<?php

namespace WPD_Platform\Integrations\Fluentcommunity\Actions;

use Dollie\SDK\Attributes\Action;
use Dollie\SDK\Base\AutomateAction;
use Dollie\SDK\Traits\SingletonLoader;
use Exception;
use FluentCommunity\Modules\Course\Services\CourseHelper;

#[Action(
    id: 'fc_add_user_to_course',
    label: 'Add User to Course',
    since: '1.0.0'
)]
/**
 * AddUserToCourse.
 * php version 5.6
 *
 * @category AddUserToCourse
 * @author   BSF <username@example.com>
 * @license  https://www.gnu.org/licenses/gpl-3.0.html GPLv3
 * @link     https://www.brainstormforce.com/
 * @since    1.0.0
 */
/**
 * AddUserToCourse
 *
 * @category AddUserToCourse
 * @since    1.0.0
 */
class AddUserToCourse extends AutomateAction
{
    use SingletonLoader;

    /**
     * Integration type.
     *
     * @var string
     */
    public $integration = 'FluentCommunity';

    /**
     * Action name.
     *
     * @var string
     */
    public $action = 'fc_add_user_to_course';

    /**
     * Register a action.
     *
     * @param array $actions actions.
     * @return array
     */
    public function register($actions)
    {
        $actions[$this->integration][$this->action] = [
            'label' => __('Add User to Course', 'dollie'),
            'action' => $this->action,
            'function' => [$this, 'action_listener'],
        ];

        return $actions;
    }

    /**
     * Action listener.
     *
     * @param int   $user_id         User ID.
     * @param int   $automation_id   Automation ID.
     * @param array $fields          Fields.
     * @param array $selected_options Selected options.
     *
     * @return array|void
     */
    public function _action_listener($user_id, $automation_id, $fields, $selected_options)
    {
        $course_id = isset($selected_options['course_id']) ? (int) sanitize_text_field($selected_options['course_id']) : 0;
        $user_email = isset($selected_options['user_email']) ? sanitize_email($selected_options['user_email']) : '';

        if (! class_exists('FluentCommunity\Modules\Course\Services\CourseHelper')) {
            return [
                'status' => 'error',
                'message' => 'CourseHelper class not found.',
            ];
        }

        $user = get_user_by('email', $user_email);

        if (! $user) {
            return [
                'status' => 'error',
                'message' => 'User not found with the provided email.',
            ];
        }

        if (! $this->is_valid_course($course_id)) {
            return [
                'status' => 'error',
                'message' => 'Invalid Course ID.',
            ];
        }

        try {
            CourseHelper::enrollCourse($course_id, $user->ID);
        } catch (Exception $e) {
            return [
                'status' => 'error',
                'message' => 'An error occurred: ' . $e->getMessage(),
            ];
        }

        return [
            'status' => 'success',
            'message' => 'User added to course successfully',
            'course_id' => $course_id,
            'user_id' => $user->ID,
        ];
    }

    /**
     * Check if the course ID is valid.
     *
     * @param int $course_id Course ID.
     * @return bool
     */
    private function is_valid_course($course_id)
    {
        global $wpdb;
        $course = $wpdb->get_row($wpdb->prepare("SELECT ID FROM {$wpdb->prefix}fcom_spaces WHERE ID = %d AND type = 'course'", $course_id));

        return (bool) $course;
    }
}

AddUserToCourse::get_instance();
