Test rendering with fork

cove-tui/src/ui.rs

@@ -0,0 +1,45 @@
+use std::collections::HashMap;
+use std::io::Stdout;
+use std::sync::Arc;
+
+use tokio::sync::Mutex;
+use tui::backend::CrosstermBackend;
+use tui::widgets::Paragraph;
+use tui::Terminal;
+
+use crate::room::Room;
+
+pub enum Overlay {
+    Error(String),
+    ChooseRoom(String),
+}
+
+#[derive(Default)]
+pub struct Ui {
+    rooms: HashMap<String, Arc<Mutex<Room>>>,
+    room: Option<Arc<Mutex<Room>>>,
+    overlay: Option<Overlay>,
+}
+
+impl Ui {
+    pub async fn render_to_terminal(
+        &mut self,
+        terminal: &mut Terminal<CrosstermBackend<Stdout>>,
+    ) -> anyhow::Result<()> {
+        terminal.autoresize()?;
+
+        let mut frame = terminal.get_frame();
+        frame.render_widget(Paragraph::new("Hello world!"), frame.size());
+
+        // Do a little dance to please the borrow checker
+        let cursor = frame.cursor();
+        drop(frame);
+        terminal.set_cursor_opt(cursor)?;
+
+        terminal.flush()?;
+        terminal.flush_backend()?;
+        terminal.swap_buffers();
+
+        Ok(())
+    }
+}