<?php
/**
 * Plugin Name: Accessibility Guard
 * Plugin URI:  https://github.com/aman-kh359/accessibility-guard
 * Description: WCAG 2.2 compliance scanner with auto-fixes and accessibility statement generation.
 * Version:     1.0.0
 * Requires at least: 6.0
 * Requires PHP: 7.4
 * Author:      Digiminati
 * Author URI:  https://github.com/aman-kh359
 * License:     GPL-2.0-or-later
 * License URI: https://www.gnu.org/licenses/gpl-2.0.html
 * Text Domain: accessibility-guard
 */

if ( ! defined( 'ABSPATH' ) ) {
    exit;
}

/**
 * Freemius SDK Integration.
 */
if ( ! function_exists( 'ag_fs' ) ) {
    /**
     * Create a helper function for easy SDK access.
     *
     * @return \Freemius
     */
    function ag_fs() {
        global $ag_fs;

        if ( ! isset( $ag_fs ) ) {
            // Include Freemius SDK.
            require_once dirname( __FILE__ ) . '/vendor/freemius/start.php';

            $ag_fs = fs_dynamic_init( array(
                'id'                  => '23407',
                'slug'                => 'accessibility-guard',
                'type'                => 'plugin',
                'public_key'          => 'pk_715012c3645fd8b406a8a92ef5730',
                'is_premium'          => false,
                'premium_suffix'      => 'Pro',
                'has_premium_version' => true,
                'has_addons'          => false,
                'has_paid_plans'      => true,
                'menu'                => array(
                    'slug'    => 'wpag-dashboard',
                    'support' => false,
                ),
            ) );
        }

        return $ag_fs;
    }

    // Init Freemius.
    ag_fs();

    // Signal that SDK was initiated.
    do_action( 'ag_fs_loaded' );

    // Hook uninstall cleanup to Freemius.
    ag_fs()->add_action( 'after_uninstall', 'wpag_uninstall_cleanup' );
}

/**
 * Check if Pro version is active.
 *
 * @return bool
 */
function wpag_is_pro() {
    return ag_fs()->is_paying();
}

// Plugin constants.
define( 'WPAG_VERSION', '1.0.0' );
define( 'WPAG_PLUGIN_FILE', __FILE__ );
define( 'WPAG_PLUGIN_DIR', plugin_dir_path( __FILE__ ) );
define( 'WPAG_PLUGIN_URL', plugin_dir_url( __FILE__ ) );
define( 'WPAG_PLUGIN_BASENAME', plugin_basename( __FILE__ ) );

// Include class files.
require_once WPAG_PLUGIN_DIR . 'includes/class-wpag-checks.php';
require_once WPAG_PLUGIN_DIR . 'includes/class-wpag-scanner.php';
require_once WPAG_PLUGIN_DIR . 'includes/class-wpag-admin.php';
require_once WPAG_PLUGIN_DIR . 'includes/class-wpag-ajax.php';
require_once WPAG_PLUGIN_DIR . 'includes/class-wpag-auto-fixer.php';
require_once WPAG_PLUGIN_DIR . 'includes/class-wpag-statement.php';
require_once WPAG_PLUGIN_DIR . 'includes/class-wpag-pro.php';

/**
 * Return default plugin settings.
 *
 * @return array
 */
function wpag_default_settings() {
    return array(
        'auto_fix_skip_link'      => true,
        'auto_fix_lang_attr'      => true,
        'auto_fix_empty_headings' => false,
        'auto_fix_form_labels'    => false,
        'statement_page_id'       => 0,
        'scan_post_types'         => array( 'page', 'post' ),
        'severity_filter'         => 'all',
        'statement_org_name'      => '',
        'statement_email'         => '',
        'statement_conformance'   => 'AA',
        'statement_limitations'   => '',
    );
}


/**
 * Initialize plugin classes.
 */
function wpag_init() {
    WPAG_Admin::instance();
    WPAG_Ajax::instance();
    WPAG_Auto_Fixer::instance();
    WPAG_Statement::instance();
    WPAG_Pro::instance();
}
add_action( 'plugins_loaded', 'wpag_init' );

/**
 * Plugin activation.
 */
function wpag_activate() {
    add_option( 'wpag_settings', wpag_default_settings() );
    add_option( 'wpag_version', WPAG_VERSION );

}
register_activation_hook( __FILE__, 'wpag_activate' );

/**
 * Plugin deactivation.
 */
function wpag_deactivate() {
    global $wpdb;
    $wpdb->query( $wpdb->prepare(
        "DELETE FROM {$wpdb->options} WHERE option_name LIKE %s OR option_name LIKE %s",
        $wpdb->esc_like( '_transient_wpag_scan_' ) . '%',
        $wpdb->esc_like( '_transient_timeout_wpag_scan_' ) . '%'
    ) );

}
register_deactivation_hook( __FILE__, 'wpag_deactivate' );

/**
 * Uninstall cleanup - hooked to Freemius after_uninstall action.
 * This runs when the plugin is deleted via WordPress admin.
 */
function wpag_uninstall_cleanup() {
    // Get settings BEFORE deleting (need statement_page_id).
    $wpag_settings = get_option( 'wpag_settings' );

    // Delete the statement page if it exists.
    if ( is_array( $wpag_settings ) && ! empty( $wpag_settings['statement_page_id'] ) ) {
        wp_delete_post( absint( $wpag_settings['statement_page_id'] ), true );
    }

    // Delete options.
    delete_option( 'wpag_settings' );
    delete_option( 'wpag_version' );
    delete_option( 'wpag_audit_history' );
    delete_option( 'wpag_pdf_scan_results' );
    delete_option( 'wpag_custom_rules' );
    delete_option( 'wpag_scan_frequency' );

    // Delete all post meta.
    global $wpdb;
    $wpdb->query( $wpdb->prepare(
        "DELETE FROM {$wpdb->postmeta} WHERE meta_key LIKE %s",
        $wpdb->esc_like( '_wpag_' ) . '%'
    ) );

    // Delete all transients.
    $wpdb->query( $wpdb->prepare(
        "DELETE FROM {$wpdb->options} WHERE option_name LIKE %s OR option_name LIKE %s",
        $wpdb->esc_like( '_transient_wpag_scan_' ) . '%',
        $wpdb->esc_like( '_transient_timeout_wpag_scan_' ) . '%'
    ) );

    // Clear scheduled cron.
    wp_clear_scheduled_hook( 'wpag_scheduled_scan' );
}