<?php

declare(strict_types = 1);

/**
 * This file is part of the 'Yasumi' package.
 *
 * The easy PHP Library for calculating holidays.
 *
 * Copyright (c) 2015 - 2026 AzuyaLabs
 *
 * For the full copyright and license information, please view the LICENSE
 * file that was distributed with this source code.
 *
 * @author Sacha Telgenhof <me at sachatelgenhof dot com>
 */

namespace Yasumi\Provider;

use Yasumi\Exception\UnknownLocaleException;
use Yasumi\Holiday;

/**
 * Note: Any Islamic holidays are not part of this provider yet. Islamic holidays are quite complex and at first,
 * only other holidays are implemented.
 */
class Turkey extends AbstractProvider
{
    use CommonHolidays;

    /** {@inheritdoc} */
    public const ID = 'TR';

    /**
     * @throws \InvalidArgumentException
     * @throws UnknownLocaleException
     * @throws \Exception
     */
    public function initialize(): void
    {
        $this->timezone = 'Europe/Istanbul';

        // Add common holidays
        $this->addHoliday($this->newYearsDay($this->year, $this->timezone, $this->locale));
        $this->addNationalSovereigntyDay();
        $this->addLabourDay();
        $this->addCommemorationOfAtaturk();
        $this->addDemocracyDay();
        $this->addVictoryDay();
        $this->addRepublicDay();
    }

    public function getSources(): array
    {
        return [
            'https://en.wikipedia.org/wiki/Public_holidays_in_Turkey',
            'https://tr.wikipedia.org/wiki/T%C3%BCrkiye%27deki_resm%C3%AE_tatiller',
        ];
    }

    /**
     * @throws \Exception
     */
    protected function addLabourDay(): void
    {
        $this->addHoliday(new Holiday('labourDay', [
            'tr' => 'Emek ve Dayanışma Günü',
        ], new \DateTime("{$this->year}-05-01", new \DateTimeZone($this->timezone)), $this->locale));
    }

    /**
     * Commemoration of the first opening of the Grand National Assembly of Turkey at Ankara in 1920.
     * Dedicated to the children.
     *
     * Not sure if 1920 is the first year of celebration as above source mentions Law No. 3466 that "May 19" was
     * made official June 20, 1938.
     *
     * @see https://en.wikipedia.org/wiki/Commemoration_of_Atat%C3%BCrk,_Youth_and_Sports_Day
     *
     * @throws \Exception
     */
    protected function addCommemorationOfAtaturk(): void
    {
        if (1920 > $this->year) {
            return;
        }

        $this->addHoliday(new Holiday('commemorationAtaturk', [
            'tr' => 'Atatürk’ü Anma, Gençlik ve Spor Bayramı',
        ], new \DateTime("{$this->year}-05-19", new \DateTimeZone($this->timezone)), $this->locale));
    }

    /**
     * National Sovereignty and Children's Day (Turkish: Ulusal Egemenlik ve Çocuk Bayramı) is a public holiday in
     * Turkey commemorating the foundation of the Grand National Assembly of Turkey, on 23 April 1920.
     * Since 1927, the holiday has also been celebrated as a children's day.
     *
     * @see https://en.wikipedia.org/wiki/National_Sovereignty_and_Children%27s_Day
     *
     * @throws \Exception
     */
    protected function addNationalSovereigntyDay(): void
    {
        if (1922 > $this->year) {
            return;
        }

        $holidayName = 'Ulusal Egemenlik Bayramı';

        // In 1981 this day was officially named 'Ulusal Egemenlik ve Çocuk Bayramı'
        if (1981 <= $this->year) {
            $holidayName = 'Ulusal Egemenlik ve Çocuk Bayramı';
        }

        $this->addHoliday(new Holiday('nationalSovereigntyDay', [
            'tr' => $holidayName,
        ], new \DateTime("{$this->year}-04-23", new \DateTimeZone($this->timezone)), $this->locale));
    }

    /**
     * The Democracy and National Unity Day of Turkey (Turkish: Demokrasi ve Milli Birlik Günü) is one of the public
     * holidays in Turkey, commemorating the national unity against the coup d'état attempt for democracy in 2016.
     *
     * @see https://en.wikipedia.org/wiki/Democracy_and_National_Unity_Day
     *
     * @throws \Exception
     */
    protected function addDemocracyDay(): void
    {
        if (2017 > $this->year) {
            return;
        }

        $this->addHoliday(new Holiday('democracyDay', [
            'tr' => 'Demokrasi ve Millî Birlik Günü',
        ], new \DateTime("{$this->year}-07-15", new \DateTimeZone($this->timezone)), $this->locale));
    }

    /**
     * Victory Day (Turkish: Zafer Bayramı), also known as Turkish Armed Forces Day, is a public holiday in Turkey
     * commemorating the decisive victory in the Battle of Dumlupınar, on 30 August 1922.
     *
     * @see https://en.wikipedia.org/wiki/Victory_Day_(Turkey)
     *
     * @throws \Exception
     */
    protected function addVictoryDay(): void
    {
        if (1923 > $this->year) {
            return;
        }

        $holidayType = Holiday::TYPE_OFFICIAL;

        // Victory Day has been celebrated as an official holiday since 1926, and was first celebrated on 30 August
        // 1923.
        if (1923 <= $this->year && 1926 > $this->year) {
            $holidayType = Holiday::TYPE_OBSERVANCE;
        }

        $this->addHoliday(new Holiday('victoryDay', [
            'tr' => 'Zafer Bayramı',
        ], new \DateTime("{$this->year}-08-30", new \DateTimeZone($this->timezone)), $this->locale, $holidayType));
    }

    /**
     * Republic Day (Turkish: Cumhuriyet Bayramı) is a public holiday in Turkey commemorating the proclamation of the
     * Republic of Turkey, on 29 October 1923. The annual celebrations start at 1:00 pm on 28 October and continue for
     * 35 hours.
     *
     * Note: the start of the celebrations the preceding day at 1:00pm is not covered in this library.
     *
     * @see https://en.wikipedia.org/wiki/Republic_Day_(Turkey)
     *
     * @throws \Exception
     */
    protected function addRepublicDay(): void
    {
        if (1924 > $this->year) {
            return;
        }

        $this->addHoliday(new Holiday('republicDay', [
            'tr' => 'Cumhuriyet Bayramı',
        ], new \DateTime("{$this->year}-10-29", new \DateTimeZone($this->timezone)), $this->locale));
    }
}
