working exactly as i want, now making the login up and down to work properly well

client/src/tui/functions/login.rs

@@ -0,0 +1,38 @@
+// src/tui/functions/login.rs
+use crate::state::pages::auth::AuthState;
+use crate::state::canvas_state::CanvasState;
+
+pub async fn handle_move_up(
+    auth_state: &mut AuthState,
+) -> Result<String, Box<dyn std::error::Error>> {
+    if auth_state.current_field > 0 {
+        auth_state.current_field -= 1;
+    } else {
+        // If at first field (username), cycle to button selection
+        auth_state.current_field = 0;
+        auth_state.return_selected = false;
+    }
+    
+    // Reset cursor position for the field
+    auth_state.current_cursor_pos = auth_state.get_current_input().len();
+    
+    Ok("".to_string())
+}
+
+pub async fn handle_move_down(
+    auth_state: &mut AuthState,
+) -> Result<String, Box<dyn std::error::Error>> {
+    if auth_state.current_field < 1 {
+        // Moving down from username to password
+        auth_state.current_field += 1;
+        
+        // Reset cursor position for the new field
+        auth_state.current_cursor_pos = auth_state.get_current_input().len();
+    } else {
+        // Moving from password field to button selection
+        auth_state.return_selected = false;
+    }
+    
+    Ok("".to_string())
+}
+