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

client/src/tui/functions/form.rs

@@ -78,3 +78,43 @@ pub async fn handle_action(
         _ => Err("Unknown form action".into())
     }
 }
+
+pub async fn handle_move_up(
+    form_state: &mut FormState,
+    ideal_cursor_column: &mut usize,
+) -> Result<String, Box<dyn std::error::Error>> {
+    // Change field first
+    if form_state.current_field == 0 {
+        form_state.current_field = form_state.fields.len() - 1;
+    } else {
+        form_state.current_field = form_state.current_field.saturating_sub(1);
+    }
+
+    // Get current input AFTER changing field
+    let current_input = form_state.get_current_input();
+    let max_cursor_pos = if !current_input.is_empty() {
+        current_input.len() - 1
+    } else {
+        0
+    };
+    form_state.current_cursor_pos = (*ideal_cursor_column).min(max_cursor_pos);
+    Ok("".to_string())
+}
+
+pub async fn handle_move_down(
+    form_state: &mut FormState,
+    ideal_cursor_column: &mut usize,
+) -> Result<String, Box<dyn std::error::Error>> {
+    // Change field first
+    form_state.current_field = (form_state.current_field + 1) % form_state.fields.len();
+
+    // Get current input AFTER changing field
+    let current_input = form_state.get_current_input();
+    let max_cursor_pos = if !current_input.is_empty() {
+        current_input.len() - 1
+    } else {
+        0
+    };
+    form_state.current_cursor_pos = (*ideal_cursor_column).min(max_cursor_pos);
+    Ok("".to_string())
+}

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())
+}
+