<?php

if (!defined('WEBTOTEM_INIT') || WEBTOTEM_INIT !== true) {
	if (!headers_sent()) {
		/* Report invalid access if possible. */
		header('HTTP/1.1 403 Forbidden');
	}
	exit(1);
}

/**
 * WebTotem CountryManager class for Wordpress.
 */
class WebTotemCountryManager {

	/**
	 * An array of country code => country name pairs.
	 */
	protected $countries;

	/**
	 * Get an array of all two-letter country code => country name pairs.
	 *
	 * @return array
	 *   An array of country code => country name pairs.
	 */
	public static function getStandardList() {
		$countries = [
			'AC' => __('Ascension Island', 'wtotem'),
			'AD' => __('Andorra', 'wtotem'),
			'AE' => __('United Arab Emirates', 'wtotem'),
			'AF' => __('Afghanistan', 'wtotem'),
			'AG' => __('Antigua & Barbuda', 'wtotem'),
			'AI' => __('Anguilla', 'wtotem'),
			'AL' => __('Albania', 'wtotem'),
			'AM' => __('Armenia', 'wtotem'),
			'AN' => __('Netherlands Antilles', 'wtotem'),
			'AO' => __('Angola', 'wtotem'),
			'AQ' => __('Antarctica', 'wtotem'),
			'AR' => __('Argentina', 'wtotem'),
			'AS' => __('American Samoa', 'wtotem'),
			'AT' => __('Austria', 'wtotem'),
			'AU' => __('Australia', 'wtotem'),
			'AW' => __('Aruba', 'wtotem'),
			'AX' => __('Åland Islands', 'wtotem'),
			'AZ' => __('Azerbaijan', 'wtotem'),
			'BA' => __('Bosnia & Herzegovina', 'wtotem'),
			'BB' => __('Barbados', 'wtotem'),
			'BD' => __('Bangladesh', 'wtotem'),
			'BE' => __('Belgium', 'wtotem'),
			'BF' => __('Burkina Faso', 'wtotem'),
			'BG' => __('Bulgaria', 'wtotem'),
			'BH' => __('Bahrain', 'wtotem'),
			'BI' => __('Burundi', 'wtotem'),
			'BJ' => __('Benin', 'wtotem'),
			'BL' => __('St. Barthélemy', 'wtotem'),
			'BM' => __('Bermuda', 'wtotem'),
			'BN' => __('Brunei', 'wtotem'),
			'BO' => __('Bolivia', 'wtotem'),
			'BQ' => __('Caribbean Netherlands', 'wtotem'),
			'BR' => __('Brazil', 'wtotem'),
			'BS' => __('Bahamas', 'wtotem'),
			'BT' => __('Bhutan', 'wtotem'),
			'BV' => __('Bouvet Island', 'wtotem'),
			'BW' => __('Botswana', 'wtotem'),
			'BY' => __('Belarus', 'wtotem'),
			'BZ' => __('Belize', 'wtotem'),
			'CA' => __('Canada', 'wtotem'),
			'CC' => __('Cocos (Keeling) Islands', 'wtotem'),
			'CD' => __('Congo - Kinshasa', 'wtotem'),
			'CF' => __('Central African Republic', 'wtotem'),
			'CG' => __('Congo - Brazzaville', 'wtotem'),
			'CH' => __('Switzerland', 'wtotem'),
			'CI' => __('Côte d’Ivoire', 'wtotem'),
			'CK' => __('Cook Islands', 'wtotem'),
			'CL' => __('Chile', 'wtotem'),
			'CM' => __('Cameroon', 'wtotem'),
			'CN' => __('China', 'wtotem'),
			'CO' => __('Colombia', 'wtotem'),
			'CP' => __('Clipperton Island', 'wtotem'),
			'CR' => __('Costa Rica', 'wtotem'),
			'CU' => __('Cuba', 'wtotem'),
			'CV' => __('Cape Verde', 'wtotem'),
			'CW' => __('Curaçao', 'wtotem'),
			'CX' => __('Christmas Island', 'wtotem'),
			'CY' => __('Cyprus', 'wtotem'),
			'CZ' => __('Czechia', 'wtotem'),
			'DE' => __('Germany', 'wtotem'),
			'DG' => __('Diego Garcia', 'wtotem'),
			'DJ' => __('Djibouti', 'wtotem'),
			'DK' => __('Denmark', 'wtotem'),
			'DM' => __('Dominica', 'wtotem'),
			'DO' => __('Dominican Republic', 'wtotem'),
			'DZ' => __('Algeria', 'wtotem'),
			'EA' => __('Ceuta & Melilla', 'wtotem'),
			'EC' => __('Ecuador', 'wtotem'),
			'EE' => __('Estonia', 'wtotem'),
			'EG' => __('Egypt', 'wtotem'),
			'EH' => __('Western Sahara', 'wtotem'),
			'ER' => __('Eritrea', 'wtotem'),
			'ES' => __('Spain', 'wtotem'),
			'ET' => __('Ethiopia', 'wtotem'),
			'FI' => __('Finland', 'wtotem'),
			'FJ' => __('Fiji', 'wtotem'),
			'FK' => __('Falkland Islands', 'wtotem'),
			'FM' => __('Micronesia', 'wtotem'),
			'FO' => __('Faroe Islands', 'wtotem'),
			'FR' => __('France', 'wtotem'),
			'GA' => __('Gabon', 'wtotem'),
			'GB' => __('United Kingdom', 'wtotem'),
			'GD' => __('Grenada', 'wtotem'),
			'GE' => __('Georgia', 'wtotem'),
			'GF' => __('French Guiana', 'wtotem'),
			'GG' => __('Guernsey', 'wtotem'),
			'GH' => __('Ghana', 'wtotem'),
			'GI' => __('Gibraltar', 'wtotem'),
			'GL' => __('Greenland', 'wtotem'),
			'GM' => __('Gambia', 'wtotem'),
			'GN' => __('Guinea', 'wtotem'),
			'GP' => __('Guadeloupe', 'wtotem'),
			'GQ' => __('Equatorial Guinea', 'wtotem'),
			'GR' => __('Greece', 'wtotem'),
			'GS' => __('South Georgia & South Sandwich Islands', 'wtotem'),
			'GT' => __('Guatemala', 'wtotem'),
			'GU' => __('Guam', 'wtotem'),
			'GW' => __('Guinea-Bissau', 'wtotem'),
			'GY' => __('Guyana', 'wtotem'),
			'HK' => __('Hong Kong SAR China', 'wtotem'),
			'HM' => __('Heard & McDonald Islands', 'wtotem'),
			'HN' => __('Honduras', 'wtotem'),
			'HR' => __('Croatia', 'wtotem'),
			'HT' => __('Haiti', 'wtotem'),
			'HU' => __('Hungary', 'wtotem'),
			'IC' => __('Canary Islands', 'wtotem'),
			'ID' => __('Indonesia', 'wtotem'),
			'IE' => __('Ireland', 'wtotem'),
			'IL' => __('Israel', 'wtotem'),
			'IM' => __('Isle of Man', 'wtotem'),
			'IN' => __('India', 'wtotem'),
			'IO' => __('British Indian Ocean Territory', 'wtotem'),
			'IQ' => __('Iraq', 'wtotem'),
			'IR' => __('Iran', 'wtotem'),
			'IS' => __('Iceland', 'wtotem'),
			'IT' => __('Italy', 'wtotem'),
			'JE' => __('Jersey', 'wtotem'),
			'JM' => __('Jamaica', 'wtotem'),
			'JO' => __('Jordan', 'wtotem'),
			'JP' => __('Japan', 'wtotem'),
			'KE' => __('Kenya', 'wtotem'),
			'KG' => __('Kyrgyzstan', 'wtotem'),
			'KH' => __('Cambodia', 'wtotem'),
			'KI' => __('Kiribati', 'wtotem'),
			'KM' => __('Comoros', 'wtotem'),
			'KN' => __('St. Kitts & Nevis', 'wtotem'),
			'KP' => __('North Korea', 'wtotem'),
			'KR' => __('South Korea', 'wtotem'),
			'KW' => __('Kuwait', 'wtotem'),
			'KY' => __('Cayman Islands', 'wtotem'),
			'KZ' => __('Kazakhstan', 'wtotem'),
			'LA' => __('Laos', 'wtotem'),
			'LB' => __('Lebanon', 'wtotem'),
			'LC' => __('St. Lucia', 'wtotem'),
			'LI' => __('Liechtenstein', 'wtotem'),
			'LK' => __('Sri Lanka', 'wtotem'),
			'LR' => __('Liberia', 'wtotem'),
			'LS' => __('Lesotho', 'wtotem'),
			'LT' => __('Lithuania', 'wtotem'),
			'LU' => __('Luxembourg', 'wtotem'),
			'LV' => __('Latvia', 'wtotem'),
			'LY' => __('Libya', 'wtotem'),
			'MA' => __('Morocco', 'wtotem'),
			'MC' => __('Monaco', 'wtotem'),
			'MD' => __('Moldova', 'wtotem'),
			'ME' => __('Montenegro', 'wtotem'),
			'MF' => __('St. Martin', 'wtotem'),
			'MG' => __('Madagascar', 'wtotem'),
			'MH' => __('Marshall Islands', 'wtotem'),
			'MK' => __('North Macedonia', 'wtotem'),
			'ML' => __('Mali', 'wtotem'),
			'MM' => __('Myanmar (Burma)', 'wtotem'),
			'MN' => __('Mongolia', 'wtotem'),
			'MO' => __('Macao SAR China', 'wtotem'),
			'MP' => __('Northern Mariana Islands', 'wtotem'),
			'MQ' => __('Martinique', 'wtotem'),
			'MR' => __('Mauritania', 'wtotem'),
			'MS' => __('Montserrat', 'wtotem'),
			'MT' => __('Malta', 'wtotem'),
			'MU' => __('Mauritius', 'wtotem'),
			'MV' => __('Maldives', 'wtotem'),
			'MW' => __('Malawi', 'wtotem'),
			'MX' => __('Mexico', 'wtotem'),
			'MY' => __('Malaysia', 'wtotem'),
			'MZ' => __('Mozambique', 'wtotem'),
			'NA' => __('Namibia', 'wtotem'),
			'NC' => __('New Caledonia', 'wtotem'),
			'NE' => __('Niger', 'wtotem'),
			'NF' => __('Norfolk Island', 'wtotem'),
			'NG' => __('Nigeria', 'wtotem'),
			'NI' => __('Nicaragua', 'wtotem'),
			'NL' => __('Netherlands', 'wtotem'),
			'NO' => __('Norway', 'wtotem'),
			'NP' => __('Nepal', 'wtotem'),
			'NR' => __('Nauru', 'wtotem'),
			'NU' => __('Niue', 'wtotem'),
			'NZ' => __('New Zealand', 'wtotem'),
			'OM' => __('Oman', 'wtotem'),
			'PA' => __('Panama', 'wtotem'),
			'PE' => __('Peru', 'wtotem'),
			'PF' => __('French Polynesia', 'wtotem'),
			'PG' => __('Papua New Guinea', 'wtotem'),
			'PH' => __('Philippines', 'wtotem'),
			'PK' => __('Pakistan', 'wtotem'),
			'PL' => __('Poland', 'wtotem'),
			'PM' => __('St. Pierre & Miquelon', 'wtotem'),
			'PN' => __('Pitcairn Islands', 'wtotem'),
			'PR' => __('Puerto Rico', 'wtotem'),
			'PS' => __('Palestinian Territories', 'wtotem'),
			'PT' => __('Portugal', 'wtotem'),
			'PW' => __('Palau', 'wtotem'),
			'PY' => __('Paraguay', 'wtotem'),
			'QA' => __('Qatar', 'wtotem'),
			'QO' => __('Outlying Oceania', 'wtotem'),
			'RE' => __('Réunion', 'wtotem'),
			'RO' => __('Romania', 'wtotem'),
			'RS' => __('Serbia', 'wtotem'),
			'RU' => __('Russia', 'wtotem'),
			'RW' => __('Rwanda', 'wtotem'),
			'SA' => __('Saudi Arabia', 'wtotem'),
			'SB' => __('Solomon Islands', 'wtotem'),
			'SC' => __('Seychelles', 'wtotem'),
			'SD' => __('Sudan', 'wtotem'),
			'SE' => __('Sweden', 'wtotem'),
			'SG' => __('Singapore', 'wtotem'),
			'SH' => __('St. Helena', 'wtotem'),
			'SI' => __('Slovenia', 'wtotem'),
			'SJ' => __('Svalbard & Jan Mayen', 'wtotem'),
			'SK' => __('Slovakia', 'wtotem'),
			'SL' => __('Sierra Leone', 'wtotem'),
			'SM' => __('San Marino', 'wtotem'),
			'SN' => __('Senegal', 'wtotem'),
			'SO' => __('Somalia', 'wtotem'),
			'SR' => __('Suriname', 'wtotem'),
			'SS' => __('South Sudan', 'wtotem'),
			'ST' => __('São Tomé & Príncipe', 'wtotem'),
			'SV' => __('El Salvador', 'wtotem'),
			'SX' => __('Sint Maarten', 'wtotem'),
			'SY' => __('Syria', 'wtotem'),
			'SZ' => __('Eswatini', 'wtotem'),
			'TA' => __('Tristan da Cunha', 'wtotem'),
			'TC' => __('Turks & Caicos Islands', 'wtotem'),
			'TD' => __('Chad', 'wtotem'),
			'TF' => __('French Southern Territories', 'wtotem'),
			'TG' => __('Togo', 'wtotem'),
			'TH' => __('Thailand', 'wtotem'),
			'TJ' => __('Tajikistan', 'wtotem'),
			'TK' => __('Tokelau', 'wtotem'),
			'TL' => __('Timor-Leste', 'wtotem'),
			'TM' => __('Turkmenistan', 'wtotem'),
			'TN' => __('Tunisia', 'wtotem'),
			'TO' => __('Tonga', 'wtotem'),
			'TR' => __('Turkey', 'wtotem'),
			'TT' => __('Trinidad & Tobago', 'wtotem'),
			'TV' => __('Tuvalu', 'wtotem'),
			'TW' => __('Taiwan', 'wtotem'),
			'TZ' => __('Tanzania', 'wtotem'),
			'UA' => __('Ukraine', 'wtotem'),
			'UG' => __('Uganda', 'wtotem'),
			'UM' => __('U.S. Outlying Islands', 'wtotem'),
			'US' => __('United States', 'wtotem'),
			'UY' => __('Uruguay', 'wtotem'),
			'UZ' => __('Uzbekistan', 'wtotem'),
			'VA' => __('Vatican City', 'wtotem'),
			'VC' => __('St. Vincent & Grenadines', 'wtotem'),
			'VE' => __('Venezuela', 'wtotem'),
			'VG' => __('British Virgin Islands', 'wtotem'),
			'VI' => __('U.S. Virgin Islands', 'wtotem'),
			'VN' => __('Vietnam', 'wtotem'),
			'VU' => __('Vanuatu', 'wtotem'),
			'WF' => __('Wallis & Futuna', 'wtotem'),
			'WS' => __('Samoa', 'wtotem'),
			'XK' => __('Kosovo', 'wtotem'),
			'YE' => __('Yemen', 'wtotem'),
			'YT' => __('Mayotte', 'wtotem'),
			'ZA' => __('South Africa', 'wtotem'),
			'ZM' => __('Zambia', 'wtotem'),
			'ZW' => __('Zimbabwe', 'wtotem'),
		];

		// Sort the list.
		natcasesort($countries);

		return $countries;
	}

	/**
	 * Get an array of country code => country name pairs, altered by alter hooks.
	 *
	 * @return array
	 *   An array of country code => country name pairs.
	 *
	 */
	public function getList() {
		// Populate the country list if it is not already populated.
		if (!isset($this->countries)) {
			$this->countries = static::getStandardList();
		}

		return $this->countries;
	}

}