diff --git a/model.py b/model.py
index 698c5b9..afc1282 100644
--- a/model.py
+++ b/model.py
@@ -7,33 +7,34 @@ import datetime
 
 class Model:
     def __init__(self, filename = "tehmodel.json"):
-        self.sockets = {}
+        self.sockets = {} # mapping: client -> socket
         self.filename = filename
-        self.sessions = None
+        self.model = None
         if os.path.isfile(filename):
             with open(filename) as f:
                 try:
-                    self.sessions = json.load(f)
+                    self.model = json.load(f)
                 except:
-                    self.sessions = {}
+                    self.model = {}
         else:
-            self.sessions = {}
+            self.model = {}
+        self.assert_model()
     
+    def assert_model(self):
+        if not "clients" in self.model:
+            self.model["clients"] = []
+        if not "sessions" in self.model:
+            self.model["sessions"] = []
+
     def handle_post(self, data):
         print("I have received P O S T data: " + str(data))
         print("let me tell everyone")
         for k, v in self.sockets.items():
             v.send_json({"message": "nudes"})
 
-        # handle post request data
-
-    def __enter__(self):
-        return self
-
-    def __exit__(self, exception_type, exception_value, traceback):
-        if not (exception_type or exception_value or traceback):
-            with open(self.filename, "w") as f:
-                json.dump(self.sessions, f)
+    def save(self):
+        with open(self.filename, "w") as f:
+            json.dump(self.model, f)
         if not os.path.isdir("backups"):
             try:
                 os.mkdir("backups")
@@ -41,25 +42,25 @@ class Model:
                 print("backups is a file, no directory. Please delete yourself")
         datestring = datetime.datetime.strftime(datetime.datetime.now(), "%Y-%m-%d-%H%M%S")
         with open(f"backups/{datestring}_{self.filename}", "w") as f:
-            json.dump(self.sessions, f)
+            json.dump(self.model, f)
 
     def exists_client(self, clientid: str) -> bool:
-        return clientid in self.sockets
+        return clientid in self.model["clients"]
 
-    def create_client(self, sessionid: str) -> str:
+    def create_client(self) -> str:
         clientname = base64.b32encode(bytearray(random.randint(0, 0xFF) for _ in range(10)))[:16].decode().lower()
-        self.sessions[sessionid]["players"].append(clientname)
+        newclient = {"id": clientname}
+        self.model["clients"].append(newclient)
         return sessionname
 
     def create_session(self) -> str:
         sessionname = base64.b32encode(bytearray(random.randint(0, 0xFF) for _ in range(10)))[:16].decode().lower()
-        self.sessions[sessionname] = {"players": []}
+        newsession = {"id": sessionname, "clients": []}
+        self.model["sessions"].append(newsession)
         return sessionname
 
     def subscribe(self, clientid, socket):
         self.sockets[clientid] = socket
-        # todo subscribe socket, match with id
-        
     
     def unsubscribe(self, socket):
         for k,v in self.sockets.items():
diff --git a/tehmodel.json b/tehmodel.json
deleted file mode 100644
index 463af97..0000000
--- a/tehmodel.json
+++ /dev/null
@@ -1 +0,0 @@
-{"bar": "foo", "foo": 3, "test": 4, "kso72uuzubg22om7": {}}
\ No newline at end of file