@Override
public HanabiraBoard deserialize(
JsonElement json, Type type, JsonDeserializationContext context) throws JsonParseException {
JsonObject boardsJsonObject = json.getAsJsonObject().get("boards").getAsJsonObject();
Set<Map.Entry<String, JsonElement>> boardsSet = boardsJsonObject.entrySet();
if (boardsSet.size() > 1) {
throw new IllegalArgumentException("Few board entries received for a request");
}
Map.Entry<String, JsonElement> boardEntry = boardsSet.iterator().next();
boardKey = boardEntry.getKey();
JsonObject boardObject = boardEntry.getValue().getAsJsonObject();
int pages = boardObject.get("pages").getAsInt();
HanabiraBoard cachedBoard = Hanabira.getStem().findBoardByKey(boardKey);
if (cachedBoard == null) {
cachedBoard = new HanabiraBoard(boardKey, pages, null);
Hanabira.getStem().saveBoard(cachedBoard);
} else {
cachedBoard.update(pages, null);
}
JsonElement pageElement = boardObject.get("page");
int page = (pageElement == null) ? 0 : pageElement.getAsInt();
List<Integer> threadsOnPageIds = new ArrayList<>();
for (JsonElement threadElement : boardObject.getAsJsonArray("threads")) {
threadsOnPageIds.add(
createThreadWithPosts(threadElement.getAsJsonObject(), boardKey).getThreadId());
}
cachedBoard.updatePage(page, threadsOnPageIds);
return cachedBoard;
}
private static HanabiraPost createAndSavePost(
JsonObject postObject, int threadId, String boardKey) {
// todo files
int postId = postObject.get("post_id").getAsInt();
LocalDateTime modifiedDate = extractLocatDateTime(postObject.get("last_modified"));
HanabiraPost cachedPost = Hanabira.getStem().findPostById(postId);
if (cachedPost != null) {
if (modifiedDate == null || !cachedPost.isUpToDate(modifiedDate)) {
// update
cachedPost.setModifiedDate(modifiedDate);
cachedPost.setMessage(postObject.get("message").getAsString());
cachedPost.setName(postObject.get("name").getAsString());
cachedPost.setSubject(postObject.get("subject").getAsString());
}
} else {
// brand new post
int displayId = postObject.get("display_id").getAsInt();
LocalDateTime createdDate = extractLocatDateTime(postObject.get("date"));
String message = postObject.get("message").getAsString();
String subject = postObject.get("subject").getAsString();
String name = postObject.get("name").getAsString();
boolean op = postObject.get("op").getAsBoolean();
int boardId =
boardKey != null
? HanabiraBoard.Info.getIdForKey(boardKey)
: postObject.get("board_id").getAsInt();
cachedPost =
new HanabiraPost(
displayId,
modifiedDate,
createdDate,
postId,
message,
subject,
boardId,
name,
threadId,
op);
Hanabira.getStem().savePost(cachedPost, boardKey);
}
return cachedPost;
}
private static HanabiraThread createThreadWithPosts(
JsonObject threadObject, @Nullable String boardKey) {
int threadId = threadObject.get("thread_id").getAsInt();
LocalDateTime modifiedDate = extractLocatDateTime(threadObject.get("last_modified"));
HanabiraThread thread = Hanabira.getStem().findThreadById(threadId);
boolean oldThread = thread != null;
if (oldThread) {
if (modifiedDate == null || !thread.isUpToDate(modifiedDate)) {
// update thread meta
thread.setPostsCount(threadObject.get("posts_count").getAsInt());
thread.setArchived(threadObject.get("archived").getAsBoolean());
thread.setFilesCount(threadObject.get("files_count").getAsInt());
thread.setTitle(threadObject.get("title").getAsString());
thread.setLastHit(extractLocatDateTime(threadObject.get("last_hit")));
thread.setModifiedDate(modifiedDate);
}
} else {
// brand new thread
int displayId = threadObject.get("display_id").getAsInt();
boolean archived = threadObject.get("archived").getAsBoolean();
int postsCount = threadObject.get("posts_count").getAsInt();
int filesCount = threadObject.get("files_count").getAsInt();
String title = threadObject.get("title").getAsString();
int boardId =
boardKey != null
? HanabiraBoard.Info.getIdForKey(boardKey)
: threadObject.get("board_id").getAsInt();
boolean autosage = threadObject.get("autosage").getAsBoolean();
LocalDateTime lastHit = extractLocatDateTime(threadObject.get("last_hit"));
thread =
new HanabiraThread(
displayId,
threadId,
modifiedDate,
postsCount,
filesCount,
boardId,
archived,
title,
autosage,
lastHit);
Hanabira.getStem().saveThread(thread, boardKey);
}
// cache posts
for (JsonElement postElement : threadObject.getAsJsonArray("posts")) {
createAndSavePost(postElement.getAsJsonObject(), threadId, boardKey);
}
if (!oldThread) {
// set thread creation date
HanabiraPost opPost = Hanabira.getStem().findPostByDisplayId(boardKey, thread.getDisplayId());
if (opPost == null || !opPost.isOp()) {
throw new InputMismatchException("Op post not received");
}
thread.setCreatedDate(opPost.getCreatedDate());
}
return thread;
}