<?php

namespace WPContentSync\Url;

final class UrlMappingCollection {
	/**
	 * @var array<int, UrlMapping>
	 */
	private array $mappings;

	/**
	 * @param array<int, UrlMapping> $mappings URL mappings.
	 */
	public function __construct( array $mappings ) {
		foreach ( $mappings as $mapping ) {
			if ( ! $mapping instanceof UrlMapping ) {
				throw new \InvalidArgumentException( 'URL mapping collections only accept UrlMapping instances.' );
			}
		}

		$this->mappings = array_values( $mappings );

		usort(
			$this->mappings,
			static function ( UrlMapping $left, UrlMapping $right ): int {
				return strlen( $right->sourceUrl() ) <=> strlen( $left->sourceUrl() );
			}
		);
	}

	/**
	 * @return array<int, UrlMapping>
	 */
	public function all(): array {
		return $this->mappings;
	}
}