('SHOW_PRIVATE_RELATIONSHIPS') === '1') {
770            $access_level = Auth::PRIV_HIDE;
771        }
772
773        $families = new Collection();
774
775        foreach ($this->facts(['FAMC'], false, $access_level) as $fact) {
776            $family = $fact->target();
777            if ($family instanceof Family && $family->canShow($access_level)) {
778                $families->push($family);
779            }
780        }
781
782        return $families;
783    }
784
785    /**
786     * Get a list of step-parent families.
787     *
788     * @return Collection<int,Family>
789     */
790    public function childStepFamilies(): Collection
791    {
792        $step_families = new Collection();
793        $families      = $this->childFamilies();
794        foreach ($families as $family) {
795            foreach ($family->spouses() as $parent) {
796                foreach ($parent->spouseFamilies() as $step_family) {
797                    if (!$families->containsStrict($step_family)) {
798                        $step_families->add($step_family);
799                    }
800                }
801            }
802        }
803
804        return $step_families->uniqueStrict(static function (Family $family): string {
805            return $family->xref();
806        });
807    }
808
809    /**
810     * Get a list of step-parent families.
811     *
812     * @return Collection<int,Family>
813     */
814    public function spouseStepFamilies(): Collection
815    {
816        $step_families = [];
817        $families      = $this->spouseFamilies();
818
819        foreach ($families as $family) {
820            $spouse = $family->spouse($this);
821
822            if ($spouse instanceof self) {
823                foreach ($family->spouse($this)->spouseFamilies() as $step_family) {
824                    if (!$families->containsStrict($step_family)) {
825                        $step_families[] = $step_family;
826                    }
827                }
828            }
829        }
830
831        return new Collection($step_families);
832    }
833
834    /**
835     * A label for a parental family group
836     *
837     * @param Family $family
838     *
839     * @return string
840     */
841    public function getChildFamilyLabel(Family $family): string
842    {
843        $fact = $this->facts(['FAMC'])->first(static fn (Fact $fact): bool => $fact->target() === $family);
844
845        if ($fact instanceof Fact) {
846            $pedigree = $fact->attribute('PEDI');
847        } else {
848            $pedigree = '';
849        }
850
851        $values = [
852            PedigreeLinkageType::VALUE_BIRTH   => I18N::translate('Family with parents'),
853            PedigreeLinkageType::VALUE_ADOPTED => I18N::translate('Family with adoptive parents'),
854            PedigreeLinkageType::VALUE_FOSTER  => I18N::translate('Family with foster parents'),
855            /* I18N: “sealing” is a Mormon ceremony. */
856            PedigreeLinkageType::VALUE_SEALING => I18N::translate('Family with sealing parents'),
857            /* I18N: “rada” is an Arabic word, pronounced “ra DAH”. It is child-to-parent pedigree, established by wet-nursing. */
858            PedigreeLinkageType::VALUE_RADA    => I18N::translate('Family with rada parents'),
859        ];
860
861        return $values[$pedigree] ?? $values[PedigreeLinkageType::VALUE_BIRTH];
862    }
863
864    /**
865     * Create a label for a step family
866     *
867     * @param Family $step_family
868     *
869     * @return string
870     */
871    public function getStepFamilyLabel(Family $step_family): string
872    {
873        foreach ($this->childFamilies() as $family) {
874            if ($family !== $step_family) {
875                // Must be a step-family
876                foreach ($family->spouses() as $parent) {
877                    foreach ($step_family->spouses() as $step_parent) {
878                        if ($parent === $step_parent) {
879                            // One common parent - must be a step family
880                            if ($parent->sex() === 'M') {
881                                // Father’s family with someone else
882                                if ($step_family->spouse($step_parent)) {
883                                    /* I18N: A step-family. %s is an individual’s name */
884                                    return I18N::translate('Father’s family with %s', $step_family->spouse($step_parent)->fullName());
885                                }
886
887                                /* I18N: A step-family. */
888                                return I18N::translate('Father’s family with an unknown individual');
889                            }
890
891                            // Mother’s family with someone else
892                            if ($step_family->spouse($step_parent)) {
893                                /* I18N: A step-family. %s is an individual’s name */
894                                return I18N::translate('Mother’s family with %s', $step_family->spouse($step_parent)->fullName());
895                            }
896
897                            /* I18N: A step-family. */
898                            return I18N::translate('Mother’s family with an unknown individual');
899                        }
900                    }
901                }
902            }
903        }
904
905        // Perahps same parents - but a different family record?
906        return I18N::translate('Family with parents');
907    }
908
909    /**
910     * Get the description for the family.
911     *
912     * For example, "XXX's family with new wife".
913     *
914     * @param Family $family
915     *
916     * @return string
917     */
918    public function getSpouseFamilyLabel(Family $family): string
919    {
920        $spouse = $family->spouse($this);
921        if ($spouse) {
922            /* I18N: %s is the spouse name */
923            return I18N::translate('Family with %s', $spouse->fullName());
924        }
925
926        return $family->fullName();
927    }
928
929    /**
930     * If this object has no name, what do we call it?
931     *
932     * @return string
933     */
934    public function getFallBackName(): string
935    {
936        return '@P.N. /@N.N./';
937    }
938
939    /**
940     * Convert a name record into ‘full’ and ‘sort’ versions.
941     * Use the NAME field to generate the ‘full’ version, as the
942     * gedcom spec says that this is the individual’s name, as they would write it.
943     * Use the SURN field to generate the sortable names. Note that this field
944     * may also be used for the ‘true’ surname, perhaps spelt differently to that
945     * recorded in the NAME field. e.g.
946     *
947     * 1 NAME Robert /de Gliderow/
948     * 2 GIVN Robert
949     * 2 SPFX de
950     * 2 SURN CLITHEROW
951     * 2 NICK The Bald
952     *
953     * full=>'Robert de Gliderow 'The Bald''
954     * sort=>'CLITHEROW, ROBERT'
955     *
956     * Handle multiple surnames, either as;
957     *
958     * 1 NAME Carlos /Vasquez/ y /Sante/
959     * or
960     * 1 NAME Carlos /Vasquez y Sante/
961     * 2 GIVN Carlos
962     * 2 SURN Vasquez,Sante
963     *
964     * @param string $type
965     * @param string $value
966     * @param string $gedcom
967     *
968     * @return void
969     */
970    protected function addName(string $type, string $value, string $gedcom): void
971    {
972        ////////////////////////////////////////////////////////////////////////////
973        // Extract the structured name parts - use for "sortable" names and indexes
974        ////////////////////////////////////////////////////////////////////////////
975
976        $sublevel = 1 + (int) substr($gedcom, 0, 1);
977        $GIVN     = preg_match('/\n' . $sublevel . ' GIVN (.+)/', $gedcom, $match) === 1 ? $match[1] : '';
978        $SURN     = preg_match('/\n' . $sublevel . ' SURN (.+)/', $gedcom, $match) === 1 ? $match[1] : '';
979
980        // SURN is an comma-separated list of surnames...
981        if ($SURN !== '') {
982            $SURNS = preg_split('/ *, */', $SURN);
983        } else {
984            $SURNS = [];
985        }
986
987        // ...so is GIVN - but nobody uses it like that
988        $GIVN = str_replace('/ *, */', ' ', $GIVN);
989
990        ////////////////////////////////////////////////////////////////////////////
991        // Extract the components from NAME - use for the "full" names
992        ////////////////////////////////////////////////////////////////////////////
993
994        // Fix bad slashes. e.g. 'John/Smith' => 'John/Smith/'
995        if (substr_count($value, '/') % 2 === 1) {
996            $value .= '/';
997        }
998
999        // GEDCOM uses "//" to indicate an unknown surname
1000        $full = preg_replace('/\/\//', '/@N.N./', $value);
1001
1002        // Extract the surname.
1003        // Note, there may be multiple surnames, e.g. Jean /Vasquez/ y /Cortes/
1004        if (preg_match('/\/.*\//', $full, $match)) {
1005            $surname = str_replace('/', '', $match[0]);
1006        } else {
1007            $surname = '';
1008        }
1009
1010        // If we don’t have a SURN record, extract it from the NAME
1011        if (!$SURNS) {
1012            if (preg_match_all('/\/([^\/]*)\//', $full, $matches)) {
1013                // There can be many surnames, each wrapped with '/'
1014                $SURNS = $matches[1];
1015                foreach ($SURNS as $n => $SURN) {
1016                    // Remove surname prefixes, such as "van de ", "d'" and "'t " (lower case only)
1017                    $SURNS[$n] = preg_replace('/^(?:[a-z]+ |[a-z]+\' ?|\'[a-z]+ )+/', '', $SURN);
1018                }
1019            } else {
1020                // It is valid not to have a surname at all
1021                $SURNS = [''];
1022            }
1023        }
1024
1025        // If we don’t have a GIVN record, extract it from the NAME
1026        if (!$GIVN) {
1027            // remove surname
1028            $GIVN = preg_replace('/ ?\/.*\/ ?/', ' ', $full);
1029            // remove nickname
1030            $GIVN = preg_replace('/ ?".+"/', ' ', $GIVN);
1031            // multiple spaces, caused by the above
1032            $GIVN = preg_replace('/ {2,}/', ' ', $GIVN);
1033            // leading/trailing spaces, caused by the above
1034            $GIVN = preg_replace('/^ | $/', '', $GIVN);
1035        }
1036
1037        // Add placeholder for unknown given name
1038        if (!$GIVN) {
1039            $GIVN = self::PRAENOMEN_NESCIO;
1040            $pos  = (int) strpos($full, '/');
1041            $full = substr($full, 0, $pos) . '@P.N. ' . substr($full, $pos);
1042        }
1043
1044        // Remove slashes - they don’t get displayed
1045        // $fullNN keeps the @N.N. placeholders, for the database
1046        // $full is for display on-screen
1047        $fullNN = str_replace('/', '', $full);
1048
1049        // Insert placeholders for any missing/unknown names
1050        $full = str_replace(self::NOMEN_NESCIO, I18N::translateContext('Unknown surname', '…'), $full);
1051        $full = str_replace(self::PRAENOMEN_NESCIO, I18N::translateContext('Unknown given name', '…'), $full);
1052        // Format for display
1053        $full = '<span class="NAME" dir="auto" translate="no">' . preg_replace('/\/([^\/]*)\//', '<span class="SURN">$1</span>', e($full)) . '</span>';
1054        // Localise quotation marks around the nickname
1055        $full = preg_replace_callback('/&quot;([^&]*)&quot;/', static function (array $matches): string {
1056            return '<q class="wt-nickname">' . $matches[1] . '</q>';
1057        }, $full);
1058
1059        // A suffix of “*” indicates a preferred name
1060        $full = preg_replace('/([^ >\x{200C}]*)\*/u', '<span class="starredname">\\1</span>', $full);
1061
1062        // Remove prefered-name indicater - they don’t go in the database
1063        $GIVN   = str_replace('*', '', $GIVN);
1064        $fullNN = str_replace('*', '', $fullNN);
1065
1066        foreach ($SURNS as $SURN) {
1067            // Scottish 'Mc and Mac ' prefixes both sort under 'Mac'
1068            if (strcasecmp(substr($SURN, 0, 2), 'Mc') === 0) {
1069                $SURN = substr_replace($SURN, 'Mac', 0, 2);
1070            } elseif (strcasecmp(substr($SURN, 0, 4), 'Mac ') === 0) {
1071                $SURN = substr_replace($SURN, 'Mac', 0, 4);
1072            }
1073
1074            $this->getAllNames[] = [
1075                'type'    => $type,
1076                'sort'    => $SURN . ',' . $GIVN,
1077                'full'    => $full,
1078                // This is used for display
1079                'fullNN'  => $fullNN,
1080                // This goes into the database
1081                'surname' => $surname,
1082                // This goes into the database
1083                'givn'    => $GIVN,
1084                // This goes into the database
1085                'surn'    => $SURN,
1086                // This goes into the database
1087            ];
1088        }
1089    }
1090
1091    /**
1092     * Extract names from the GEDCOM record.
1093     *
1094     * @return void
1095     */
1096    public function extractNames(): void
1097    {
1098        $access_level = $this->canShowName() ? Auth::PRIV_HIDE : Auth::accessLevel($this->tree);
1099
1100        $this->extractNamesFromFacts(
1101            1,
1102            'NAME',
1103            $this->facts(['NAME'], false, $access_level)
1104        );
1105    }
1106
1107    /**
1108     * Extra info to display when displaying this record in a list of
1109     * selection items or favorites.
1110     *
1111     * @return string
1112     */
1113    public function formatListDetails(): string
1114    {
1115        return
1116            $this->formatFirstMajorFact(Gedcom::BIRTH_EVENTS, 1) .
1117            $this->formatFirstMajorFact(Gedcom::DEATH_EVENTS, 1);
1118    }
1119
1120    /**
1121     * Lock the database row, to prevent concurrent edits.
1122     */
1123    public function lock(): void
1124    {
1125        DB::table('individuals')
1126            ->where('i_file', '=', $this->tree->id())
1127            ->where('i_id', '=', $this->xref())
1128            ->lockForUpdate()
1129            ->get();
1130    }
1131}
1132