Update User Info

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//  | | | |  ___    ___   _ __    |_ _|  _ __   |  ___|   ___     | | | |  _ __     __| |   __ _  | |_    ___ 
//  | | | | / __|  / _ \ | '__|    | |  | '_ \  | |_     / _ \    | | | | | '_ \   / _` |  / _` | | __|  / _ \
//  | |_| | \__ \ |  __/ | |       | |  | | | | |  _|   | (_) |   | |_| | | |_) | | (_| | | (_| | | |_  |  __/
//   \___/  |___/  \___| |_|      |___| |_| |_| |_|      \___/     \___/  | .__/   \__,_|  \__,_|  \__|  \___|
//                                                                        |_|                                 
// https://pahona.org/api/wp-json/custom/v1/update-user-info
function custom_user_update_endpoint() {
    register_rest_route('custom/v1', '/update-user-info', array(
        'methods' => 'POST',
        'callback' => 'handle_user_update',
        'permission_callback' => '__return_true',
        'args' => array(
            'first_name' => array(
                'required' => false,
                'type' => 'string',
                'description' => 'The first name of the user',
            ),
            'last_name' => array(
                'required' => false,
                'type' => 'string',
                'description' => 'The last name of the user',
            ),
            'marital_status' => array(
                'required' => false,
                'type' => 'string',
                'description' => 'The marital status of the user',
            ),
            'nid' => array(
                'required' => false,
                'type' => 'string',
                'description' => 'The National ID of the user',
            ),
            'contact_number' => array(
                'required' => true,
                'type' => 'string',
                'description' => 'The contact number for the user',
            ),
        ),
    ));
}
add_action('rest_api_init', 'custom_user_update_endpoint');

function handle_user_update($request) {
    $user = wp_get_current_user();

    // Update user meta fields
    if ($request->get_param('first_name')) {
        update_user_meta($user->ID, 'first_name', sanitize_text_field($request->get_param('first_name')));
    }
    if ($request->get_param('last_name')) {
        update_user_meta($user->ID, 'last_name', sanitize_text_field($request->get_param('last_name')));
    }
    if ($request->get_param('marital_status')) {
        update_user_meta($user->ID, 'marital_status', sanitize_text_field($request->get_param('marital_status')));
    }
    if ($request->get_param('nid')) {
        update_user_meta($user->ID, 'nid', sanitize_text_field($request->get_param('nid')));
    }

    // Always update contact number
    $contact_number = sanitize_text_field($request->get_param('contact_number'));
    if (!preg_match('/^[0-9]{11}$/', $contact_number)) {
        return new WP_Error('invalid_contact_number', 'Invalid contact number format (should be 11 digits)', array('status' => 400));
    }
    update_user_meta($user->ID, 'contact_number', $contact_number);

    return new WP_REST_Response(array('message' => 'User information updated successfully.'), 200);
}