<?php

declare(strict_types=1);

namespace FlexaLocal\Core;

use FlexaLocal\Admin\Assets;
use FlexaLocal\Admin\Exporter;
use FlexaLocal\Admin\Menu;
use FlexaLocal\Admin\MetaBoxes;
use FlexaLocal\Admin\ModulesPage;
use FlexaLocal\Blocks\BlockRegistry;
use FlexaLocal\Content\ContentRegistry;
use FlexaLocal\Coupons\CouponPage;
use FlexaLocal\Emails\Notifications;
use FlexaLocal\Events\EventRecorder;
use FlexaLocal\Forms\FrontendForm;
use FlexaLocal\Install\Activator;
use FlexaLocal\Install\Migrator;
use FlexaLocal\Leads\LeadNotifier;
use FlexaLocal\Rest\RegisterFacade;
use FlexaLocal\Services\ServiceEvents;
use FlexaLocal\Support\SingletonTrait;
use FlexaLocal\Team\TeamPage;
use FlexaLocal\Testimonials\TestimonialPage;

defined( 'ABSPATH' ) || exit;

/**
 * Runtime orchestrator. Booted once on `plugins_loaded`; wires the foundation
 * hooks that every later module hangs off of.
 */
final class Plugin {

	use SingletonTrait;

	public function boot(): void {
		// No load_plugin_textdomain(): WordPress loads the wp.org translations
		// for this slug by itself (4.6+), and languages/ ships only the .pot.
		add_action( 'init', [ ContentRegistry::instance(), 'register' ], 5 );
		add_action( 'init', [ BlockRegistry::instance(), 'register' ], 15 );
		add_action( 'init', [ $this, 'flush_rewrites' ], 19 );
		add_action( 'init', [ $this, 'announce_loaded' ], 20 );

		add_filter( 'block_categories_all', [ BlockRegistry::instance(), 'category' ] );
		add_action( 'admin_init', [ Migrator::class, 'maybe_upgrade' ] );
		add_action( 'rest_api_init', [ RegisterFacade::instance(), 'register_routes' ] );

		// Transaction layer: analytics recorder + service domain events.
		EventRecorder::instance()->register();
		ServiceEvents::instance()->register();

		// Lead capture. The form has to work with JavaScript switched off, so the
		// POST handler and the shortcode register on the front end too, not only
		// behind the admin guard below.
		( new FrontendForm() )->register();
		LeadNotifier::instance()->register();
		Notifications::instance()->register();
		Exporter::instance()->register();

		// What a review's, a team member's and a coupon's own page show.
		TestimonialPage::instance()->register();
		TeamPage::instance()->register();
		CouponPage::instance()->register();

		$this->boot_admin();
	}

	private function boot_admin(): void {
		if ( ! is_admin() ) {
			return;
		}

		add_action( 'admin_menu', [ Menu::instance(), 'register' ], 1 );
		add_filter( 'plugin_action_links_' . FXLC_BASENAME, [ Menu::instance(), 'settings_link' ] );
		ModulesPage::instance()->register();
		add_action( 'admin_enqueue_scripts', [ Assets::instance(), 'enqueue' ] );

		$meta = MetaBoxes::instance();
		add_action( 'add_meta_boxes', [ $meta, 'add_meta_boxes' ] );
		add_action( 'save_post', [ $meta, 'save' ], 10, 2 );
		add_action( 'admin_enqueue_scripts', [ $meta, 'enqueue_assets' ] );
	}

	/**
	 * Rebuild the permalink rules once, on the first request after activation.
	 *
	 * Flushing is expensive, so it happens here and nowhere else: by this
	 * priority the post types and taxonomies are registered, which is the whole
	 * reason it cannot be done inside the activation hook itself.
	 */
	public function flush_rewrites(): void {
		if ( ! get_option( Activator::FLUSH_FLAG ) ) {
			return;
		}

		delete_option( Activator::FLUSH_FLAG );
		flush_rewrite_rules();
	}

	/**
	 * Signal that Core has finished initializing. This is the entry point for
	 * addon registration (see docs/23-extensibility-contract): addons hook
	 * `fxlc_loaded`, then fire `fxlc_register_addon`. Runs at a late `init`
	 * priority so Core's own init work (textdomain, CPTs) is already in place.
	 */
	public function announce_loaded(): void {
		do_action( 'fxlc_loaded' );
	}
}