<?php

/**
 * webtrees: online genealogy
 * Copyright (C) 2025 webtrees development team
 * This program 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 3 of the License, or
 * (at your option) any later version.
 * This program 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 this program. If not, see <https://www.gnu.org/licenses/>.
 */

declare(strict_types=1);

namespace Fisharebest\Webtrees\SurnameTradition;

use Fisharebest\Webtrees\Elements\NameType;
use Fisharebest\Webtrees\I18N;
use Fisharebest\Webtrees\Individual;

/**
 * Lithuanian — Children take their father’s surname. Wives take their husband’s surname. Surnames are inflected to indicate an individual’s sex and marital status.
 */
class LithuanianSurnameTradition extends PaternalSurnameTradition
{
    // Inflect a surname for wives
    private const INFLECT_WIFE = [
        'as\b' => 'ienė',
        'is\b' => 'ienė',
        'ys\b' => 'ienė',
        'us\b' => 'ienė',
    ];

    // Inflect a surname for daughters
    private const INFLECT_DAUGHTER = [
        'a\b'   => 'aitė',
        'as\b'  => 'aitė',
        'is\b'  => 'ytė',
        'ys\b'  => 'ytė',
        'ius\b' => 'iūtė',
        'us\b'  => 'utė',
    ];

    // Inflect a surname for males
    private const INFLECT_MALE = [
        'aitė\b' => 'as',
        'ytė\b'  => 'is',
        'iūtė\b' => 'ius',
        'utė\b'  => 'us',
    ];

    /**
     * The name of this surname tradition
     *
     * @return string
     */
    public function name(): string
    {
        return I18N::translateContext('Surname tradition', 'Lithuanian');
    }

    /**
     * A short description of this surname tradition
     *
     * @return string
     */
    public function description(): string
    {
        /* I18N: In the Lithuanian surname tradition, ... */
        return
            I18N::translate('Children take their father’s surname.') . ' ' .
            I18N::translate('Wives take their husband’s surname.') . ' ' .
            I18N::translate('Surnames are inflected to indicate an individual’s sex and marital status.');
    }

    /**
     * What name is given to a new child
     *
     * @param Individual|null $father
     * @param Individual|null $mother
     * @param string          $sex
     *
     * @return array<int,string>
     */
    public function newChildNames(?Individual $father, ?Individual $mother, string $sex): array
    {
        if (preg_match(self::REGEX_SURN, $this->extractName($father), $match) === 1) {
            if ($sex === 'F') {
                $name = $this->inflect($match['NAME'], self::INFLECT_DAUGHTER);
                $surn = $this->inflect($match['SURN'], self::INFLECT_MALE);
            } else {
                $name = $match['NAME'];
                $surn = $match['SURN'];
            }

            return [
                $this->buildName($name, ['TYPE' => NameType::VALUE_BIRTH, 'SURN' => $surn]),
            ];
        }

        return [
            $this->buildName('//', ['TYPE' => NameType::VALUE_BIRTH]),
        ];
    }

    /**
     * What name is given to a new parent
     *
     * @param Individual $child
     * @param string     $sex
     *
     * @return array<int,string>
     */
    public function newParentNames(Individual $child, string $sex): array
    {
        if ($sex === 'M' && preg_match(self::REGEX_SURN, $this->extractName($child), $match) === 1) {
            $name = $this->inflect($match['NAME'], self::INFLECT_MALE);
            $surn = $this->inflect($match['SURN'], self::INFLECT_MALE);

            return [
                $this->buildName($name, ['TYPE' => NameType::VALUE_BIRTH, 'SURN' => $surn]),
            ];
        }

        return [
            $this->buildName('//', ['TYPE' => NameType::VALUE_BIRTH]),
        ];
    }

    /**
     * What names are given to a new spouse
     *
     * @param Individual $spouse
     * @param string     $sex
     *
     * @return array<int,string>
     */
    public function newSpouseNames(Individual $spouse, string $sex): array
    {
        if ($sex === 'F' && preg_match(self::REGEX_SURN, $this->extractName($spouse), $match) === 1) {
            $name = $this->inflect($match['NAME'], self::INFLECT_WIFE);
            $surn = $this->inflect($match['SURN'], self::INFLECT_MALE);

            return [
                $this->buildName('//', ['TYPE' => NameType::VALUE_BIRTH]),
                $this->buildName($name, ['TYPE' => NameType::VALUE_MARRIED, 'SURN' => $surn]),
            ];
        }

        return [
            $this->buildName('//', ['TYPE' => NameType::VALUE_BIRTH]),
        ];
    }
}
