Pull out the config and history classes

config.py

@@ -1,9 +1,34 @@
 """Very simple config loading library"""
-import json
+from schema import Schema, And, Use
+import matching
 
 CONFIG = "config.json"
 
 
-def load() -> dict:
-    with open(CONFIG) as f:
-        return json.load(f)
+class Config():
+    def __init__(self, data: dict):
+        self.__dict__ = data
+
+    @property
+    def token(self) -> str:
+        return self.__dict__["token"]
+
+    @property
+    def owners(self) -> list[int]:
+        return self.__dict__["owners"]
+
+
+def load() -> Config:
+    """Load the config and validate it"""
+    config = matching.load(CONFIG)
+    Schema(
+        {
+            # Discord bot token
+            "token": And(Use(str)),
+
+            # ids of owners authorised to use owner-only commands
+            "owners": And(Use(list[int])),
+        }
+    ).validate(config)
+
+    return Config(config)