<?php
require_once dirname (__DIR__) . DIRECTORY_SEPARATOR . "utils" . DIRECTORY_SEPARATOR . "discovery.php";
use Activitypub_Discovery;

/**
 * GNU social - a federating social network
 *
 * Todo: Description
 *
 * PHP version 5
 *
 * LICENCE: This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Affero General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program 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 Affero General Public License for more details.
 *
 * You should have received a copy of the GNU Affero General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 *
 * @category  Plugin
 * @package   GNUsocial
 * @author    Diogo Cordeiro <diogo@fc.up.pt>
 * @author    Daniel Supernault <danielsupernault@gmail.com>
 * @copyright 2015 Free Software Foundaction, Inc.
 * @license   http://www.fsf.org/licensing/licenses/agpl-3.0.html GNU Affero General Public License version 3.0
 * @link      https://gnu.io/social
 */

if (!defined('GNUSOCIAL')) { exit(1); }

class apActorInboxAction extends ManagedAction
{
    protected $needLogin = false;
    protected $canPost   = true;

    protected function handle ()
    {
        $nickname  = $this->trimmed ('nickname');
        try {
          $user    = User::getByNickname ($nickname);
          $profile = $user->getProfile ();
          $url     = $profile->profileurl;
        } catch (Exception $e) {
          ActivityPubReturn::error ("Invalid username.");
        }

        if ($_SERVER['REQUEST_METHOD'] !== 'POST') {
            ActivityPubReturn::error ("C2S not implemented just yet.");
        }

        $data = json_decode (file_get_contents ('php://input'));

        // Validate data
        if (!(isset($data->type))) {
            ActivityPubReturn::error ("Type was not specified.");
        }
        if (!isset($data->actor)) {
            ActivityPubReturn::error ("Actor was not specified.");
        }
        if (!isset($data->object)) {
            ActivityPubReturn::error ("Object was not specified.");
        }

        // Get valid Actor object
        try {
            require_once dirname (__DIR__) . DIRECTORY_SEPARATOR . "utils" . DIRECTORY_SEPARATOR . "discovery.php";
            $actor_profile = new Activitypub_Discovery;
            $actor_profile = $actor_profile->lookup($data->actor);
            $actor_profile = $actor_profile[0];
        } catch (Exception $e) {
            ActivityPubReturn::error ("Invalid Actor.", 404);
        }

        $to_profiles = array ($user);

        // Process request
        switch ($data->type) {
            case "Create":
                require_once __DIR__ . DIRECTORY_SEPARATOR . "inbox" . DIRECTORY_SEPARATOR . "Create.php";
                break;
            case "Delete":
                require_once __DIR__ . DIRECTORY_SEPARATOR . "inbox" . DIRECTORY_SEPARATOR . "Delete.php";
                break;
            case "Follow":
                require_once __DIR__ . DIRECTORY_SEPARATOR . "inbox" . DIRECTORY_SEPARATOR . "Follow.php";
                break;
            case "Like":
                require_once __DIR__ . DIRECTORY_SEPARATOR . "inbox" . DIRECTORY_SEPARATOR . "Like.php";
                break;
            case "Undo":
                require_once __DIR__ . DIRECTORY_SEPARATOR . "inbox" . DIRECTORY_SEPARATOR . "Undo.php";
                break;
            case "Announce":
                require_once __DIR__ . DIRECTORY_SEPARATOR . "inbox" . DIRECTORY_SEPARATOR . "Announce.php";
                break;
            default:
                ActivityPubReturn::error ("Invalid type value.");
        }
    }
}