<?php
/**
 * Safety-net adapter: treats the export as a plain Vite/React or raw
 * static build with no vendor cleanup. Every unrecognized or future
 * builder's export falls through to this path rather than hard-failing.
 *
 * @package Esipher
 */

namespace Esipher\Adapters;

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

/**
 * Always matches; near-passthrough cleanup.
 */
class Adapter_Generic implements Source_Adapter {

	use Scans_Bundled_Js;

	/**
	 * {@inheritDoc}
	 *
	 * Always true — this is the guaranteed fallback and must be
	 * registered last if adapter priority ordering is ever introduced.
	 *
	 * @param string $dir Absolute path to the extracted export root.
	 *
	 * @return bool
	 */
	public function detect( $dir ) {
		return true;
	}

	/**
	 * {@inheritDoc}
	 *
	 * Strips only generic, universally-safe noise (HTML comments).
	 * Anything vendor-specific is deliberately left alone here — that's
	 * what a dedicated adapter is for.
	 *
	 * @param string $html Raw HTML markup.
	 *
	 * @return string
	 */
	public function clean_markup( $html ) {
		return preg_replace( '/<!--.*?-->/s', '', $html );
	}

	/**
	 * {@inheritDoc}
	 *
	 * Infers whatever it generically can from a package.json, if the
	 * export happens to include one, and flags a hardcoded `/api/...`
	 * backend dependency when a bundled JS file references one — no
	 * server-backed functionality (auth, a database, live data) survives
	 * conversion, whichever builder or backend produced it, so this is
	 * reported rather than silently dropped.
	 *
	 * @param string $dir Absolute path to the extracted export root.
	 *
	 * @return array<string,mixed>
	 */
	public function get_metadata( $dir ) {
		$metadata = array(
			'source'               => 'generic',
			'backend_api_detected' => $this->bundled_js_contains( $dir, '/api/' ),
		);

		$package_json_path = rtrim( $dir, '/' ) . '/package.json';

		if ( is_file( $package_json_path ) ) {
			// Local file within the already-extracted export, not a
			// remote fetch — wp_remote_get() doesn't apply here.
			$decoded = json_decode( (string) file_get_contents( $package_json_path ), true ); // phpcs:ignore WordPress.WP.AlternativeFunctions.file_get_contents_file_get_contents

			if ( is_array( $decoded ) ) {
				$metadata['package_name']    = isset( $decoded['name'] ) ? $decoded['name'] : null;
				$metadata['package_version'] = isset( $decoded['version'] ) ? $decoded['version'] : null;
			}
		}

		return $metadata;
	}
}