Move all remaining state into the single store, woot!

kmk/firmware.py

@@ -1,5 +1,6 @@
 import logging
 
+from kmk.common.event_defs import init_firmware
 from kmk.common.internal_state import ReduxStore, kmk_reducer
 from kmk.common.keymap import Keymap
 
@@ -14,10 +15,31 @@ class Firmware:
         self, keymap, row_pins, col_pins, diode_orientation,
         log_level=logging.NOTSET,
     ):
-        self.raw_keymap = keymap
-        self.keymap = Keymap(keymap)
-        self.matrix = MatrixScanner(col_pins, row_pins, diode_orientation)
+        self.cached_state = None
         self.store = ReduxStore(kmk_reducer, log_level=log_level)
+        self.store.subscribe(
+            lambda state, action: self._subscription(state, action),
+        )
+        self.store.dispatch(init_firmware(
+            keymap=keymap,
+            row_pins=row_pins,
+            col_pins=col_pins,
+            diode_orientation=diode_orientation,
+        ))
+
+    def _subscription(self, state, action):
+        if self.cached_state is None or self.cached_state.keymap != state.keymap:
+            self.keymap = Keymap(state.keymap)
+
+        if self.cached_state is None or any(
+            getattr(self.cached_state, k) != getattr(state, k)
+            for k in state.__dict__.keys()
+        ):
+            self.matrix = MatrixScanner(
+                state.col_pins,
+                state.row_pins,
+                state.diode_orientation,
+            )
 
     def go(self):
         while True: