Pull out the config and history classes

history.py

@@ -0,0 +1,56 @@
+"""Store matching history"""
+import os
+from schema import Schema, And, Use, Optional
+import matching
+
+FILE = "history.json"
+
+
+class History():
+    def __init__(self, data: dict):
+        self.__dict__ = data
+
+    @property
+    def groups(self) -> list[dict]:
+        return self.__dict__["groups"]
+
+    @property
+    def matchees(self) -> dict:
+        return self.__dict__["matchees"]
+
+    def save(self) -> None:
+        """Save out the history"""
+        matching.save(FILE, self.__dict__)
+
+
+def load() -> History:
+    """Load the history and validate it"""
+    history = matching.load(FILE) if os.path.isfile(FILE) else {
+        "groups": [],
+        "matchees": {}
+    }
+    Schema(
+        {
+            Optional("groups"): [
+                {
+                    "ts": And(Use(str)),
+                    "matchees": [
+                        And(Use(int))
+                    ]
+                }
+            ],
+            Optional("matchees"): {
+                Optional(str): {
+                    "matches": [
+                        {
+                            "ts": And(Use(str)),
+                            "id": And(Use(int)),
+                        }
+                    ]
+                }
+
+            }
+        }
+    ).validate(history)
+
+    return History(history)