replace argparse.Namespace plumbing with typed command inputs

chromy/command_inputs.py

@@ -0,0 +1,52 @@
+from __future__ import annotations
+
+from dataclasses import dataclass
+
+
+@dataclass(frozen=True, slots=True)
+class ListCollectionsInput:
+    pass
+
+
+@dataclass(frozen=True, slots=True)
+class CreateCollectionInput:
+    collection: str
+
+
+@dataclass(frozen=True, slots=True)
+class DeleteCollectionInput:
+    collection: str
+
+
+@dataclass(frozen=True, slots=True)
+class CountCollectionInput:
+    collection: str
+
+
+@dataclass(frozen=True, slots=True)
+class AddDataInput:
+    collection: str
+    file: str
+
+
+@dataclass(frozen=True, slots=True)
+class QueryInput:
+    collection: str
+    query_text: str
+
+
+@dataclass(frozen=True, slots=True)
+class DeleteRecordsInput:
+    collection: str
+    where: str
+
+
+CommandInput = (
+    ListCollectionsInput
+    | CreateCollectionInput
+    | DeleteCollectionInput
+    | CountCollectionInput
+    | AddDataInput
+    | QueryInput
+    | DeleteRecordsInput
+)