moving back to tui nonmode functions for now

client/src/tui/functions/common/login.rs

@@ -0,0 +1,62 @@
+// src/tui/functions/common/login.rs
+use crate::services::auth::AuthClient;
+use crate::state::pages::auth::AuthState;
+use crate::state::state::AppState;
+use crate::state::canvas_state::CanvasState;
+
+/// Attempts to log the user in using the provided credentials via gRPC.
+/// Updates AuthState and AppState on success or failure.
+pub async fn save(
+    auth_state: &mut AuthState,
+    auth_client: &mut AuthClient,
+    app_state: &mut AppState,
+) -> Result<String, Box<dyn std::error::Error>> {
+    let identifier = auth_state.username.clone();
+    let password = auth_state.password.clone();
+
+    // Call the gRPC login method
+    match auth_client.login(identifier, password).await {
+        Ok(response) => {
+            // Store authentication details on success
+            auth_state.auth_token = Some(response.access_token);
+            auth_state.user_id = Some(response.user_id);
+            auth_state.role = Some(response.role);
+            auth_state.error_message = None;
+            auth_state.set_has_unsaved_changes(false); // Mark as "saved"
+
+            // Update app state to transition from login to the main form view
+            app_state.ui.show_login = false;
+            app_state.ui.show_form = true; // Assuming form is the next view
+
+            Ok("Login successful!".to_string())
+        }
+        Err(e) => {
+            // Store error message on failure
+            let error_message = format!("Login failed: {}", e);
+            auth_state.error_message = Some(error_message.clone());
+            // Keep unsaved changes true if login fails, allowing retry/revert
+            auth_state.set_has_unsaved_changes(true);
+            Ok(error_message) // Return error message to display
+        }
+    }
+}
+
+/// Reverts the login form fields to empty and returns to the previous screen (Intro).
+/// This function is now named 'revert' to match the 'form' counterpart.
+pub async fn revert(
+    auth_state: &mut AuthState,
+    app_state: &mut AppState,
+) -> String {
+    // Clear the input fields
+    auth_state.username.clear();
+    auth_state.password.clear();
+    auth_state.error_message = None; // Clear any previous error
+    auth_state.set_has_unsaved_changes(false); // Fields are cleared, no unsaved changes
+
+    // Update app state to hide login and show the previous screen (Intro)
+    app_state.ui.show_login = false;
+    app_state.ui.show_intro = true; // Assuming Intro is the screen before login
+
+    "Login reverted".to_string()
+}
+