Fix a bunch of config issues

lib/config.py

@@ -48,11 +48,11 @@ def config_save():
 
 
 def config_get(key: str, guild: Optional[int] = None):
-    guild = str(guild)
-    if guild in config:
-        guild = config[guild]
-        if key in guild:
-            return guild[key]
+    if guild is None:
+        return config[key]
+    guild = _get_guild_config(guild)
+    if key in guild:
+        return guild[key]
     return config[key]
 
 
@@ -61,7 +61,7 @@ def config_set(key: str, value, guild: Optional[int] = None) -> str:
         return _config_set_in_scope(config, key, value, type(config[key]))
     else:
         if config_meta[key][0]:
-            return _config_set_in_scope(config[str(guild)], key, value, type(config[key]))
+            return _config_set_in_scope(_get_guild_config(guild), key, value, type(config[key]))
         else:
             return 'This config can only be changed globally by the bot owner!'
 
@@ -70,6 +70,12 @@ def config_get_descriptions() -> iter:
     return map(lambda entry: (entry[0], entry[1]), config_meta.items())
 
 
+def _get_guild_config(guild: int) -> dict:
+    config.setdefault('guilds', {})
+    config['guilds'].setdefault(str(guild), {})
+    return config['guilds'][str(guild)]
+
+
 def _config_set_in_scope(scope: dict, key: str, value, cfg_type: type) -> str:
     success = False
     try: