<?php
/**
 * Supported Leanmerce Commerce Compliance languages.
 *
 * @package Leanmerce\CommerceCompliance
 */

namespace Leanmerce\CommerceCompliance\Application\Setup;

if ( ! defined( 'ABSPATH' ) ) {
	exit;
}

final class LanguageCatalog {
	public const BOSNIAN  = 'bs';
	public const CROATIAN = 'hr';
	public const SERBIAN  = 'sr';
	public const ENGLISH  = 'en';

	/**
	 * @return array<string,string>
	 */
	public static function supported(): array {
		return array(
			self::BOSNIAN  => __( 'Bosnian', 'leanmerce-commerce-assistant' ),
			self::CROATIAN => __( 'Croatian', 'leanmerce-commerce-assistant' ),
			self::SERBIAN  => __( 'Serbian', 'leanmerce-commerce-assistant' ),
			self::ENGLISH  => __( 'English', 'leanmerce-commerce-assistant' ),
		);
	}

	/** @return array<int,string> */
	public static function supported_codes(): array {
		return array( self::BOSNIAN, self::CROATIAN, self::SERBIAN, self::ENGLISH );
	}

	public static function label( string $code, string $display_language = self::BOSNIAN ): string {
		unset( $display_language );
		$labels = array(
			self::BOSNIAN  => 'Bosanski',
			self::CROATIAN => 'Hrvatski',
			self::SERBIAN  => 'Srpski',
			self::ENGLISH  => 'English',
		);
		return $labels[ $code ] ?? $code;
	}

	public static function normalize_locale( string $locale, string $fallback = self::BOSNIAN ): string {
		$language = strtolower( substr( str_replace( '-', '_', $locale ), 0, 2 ) );

		return isset( self::supported()[ $language ] ) ? $language : $fallback;
	}

	public static function is_bih_language( string $language ): bool {
		return in_array( $language, array( self::BOSNIAN, self::CROATIAN, self::SERBIAN ), true );
	}

	private function __construct() {}
}