Implemented initial user interface

src/tunnel/tui.rs

@@ -0,0 +1,26 @@
+use std::ops::Deref;
+
+use ratatui::style::Stylize;
+use ratatui::text::Span;
+
+use super::{Tunnel, TunnelAccess};
+
+pub fn header() -> Vec<Span<'static>> {
+    vec!["Access".into(), "Port".into(), "Address".into()]
+}
+
+pub async fn to_row((address, tunnel): (&String, &Option<Tunnel>)) -> Vec<Span<'static>> {
+    let (access, port) = if let Some(tunnel) = tunnel {
+        let access = match tunnel.access.read().await.deref() {
+            TunnelAccess::Private(owner) => owner.clone().yellow(),
+            TunnelAccess::Public => "PUBLIC".green(),
+        };
+
+        (access, tunnel.port.to_string().into())
+    } else {
+        ("FAILED".red(), "".into())
+    };
+    let address = format!("http://{address}").into();
+
+    vec![access, port, address]
+}