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<?php
namespace Digitigrade\Model;
use Digitigrade\Db;
use Digitigrade\Job\PushObject;
class Note extends PushableModel {
public ?int $id;
public string $uri;
public \DateTimeImmutable $created;
public ?\DateTimeImmutable $modified;
public Actor $author;
public ?string $summary;
public string $plainContent;
// associative array mapping strings to strings - mimetypes to content
public array $formattedContent = [];
public string $language;
/**
* @var Actor[]
*/
public array $mentions = [];
public ?Note $inReplyTo;
public ?Note $threadApex;
public NotePrivacy $privacy;
/**
* @var NoteAttachment[]
*/
public array $attachments = [];
public array $extensions = [];
/**
* Creates and saves a new note with the specified fields pre-set
* @param Actor $author who wrote the note
* @param string $plainContent text of the note, without any markup
* @param string $language ISO 639-3 3-letter language code
* @param ?string $summary summary line or content warning
* @param NotePrivacyScope $scope who is allowed to view this note
* @param bool $indexable whether this note should be findable e.g. in search results
* @return self
*/
public static function create(
Actor $author,
string $plainContent,
string $language,
?string $summary = null,
NotePrivacyScope $scope = NotePrivacyScope::PUBLIC ,
bool $indexable = true
): self {
$note = new self();
// can't set the note uri properly until it's been saved and we have an id
$note->uri = "UNKNOWN";
$note->created = new \DateTimeImmutable();
$note->author = $author;
$note->summary = $summary;
$note->plainContent = $plainContent;
$note->language = $language;
$note->privacy = new NotePrivacy();
$note->privacy->scope = $scope;
$note->privacy->indexable = $indexable;
$note->save();
$note->uri = path_to_uri("/post/$note->id");
$note->save();
return $note;
}
protected function getUpdateWhereClause(\PDO $db): ?string {
if (self::findWhere('uri = ?', [$this->uri]) != null)
return 'uri = ' . $db->quote($this->uri);
if (self::findWhere('id = ?', [$this->id]) != null)
return "id = $this->id";
return null;
}
protected function hydrate() {
$this->privacy = NotePrivacy::findWhere('note_id = ?', [$this->id]);
$this->formattedContent = $this->findFormattedContents();
$this->mentions = $this->findMentions();
$this->attachments = NoteAttachment::findAllWhere('note_id = ?', [$this->id]);
}
protected function validate(): bool {
// author has to be from the same instance as the note itself
return hostname_from_uri($this->author->uri) == hostname_from_uri($this->uri);
}
private function findFormattedContents(): array {
$pdo = Db::getInstance()->getPdo();
$stmt = $pdo->prepare('SELECT mimetype, body FROM note_formatted_content WHERE note_id = ?');
$stmt->execute([$this->id]);
return $stmt->fetchAll(\PDO::FETCH_ASSOC);
}
private function findMentions(): array {
$pdo = Db::getInstance()->getPdo();
$stmt = $pdo->prepare('SELECT actor_id FROM note_mention WHERE note_id = ?');
$stmt->execute([$this->id]);
$actors = array_map(function ($actorId) {
return Actor::find($actorId);
}, $stmt->fetchAll(\PDO::FETCH_COLUMN, 0));
return $actors;
}
public static function findAllWithAuthor(Actor $author, ?int $limit = null, int $offset = 0): array {
return self::findAllWhere('author = ?', [$author->id], $limit, $offset);
}
public function getInteractions(): array {
return Interaction::findAllWithTarget($this);
}
protected function getRelevantServers(): array {
$recipientActors = match ($this->privacy->scope) {
NotePrivacyScope::NONE => [],
NotePrivacyScope::MUTUALS => $this->author->findMutualFollows(),
default => $this->author->findFollowers()
};
$recipientActors = array_merge($recipientActors, $this->mentions, $this->privacy->alsoVisibleTo);
$recipientActors = array_unique($recipientActors);
$instances = array_map(function (Actor $a) {
return $a->findHomeInstance();
}, $recipientActors);
return array_unique($instances);
}
/**
* Gets this note's formatted content in the given mimetype or null if there isn't one
* @param string $mimetype content type to return
* @return ?string the marked up content
*/
public function getFormattedContent(string $mimetype): ?string {
return array_filter($this->formattedContent, fn($item) => $item['mimetype'] == $mimetype)[0]['body'] ?? null;
}
public function jsonSerialize(): array {
if ($this->deleted) {
return [
'type' => 'tombstone',
'self' => path_to_uri("/post/$this->id"),
'previousType' => 'note'
];
}
return [
'type' => 'note',
'self' => path_to_uri("/post/$this->id"),
'created' => $this->created->format('c'),
'modified' => $this->modified?->format('c'),
'author' => $this->author->uri,
'summary' => $this->summary,
'plainContent' => $this->plainContent,
'formattedContent' => $this->formattedContent,
'language' => $this->language,
'mentions' => array_map(function (Actor $actor) {
return $actor->uri;
}, $this->mentions),
'inReplyTo' => $this->inReplyTo?->uri,
'threadApex' => $this->threadApex?->uri,
'privacy' => $this->privacy,
'attachments' => array_map(function (NoteAttachment $attachment) {
return [
'type' => $attachment->type,
'href' => $attachment->href,
'description' => $attachment->description
];
}, $this->attachments),
//'extensions' => []
];
}
}
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