<?php
/**
 * Admin menu manager.
 *
 * @package AfriDirect_Payment
 */

// Exit if accessed directly.
if ( ! defined( 'ABSPATH' ) ) {
	exit;
}

/**
 * Admin menu manager class.
 */
class AfriDirect_Payment_Admin_Menu {

	/**
	 * Plugin instance.
	 *
	 * @var AfriDirect_Payment_Admin_Menu
	 */
	private static $instance = null;

	/**
	 * Menu slug.
	 *
	 * @var string
	 */
	private $menu_slug = 'afridirect-payment';

	/**
	 * Get plugin instance.
	 *
	 * @return AfriDirect_Payment_Admin_Menu
	 */
	public static function instance() {
		if ( is_null( self::$instance ) ) {
			self::$instance = new self();
		}
		return self::$instance;
	}

	/**
	 * Constructor.
	 */
	private function __construct() {
		$this->init_hooks();
	}

	/**
	 * Initialize hooks.
	 */
	private function init_hooks() {
		add_action( 'admin_menu', array( $this, 'create_main_menu' ), 5 ); // Priority 5 to run before other menus.
	}

	/**
	 * Create main admin menu.
	 */
	public function create_main_menu() {
		// Create top-level menu always.
		// The first submenu will be added by AfriDirect_Payment_Admin_Overview.
		add_menu_page(
			__( 'AfriDirect Payment', 'afridirect-payment' ),
			__( 'AfriDirect Payment', 'afridirect-payment' ),
			$this->get_capability(),
			$this->menu_slug,
			'', // Empty callback - Overview will handle it.
			'dashicons-money-alt',
			56
		);
	}

	/**
	 * Render dashboard page.
	 */
	public function render_dashboard() {
		if ( ! current_user_can( $this->get_capability() ) ) {
			wp_die( esc_html__( 'You do not have sufficient permissions to access this page.', 'afridirect-payment' ) );
		}

		// If WooCommerce is active, show WC dashboard, otherwise show standalone overview.
		if ( class_exists( 'WooCommerce' ) ) {
			// Check if Admin_Dashboard class exists and has render_dashboard method.
			if ( class_exists( 'AfriDirect_Payment_Admin_Dashboard' ) ) {
				$dashboard = AfriDirect_Payment_Admin_Dashboard::instance();
				if ( method_exists( $dashboard, 'render_dashboard' ) ) {
					$dashboard->render_dashboard();
					return;
				}
			}
		}
		
		// Standalone overview (fallback for both WC and non-WC).
		include AFRIDIRECT_PAYMENT_PLUGIN_DIR . 'admin/views/dashboard-standalone.php';
	}

	/**
	 * Get menu slug.
	 *
	 * @return string
	 */
	public function get_menu_slug() {
		return $this->menu_slug;
	}

	/**
	 * Get required capability.
	 *
	 * @return string
	 */
	public function get_capability() {
		if ( class_exists( 'WooCommerce' ) ) {
			return 'manage_woocommerce';
		}
		return 'manage_options';
	}
}