Routes was moved to self class

Dockerfile

@@ -4,6 +4,7 @@ RUN pip install websockets
 
 WORKDIR /beerlog-srv
 COPY beerlog-srv.py .
+COPY routes.py .
 COPY storage.py .
 
 ARG BEERLOG_PORT

beerlog-srv.py

@@ -5,84 +5,31 @@ import websockets
 import json
 import sys
 import os
-from storage import Storage
+from routes import Routes
+
+
+routes = Routes()
 
-CONNECTIONS = set()
-STORAGES = { "users": Storage("users") }
 
 class UserInfoProtocol(websockets.BasicAuthWebSocketServerProtocol):
     async def check_credentials(self, username, password):
-        all_users = storage("users").read()
-        self.user = all_users[username] if username in all_users else None
+        all_users = routes.users()
+        self.user = all_users.get(username, None)
         return self.user != None
 
-def storage(name):
-    if not name in STORAGES:
-        STORAGES[name] = Storage(name)
-    return STORAGES[name]
-
-def _get_entity(event):
-    return event.get("entity", None)
-
-def _get_data(event):
-    return event.get("data", {})
-
-async def add_entity(websocket, event):
-    name = _get_entity(event)
-    data = _get_data(event)
-    if name and data:
-        storage(name).create(data)
-        await broadcast(websocket, { "entity": name, "event": "created", "data": data })
-
-async def get_entity(websocket, event):
-    name = _get_entity(event) 
-    ts = _get_data(event).get("ts", 0)
-    data = storage(name).read(ts)
-    await websocket.send(json.dumps({ "entity": name, "event": "received", "data": data }))
-
-async def mod_entity(websocket, event):
-    name = _get_entity(event)
-    data = _get_data(event)
-    if name and data:
-        storage(name).update(data)
-        await broadcast(websocket, { "entity": name, "event": "modified", "data": data })
-
-async def del_entity(websocket, event):
-    name = _get_entity(event)
-    entity_id = _get_data(event).get("id", None)
-    if storage(name).delete(entity_id):
-        await broadcast(websocket, { "entity": name, "event": "deleted", "data": entity_id })
-
-async def describe(websocket, event):
-    connections = list(CONNECTIONS)
-    data = { c.user["id"]: connections.count(c) for c in connections }
-    await websocket.send(json.dumps({ "entity": "connections", "event": "described", "data": data }))
-
-async def broadcast(websocket, event):
-    websockets.broadcast(CONNECTIONS, json.dumps(event))
-
-COMMANDS = {
-        "add": add_entity,
-        "get": get_entity,
-        "mod": mod_entity,
-        "del": del_entity,
-        "describe": describe
-    }
 
 async def handle(websocket):
     try:
-        CONNECTIONS.add(websocket)
-        await broadcast(websocket, { "event": "connected", "entity": "users", "data": websocket.user})
+        await routes.add_connection(websocket)
 
         async for message in websocket:
             event = json.loads(message)
             print(event, file=sys.stderr)
-            handler = COMMANDS.get(event["action"], broadcast)
-            await handler(websocket, event)
+            await routes.call(event["action"], websocket, event)
 
     finally:
-        CONNECTIONS.remove(websocket)
-        await broadcast(websocket, { "event": "disconnected", "entity": "users", "data": websocket.user})
+        await routes.remove_connection(websocket)
+
 
 async def main():
     port = os.environ.get("BEERLOG_PORT", 8000)
@@ -91,5 +38,5 @@ async def main():
     async with websockets.serve(handle, host, port, create_protocol=UserInfoProtocol):
         await asyncio.Future()
 
-asyncio.run(main())
 
+asyncio.run(main())

routes.py

@@ -0,0 +1,80 @@
+import websockets
+import json
+
+from storage import Storage
+
+class Routes():
+    __connections = set()
+    __storages = {}
+
+    def __init__(self):
+        self.__commands = {
+                "add": self._add_entity,
+                "get": self._get_entity,
+                "mod": self._mod_entity,
+                "del": self._del_entity,
+                "describe": self._describe
+            }
+
+    def __storage(self, name):
+        if not name in self.__storages:
+            self.__storages[name] = Storage(name)
+        return self.__storages[name]
+
+    def __get_entity(self, event):
+        return event.get("entity", None)
+
+    def __get_data(self, event):
+        return event.get("data", {})
+
+    def __get_event(self, name, event, data):
+        return { "entity": name, "event": event, "data": data }
+
+    async def _add_entity(self, websocket, event):
+        name = self.__get_entity(event)
+        data = self.__get_data(event)
+        if name and data:
+            self.__storage(name).create(data)
+            await broadcast(websocket, self.__get_event(name, "created", data))
+
+    async def _get_entity(self, websocket, event):
+        name = self.__get_entity(event)
+        ts = self.__get_data(event).get("ts", 0)
+        data = self.__storage(name).read(ts)
+        await websocket.send(json.dumps(self.__get_event(name, "received", data )))
+
+    async def _mod_entity(self, websocket, event):
+        name = self.__get_entity(event)
+        data = self.__get_data(event)
+        if name and data:
+            self.__storage(name).update(data)
+            await broadcast(websocket, self.__get_event(name, "modified", data))
+
+    async def _del_entity(self, websocket, event):
+        name = self.__get_entity(event)
+        entity_id = self.__get_data(event).get("id", None)
+        if self.__storage(name).delete(entity_id):
+            await broadcast(websocket, self.__get_event(name, "deleted", entity_id ))
+
+    async def _describe(self, websocket, event):
+        connections = list(self.__connections)
+        data = { c.user["id"]: connections.count(c) for c in connections }
+        await websocket.send(json.dumps(self.__get_event("connections", "described", data)))
+
+    async def _broadcast(self, _, event):
+        websockets.broadcast(self.__connections, json.dumps(event))
+
+    async def add_connection(self, connection):
+        self.__connections.add(connection)
+        await self._broadcast(connection, self.__get_event("users", "connected", connection.user))
+
+    async def remove_connection(self, connection):
+        self.__connections.remove(connection)
+        await self._broadcast(connection, self.__get_event("users", "disconnected", connection.user))
+
+    async def call(self, command, websocket, event):
+        handler = self.__commands.get(command, self._broadcast)
+        await handler(websocket, event)
+
+    def users(self):
+        return self.__storage("users").read()