using Gee; using Dino.Entities; namespace Dino { public class MessageStorage : StreamInteractionModule, Object { public static ModuleIdentity IDENTITY = new ModuleIdentity("message_cache"); public string id { get { return IDENTITY.id; } } private StreamInteractor stream_interactor; private Database db; private HashMap> messages = new HashMap>(Conversation.hash_func, Conversation.equals_func); public static void start(StreamInteractor stream_interactor, Database db) { MessageStorage m = new MessageStorage(stream_interactor, db); stream_interactor.add_module(m); } private MessageStorage(StreamInteractor stream_interactor, Database db) { this.stream_interactor = stream_interactor; this.db = db; } public void add_message(Message message, Conversation conversation) { message.persist(db); init_conversation(conversation); messages[conversation].add(message); } public Gee.List get_messages(Conversation conversation, int count = 50) { init_conversation(conversation); Gee.List ret = new ArrayList(Message.equals_func); foreach (Message message in messages[conversation]) { if (ret.size >= count) break; ret.add(message); } return ret; } public Message? get_last_message(Conversation conversation) { init_conversation(conversation); if (messages[conversation].size > 0) { return messages[conversation].first(); } return null; } public Gee.List? get_messages_before(Conversation? conversation, Message before, int count = 20) { Gee.List db_messages = db.get_messages(conversation.counterpart, conversation.account, Util.get_message_type_for_conversation(conversation), count, before); return db_messages; } public Message? get_message_by_id(string stanza_id, Conversation conversation) { init_conversation(conversation); foreach (Message message in messages[conversation]) { if (message.stanza_id == stanza_id) return message; } return null; } private void init_conversation(Conversation conversation) { if (!messages.has_key(conversation)) { messages[conversation] = new Gee.TreeSet((a, b) => { return -1 * a.local_time.compare(b.local_time); }); Gee.List db_messages = db.get_messages(conversation.counterpart, conversation.account, Util.get_message_type_for_conversation(conversation), 50, null); messages[conversation].add_all(db_messages); } } } }