Switched to Echotron, added topics

db/methods.go

@@ -14,15 +14,36 @@ func (d *DB) ChatExists(ctx context.Context, chat Chat) bool {
 	return d.EntryExists(ctx, "chats", filter)
 }
 
+func (d *DB) GetChat(ctx context.Context, chatId int64) (Chat, error) {
+	filter := bson.D{primitive.E{Key: "id", Value: chatId}}
+	var result Chat
+	err := d.Database.Collection("chats").FindOne(ctx, filter).Decode(&result)
+	if err != nil {
+		Log("get chat error", err)
+		return Chat{}, err
+	}
+	return result, nil
+}
+
 func (d *DB) NewChat(ctx context.Context, chat Chat) error {
 	if d.ChatExists(ctx, chat) {
 		return errors.New("chat entry already exists")
 	}
 	err := d.NewEntry(ctx, "chats", chat)
 	if err != nil {
-		log.Fatal(err)
+		Log("new chat error", err)
 		return err
 	}
 	log.Printf("New chat added: %s (%d)\n", chat.Title, chat.Id)
 	return nil
 }
+
+func (d *DB) UpdateChat(ctx context.Context, chat Chat, updates bson.D) error {
+	filter := bson.D{primitive.E{Key: "id", Value: chat.Id}}
+	result, err := d.Database.Collection("chats").UpdateOne(ctx, filter, updates)
+	if err != nil {
+		Log("chat update error", err)
+	}
+	log.Printf("Chat updated: %v", result)
+	return err
+}

db/structs.go

@@ -1,8 +1,9 @@
 package db
 
 type Chat struct {
-	Id    int64
-	Title string
+	Id      int64
+	Title   string
+	TopicId int64 `bson:"topic_id"`
 }
 
 type User struct {