MessageStorage/Processor, correctly resolve conversations (fixup 22adbd3)

1 files changed, 68 insertions, 0 deletions

diff --git a/libdino/src/service/message_storage.vala b/libdino/src/service/message_storage.vala
new file mode 100644
index 00000000..ea765f96
--- /dev/null
+++ b/libdino/src/service/message_storage.vala
@@ -0,0 +1,68 @@
+using Gee;
+
+using Dino.Entities;
+
+namespace Dino {
+
+public class MessageStorage : StreamInteractionModule, Object {
+    public static ModuleIdentity<MessageStorage> IDENTITY = new ModuleIdentity<MessageStorage>("message_cache");
+    public string id { get { return IDENTITY.id; } }
+
+    private StreamInteractor stream_interactor;
+    private Database db;
+
+    private HashMap<Conversation, Gee.List<Message>> messages = new HashMap<Conversation, Gee.List<Entities.Message>>(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<Message> get_messages(Conversation conversation, int count = 50) {
+        init_conversation(conversation);
+        if (messages[conversation].size > 0) {
+            return messages[conversation][int.max(messages[conversation].size - count - 1, 0) : messages[conversation].size];
+        }
+        return new ArrayList<Conversation>();
+    }
+
+    public Message? get_last_message(Conversation conversation) {
+        init_conversation(conversation);
+        if (messages[conversation].size > 0) {
+            return messages[conversation][messages[conversation].size - 1];
+        }
+        return null;
+    }
+
+    public Gee.List<Message>? get_messages_before(Conversation? conversation, Message before, int count = 20) {
+        Gee.List<Message> 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);
+        for (int i = messages[conversation].size - 1; i > 0; i--) {
+            if (messages[conversation][i].stanza_id == stanza_id) return messages[conversation][i];
+        }
+        return null;
+    }
+
+    private void init_conversation(Conversation conversation) {
+        if (!messages.has_key(conversation)) {
+            messages[conversation] = db.get_messages(conversation.counterpart, conversation.account, Util.get_message_type_for_conversation(conversation), 50, null);
+        }
+    }
+}
+
+}
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