sending rankings and highscores

README.md

@@ -270,7 +270,10 @@ response:
 {
     "type": "elo_update",
     "data": {
-        "elo": <elo_value>
+        "elo": <elo_value>,
+        "rank": <rank>,
+        "top_names": <list of top 100 names>,
+        "top_elos": <list of top 100 elos>
     }
 }
 ```

connection_handler.py

@@ -620,10 +620,16 @@ class ConnectionHandler(object):
         }))
 
     async def send_elo(self, conn):
+
+        top_names, top_elos = self.user_manager.get_highscores(100,0)
+
         await conn.send(json.dumps({
             'type': 'elo_update',
             'data': {
-                'elo': self.user_manager.get_elo(conn.user_name)
+                'elo': self.user_manager.get_elo(conn.user_name),
+                'rank': self.user_manager.get_rank_for_user(conn.user_name),
+                'top_names': top_names,
+                'top_elos': top_elos
             }
         }))
 

user_manager.py

@@ -73,6 +73,22 @@ class UserManager(object):
 
         return None
     
+    def get_highscores(self, n, list_offset):
+        query = "SELECT name, elo FROM users ORDER BY elo DESC LIMIT %s OFFSET %s"
+        q = DatabaseConnection.global_single_query(query, (n, list_offset))
+        names = []
+        elos = []
+        for entry in q:
+            names.append(entry['name'])
+            elos.append(int(entry['elo']))
+        
+        return names, elos
+    
+    def get_rank_for_user(self, user_name):
+        query = "SELECT Count(*)+1 as rank  from users where elo >(SELECT elo from users WHERE name=%s)"
+        q = DatabaseConnection.global_single_query(query, (user_name))
+        return int(q[0]['rank'])
+
     def add_friend_to_user(self, user_name, friend_name):
         if len(self.get_user(friend_name)) > 0:
             query = "INSERT INTO friends (user, friend) VALUES ( %s, %s)"