krata: rework into daemon / controller structure

daemon/src/handlers/list.rs

@@ -0,0 +1,37 @@
+use anyhow::Result;
+use krata::{
+    control::{GuestInfo, ListResponse, Request, Response},
+    stream::ConnectionStreams,
+};
+
+use crate::{listen::DaemonRequestHandler, runtime::Runtime};
+
+pub struct ListRequestHandler {}
+
+impl Default for ListRequestHandler {
+    fn default() -> Self {
+        Self::new()
+    }
+}
+
+impl ListRequestHandler {
+    pub fn new() -> Self {
+        Self {}
+    }
+}
+
+#[async_trait::async_trait]
+impl DaemonRequestHandler for ListRequestHandler {
+    fn accepts(&self, request: &Request) -> bool {
+        matches!(request, Request::List(_))
+    }
+
+    async fn handle(&self, _: ConnectionStreams, runtime: Runtime, _: Request) -> Result<Response> {
+        let guests = runtime.list().await?;
+        let guests = guests
+            .into_iter()
+            .map(GuestInfo::from)
+            .collect::<Vec<GuestInfo>>();
+        Ok(Response::List(ListResponse { guests }))
+    }
+}