gnu-social/plugins/Favourite/Entity/NoteFavourite.php

<?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\Favourite\Entity;

use App\Core\Cache;
use App\Core\DB\DB;
use App\Core\Entity;
use App\Entity\Actor;
use App\Entity\LocalUser;
use App\Entity\Note;
use DateTimeInterface;

class NoteFavourite extends Entity
{
    // {{{ Autocode
    // @codeCoverageIgnoreStart
    private int $note_id;
    private int $actor_id;
    private DateTimeInterface $created;
    private DateTimeInterface $modified;

    public function setNoteId(int $note_id): self
    {
        $this->note_id = $note_id;
        return $this;
    }

    public function getNoteId(): int
    {
        return $this->note_id;
    }

    public function setActorId(int $actor_id): self
    {
        $this->actor_id = $actor_id;
        return $this;
    }

    public function getActorId(): int
    {
        return $this->actor_id;
    }

    public function setCreated(DateTimeInterface $created): self
    {
        $this->created = $created;
        return $this;
    }

    public function getCreated(): DateTimeInterface
    {
        return $this->created;
    }

    public function setModified(DateTimeInterface $modified): self
    {
        $this->modified = $modified;
        return $this;
    }

    public function getModified(): DateTimeInterface
    {
        return $this->modified;
    }

    // @codeCoverageIgnoreEnd
    // }}} Autocode

    public static function cacheKeys(int|Note $note_id, int|Actor|LocalUser|null $actor_id = null): array
    {
        $note_id  = \is_int($note_id) ? $note_id : $note_id->getId();
        $actor_id = \is_null($actor_id) ? null : (\is_int($actor_id) ? $actor_id : $actor_id->getId());
        return [
            'favourite'         => "note-favourite-{$note_id}-{$actor_id}",
            'favourites'        => "note-favourites-{$note_id}",
            'favourites-actors' => "note-favourites-actors-{$note_id}",
        ];
    }

    public static function getNoteFavourites(Note $note): array
    {
        return Cache::getList(
            self::cacheKeys($note)['favourites'],
            fn () => DB::findBy('note_favourite', ['note_id' => $note->getId()]),
        );
    }

    public static function getNoteFavouriteActors(Note $note): array
    {
        return Cache::getList(
            self::cacheKeys($note)['favourites-actors'],
            fn () => DB::dql(
                <<<'EOF'
                       select a from actor a
                       inner join note_favourite nf
                       with a.id = nf.actor_id
                       where nf.note_id = :note_id
                       order by nf.created DESC
                    EOF,
                ['note_id' => $note->getId()],
            ),
        );
    }

    /**
     * @see Entity->getNotificationTargetIds
     */
    public function getNotificationTargetIds(array $ids_already_known = [], ?int $sender_id = null, bool $include_additional = true): array
    {
        if (!\array_key_exists('object', $ids_already_known)) {
            $target_ids = Note::getById($this->getNoteId())->getNotificationTargetIds();
        } else {
            $target_ids = $ids_already_known['object'];
        }

        // Additional actors that should know about this
        if ($include_additional && \array_key_exists('additional', $ids_already_known)) {
            array_push($target_ids, ...$ids_already_known['additional']);
        } else {
            return $target_ids;
        }

        return array_unique($target_ids);
    }

    public static function schemaDef()
    {
        return [
            'name'   => 'note_favourite',
            'fields' => [
                'note_id'  => ['type' => 'int', 'foreign key' => true, 'target' => 'App\Entity\Note.id', 'multiplicity' => 'one to one', 'not null' => true, 'description' => 'note that is the favorite of'],
                'actor_id' => ['type' => 'int', 'foreign key' => true, 'target' => 'App\Entity\Actor.id', 'multiplicity' => 'one to one', 'not null' => true, 'description' => 'actor who favourited this note'],  // note: formerly referenced notice.id, but we can now record remote users' favorites
                'created'  => ['type' => 'datetime', 'not null' => true, 'description' => 'date this record was created'],
                'modified' => ['type' => 'timestamp', 'not null' => true, 'description' => 'date this record was modified'],
            ],
            'primary key'  => ['note_id', 'actor_id'],
            'foreign keys' => [
                'note_id_to_id_fkey'     => ['note', ['note_id' => 'id']],
                'actor_reply_to_id_fkey' => ['actor', ['actor_id' => 'id']],
            ],
            'indexes' => [
                'fave_note_id_idx'  => ['note_id'],
                'fave_actor_id_idx' => ['actor_id', 'modified'],
                'fave_modified_idx' => ['modified'],
            ],
        ];
    }
}