<?php
namespace FPCA;

defined( 'ABSPATH' ) || exit;

/**
 * Main plugin class. Boots all modules.
 *
 * @package FPCA
 */
final class Plugin {

	private static ?Plugin $instance = null;

	private function __construct() {
		$this->load_dependencies();

		// Schema migrations load wp-admin/includes/upgrade.php, which pulls in
		// the whole admin bootstrap. Keep that off front-end, REST and cron
		// requests by deferring to admin_init.
		add_action( 'admin_init', [ Activator::class, 'maybe_upgrade' ] );

		$this->register_hooks();
	}

	public static function instance(): self {
		if ( null === self::$instance ) {
			self::$instance = new self();
		}
		return self::$instance;
	}

	private function load_dependencies(): void {
		require_once FPCA_PLUGIN_DIR . 'includes/class-activator.php';
		require_once FPCA_PLUGIN_DIR . 'includes/class-license.php';
		require_once FPCA_PLUGIN_DIR . 'includes/class-admin.php';
		require_once FPCA_PLUGIN_DIR . 'includes/class-post-tracker.php';
		require_once FPCA_PLUGIN_DIR . 'includes/class-freshness-scorer.php';
		require_once FPCA_PLUGIN_DIR . 'includes/class-gsc-connector.php';
		require_once FPCA_PLUGIN_DIR . 'includes/class-assignments.php';
		require_once FPCA_PLUGIN_DIR . 'includes/class-workflow.php';
		require_once FPCA_PLUGIN_DIR . 'includes/class-acf-detector.php';
		// Not a class file, so the autoloader cannot find it.
		require_once FPCA_PLUGIN_DIR . 'includes/view-helpers.php';
	}

	private function register_hooks(): void {
		License::register();
		ACF_Detector::register();
		( new Admin() )->register();
		( new Post_Tracker() )->register();
		( new Assignments() )->register();
		( new Freshness_Scorer() )->register();
		( new Workflow() )->register();
	}
}