created stages dir

apps/stages/stages.py

@@ -0,0 +1,36 @@
+from datetime import datetime
+from typing import Any
+
+from pydantic import BaseModel
+from pydantic import PrivateAttr
+from pydantic import field_serializer
+
+
+class EntityState(BaseModel, extra='allow'):
+    state: bool = True
+    color_temp_kelvin: int | None = None
+    rgb_color: list[int] | None = None
+    brightness: int | None = None
+
+    @field_serializer('state')
+    def convert_state(self, val: Any):
+        if val:
+            return 'on'
+        else:
+            return 'off'
+
+
+class Stage(BaseModel):
+    # start: Annotated[time, BeforeValidator(lambda v: parser(v).time())]
+    start: str
+    _start: datetime = PrivateAttr()
+    scene: dict[str, EntityState]
+
+    def assign_start(self, dt: datetime):
+        self._start = dt
+
+    def formatted_start(self, fmt: str) -> str:
+        return self._start.strftime(fmt)
+
+    def scene_json(self):
+        return self.model_dump(mode='json')['scene']