<?php

declare(strict_types = 1);

// {{{ License
// This file is part of GNU social - https://www.gnu.org/software/social
//
// GNU social 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.
//
// GNU social 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 GNU social.  If not, see <http://www.gnu.org/licenses/>.
// }}}

namespace Plugin\Repeat;

use App\Core\DB\DB;
use App\Core\Event;
use function App\Core\I18n\_m;
use App\Core\Modules\NoteHandlerPlugin;
use App\Core\Router\RouteLoader;
use App\Core\Router\Router;
use App\Entity\Actor;
use App\Entity\Note;
use App\Util\Common;
use App\Util\Exception\ClientException;
use App\Util\Exception\DuplicateFoundException;
use App\Util\Exception\InvalidFormException;
use App\Util\Exception\NoSuchNoteException;
use App\Util\Exception\NotFoundException;
use App\Util\Exception\RedirectException;
use App\Util\Exception\ServerException;
use App\Util\Formatting;
use Plugin\Repeat\Entity\NoteRepeat;
use Symfony\Component\HttpFoundation\Request;

class Repeat extends NoteHandlerPlugin
{
    /**
     * HTML rendering event that adds the repeat form as a note
     * action, if a user is logged in
     *
     * @throws InvalidFormException
     * @throws NoSuchNoteException
     * @throws RedirectException*@throws ClientException*@throws DuplicateFoundException
     *
     * @return bool Event hook
     */
    public function onAddNoteActions(Request $request, Note $note, array &$actions): bool
    {
        if (\is_null($user = Common::user())) {
            return Event::next;
        }

        // If note is repeated, "is_repeated" is 1
        $is_repeat = DB::count('note_repeat', ['note_id' => $note->getId()]) >= 1;

        try {
            if (DB::findOneBy('note_repeat', ['repeat_of' => $note->getId()])) {
                return Event::next;
            }
        } catch (DuplicateFoundException|NotFoundException $e) {
        }

        // Generating URL for repeat action route
        $args              = ['id' => $note->getId()];
        $type              = Router::ABSOLUTE_PATH;
        $repeat_action_url = $is_repeat
            ? Router::url('repeat_remove', $args, $type)
            : Router::url('repeat_add', $args, $type);

        // TODO clean this up
        // SECURITY: open redirect?
        $query_string = $request->getQueryString();
        // Concatenating get parameter to redirect the user to where he came from
        $repeat_action_url .= !\is_null($query_string) ? '?from=' . mb_substr($query_string, 2) : '';

        $extra_classes = $is_repeat ? 'note-actions-set' : 'note-actions-unset';
        $repeat_action = [
            'url'     => $repeat_action_url,
            'title'   => $is_repeat ? 'Remove this repeat' : 'Repeat this note!',
            'classes' => "button-container repeat-button-container {$extra_classes}",
            'id'      => 'repeat-button-container-' . $note->getId(),
        ];

        $actions[] = $repeat_action;
        return Event::next;
    }

    /**
     * Append on note information about user actions.
     *
     * @return array|bool
     */
    public function onAppendCardNote(array $vars, array &$result)
    {
        // if note is the original and user isn't the one who repeated, append on end "user repeated this"
        // if user is the one who repeated, append on end "you repeated this, remove repeat?"
        $check_user = !\is_null(Common::user());

        $note = $vars['note'];

        $complementary_info = '';
        $repeat_actor       = [];
        $note_repeats       = NoteRepeat::getNoteRepeats($note);

        // Get actors who replied
        foreach ($note_repeats as $reply) {
            $repeat_actor[] = Actor::getWithPK($reply->getActorId());
        }
        if (\count($repeat_actor) < 1) {
            return Event::next;
        }

        // Filter out multiple replies from the same actor
        $repeat_actor = array_unique($repeat_actor, \SORT_REGULAR);

        // Add to complementary info
        foreach ($repeat_actor as $actor) {
            $repeat_actor_url      = $actor->getUrl();
            $repeat_actor_nickname = $actor->getNickname();

            if ($check_user && $actor->getId() === (Common::actor())->getId()) {
                // If the repeat is yours
                try {
                    $you_translation = _m('You');
                } catch (ServerException $e) {
                    $you_translation = 'You';
                }

                $prepend            = "<a href={$repeat_actor_url}>{$you_translation}</a>, " . ($prepend = &$complementary_info);
                $complementary_info = $prepend;
            } else {
                // If the repeat is from someone else
                $complementary_info .= "<a href={$repeat_actor_url}>{$repeat_actor_nickname}</a>, ";
            }
        }

        $complementary_info = rtrim(trim($complementary_info), ',');
        $complementary_info .= ' repeated this note.';
        $result[] = Formatting::twigRenderString($complementary_info, []);

        return $result;
    }

    public function onAddRoute(RouteLoader $r): bool
    {
        // Add/remove note to/from repeats
        $r->connect(id: 'repeat_add', uri_path: '/object/note/{id<\d+>}/repeat', target: [Controller\Repeat::class, 'repeatAddNote']);
        $r->connect(id: 'repeat_remove', uri_path: '/object/note/{id<\d+>}/unrepeat', target: [Controller\Repeat::class, 'repeatRemoveNote']);

        return Event::next;
    }
}