Extend room setup logic to invites also

Closes varia/bots#4.

LogBot/logbot.py

@@ -129,28 +129,37 @@ logbot @uptime: To check how long @logbot has been around
 @bots: To see who is around :)
 """
 
+    def _parse_room_name(self, room):
+        """Parse room name from entire address string."""
+        return str(re.match(r".*@", room).group()).replace("@", "")
+
+    def _setup_room(self, room):
+        """Create directories and database entries for a new room."""
+        room_name = self._parse_room_name(room)
+        room_path = os.path.join(self.output, room_name)
+        self.log.info(f"Processing setup logic for: {room_path}")
+
+        if room not in self.db.keys():
+            self.db[room] = {}
+            self.db[room]["messages"] = {}
+            self.db[room]["title"] = room
+            self.log.info(f"Added to the database: { room }")
+
+        if not os.path.exists(room_path):
+            os.mkdir(room_path)
+            shutil.copy("stylesheet.css", room_path)
+            self.log.info(f"Created a folder for: { room }")
+            self.log.info(f"Copied stylesheet.css to: { room }")
+
     def setup(self):
         self.log.info(f"Output folder is set to: { self.output }")
-
         for room in self.rooms:
+            self._setup_room(room)
 
-            roomname = str(re.match(r".*@", room).group()).replace("@", "")
-            room_path = os.path.join(self.output, roomname)
-            self.log.info(f"Processing setup logic for: {room_path}")
-
-            # Check if the room is in the database already
-            if not room in self.db.keys():
-                self.db[room] = {}
-                self.db[room]["messages"] = {}
-                self.db[room]["title"] = room
-                self.log.info(f"Added to the database: { room }")
-
-            # Check if the room has an output folder already
-            if not os.path.exists(room_path):
-                os.mkdir(room_path)
-                shutil.copy("stylesheet.css", room_path)
-                self.log.info(f"Created a folder for: { room }")
-                self.log.info(f"Copied stylesheet.css to: { room }")
+    def group_invite(self, message):
+        """Extend xbotlib invite response logic and do required room setup."""
+        super().group_invite(message)
+        self._setup_room(message.room)
 
     def group(self, message):