Add cache for file transfers

4 files changed, 68 insertions, 23 deletions

diff --git a/libdino/src/application.vala b/libdino/src/application.vala
index 80af3d3b..c1fd7e39 100644
--- a/libdino/src/application.vala
+++ b/libdino/src/application.vala
@@ -46,6 +46,7 @@ public interface Application : GLib.Application {
         Register.start(stream_interactor, db);
         EntityInfo.start(stream_interactor, db);
         MessageCorrection.start(stream_interactor, db);
+        FileTransferStorage.start(stream_interactor, db);
 
         create_actions();
 
diff --git a/libdino/src/service/content_item_store.vala b/libdino/src/service/content_item_store.vala
index a6d79267..2de804a1 100644
--- a/libdino/src/service/content_item_store.vala
+++ b/libdino/src/service/content_item_store.vala
@@ -56,27 +56,10 @@ public class ContentItemStore : StreamInteractionModule, Object {
                     }
                     break;
                 case 2:
-                    RowOption row_option = db.file_transfer.select().with(db.file_transfer.id, "=", foreign_id).row();
-                    if (row_option.is_present()) {
-                        try {
-                            string storage_dir = FileManager.get_storage_dir();
-                            FileTransfer file_transfer = new FileTransfer.from_row(db, row_option.inner, storage_dir);
-                            if (conversation.type_.is_muc_semantic()) {
-                                try {
-                                    // resourcepart wasn't set before, so we pick nickname instead (which isn't accurate if nickname is changed)
-                                    file_transfer.ourpart = conversation.counterpart.with_resource(file_transfer.ourpart.resourcepart ?? conversation.nickname);
-                                } catch (InvalidJidError e) {
-                                    warning("Failed setting file transfer Jid: %s", e.message);
-                                }
-                            }
-                            Message? message = null;
-                            if (file_transfer.provider == 0 && file_transfer.info != null) {
-                                message = stream_interactor.get_module(MessageStorage.IDENTITY).get_message_by_id(int.parse(file_transfer.info), conversation);
-                            }
-                            items.add(new FileItem(file_transfer, conversation, row[db.content_item.id], message));
-                        } catch (InvalidJidError e) {
-                            warning("Ignoring file transfer with invalid Jid: %s", e.message);
-                        }
+                    FileTransfer? file_transfer = stream_interactor.get_module(FileTransferStorage.IDENTITY).get_call_by_id(foreign_id);
+                    if (file_transfer != null) {
+                        var file_item = new FileItem(file_transfer, conversation, row[db.content_item.id]);
+                        items.add(file_item);
                     }
                     break;
             }
diff --git a/libdino/src/service/file_manager.vala b/libdino/src/service/file_manager.vala
index f3256601..19d51b44 100644
--- a/libdino/src/service/file_manager.vala
+++ b/libdino/src/service/file_manager.vala
@@ -69,7 +69,7 @@ public class FileManager : StreamInteractionModule, Object {
 
             yield save_file(file_transfer);
 
-            file_transfer.persist(db);
+            stream_interactor.get_module(FileTransferStorage.IDENTITY).add_file(file_transfer);
             conversation.last_active = file_transfer.time;
             received_file(file_transfer, conversation);
         } catch (Error e) {
@@ -281,7 +281,7 @@ public class FileManager : StreamInteractionModule, Object {
             }
         }
 
-        file_transfer.persist(db);
+        stream_interactor.get_module(FileTransferStorage.IDENTITY).add_file(file_transfer);
 
         if (is_sender_trustworthy(file_transfer, conversation)) {
             try {
diff --git a/libdino/src/service/file_transfer_storage.vala b/libdino/src/service/file_transfer_storage.vala
new file mode 100644
index 00000000..b4876c34
--- /dev/null
+++ b/libdino/src/service/file_transfer_storage.vala
@@ -0,0 +1,61 @@
+using Xmpp;
+using Gee;
+using Qlite;
+
+using Dino.Entities;
+
+namespace Dino {
+
+    public class FileTransferStorage : StreamInteractionModule, Object {
+        public static ModuleIdentity<FileTransferStorage> IDENTITY = new ModuleIdentity<FileTransferStorage>("file_store");
+        public string id { get { return IDENTITY.id; } }
+
+        private StreamInteractor stream_interactor;
+        private Database db;
+
+        private WeakMap<int, FileTransfer> files_by_db_id = new WeakMap<int, FileTransfer>();
+
+        public static void start(StreamInteractor stream_interactor, Database db) {
+            FileTransferStorage m = new FileTransferStorage(stream_interactor, db);
+            stream_interactor.add_module(m);
+        }
+
+        private FileTransferStorage(StreamInteractor stream_interactor, Database db) {
+            this.stream_interactor = stream_interactor;
+            this.db = db;
+        }
+
+        public void add_file(FileTransfer file_transfer) {
+            file_transfer.persist(db);
+            cache_call(file_transfer);
+        }
+
+        public FileTransfer? get_call_by_id(int id) {
+            FileTransfer? file_transfer = files_by_db_id[id];
+            if (file_transfer != null) {
+                return file_transfer;
+            }
+
+            RowOption row_option = db.file_transfer.select().with(db.file_transfer.id, "=", id).row();
+
+            return create_call_from_row_opt(row_option);
+        }
+
+        private FileTransfer? create_call_from_row_opt(RowOption row_opt) {
+            if (!row_opt.is_present()) return null;
+
+            try {
+                FileTransfer file_transfer = new FileTransfer.from_row(db, row_opt.inner, FileManager.get_storage_dir());
+                cache_call(file_transfer);
+                return file_transfer;
+            } catch (InvalidJidError e) {
+                warning("Got file transfer with invalid Jid: %s", e.message);
+            }
+            return null;
+        }
+
+        private void cache_call(FileTransfer file_transfer) {
+            files_by_db_id[file_transfer.id] = file_transfer;
+        }
+    }
+}
\ No newline at end of file