chore: convert into a workspace

entrypoint/src/home_assistant/event/specific/state_changed.rs

@@ -0,0 +1,58 @@
+use pyo3::exceptions::PyValueError;
+use pyo3::prelude::*;
+
+use crate::home_assistant::{entity_id::EntityId, state_object::StateObject};
+
+#[derive(Debug, Clone)]
+pub struct Type;
+
+impl<'py> FromPyObject<'py> for Type {
+    fn extract_bound(ob: &Bound<'py, PyAny>) -> PyResult<Self> {
+        let s = ob.extract::<&str>()?;
+
+        if s == "state_changed" {
+            Ok(Type)
+        } else {
+            Err(PyValueError::new_err(format!(
+                "expected a string of value 'state_changed', but got {s}"
+            )))
+        }
+    }
+}
+
+#[derive(Debug, FromPyObject)]
+#[pyo3(from_item_all)]
+pub struct Data<
+    OldState,
+    OldAttributes,
+    OldStateContextEvent,
+    NewState,
+    NewAttributes,
+    NewStateContextEvent,
+> {
+    pub entity_id: EntityId,
+    pub old_state: Option<StateObject<OldState, OldAttributes, OldStateContextEvent>>,
+    pub new_state: Option<StateObject<NewState, NewAttributes, NewStateContextEvent>>,
+}
+
+/// A state changed event is fired when on state write the state is changed.
+pub type Event<
+    OldState,
+    OldAttributes,
+    OldStateContextEvent,
+    NewState,
+    NewAttributes,
+    NewStateContextEvent,
+    Context,
+> = super::super::event::Event<
+    Type,
+    Data<
+        OldState,
+        OldAttributes,
+        OldStateContextEvent,
+        NewState,
+        NewAttributes,
+        NewStateContextEvent,
+    >,
+    Context,
+>;