started using ratatui

src/app.rs

@@ -0,0 +1,29 @@
+use sqlite::Connection;
+
+pub enum CurrentScreen {
+    Main,
+    Exiting,
+}
+
+pub struct App {
+    pub current_screen: CurrentScreen,
+    connection: Connection,
+    exit: bool,
+}
+
+impl App {
+    pub fn new() -> App {
+        let connection = match Connection::open("ft_rs.db") {
+            Ok(con) => con,
+            Err(e) => {
+                eprintln!("Error opening database: {}", e);
+                panic!("stopping");
+            }
+        };
+        return App {
+            current_screen: CurrentScreen::Main,
+            connection: connection,
+            exit: false,
+        };
+    }
+}