export interface CountryData {
	id: string;
	twoLetters: string;
	text: string;
};

export default class CountryUtilsBase {
	static getCountryCodeArr(langCode: string): CountryData[] {
		let localizedCountryList: CountryData[] = [];
		let countryNamesLocalizer: any;

		try {
			countryNamesLocalizer = new (Intl as any).DisplayNames([langCode], { type: 'region' });
		} catch (error) {
			countryNamesLocalizer = null;
		}

		for (const item of CountryUtilsBase.buildBasicCountryCodeArr()) {
			let countryName: string = null;
			if (countryNamesLocalizer != null) {
				try {
					countryName = countryNamesLocalizer.of(item[1]);
				} catch (error) {
					countryName = null;
				}
			}

			if (countryName == null || countryName.length == 0) {
				countryName = item[2];
			}

			if (item[1] == 'US') {
				countryName += ' (USA)';
			}

			localizedCountryList.push({
				id: item[0],
				twoLetters: item[1].toLowerCase(),
				text: countryName,
			});
		}

		try {
			const collator = new Intl.Collator(langCode, { numeric: true, sensitivity: 'base' });
			localizedCountryList = [...localizedCountryList].sort((a, b) => collator.compare(a.text, b.text));
		} catch (error) {
			localizedCountryList = [...localizedCountryList].sort((a, b) => a.text.localeCompare(b.text));
		}

		return localizedCountryList;
	}

	static buildBasicCountryCodeArr(): Array<Array<string>> {
		return [
			[
				'AFG',
				'AF',
				'Afghanistan',
			],
			[
				'ALA',
				'AX',
				'Åland Islands',
			],
			[
				'ALB',
				'AL',
				'Albania',
			],
			[
				'DZA',
				'DZ',
				'Algeria',
			],
			[
				'ASM',
				'AS',
				'American Samoa',
			],
			[
				'AND',
				'AD',
				'Andorra',
			],
			[
				'AGO',
				'AO',
				'Angola',
			],
			[
				'AIA',
				'AI',
				'Anguilla',
			],
			[
				'ATA',
				'AQ',
				'Antarctica',
			],
			[
				'ATG',
				'AG',
				'Antigua and Barbuda',
			],
			[
				'ARG',
				'AR',
				'Argentina',
			],
			[
				'ARM',
				'AM',
				'Armenia',
			],
			[
				'ABW',
				'AW',
				'Aruba',
			],
			[
				'AUS',
				'AU',
				'Australia',
			],
			[
				'AUT',
				'AT',
				'Austria',
			],
			[
				'AZE',
				'AZ',
				'Azerbaijan',
			],
			[
				'BHS',
				'BS',
				'Bahamas',
			],
			[
				'BHR',
				'BH',
				'Bahrain',
			],
			[
				'BGD',
				'BD',
				'Bangladesh',
			],
			[
				'BRB',
				'BB',
				'Barbados',
			],
			[
				'BLR',
				'BY',
				'Belarus',
			],
			[
				'BEL',
				'BE',
				'Belgium',
			],
			[
				'BLZ',
				'BZ',
				'Belize',
			],
			[
				'BEN',
				'BJ',
				'Benin',
			],
			[
				'BMU',
				'BM',
				'Bermuda',
			],
			[
				'BTN',
				'BT',
				'Bhutan',
			],
			[
				'BOL',
				'BO',
				'Bolivia',
			],
			[
				'BQ',
				'BQ',
				'Bonaire',
			],
			[
				'BIH',
				'BA',
				'Bosnia and Herzegovina',
			],
			[
				'BWA',
				'BW',
				'Botswana',
			],
			[
				'BVT',
				'BV',
				'Bouvet Island',
			],
			[
				'BRA',
				'BR',
				'Brazil',
			],
			[
				'IOT',
				'IO',
				'British Indian Ocean Territory',
			],
			[
				'BRN',
				'BN',
				'Brunei Darussalam',
			],
			[
				'BGR',
				'BG',
				'Bulgaria',
			],
			[
				'BFA',
				'BF',
				'Burkina Faso',
			],
			[
				'BDI',
				'BI',
				'Burundi',
			],
			[
				'KHM',
				'KH',
				'Cambodia',
			],
			[
				'CMR',
				'CM',
				'Cameroon',
			],
			[
				'CAN',
				'CA',
				'Canada',
			],
			[
				'CPV',
				'CV',
				'Cape Verde',
			],
			[
				'CYM',
				'KY',
				'Cayman Islands',
			],
			[
				'CAF',
				'CF',
				'Central African Republic',
			],
			[
				'TCD',
				'TD',
				'Chad',
			],
			[
				'CHL',
				'CL',
				'Chile',
			],
			[
				'CHN',
				'CN',
				'China',
			],
			[
				'CXR',
				'CX',
				'Christmas Island',
			],
			[
				'CCK',
				'CC',
				'Cocos (Keeling) Islands',
			],
			[
				'COL',
				'CO',
				'Colombia',
			],
			[
				'COM',
				'KM',
				'Comoros',
			],
			[
				'CD',
				'CD',
				'Congo',
			],
			[
				'COG',
				'CG',
				'Congo',
			],
			[
				'COK',
				'CK',
				'Cook Islands',
			],
			[
				'CRI',
				'CR',
				'Costa Rica',
			],
			[
				'HRV',
				'HR',
				'Croatia',
			],
			[
				'CUB',
				'CU',
				'Cuba',
			],
			[
				'CUW',
				'CW',
				'Curaçao',
			],
			[
				'CYP',
				'CY',
				'Cyprus',
			],
			[
				'CZE',
				'CZ',
				'Czech Republic',
			],
			[
				'DNK',
				'DK',
				'Denmark',
			],
			[
				'DJI',
				'DJ',
				'Djibouti',
			],
			[
				'DMA',
				'DM',
				'Dominica',
			],
			[
				'DOM',
				'DO',
				'Dominican Republic',
			],
			[
				'ECU',
				'EC',
				'Ecuador',
			],
			[
				'EGY',
				'EG',
				'Egypt',
			],
			[
				'SLV',
				'SV',
				'El Salvador',
			],
			[
				'GNQ',
				'GQ',
				'Equatorial Guinea',
			],
			[
				'ERI',
				'ER',
				'Eritrea',
			],
			[
				'EST',
				'EE',
				'Estonia',
			],
			[
				'ETH',
				'ET',
				'Ethiopia',
			],
			[
				'FLK',
				'FK',
				'Falkland Islands (Malvinas)',
			],
			[
				'FRO',
				'FO',
				'Faroe Islands',
			],
			[
				'FJI',
				'FJ',
				'Fiji',
			],
			[
				'FIN',
				'FI',
				'Finland',
			],
			[
				'FRA',
				'FR',
				'France',
			],
			[
				'GUF',
				'GF',
				'French Guiana',
			],
			[
				'PYF',
				'PF',
				'French Polynesia',
			],
			[
				'ATF',
				'TF',
				'French Southern Territories',
			],
			[
				'GAB',
				'GA',
				'Gabon',
			],
			[
				'GMB',
				'GM',
				'Gambia',
			],
			[
				'GEO',
				'GE',
				'Georgia',
			],
			[
				'DEU',
				'DE',
				'Germany',
			],
			[
				'GHA',
				'GH',
				'Ghana',
			],
			[
				'GIB',
				'GI',
				'Gibraltar',
			],
			[
				'GRC',
				'GR',
				'Greece',
			],
			[
				'GRL',
				'GL',
				'Greenland',
			],
			[
				'GRD',
				'GD',
				'Grenada',
			],
			[
				'GLP',
				'GP',
				'Guadeloupe',
			],
			[
				'GUM',
				'GU',
				'Guam',
			],
			[
				'GTM',
				'GT',
				'Guatemala',
			],
			[
				'GGY',
				'GG',
				'Guernsey',
			],
			[
				'GNB',
				'GW',
				'Guinea-Bissau',
			],
			[
				'GIN',
				'GN',
				'Guinea',
			],
			[
				'GUY',
				'GY',
				'Guyana',
			],
			[
				'HTI',
				'HT',
				'Haiti',
			],
			[
				'HMD',
				'HM',
				'Heard Island and McDonald Islands',
			],
			[
				'VAT',
				'VA',
				'Holy See (Vatican City State)',
			],
			[
				'HND',
				'HN',
				'Honduras',
			],
			[
				'HKG',
				'HK',
				'Hong Kong',
			],
			[
				'HUN',
				'HU',
				'Hungary',
			],
			[
				'ISL',
				'IS',
				'Iceland',
			],
			[
				'IND',
				'IN',
				'India',
			],
			[
				'IDN',
				'ID',
				'Indonesia',
			],
			[
				'IR',
				'IR',
				'Iran',
			],
			[
				'IRQ',
				'IQ',
				'Iraq',
			],
			[
				'IRL',
				'IE',
				'Ireland',
			],
			[
				'IMN',
				'IM',
				'Isle of Man',
			],
			[
				'ISR',
				'IL',
				'Israel',
			],
			[
				'ITA',
				'IT',
				'Italy',
			],
			[
				'CIV',
				'CI',
				'Ivory Coast',
			],
			[
				'JAM',
				'JM',
				'Jamaica',
			],
			[
				'JPN',
				'JP',
				'Japan',
			],
			[
				'JEY',
				'JE',
				'Jersey',
			],
			[
				'JOR',
				'JO',
				'Jordan',
			],
			[
				'KAZ',
				'KZ',
				'Kazakhstan',
			],
			[
				'KEN',
				'KE',
				'Kenya',
			],
			[
				'KIR',
				'KI',
				'Kiribati',
			],
			[
				'KP',
				'KP',
				'North Korea',
			],
			[
				'KOR',
				'KR',
				'South Korea',
			],
			[
				'XKX',
				'XK',
				'Kosovo',
			],
			[
				'KWT',
				'KW',
				'Kuwait',
			],
			[
				'KGZ',
				'KG',
				'Kyrgyzstan',
			],
			[
				'LAO',
				'LA',
				'Lao People\'s Democratic Republic',
			],
			[
				'LVA',
				'LV',
				'Latvia',
			],
			[
				'LBN',
				'LB',
				'Lebanon',
			],
			[
				'LSO',
				'LS',
				'Lesotho',
			],
			[
				'LBR',
				'LR',
				'Liberia',
			],
			[
				'LBY',
				'LY',
				'Libya',
			],
			[
				'LIE',
				'LI',
				'Liechtenstein',
			],
			[
				'LTU',
				'LT',
				'Lithuania',
			],
			[
				'LUX',
				'LU',
				'Luxembourg',
			],
			[
				'MAC',
				'MO',
				'Macao',
			],
			[
				'MK',
				'MK',
				'Macedonia',
			],
			[
				'MDG',
				'MG',
				'Madagascar',
			],
			[
				'MWI',
				'MW',
				'Malawi',
			],
			[
				'MYS',
				'MY',
				'Malaysia',
			],
			[
				'MDV',
				'MV',
				'Maldives',
			],
			[
				'MLI',
				'ML',
				'Mali',
			],
			[
				'MLT',
				'MT',
				'Malta',
			],
			[
				'MHL',
				'MH',
				'Marshall Islands',
			],
			[
				'MTQ',
				'MQ',
				'Martinique',
			],
			[
				'MRT',
				'MR',
				'Mauritania',
			],
			[
				'MUS',
				'MU',
				'Mauritius',
			],
			[
				'MYT',
				'YT',
				'Mayotte',
			],
			[
				'MEX',
				'MX',
				'Mexico',
			],
			[
				'FM',
				'FM',
				'Micronesia',
			],
			[
				'MD',
				'MD',
				'Moldova',
			],
			[
				'MCO',
				'MC',
				'Monaco',
			],
			[
				'MNG',
				'MN',
				'Mongolia',
			],
			[
				'MNE',
				'ME',
				'Montenegro',
			],
			[
				'MSR',
				'MS',
				'Montserrat',
			],
			[
				'MAR',
				'MA',
				'Morocco',
			],
			[
				'MOZ',
				'MZ',
				'Mozambique',
			],
			[
				'MMR',
				'MM',
				'Myanmar',
			],
			[
				'NAM',
				'NA',
				'Namibia',
			],
			[
				'NRU',
				'NR',
				'Nauru',
			],
			[
				'NPL',
				'NP',
				'Nepal',
			],
			[
				'ANT',
				'AN',
				'Netherlands Antilles',
			],
			[
				'NLD',
				'NL',
				'Netherlands',
			],
			[
				'NCL',
				'NC',
				'New Caledonia',
			],
			[
				'NZL',
				'NZ',
				'New Zealand',
			],
			[
				'NIC',
				'NI',
				'Nicaragua',
			],
			[
				'NER',
				'NE',
				'Niger',
			],
			[
				'NGA',
				'NG',
				'Nigeria',
			],
			[
				'NIU',
				'NU',
				'Niue',
			],
			[
				'NFK',
				'NF',
				'Norfolk Island',
			],
			[
				'MNP',
				'MP',
				'Northern Mariana Islands',
			],
			[
				'NOR',
				'NO',
				'Norway',
			],
			[
				'OMN',
				'OM',
				'Oman',
			],
			[
				'PAK',
				'PK',
				'Pakistan',
			],
			[
				'PLW',
				'PW',
				'Palau',
			],
			[
				'PS',
				'PS',
				'Palestinian Territory',
			],
			[
				'PAN',
				'PA',
				'Panama',
			],
			[
				'PNG',
				'PG',
				'Papua New Guinea',
			],
			[
				'PRY',
				'PY',
				'Paraguay',
			],
			[
				'PER',
				'PE',
				'Peru',
			],
			[
				'PHL',
				'PH',
				'Philippines',
			],
			[
				'PCN',
				'PN',
				'Pitcairn',
			],
			[
				'POL',
				'PL',
				'Poland',
			],
			[
				'PRT',
				'PT',
				'Portugal',
			],
			[
				'PRI',
				'PR',
				'Puerto Rico',
			],
			[
				'QAT',
				'QA',
				'Qatar',
			],
			[
				'REU',
				'RE',
				'Réunion',
			],
			[
				'ROU',
				'RO',
				'Romania',
			],
			[
				'RUS',
				'RU',
				'Russian Federation',
			],
			[
				'RWA',
				'RW',
				'Rwanda',
			],
			[
				'BLM',
				'BL',
				'Saint Barthélemy',
			],
			[
				'SH',
				'SH',
				'Saint Helena',
			],
			[
				'KNA',
				'KN',
				'Saint Kitts and Nevis',
			],
			[
				'LCA',
				'LC',
				'Saint Lucia',
			],
			[
				'MAF',
				'MF',
				'Saint Martin (French part)',
			],
			[
				'SPM',
				'PM',
				'Saint Pierre and Miquelon',
			],
			[
				'VCT',
				'VC',
				'Saint Vincent and the Grenadines',
			],
			[
				'WSM',
				'WS',
				'Samoa',
			],
			[
				'SMR',
				'SM',
				'San Marino',
			],
			[
				'STP',
				'ST',
				'Sao Tome and Principe',
			],
			[
				'SAU',
				'SA',
				'Saudi Arabia',
			],
			[
				'SEN',
				'SN',
				'Senegal',
			],
			[
				'SRB',
				'RS',
				'Serbia',
			],
			[
				'SYC',
				'SC',
				'Seychelles',
			],
			[
				'SLE',
				'SL',
				'Sierra Leone',
			],
			[
				'SGP',
				'SG',
				'Singapore',
			],
			[
				'SXM',
				'SX',
				'Sint Maarten (Dutch part)',
			],
			[
				'SVK',
				'SK',
				'Slovakia',
			],
			[
				'SVN',
				'SI',
				'Slovenia',
			],
			[
				'SLB',
				'SB',
				'Solomon Islands',
			],
			[
				'SOM',
				'SO',
				'Somalia',
			],
			[
				'ZAF',
				'ZA',
				'South Africa',
			],
			[
				'SGS',
				'GS',
				'South Georgia and the South Sandwich Islands',
			],
			[
				'SSD',
				'SS',
				'South Sudan',
			],
			[
				'ESP',
				'ES',
				'Spain',
			],
			[
				'LKA',
				'LK',
				'Sri Lanka',
			],
			[
				'SDN',
				'SD',
				'Sudan',
			],
			[
				'SUR',
				'SR',
				'Suriname',
			],
			[
				'SJM',
				'SJ',
				'Svalbard and Jan Mayen',
			],
			[
				'SWZ',
				'SZ',
				'Swaziland',
			],
			[
				'SWE',
				'SE',
				'Sweden',
			],
			[
				'CHE',
				'CH',
				'Switzerland',
			],
			[
				'SYR',
				'SY',
				'Syrian Arab Republic',
			],
			[
				'TWN',
				'TW',
				'Taiwan',
			],
			[
				'TJK',
				'TJ',
				'Tajikistan',
			],
			[
				'TZ',
				'TZ',
				'Tanzania',
			],
			[
				'THA',
				'TH',
				'Thailand',
			],
			[
				'TLS',
				'TL',
				'Timor-Leste',
			],
			[
				'TGO',
				'TG',
				'Togo',
			],
			[
				'TKL',
				'TK',
				'Tokelau',
			],
			[
				'TON',
				'TO',
				'Tonga',
			],
			[
				'TTO',
				'TT',
				'Trinidad and Tobago',
			],
			[
				'TUN',
				'TN',
				'Tunisia',
			],
			[
				'TUR',
				'TR',
				'Turkey',
			],
			[
				'TKM',
				'TM',
				'Turkmenistan',
			],
			[
				'TCA',
				'TC',
				'Turks and Caicos Islands',
			],
			[
				'TUV',
				'TV',
				'Tuvalu',
			],
			[
				'UGA',
				'UG',
				'Uganda',
			],
			[
				'UKR',
				'UA',
				'Ukraine',
			],
			[
				'ARE',
				'AE',
				'United Arab Emirates',
			],
			[
				'GBR',
				'GB',
				'United Kingdom',
			],
			[
				'UMI',
				'UM',
				'United States Minor Outlying Islands',
			],
			[
				'USA',
				'US',
				'United States',
			],
			[
				'URY',
				'UY',
				'Uruguay',
			],
			[
				'UZB',
				'UZ',
				'Uzbekistan',
			],
			[
				'VUT',
				'VU',
				'Vanuatu',
			],
			[
				'VEN',
				'VE',
				'Venezuela',
			],
			[
				'VNM',
				'VN',
				'Vietnam',
			],
			[
				'VG',
				'VG',
				'Virgin Islands',
			],
			[
				'VI',
				'VI',
				'Virgin Islands',
			],
			[
				'WLF',
				'WF',
				'Wallis and Futuna',
			],
			[
				'ESH',
				'EH',
				'Western Sahara',
			],
			[
				'YEM',
				'YE',
				'Yemen',
			],
			[
				'ZMB',
				'ZM',
				'Zambia',
			],
			[
				'ZWE',
				'ZW',
				'Zimbabwe',
			],
		];
	}

	static getByThreeLetterCode(threeLetterCode: string, langCode: string): CountryData {
		if (threeLetterCode == null) {
			return null;
		} else {
			threeLetterCode = threeLetterCode.toUpperCase();
		}

		return CountryUtilsBase.getCountryCodeArr(langCode).find(p => p.id == threeLetterCode);
	}

	static getByTwoLetterCode(twoLetterCode: string, langCode: string): CountryData {
		if (twoLetterCode == null) {
			return null;
		} else {
			twoLetterCode = twoLetterCode.toLowerCase();
		}

		return CountryUtilsBase.getCountryCodeArr(langCode).find(p => p.twoLetters == twoLetterCode);
	}

	static getTwoLetterCodeFromThreeLetterCode(threeLetterCode: string, langCode: string): string {
		return CountryUtilsBase.getByThreeLetterCode(threeLetterCode, langCode)?.twoLetters;
	}

	static getThreeLetterCodeFromTwoLetterCode(twoLetterCode: string, langCode: string): string {
		return CountryUtilsBase.getByTwoLetterCode(twoLetterCode, langCode)?.id;
	}
}