2 files changed, 46 insertions(+), 3 deletions(-)

M main.go
M storage.go

@@ 761,7 761,12 @@ func run() int {
 		if directChats, err := loadDirectChats(client.UserID); err == nil {
 			app.DirectChats = directChats
 		} else {
-			fmt.Fprintln(os.Stderr, "failed to direct chats: " + err.Error())
+			fmt.Fprintln(os.Stderr, "failed to load direct chats: " + err.Error())
+		}
+		if readReceipts, err := loadReadReceipts(client.UserID); err == nil {
+			app.ReadReceipts = readReceipts
+		} else {
+			fmt.Fprintln(os.Stderr, "failed to load read receipts: " + err.Error())
 		}
 	} else {
 		fmt.Fprintln(os.Stderr, "failed to load cache: " + err.Error())


@@ 772,11 777,15 @@ func run() int {
 	}
 	err := saveStorer(client.Store.(*mautrix.InMemoryStore), client.UserID)
 	if err != nil {
-		fatal(err.Error())
+		fatal("failed to cache: " + err.Error())
 	}
 	err = saveDirectChats(app.DirectChats, client.UserID)
 	if err != nil {
-		fatal(err.Error())
+		fmt.Fprintln(os.Stderr, "failed to cache direct chats: " + err.Error())
+	}
+	err = saveReadReceipts(app.ReadReceipts, client.UserID)
+	if err != nil {
+		fmt.Fprintln(os.Stderr, "failed to cache read receipts: " + err.Error())
 	}
 	return 0
 }

@@ 106,3 106,37 @@ func saveDirectChats(directChats map[id.RoomID]id.UserID, user id.UserID) error 
 	}
 	return os.WriteFile(filepath.Join(dir, "direct_chats.json"), data, 0600)
 }
+
+func loadReadReceipts(user id.UserID) (map[id.RoomID]id.EventID, error) {
+	dir, err := os.UserCacheDir()
+	if err != nil {
+		return nil, err
+	}
+	dir = filepath.Join(dir, "sup", string(user))
+
+	if _, err := os.Stat(dir); errors.Is(err, os.ErrNotExist) {
+		return nil, nil
+	}
+
+	data, err := os.ReadFile(filepath.Join(dir, "read_receipts.json"))
+	if err != nil {
+		return nil, err
+	}
+	var readReceipts map[id.RoomID]id.EventID
+	json.Unmarshal(data, &readReceipts)
+	return readReceipts, nil
+}
+
+func saveReadReceipts(readReceipts map[id.RoomID]id.EventID, user id.UserID) error {
+	dir, err := os.UserCacheDir()
+	if err != nil {
+		return err
+	}
+	dir = filepath.Join(dir, "sup", string(user))
+
+	data, err := json.Marshal(readReceipts)
+	if err != nil {
+		return err
+	}
+	return os.WriteFile(filepath.Join(dir, "read_receipts.json"), data, 0600)
+}