<?php
        global $CONFIG;

        admin_gatekeeper();
        action_gatekeeper();

        $user_guid = (int) get_input('user_guid');
        $roles = get_input('user_roles');
        $subjects = get_input('user_subjects');
        $can_moderate_tools = get_input("can_moderate_tools");
        $can_add_external_groups = get_input("can_add_external_groups");

        $user = get_entity($user_guid);
        $role_text = "";

        if ($user)
        {
            if ($roles == 'none') {
                /*translation:No role*/
                $role_text = elgg_echo("koolielu:user:role_none");
                $user->clearMetadata('roles');
                $user->clearMetadata('subjects');
                $user->clearMetadata('can_moderate_tools');
                $user->clearMetadata('can_add_external_groups');
            }
            if ($roles == 'moderator') {
                /*translation:Moderator*/
                $role_text = elgg_echo("koolielu:user_role_moderator");
                $user->roles = $roles;
                $user->subjects = $subjects;
                if (!empty($can_moderate_tools)) {
                    $user->can_moderate_tools = 'true';
                } else {
                    $user->clearMetadata('can_moderate_tools');
                }
                if (!empty($can_add_external_groups)) {
                    $user->can_add_external_groups = 'true';
                } else {
                    $user->clearMetadata('can_add_external_groups');
                }
            }
            if ($roles == 'editor') {
                /*translation:Editor*/
                $role_text = elgg_echo("koolielu:user_role_editor");
                $user->roles = $roles;
                $user->clearMetadata('subjects');
                $user->clearMetadata('can_moderate_tools');
                $user->clearMetadata('can_add_external_groups');
            }
            if (!$roles) {
                /*translation:No roles given.*/
                register_error(elgg_echo("koolielu:error_no_roles_given"));
            } else {
                /*translation:User role has been set to: %s*/
                system_message(sprintf(elgg_echo("koolielu:user_role_has_been_set_to"), $role_text));
            }
        } else {
            /*translation:No user entity provided.*/
            register_error(elgg_echo('koolielu:error_no_user_entity_provided'));
        }

        forward($_SERVER['HTTP_REFERER']);
?>