<?php
/**
 * Main plugin class
 *
 * @package TwoFactorExtended
 * @since 0.1.0
 */

// Prevent direct access.
if ( ! defined( 'ABSPATH' ) ) {
	exit;
}

/**
 * Class Two_Factor_Extended
 *
 * Main plugin class implementing singleton pattern.
 *
 * @since 0.1.0
 */
class Two_Factor_Extended {

	/**
	 * Plugin instance.
	 *
	 * @since 0.1.0
	 * @var Two_Factor_Extended|null
	 */
	private static $instance = null;

	/**
	 * Plugin version.
	 *
	 * @since 0.1.0
	 * @var string
	 */
	private string $version = '1.0.0';

	/**
	 * Plugin directory path.
	 *
	 * @since 0.1.0
	 * @var string
	 */
	private string $plugin_path;

	/**
	 * Plugin directory URL.
	 *
	 * @since 0.1.0
	 * @var string
	 */
	private string $plugin_url;

	/**
	 * Plugin basename.
	 *
	 * @since 0.1.0
	 * @var string
	 */
	private string $plugin_basename;

	/**
	 * Settings instance.
	 *
	 * @since 0.1.0
	 * @var Two_Factor_Extended_Settings|null
	 */
	private $settings = null;

	/**
	 * Enforcement instance.
	 *
	 * @since 0.1.0
	 * @var Two_Factor_Extended_Enforcement|null
	 */
	private $enforcement = null;

	/**
	 * Provider filter instance.
	 *
	 * @since 0.1.0
	 * @var Two_Factor_Extended_Provider_Filter|null
	 */
	private $provider_filter = null;

	/**
	 * Network settings instance.
	 *
	 * @since 0.1.0
	 * @var Two_Factor_Extended_Network_Settings|null
	 */
	private $network_settings = null;

	/**
	 * Audit log instance.
	 *
	 * @since 0.1.0
	 * @var Two_Factor_Extended_Audit_Log|null
	 */
	private $audit_log = null;

	/**
	 * Compliance report instance.
	 *
	 * @since 0.1.0
	 * @var Two_Factor_Extended_Compliance_Report|null
	 */
	private $compliance_report = null;

	/**
	 * Bulk actions instance.
	 *
	 * @since 0.1.0
	 * @var Two_Factor_Extended_Bulk_Actions|null
	 */
	private $bulk_actions = null;

	/**
	 * REST API instance.
	 *
	 * @since 0.1.0
	 * @var Two_Factor_Extended_REST_API|null
	 */
	private $rest_api = null;

	/**
	 * Get plugin instance (singleton).
	 *
	 * @since 0.1.0
	 *
	 * @return Two_Factor_Extended Plugin instance.
	 */
	public static function get_instance(): Two_Factor_Extended {
		if ( null === self::$instance ) {
			self::$instance = new self();
		}

		return self::$instance;
	}

	/**
	 * Constructor.
	 *
	 * Private to enforce singleton pattern.
	 *
	 * @since 0.1.0
	 */
	private function __construct() {
		$this->plugin_path     = plugin_dir_path( dirname( __FILE__ ) );
		$this->plugin_url      = plugin_dir_url( dirname( __FILE__ ) );
		$this->plugin_basename = plugin_basename( dirname( dirname( __FILE__ ) ) . '/two-factor-extended.php' );

		$this->init();
	}

	/**
	 * Initialize the plugin.
	 *
	 * @since 0.1.0
	 */
	private function init(): void {
		// Load dependencies.
		$this->load_dependencies();

		// Initialize components.
		$this->init_hooks();
	}

	/**
	 * Load plugin dependencies.
	 *
	 * @since 0.1.0
	 */
	private function load_dependencies(): void {
		require_once $this->plugin_path . 'includes/class-dependency-checker.php';
		require_once $this->plugin_path . 'includes/class-role-manager.php';
		require_once $this->plugin_path . 'includes/class-provider-detector.php';
		require_once $this->plugin_path . 'includes/class-enforcement.php';
		require_once $this->plugin_path . 'includes/class-provider-filter.php';
		require_once $this->plugin_path . 'includes/class-network-settings.php';
		require_once $this->plugin_path . 'includes/class-audit-log.php';
		require_once $this->plugin_path . 'includes/class-compliance-report.php';
		require_once $this->plugin_path . 'includes/class-bulk-actions.php';
		require_once $this->plugin_path . 'includes/class-rest-api.php';
		require_once $this->plugin_path . 'includes/class-settings.php';

		// Load CLI commands if WP-CLI is available.
		if ( defined( 'WP_CLI' ) && WP_CLI ) {
			require_once $this->plugin_path . 'includes/class-cli-commands.php';
		}
	}

	/**
	 * Initialize WordPress hooks.
	 *
	 * @since 0.1.0
	 */
	private function init_hooks(): void {
		// Plugin loaded hook.
		add_action( 'plugins_loaded', array( $this, 'on_plugins_loaded' ) );

		// Load text domain.
		add_action( 'init', array( $this, 'load_textdomain' ) );
	}

	/**
	 * Actions to run when all plugins are loaded.
	 *
	 * @since 0.1.0
	 */
	public function on_plugins_loaded(): void {
		// Check dependencies.
		if ( ! Two_Factor_Extended_Dependency_Checker::check_dependencies() ) {
			return;
		}

		// Initialize network settings (Multisite).
		$this->network_settings = new Two_Factor_Extended_Network_Settings();

		// Initialize audit log.
		$this->audit_log = new Two_Factor_Extended_Audit_Log();

		// Initialize compliance report.
		$this->compliance_report = new Two_Factor_Extended_Compliance_Report();

		// Initialize settings.
		$this->settings = new Two_Factor_Extended_Settings();

		// Initialize enforcement.
		$this->enforcement = new Two_Factor_Extended_Enforcement();

		// Initialize provider filter.
		$this->provider_filter = new Two_Factor_Extended_Provider_Filter();

		// Initialize bulk actions.
		$this->bulk_actions = new Two_Factor_Extended_Bulk_Actions();

		// Initialize REST API.
		$this->rest_api = new Two_Factor_Extended_REST_API();

		// Register WP-CLI commands if available.
		if ( defined( 'WP_CLI' ) && WP_CLI ) {
			WP_CLI::add_command( 'two-factor-extended', 'Two_Factor_Extended_CLI_Commands' );
		}

		// Plugin is ready to work.
		do_action( 'two_factor_extended_loaded' );
	}

	/**
	 * Get settings instance.
	 *
	 * @since 0.1.0
	 *
	 * @return Two_Factor_Extended_Settings Settings instance.
	 */
	public function get_settings(): Two_Factor_Extended_Settings {
		return $this->settings;
	}

	/**
	 * Get enforcement instance.
	 *
	 * @since 0.1.0
	 *
	 * @return Two_Factor_Extended_Enforcement Enforcement instance.
	 */
	public function get_enforcement(): Two_Factor_Extended_Enforcement {
		return $this->enforcement;
	}

	/**
	 * Get provider filter instance.
	 *
	 * @since 0.1.0
	 *
	 * @return Two_Factor_Extended_Provider_Filter Provider filter instance.
	 */
	public function get_provider_filter(): Two_Factor_Extended_Provider_Filter {
		return $this->provider_filter;
	}

	/**
	 * Get network settings instance.
	 *
	 * @since 0.1.0
	 *
	 * @return Two_Factor_Extended_Network_Settings Network settings instance.
	 */
	public function get_network_settings(): Two_Factor_Extended_Network_Settings {
		return $this->network_settings;
	}

	/**
	 * Get audit log instance.
	 *
	 * @since 0.1.0
	 *
	 * @return Two_Factor_Extended_Audit_Log Audit log instance.
	 */
	public function get_audit_log(): Two_Factor_Extended_Audit_Log {
		return $this->audit_log;
	}

	/**
	 * Get compliance report instance.
	 *
	 * @since 0.1.0
	 *
	 * @return Two_Factor_Extended_Compliance_Report Compliance report instance.
	 */
	public function get_compliance_report(): Two_Factor_Extended_Compliance_Report {
		return $this->compliance_report;
	}

	/**
	 * Get bulk actions instance.
	 *
	 * @since 0.1.0
	 *
	 * @return Two_Factor_Extended_Bulk_Actions Bulk actions instance.
	 */
	public function get_bulk_actions(): Two_Factor_Extended_Bulk_Actions {
		return $this->bulk_actions;
	}

	/**
	 * Get REST API instance.
	 *
	 * @since 0.1.0
	 *
	 * @return Two_Factor_Extended_REST_API REST API instance.
	 */
	public function get_rest_api(): Two_Factor_Extended_REST_API {
		return $this->rest_api;
	}

	/**
	 * Load plugin text domain.
	 *
	 * @since 0.1.0
	 */
	public function load_textdomain(): void {
		// phpcs:ignore PluginCheck.CodeAnalysis.DiscouragedFunctions.load_plugin_textdomainFound -- Needed for custom translation loading
		load_plugin_textdomain(
			'two-factor-extended',
			false,
			dirname( $this->plugin_basename ) . '/languages'
		);
	}

	/**
	 * Get plugin version.
	 *
	 * @since 0.1.0
	 *
	 * @return string Plugin version.
	 */
	public function get_version(): string {
		return $this->version;
	}

	/**
	 * Get plugin directory path.
	 *
	 * @since 0.1.0
	 *
	 * @return string Plugin directory path with trailing slash.
	 */
	public function get_plugin_path(): string {
		return $this->plugin_path;
	}

	/**
	 * Get plugin directory URL.
	 *
	 * @since 0.1.0
	 *
	 * @return string Plugin directory URL with trailing slash.
	 */
	public function get_plugin_url(): string {
		return $this->plugin_url;
	}

	/**
	 * Get plugin basename.
	 *
	 * @since 0.1.0
	 *
	 * @return string Plugin basename (e.g., 'two-factor-extended/two-factor-extended.php').
	 */
	public function get_plugin_basename(): string {
		return $this->plugin_basename;
	}

	/**
	 * Prevent cloning.
	 *
	 * @since 0.1.0
	 */
	private function __clone() {
	}

	/**
	 * Prevent unserialization.
	 *
	 * @since 0.1.0
	 */
	public function __wakeup() {
	}
}