<?php
namespace SmoothBundle\Sandbox;
defined( 'ABSPATH' ) || exit;

/** Bundled PluginPeer catalogue; reading it never contacts an external service. */
final class Runtime_Versions {
    public static function newest( array $versions ): string {
        $sorted = $versions;
        usort( $sorted, 'version_compare' );
        return end( $sorted );
    }
    public static function get(): array {
        $data = json_decode( file_get_contents( __DIR__ . '/runtime-versions.json' ), true );
        if ( ! is_array( $data ) || ! self::valid( $data ) ) {
            // phpcs:ignore WordPress.Security.EscapeOutput.ExceptionNotEscaped -- Admin escapes the notice or returns the exception message through wp_send_json_error().
            throw new \RuntimeException( __( 'The bundled runtime catalogue is invalid. Reinstall Smooth Sandbox.', 'smooth-sandbox' ) );
        }
        return $data;
    }
    private static function valid( array $data ): bool {
        foreach ( [ 'wordpress', 'php' ] as $key ) {
            if ( empty( $data[ $key ] ) || ! is_array( $data[ $key ] ) || count( $data[ $key ] ) > 200 ) { return false; }
            foreach ( $data[ $key ] as $version ) { if ( ! is_string( $version ) || ! preg_match( '/^\d+\.\d+(\.\d+)?$/D', $version ) ) { return false; } }
        }
        return true;
    }
}