<?php
/**
 * ISO 4217 currency data.
 *
 * @package Rentbaik
 */

namespace Rentbaik\Support;

defined( 'ABSPATH' ) || exit;

/**
 * Currency names, symbols and minor-unit decimals.
 */
final class Currencies {

	/**
	 * All supported currencies.
	 *
	 * @return array<string, array{name: string, symbol: string, decimals: int}>
	 */
	public static function all(): array {
		$list = array(
			'AED' => array( __( 'UAE dirham', 'rentbaik' ), 'د.إ', 2 ),
			'AUD' => array( __( 'Australian dollar', 'rentbaik' ), 'A$', 2 ),
			'BRL' => array( __( 'Brazilian real', 'rentbaik' ), 'R$', 2 ),
			'CAD' => array( __( 'Canadian dollar', 'rentbaik' ), 'C$', 2 ),
			'CHF' => array( __( 'Swiss franc', 'rentbaik' ), 'CHF', 2 ),
			'CNY' => array( __( 'Chinese yuan', 'rentbaik' ), '¥', 2 ),
			'CZK' => array( __( 'Czech koruna', 'rentbaik' ), 'Kč', 2 ),
			'DKK' => array( __( 'Danish krone', 'rentbaik' ), 'kr', 2 ),
			'EGP' => array( __( 'Egyptian pound', 'rentbaik' ), 'E£', 2 ),
			'EUR' => array( __( 'Euro', 'rentbaik' ), '€', 2 ),
			'GBP' => array( __( 'Pound sterling', 'rentbaik' ), '£', 2 ),
			'HKD' => array( __( 'Hong Kong dollar', 'rentbaik' ), 'HK$', 2 ),
			'HUF' => array( __( 'Hungarian forint', 'rentbaik' ), 'Ft', 2 ),
			'IDR' => array( __( 'Indonesian rupiah', 'rentbaik' ), 'Rp', 0 ),
			'ILS' => array( __( 'Israeli new shekel', 'rentbaik' ), '₪', 2 ),
			'INR' => array( __( 'Indian rupee', 'rentbaik' ), '₹', 2 ),
			'JPY' => array( __( 'Japanese yen', 'rentbaik' ), '¥', 0 ),
			'KES' => array( __( 'Kenyan shilling', 'rentbaik' ), 'KSh', 2 ),
			'KHR' => array( __( 'Cambodian riel', 'rentbaik' ), '៛', 0 ),
			'KRW' => array( __( 'South Korean won', 'rentbaik' ), '₩', 0 ),
			'LAK' => array( __( 'Lao kip', 'rentbaik' ), '₭', 0 ),
			'LKR' => array( __( 'Sri Lankan rupee', 'rentbaik' ), 'Rs', 2 ),
			'MAD' => array( __( 'Moroccan dirham', 'rentbaik' ), 'MAD', 2 ),
			'MXN' => array( __( 'Mexican peso', 'rentbaik' ), 'MX$', 2 ),
			'MYR' => array( __( 'Malaysian ringgit', 'rentbaik' ), 'RM', 2 ),
			'NGN' => array( __( 'Nigerian naira', 'rentbaik' ), '₦', 2 ),
			'NOK' => array( __( 'Norwegian krone', 'rentbaik' ), 'kr', 2 ),
			'NZD' => array( __( 'New Zealand dollar', 'rentbaik' ), 'NZ$', 2 ),
			'PHP' => array( __( 'Philippine peso', 'rentbaik' ), '₱', 2 ),
			'PKR' => array( __( 'Pakistani rupee', 'rentbaik' ), 'Rs', 2 ),
			'PLN' => array( __( 'Polish złoty', 'rentbaik' ), 'zł', 2 ),
			'RON' => array( __( 'Romanian leu', 'rentbaik' ), 'lei', 2 ),
			'SAR' => array( __( 'Saudi riyal', 'rentbaik' ), 'SAR', 2 ),
			'SEK' => array( __( 'Swedish krona', 'rentbaik' ), 'kr', 2 ),
			'SGD' => array( __( 'Singapore dollar', 'rentbaik' ), 'S$', 2 ),
			'THB' => array( __( 'Thai baht', 'rentbaik' ), '฿', 2 ),
			'TRY' => array( __( 'Turkish lira', 'rentbaik' ), '₺', 2 ),
			'TWD' => array( __( 'New Taiwan dollar', 'rentbaik' ), 'NT$', 2 ),
			'USD' => array( __( 'US dollar', 'rentbaik' ), '$', 2 ),
			'VND' => array( __( 'Vietnamese đồng', 'rentbaik' ), '₫', 0 ),
			'ZAR' => array( __( 'South African rand', 'rentbaik' ), 'R', 2 ),
		);

		$currencies = array();
		foreach ( $list as $code => $data ) {
			$currencies[ $code ] = array(
				'name'     => $data[0],
				'symbol'   => $data[1],
				'decimals' => $data[2],
			);
		}

		/**
		 * Filter the list of currencies available in Rentbaik.
		 *
		 * @param array $currencies Code => name, symbol, decimals.
		 */
		return (array) apply_filters( 'rentbaik_currencies', $currencies );
	}

	/**
	 * Data for one currency, falling back to USD.
	 *
	 * @param string $code ISO 4217 code.
	 * @return array{name: string, symbol: string, decimals: int}
	 */
	public static function get( string $code ): array {
		$all = self::all();
		return $all[ strtoupper( $code ) ] ?? $all['USD'];
	}

	/**
	 * Whether a currency code is supported.
	 *
	 * @param string $code ISO 4217 code.
	 * @return bool
	 */
	public static function exists( string $code ): bool {
		return array_key_exists( strtoupper( $code ), self::all() );
	}
}