<?php
/**
 * Connection & Utility AJAX Handlers
 * No images are stored in WordPress — everything is delivered from the backend.
 */
class Affirm_Sync {

    public function __construct() {
        add_action('wp_ajax_affirm_test_connection', array($this, 'ajax_test_connection'));
        add_action('wp_ajax_affirm_generate_signed_url', array($this, 'ajax_generate_signed_url'));
    }

    public function ajax_test_connection() {
        check_ajax_referer('affirm_admin_nonce', 'nonce');

        if (!current_user_can('manage_options')) {
            wp_send_json_error(array('message' => 'Unauthorized'));
        }

        $result = Affirm_Api::get('validate');

        if (is_wp_error($result)) {
            wp_send_json_error(array('message' => $result->get_error_message()));
        }

        wp_send_json_success(array(
            'message' => 'Connected successfully',
            'imageCount' => isset($result['imageCount']) ? $result['imageCount'] : 0,
        ));
    }

    /**
     * AJAX: Generate a signed URL for an image (used by embed code modal)
     */
    public function ajax_generate_signed_url() {
        check_ajax_referer('affirm_admin_nonce', 'nonce');

        if (!current_user_can('manage_options')) {
            wp_send_json_error(array('message' => 'Unauthorized'));
        }

        $image_id = isset($_POST['image_id']) ? sanitize_text_field(wp_unslash($_POST['image_id'])) : '';
        if (!$image_id) {
            wp_send_json_error(array('message' => 'Image ID required'));
        }

        $ttl = isset($_POST['ttl']) ? absint($_POST['ttl']) : 0;

        $result = Affirm_Api::get("sign/{$image_id}", array('ttl' => $ttl));

        if (is_wp_error($result)) {
            wp_send_json_error(array('message' => $result->get_error_message()));
        }

        wp_send_json_success(array(
            'url'       => isset($result['url']) ? $result['url'] : '',
            'expiresAt' => isset($result['expiresAt']) ? $result['expiresAt'] : 0,
        ));
    }
}