<?php
// This file is part of Moodle - http://moodle.org/
//
// Moodle is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// Moodle is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.

/**
 * Privacy class for requesting user data.
 *
 * @package    portfolio_googledocs
 * @copyright  2018 Jake Dallimore <jrhdallimore@gmail.com>
 * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
 */
namespace portfolio_googledocs\privacy;

defined('MOODLE_INTERNAL') || die();

use core_privacy\local\metadata\collection;

/**
 * Provider for the portfolio_googledocs plugin.
 *
 * @copyright  2018 Jake Dallimore <jrhdallimore@gmail.com>
 * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
 */
class provider implements
        // This portfolio plugin does not store any data itself.
        // It has no database tables, and it purely acts as a conduit, sending data externally.
        \core_privacy\local\metadata\provider,
        \core_portfolio\privacy\portfolio_provider {

    /**
     * Returns meta data about this system.
     *
     * @param   collection $collection The initialised collection to add items to.
     * @return  collection     A listing of user data stored through this system.
     */
    public static function get_metadata(collection $collection) : collection {
        return $collection->add_external_location_link('docs.google.com', ['data' => 'privacy:metadata:data'],
                                                       'privacy:metadata');
    }

    /**
     * Export all portfolio data from each portfolio plugin for the specified userid and context.
     *
     * @param   int $userid The user to export.
     * @param   \context $context The context to export.
     * @param   array $subcontext The subcontext within the context to export this information to.
     * @param   array $linkarray The weird and wonderful link array used to display information for a specific item
     */
    public static function export_portfolio_user_data(int $userid, \context $context, array $subcontext, array $linkarray) {
    }

    /**
     * Delete all user information for the provided context.
     *
     * @param  \context $context The context to delete user data for.
     */
    public static function delete_portfolio_for_context(\context $context) {
    }

    /**
     * Delete all user information for the provided user and context.
     *
     * @param  int $userid The user to delete
     * @param  \context $context The context to refine the deletion.
     */
    public static function delete_portfolio_for_user(int $userid, \context $context) {
    }
}