fix(roomid): Get direct message room ID from attribute

src/lib/driver.ts

@@ -344,9 +344,10 @@ export function getRoomName (id: string): Promise<string> {
 /**
  * Get ID for a DM room by its recipient's name.
  * Will create a DM (with the bot) if it doesn't exist already.
+ * @todo test why create resolves with object instead of simply ID
  */
 export function getDirectMessageRoomId (username: string): Promise<string> {
-  return cacheCall('createDirectMessage', username)
+  return cacheCall('createDirectMessage', username).then((DM) => DM.rid)
 }
 
 /** Join the bot into a room by its name or ID */
@@ -377,7 +378,7 @@ export function prepareMessage (content: string | IMessage, roomId?: string): Me
 export function sendMessageByRoomId (content: string | string[] | IMessage, roomId: string): Promise<any> {
   let messages: Message[] = []
   if (Array.isArray(content)) {
-    content.forEach((msg) => messages.push(prepareMessage(msg, roomId)))
+    content.forEach((text) => messages.push(prepareMessage(text, roomId)))
   } else {
     messages.push(prepareMessage(content))
   }
@@ -393,6 +394,13 @@ export function sendMessageByRoom (content: string | string[] | IMessage, room:
   return getRoomId(room).then((roomId) => sendMessageByRoomId(content, roomId))
 }
 
+/**
+ * Send a message to a user in a DM.
+ */
+export function sendDirectToUser (message: string | string[] | IMessage, username: string): Promise<any> {
+  return getDirectMessageRoomId(username).then((rid) => sendMessageByRoomId(message, rid))
+}
+
 /**
  * Send a prepared message object (with pre-defined room ID).
  * Usually prepared and called by sendMessageByRoomId or sendMessageByRoom.