Merge pull request #415 from bobufa/message-search

Message search

1 files changed, 245 insertions, 0 deletions

diff --git a/libdino/src/service/content_item_store.vala b/libdino/src/service/content_item_store.vala
new file mode 100644
index 00000000..83ba1da0
--- /dev/null
+++ b/libdino/src/service/content_item_store.vala
@@ -0,0 +1,245 @@
+using Gee;
+
+using Dino.Entities;
+using Qlite;
+using Xmpp;
+
+namespace Dino {
+
+public class ContentItemStore : StreamInteractionModule, Object {
+    public static ModuleIdentity<ContentItemStore> IDENTITY = new ModuleIdentity<ContentItemStore>("content_item_store");
+    public string id { get { return IDENTITY.id; } }
+
+    public signal void new_item(ContentItem item, Conversation conversation);
+
+    private StreamInteractor stream_interactor;
+    private Database db;
+    private Gee.List<ContentFilter> filters = new ArrayList<ContentFilter>();
+    private HashMap<Conversation, ContentItemCollection> collection_conversations = new HashMap<Conversation, ContentItemCollection>(Conversation.hash_func, Conversation.equals_func);
+
+    public static void start(StreamInteractor stream_interactor, Database db) {
+        ContentItemStore m = new ContentItemStore(stream_interactor, db);
+        stream_interactor.add_module(m);
+    }
+
+    public ContentItemStore(StreamInteractor stream_interactor, Database db) {
+        this.stream_interactor = stream_interactor;
+        this.db = db;
+
+        stream_interactor.get_module(MessageProcessor.IDENTITY).message_received.connect(on_new_message);
+        stream_interactor.get_module(MessageProcessor.IDENTITY).message_sent.connect(on_new_message);
+        stream_interactor.get_module(FileManager.IDENTITY).received_file.connect(insert_file_transfer);
+    }
+
+    public void init(Conversation conversation, ContentItemCollection item_collection) {
+        collection_conversations[conversation] = item_collection;
+    }
+
+    public void uninit(Conversation conversation, ContentItemCollection item_collection) {
+        collection_conversations.unset(conversation);
+    }
+
+    public Gee.List<ContentItem> get_items_from_query(QueryBuilder select, Conversation conversation) {
+        Gee.TreeSet<ContentItem> items = new Gee.TreeSet<ContentItem>(ContentItem.compare);
+
+        foreach (var row in select) {
+            int provider = row[db.content.content_type];
+            int foreign_id = row[db.content.foreign_id];
+            switch (provider) {
+                case 1:
+                    RowOption row_option = db.message.select().with(db.message.id, "=", foreign_id).row();
+                    if (row_option.is_present()) {
+                        Message message = stream_interactor.get_module(MessageStorage.IDENTITY).get_message_by_id(foreign_id, conversation);
+                        if (message == null) {
+                            message = new Message.from_row(db, row_option.inner);
+                        }
+                        items.add(new MessageItem(message, conversation, row[db.content.id]));
+                    }
+                    break;
+                case 2:
+                    RowOption row_option = db.file_transfer.select().with(db.file_transfer.id, "=", foreign_id).row();
+                    if (row_option.is_present()) {
+                        string storage_dir = stream_interactor.get_module(FileManager.IDENTITY).get_storage_dir();
+                        FileTransfer file_transfer = new FileTransfer.from_row(db, row_option.inner, storage_dir);
+                        items.add(new FileItem(file_transfer, row[db.content.id]));
+                    }
+                    break;
+            }
+        }
+
+        Gee.List<ContentItem> ret = new ArrayList<ContentItem>();
+        foreach (ContentItem item in items) {
+            ret.add(item);
+        }
+        return ret;
+    }
+
+    public Gee.List<ContentItem> get_latest(Conversation conversation, int count) {
+        QueryBuilder select = db.content.select()
+            .with(db.content.conversation_id, "=", conversation.id)
+            .order_by(db.content.local_time, "DESC")
+            .order_by(db.content.time, "DESC")
+            .limit(count);
+
+        return get_items_from_query(select, conversation);
+    }
+
+    public Gee.List<ContentItem> get_before(Conversation conversation, ContentItem item, int count) {
+        long local_time = (long) item.sort_time.to_unix();
+        long time = (long) item.display_time.to_unix();
+        QueryBuilder select = db.content.select()
+            .where(@"local_time < ? OR (local_time = ? AND time < ?) OR (local_time = ? AND time = ? AND id < ?)", { local_time.to_string(), local_time.to_string(), time.to_string(), local_time.to_string(), time.to_string(), item.id.to_string() })
+            .with(db.content.conversation_id, "=", conversation.id)
+            .order_by(db.content.local_time, "DESC")
+            .order_by(db.content.time, "DESC")
+            .limit(count);
+
+        return get_items_from_query(select, conversation);
+    }
+
+    public Gee.List<ContentItem> get_after(Conversation conversation, ContentItem item, int count) {
+        long local_time = (long) item.sort_time.to_unix();
+        long time = (long) item.display_time.to_unix();
+        QueryBuilder select = db.content.select()
+            .where(@"local_time > ? OR (local_time = ? AND time > ?) OR (local_time = ? AND time = ? AND id > ?)", { local_time.to_string(), local_time.to_string(), time.to_string(), local_time.to_string(), time.to_string(), item.id.to_string() })
+            .with(db.content.conversation_id, "=", conversation.id)
+            .order_by(db.content.local_time, "ASC")
+            .order_by(db.content.time, "ASC")
+            .limit(count);
+
+        return get_items_from_query(select, conversation);
+    }
+
+    public void add_filter(ContentFilter content_filter) {
+        filters.add(content_filter);
+    }
+
+    private void on_new_message(Message message, Conversation conversation) {
+        MessageItem item = new MessageItem(message, conversation, -1);
+        if (!discard(item)) {
+            item.id = db.add_content_item(conversation, message.time, message.local_time, 1, message.id);
+
+            if (collection_conversations.has_key(conversation)) {
+                collection_conversations.get(conversation).insert_item(item);
+            }
+            new_item(item, conversation);
+        }
+    }
+
+    private void insert_file_transfer(FileTransfer file_transfer, Conversation conversation) {
+        FileItem item = new FileItem(file_transfer, -1);
+        if (!discard(item)) {
+            item.id = db.add_content_item(conversation, file_transfer.time, file_transfer.local_time, 2, file_transfer.id);
+
+            if (collection_conversations.has_key(conversation)) {
+                collection_conversations.get(conversation).insert_item(item);
+            }
+            new_item(item, conversation);
+        }
+    }
+
+    private bool discard(ContentItem content_item) {
+        foreach (ContentFilter filter in filters) {
+            if (filter.discard(content_item)) {
+                return true;
+            }
+        }
+        return false;
+    }
+}
+
+public interface ContentItemCollection : Object {
+    public abstract void insert_item(ContentItem item);
+    public abstract void remove_item(ContentItem item);
+}
+
+public interface ContentFilter : Object {
+    public abstract bool discard(ContentItem content_item);
+}
+
+public abstract class ContentItem : Object {
+    public int id { get; set; }
+    public string type_ { get; set; }
+    public Jid? jid { get; set; default=null; }
+    public DateTime? sort_time { get; set; default=null; }
+    public double seccondary_sort_indicator { get; set; }
+    public DateTime? display_time { get; set; default=null; }
+    public Encryption? encryption { get; set; default=null; }
+    public Entities.Message.Marked? mark { get; set; default=null; }
+
+    public ContentItem(int id, string ty, Jid jid, DateTime sort_time, double seccondary_sort_indicator, DateTime display_time, Encryption encryption, Entities.Message.Marked mark) {
+        this.id = id;
+        this.type_ = ty;
+        this.jid = jid;
+        this.sort_time = sort_time;
+        this.seccondary_sort_indicator = seccondary_sort_indicator;
+        this.display_time = display_time;
+        this.encryption = encryption;
+        this.mark = mark;
+    }
+
+    public static int compare(ContentItem a, ContentItem b) {
+        int res = a.sort_time.compare(b.sort_time);
+        if (res == 0) {
+            res = a.display_time.compare(b.display_time);
+        }
+        if (res == 0) {
+            res = a.seccondary_sort_indicator - b.seccondary_sort_indicator > 0 ? 1 : -1;
+        }
+        return res;
+    }
+}
+
+public class MessageItem : ContentItem {
+    public const string TYPE = "message";
+
+    public Message message;
+    public Conversation conversation;
+
+    public MessageItem(Message message, Conversation conversation, int id) {
+        base(id, TYPE, message.from, message.local_time, message.id + 0.0845, message.time, message.encryption, message.marked);
+        this.message = message;
+        this.conversation = conversation;
+
+        WeakRef weak_message = WeakRef(message);
+        message.notify["marked"].connect(() => {
+            Message? m = weak_message.get() as Message;
+            if (m == null) return;
+            mark = m.marked;
+        });
+    }
+}
+
+public class FileItem : ContentItem {
+    public const string TYPE = "file";
+
+    public FileTransfer file_transfer;
+    public Conversation conversation;
+
+    public FileItem(FileTransfer file_transfer, int id) {
+        Jid jid = file_transfer.direction == FileTransfer.DIRECTION_SENT ? file_transfer.account.bare_jid.with_resource(file_transfer.account.resourcepart) : file_transfer.counterpart;
+        base(id, TYPE, jid, file_transfer.local_time, file_transfer.id + 0.0845, file_transfer.time, file_transfer.encryption, file_to_message_state(file_transfer.state));
+
+        this.file_transfer = file_transfer;
+
+        file_transfer.notify["state"].connect_after(() => {
+            this.mark = file_to_message_state(file_transfer.state);
+        });
+    }
+
+    private static Entities.Message.Marked file_to_message_state(FileTransfer.State state) {
+        switch (state) {
+            case FileTransfer.State.IN_PROCESS:
+                return Entities.Message.Marked.UNSENT;
+            case FileTransfer.State.COMPLETE:
+                return Entities.Message.Marked.NONE;
+            case FileTransfer.State.NOT_STARTED:
+                return Entities.Message.Marked.UNSENT;
+            case FileTransfer.State.FAILED:
+                return Entities.Message.Marked.WONTSEND;
+        }
+        assert_not_reached();
+    }
+}
+
+}