<?php
/**
 * GET /airanksuite/v1/system/status
 *
 * @package AiRankSuite
 */

declare(strict_types=1);

namespace AiRankSuite\Modules\Core\Rest;

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

use AiRankSuite\Kernel;
use AiRankSuite\Rest\RestController;
use WP_REST_Response;

final class StatusController extends RestController {

	public function register_routes(): void {
		register_rest_route(
			self::NAMESPACE,
			'/boot',
			array(
				'methods'             => 'GET',
				'callback'            => array( $this, 'boot' ),
				'permission_callback' => static fn(): bool => current_user_can( 'manage_options' ),
			)
		);
		register_rest_route(
			self::NAMESPACE,
			'/system/status',
			array(
				'methods'             => 'GET',
				'callback'            => array( $this, 'status' ),
				'permission_callback' => static fn(): bool => current_user_can( 'manage_options' ),
			)
		);
	}

	/**
	 * Everything the dashboard needs to draw, in one round trip.
	 *
	 * Opening the plugin fired four REST calls before first paint — score,
	 * KPIs, content coverage, setup state. Each one is its own HTTP round
	 * trip; on a 200 ms-latency host that is 200 ms saved three times over.
	 * The four routes stay untouched (deep links, recalc and other screens
	 * use them singly); this endpoint dispatches them internally, so there
	 * is exactly one implementation of each payload and nothing can drift.
	 */
	public function boot(): WP_REST_Response {
		$piece = static function ( string $route ) {
			$response = rest_do_request( new \WP_REST_Request( 'GET', '/airanksuite/v1' . $route ) );
			return $response->is_error() ? null : $response->get_data();
		};
		return new WP_REST_Response(
			array(
				'score'   => $piece( '/score' ),
				'kpis'    => $piece( '/dashboard/kpis' ),
				'content' => $piece( '/score/content' ),
				'setup'   => $piece( '/setup/status' ),
			)
		);
	}

	public function status(): WP_REST_Response {
		global $wp_version;

		return new WP_REST_Response(
			array(
				'plugin_version' => AIRANKSUITE_VERSION,
				'wp_version'     => $wp_version,
				'php_version'    => PHP_VERSION,
				'modules'        => Kernel::instance()->moduleIds(),
				'quarantined'    => array_keys( (array) get_option( 'airanksuite_quarantine', array() ) ),
				// Front-end callbacks that threw and were caught. Empty is the
				// only acceptable value on a healthy install.
				'hook_failures'  => \AiRankSuite\Support\Guard::failures(),
				'permalinks'     => (bool) get_option( 'permalink_structure' ),
				'multisite'      => is_multisite(),
			)
		);
	}
}