<?php
/**
 * SiteFix AJAX — admin-only endpoints for scan trigger and review-prompt dismiss.
 *
 * @package SiteFix
 * @since   5.0.0
 */

if ( ! defined( 'ABSPATH' ) ) exit;

class SiteFix_Ajax {

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

    private function __construct() {
        add_action( 'wp_ajax_sitefix_run_scan',         array( $this, 'run_scan' ) );
        add_action( 'wp_ajax_sitefix_dismiss_review',   array( $this, 'dismiss_review' ) );
    }

    public function run_scan() {
        check_ajax_referer( 'sitefix_nonce', 'nonce' );
        if ( ! current_user_can( 'manage_options' ) ) wp_send_json_error( 'unauthorized' );
        $scanner = SiteFix_Scanner::get_instance();
        $report  = $scanner->scan_recent_pages( 20 );
        $score   = $scanner->calculate_score( $report );
        set_transient( 'sitefix_last_scan', array(
            'date'   => current_time( 'mysql' ),
            'report' => $report,
            'score'  => $score,
        ), 25 * HOUR_IN_SECONDS );
        wp_send_json_success( array( 'score' => $score, 'pages' => count( $report ) ) );
    }

    public function dismiss_review() {
        check_ajax_referer( 'sitefix_review_nonce' );
        update_user_meta( get_current_user_id(), 'sitefix_review_dismissed', 1 );
        wp_send_json_success();
    }
}