feat(input-server): add InputServer<D: InputDevice> with protocol, mock + UART adapters, and tests

crates/servers/input-server/src/server.rs

@@ -0,0 +1,36 @@
+use server_framework::Server;
+
+use crate::input_device::InputDevice;
+use crate::protocol::{InputRequest, InputResponse};
+
+pub struct InputServer<D: InputDevice> {
+    device: D,
+}
+
+impl<D: InputDevice> InputServer<D> {
+    pub fn new(device: D) -> Self {
+        Self { device }
+    }
+
+    pub fn device(&self) -> &D {
+        &self.device
+    }
+}
+
+impl<D: InputDevice> Server for InputServer<D> {
+    type Request = InputRequest;
+    type Response = InputResponse;
+
+    fn handle(&mut self, request: InputRequest) -> InputResponse {
+        match request {
+            InputRequest::PollEvent => match self.device.poll() {
+                Some(event) => InputResponse::Event(event),
+                None => InputResponse::NoEvent,
+            },
+            InputRequest::WaitEvent => match self.device.poll() {
+                Some(event) => InputResponse::Event(event),
+                None => InputResponse::NoEvent,
+            },
+        }
+    }
+}