Source::createFromSource

static function createFromSource(int $kbId, string $sourceType, int $sourceId): ?array
{
	if (in_array($sourceType, self::AVAILABLE_SOURCES))
	{
		$class = __NAMESPACE__ . '\Source\' . $sourceType;
		$data = $class::getData($sourceId);

		if ($data)
		{
			Landing::setEditMode();
			if (!$kbId)
			{
				$kbId = self::getLastCreatedSite();
			}
			$res = Landing::add([
				'TITLE' => $data['TITLE'],
				'SITE_ID' => $kbId,
				'ACTIVE' => 'N',
				'PUBLIC' => 'N'
			]);
			if ($res->isSuccess())
			{
				Target::rememberLastSite($res->getId());
				$landing = Landing::createInstance($res->getId());
				Site::addLandingToMenu($landing->getSiteId(), [
					'ID' => $landing->getId(),
					'TITLE' => $landing->getTitle()
				]);
				// add block to the landing
				foreach ($data['BLOCKS'] as $blockData)
				{
					$blockMeta = self::getBlockMetaByType($blockData['type']);
					if ($blockMeta)
					{
						$blockId = $landing->addBlock($blockMeta['code'], [
							'PUBLIC' => 'N'
						]);
						if ($blockId)
						{
							$block = $landing->getBlockById($blockId);
							if ($blockData['type'] == 'img')
							{
								// for correct saving we should set file to the block
								File::addToBlock($blockId, $blockData['content']['id']);
							}
							$block->updateNodes([
								$blockMeta['selector'] => [$blockData['content']]
							]);
							$block->save();
						}
					}
				}
				return [
					'ID' => $landing->getId(),
					'TITLE' => $landing->getTitle(),
					'PUBLIC_URL' => $landing->getPublicUrl()
				];
			}
		}
	}

	return null;
}