<?php
/**
 * @package AgentgateWebMCP
 */

namespace AgentgateWebMCP;

defined( 'ABSPATH' ) || exit;

final class Core {

	const TOOLS = [
		'wp/search-posts',
		'wp/get-post',
		'wp/get-categories',
	];

	private static ?self $me = null;
	public readonly Tool_Resolver $resolver;
	public readonly Endpoints $endpoints;
	public readonly Tools_Registry $tools;

	public static function boot(): self {
		return self::$me ??= new self();
	}

	private function __construct() {
		$this->tools     = new Tools_Registry();
		$this->resolver  = new Tool_Resolver();
		$this->endpoints = new Endpoints( $this->resolver );

		$this->attach_hooks();
	}

	private function attach_hooks(): void {
		$late_or_now = function ( string $action, callable $cb ) {
			did_action( $action ) ? $cb() : add_action( $action, $cb );
		};

		$late_or_now( 'wp_abilities_api_categories_init', [ $this->tools, 'setup_category' ] );
		$late_or_now( 'wp_abilities_api_init', [ $this->tools, 'setup_tools' ] );

		add_action( 'wp_enqueue_scripts', [ $this, 'load_bridge' ] );
		add_action( 'activate_plugin', [ $this->resolver, 'flush' ] );
		add_action( 'deactivate_plugin', [ $this->resolver, 'flush' ] );
	}

	public function load_bridge(): void {
		if ( ! is_ssl() || ! apply_filters( 'webmcp_load_bridge', true ) ) {
			return;
		}

		wp_enqueue_script( 'webmcp-bridge', WEBMCP_URL . 'webmcp.js', [], WEBMCP_VER, [ 'strategy' => 'defer' ] );

		$cfg = wp_json_encode( [
			'tools'   => rest_url( 'webmcp/v1/tools' ),
			'run'     => rest_url( 'webmcp/v1/execute/' ),
			'refresh' => rest_url( 'webmcp/v1/nonce' ),
			'token'   => wp_create_nonce( 'webmcp_run' ),
		] );

		wp_add_inline_script( 'webmcp-bridge', 'var webmcpConfig=' . $cfg . ';', 'before' );
	}
}