/**
* @param StoryName $storyName
* @param ChapterNumber $chapterNumber
* @param Message $previousMessage
* @return Message
*/
public function startChapter(StoryName $storyName, ChapterNumber $chapterNumber, Message $previousMessage)
{
$command = $this->chapterCommandTemplate->createMessageFromPreviousMessage($previousMessage);
$command = $command->withAddedMetadata(Metadata::STORY_CHAPTER, $chapterNumber->toString());
return $command->withAddedMetadata(Metadata::STORY_NAME, $storyName->toString());
}
/**
* @param ChapterNumber $chapterNumber
* @return ChapterStatus
*/
public static function forChapterNumberCannotBeFound(ChapterNumber $chapterNumber)
{
return new self(sprintf('Chapter status for chapter number %s cannot be found', $chapterNumber->toString()));
}
/**
* @param ChapterNumber $chapterNumber
* @param MessageFactory $messageFactory
* @return Message
* @throws Exception\Story
*/
private function getOriginalStartMessageForChapterNumber(ChapterNumber $chapterNumber, MessageFactory $messageFactory)
{
if (!isset($this->chapterNumberStartMessageMap[$chapterNumber->toString()])) {
throw Exception\Story::hasNoStartMessageLoggedForChapterNumber($chapterNumber);
}
$messageData = $this->chapterNumberStartMessageMap[$chapterNumber->toString()];
return $messageFactory->createMessageFromArray($messageData['message_name'], $messageData);
}
