chore: extract python_utils and home-assistant to their own crates

home-assistant/src/event/context/id.rs

@@ -0,0 +1,38 @@
+use std::convert::Infallible;
+
+use pyo3::{prelude::*, types::PyString};
+use smol_str::SmolStr;
+use ulid::Ulid;
+
+#[derive(Debug, Clone)]
+pub enum Id {
+    Ulid(Ulid),
+    Other(SmolStr),
+}
+
+impl<'py> FromPyObject<'py> for Id {
+    fn extract_bound(ob: &Bound<'py, PyAny>) -> PyResult<Self> {
+        let s = ob.extract::<String>()?;
+
+        if let Ok(ulid) = s.parse() {
+            Ok(Id::Ulid(ulid))
+        } else {
+            Ok(Id::Other(s.into()))
+        }
+    }
+}
+
+impl<'py> IntoPyObject<'py> for Id {
+    type Target = PyString;
+
+    type Output = Bound<'py, Self::Target>;
+
+    type Error = Infallible;
+
+    fn into_pyobject(self, py: Python<'py>) -> Result<Self::Output, Self::Error> {
+        match self {
+            Id::Ulid(ulid) => ulid.to_string().into_pyobject(py),
+            Id::Other(id) => id.as_str().into_pyobject(py),
+        }
+    }
+}