🎨 Isolate infra and ui components

The src/base.rs is still to be reworked.

src/ui/components/chats_window/interface.rs

@@ -0,0 +1,39 @@
+use std::cell::RefCell;
+
+use matrix_sdk::ruma::OwnedRoomId;
+use tokio::sync::broadcast::error::SendError;
+use tokio::sync::broadcast::{channel, Receiver, Sender};
+
+#[derive(Clone)]
+pub enum Tasks {
+    ToggleRoom(OwnedRoomId),
+}
+
+pub struct Interface {
+    sender: Sender<Tasks>,
+    receiver: RefCell<Receiver<Tasks>>,
+}
+
+impl Interface {
+    pub fn new() -> Self {
+        let (sender, receiver) = channel::<Tasks>(32);
+        Self {
+            sender,
+            receiver: RefCell::new(receiver),
+        }
+    }
+
+    pub(super) fn receiver(&self) -> &RefCell<Receiver<Tasks>> {
+        &self.receiver
+    }
+
+    pub fn toggle_room(&self, room_id: OwnedRoomId) -> Result<usize, SendError<Tasks>> {
+        self.sender.send(Tasks::ToggleRoom(room_id))
+    }
+}
+
+impl Default for Interface {
+    fn default() -> Self {
+        Self::new()
+    }
+}