Add error page and and re-direct user fetch errors

src/index.tsx

@@ -14,7 +14,7 @@ import '@zer0-os/zos-component-library/dist/index.css';
 import './index.scss';
 import { Invite } from './invite';
 import { ResetPassword } from './reset-password';
-import { LoginPage } from './pages';
+import { LoginPage, ErrorPage } from './pages';
 import { getHistory } from './lib/browser';
 import { ElectronTitlebar } from './components/electron-titlebar';
 import { desktopInit } from './lib/desktop';
@@ -50,6 +50,7 @@ root.render(
                   <Route path='/get-access' exact component={Invite} />
                   <Route path='/login' exact component={LoginPage} />
                   <Route path='/reset-password' exact component={ResetPassword} />
+                  <Route path='/error' exact component={ErrorPage} />
                   <Route component={App} />
                 </Switch>
               </RainbowKitConnect>

src/pages/error/error-component.tsx

@@ -0,0 +1,33 @@
+import React from 'react';
+
+import { ThemeEngine, Themes } from '@zero-tech/zui/components/ThemeEngine';
+import { Button } from '@zero-tech/zui/components';
+import ZeroLogo from '../../zero-logo.svg?react';
+
+import { bemClassName } from '../../lib/bem';
+import './error.scss';
+
+const cn = bemClassName('error-page');
+
+interface ErrorComponentProperties {
+  onRetry: () => void;
+}
+
+export const ErrorComponent = ({ onRetry }: ErrorComponentProperties) => {
+  return (
+    <>
+      <ThemeEngine theme={Themes.Dark} />
+      <div {...cn('')}>
+        <main {...cn('content')}>
+          <div {...cn('logo-container')}>
+            <ZeroLogo />
+          </div>
+          <div {...cn('message-container')}>
+            <h3 {...cn('message')}>There was an error loading ZERO, please try again.</h3>
+            <Button onPress={onRetry}>Try Again</Button>
+          </div>
+        </main>
+      </div>
+    </>
+  );
+};

src/pages/error/error-container.tsx

@@ -0,0 +1,11 @@
+import { ErrorComponent } from './error-component';
+
+export const ErrorPage = () => {
+  const handleRetry = () => {
+    window.location.href = '/';
+  };
+
+  const error = 'There was an error loading ZERO, please try again.';
+
+  return <ErrorComponent onRetry={handleRetry} error={error} />;
+};

src/pages/error/error.scss

@@ -0,0 +1,54 @@
+@use '~@zero-tech/zui/styles/theme' as theme;
+
+@import '../../background';
+@import '../../glass';
+
+.error-page {
+  @include root-background;
+
+  position: absolute;
+  overflow-y: auto;
+  overflow-x: hidden;
+  width: 100vw;
+  height: 100vh;
+  top: 0;
+  left: 0;
+  z-index: 10;
+
+  &__content {
+    display: flex;
+    flex-direction: column;
+    align-items: center;
+    justify-content: center;
+    width: 100%;
+    height: 100%;
+    padding: 24px 0;
+    box-sizing: border-box;
+  }
+
+  &__logo-container {
+    padding-left: 8px;
+    margin-bottom: 76px;
+    mix-blend-mode: screen;
+  }
+
+  &__message-container {
+    @include glass-shadow-and-blur;
+    display: flex;
+    flex-direction: column;
+    align-items: center;
+    gap: 24px;
+    padding: 32px;
+    background: rgba(11, 7, 7, 0.75);
+    border-radius: 8px;
+  }
+
+  &__message {
+    @include glass-text-primary-color;
+    text-align: center;
+    font-weight: 600;
+    font-size: 18px;
+    line-height: 22px;
+    margin: 0;
+  }
+}

src/pages/error/index.ts

@@ -0,0 +1 @@
+export { ErrorPage } from './error-container';

src/pages/index.ts

@@ -1 +1,2 @@
 export * from './login';
+export * from './error';

src/store/authentication/api.ts

@@ -23,11 +23,12 @@ export async function fetchCurrentUser(): Promise<User> {
   try {
     const response = await get('/api/users/current');
     return response.body;
-  } catch (error) {
-    console.log(error);
+  } catch (error: any) {
+    if (error?.response?.status === 401) {
+      return null;
+    }
+    throw error;
   }
-
-  return null;
 }
 
 export async function clearSession(): Promise<AuthorizationResponse> {

src/store/authentication/saga.test.ts

@@ -180,8 +180,8 @@ describe('terminate', () => {
 });
 
 describe(getCurrentUser, () => {
-  it('sets the user state', async () => {
-    const { storeState } = await expectSaga(getCurrentUser)
+  it('sets the user state and returns success', async () => {
+    const { storeState, returnValue } = await expectSaga(getCurrentUser)
       .provide([
         stubResponse(call(fetchCurrentUser), { stub: 'user-data' }),
         ...successResponses(),
@@ -192,14 +192,23 @@ describe(getCurrentUser, () => {
     expect(storeState).toMatchObject({
       user: { data: { stub: 'user-data' } },
     });
+    expect(returnValue).toEqual({ success: true });
   });
 
-  it('returns false if fetching the user fails. I.E., the user is not logged in.', async () => {
+  it('returns unauthenticated error when no user is found', async () => {
+    const { returnValue } = await expectSaga(getCurrentUser)
+      .provide([[matchers.call.fn(fetchCurrentUser), null]])
+      .run();
+
+    expect(returnValue).toEqual({ success: false, error: 'unauthenticated' });
+  });
+
+  it('returns critical error if fetching the user fails with an error', async () => {
     const { returnValue } = await expectSaga(getCurrentUser)
       .provide([[matchers.call.fn(fetchCurrentUser), throwError(new Error('fetch user error'))]])
       .run();
 
-    expect(returnValue).toEqual(false);
+    expect(returnValue).toEqual({ success: false, error: 'critical' });
   });
 
   function successResponses() {

src/store/authentication/saga.ts

@@ -66,13 +66,13 @@ export function* getCurrentUser() {
   try {
     const user = yield call(fetchCurrentUser);
     if (!user) {
-      return false;
+      return { success: false, error: 'unauthenticated' };
     }
 
     yield completeUserLogin(user);
-    return true;
+    return { success: true };
   } catch (e) {
-    return false;
+    return { success: false, error: 'critical' };
   }
 }
 

src/store/page-load/saga.test.ts

@@ -24,7 +24,7 @@ describe('page-load saga', () => {
   function subject(...args: Parameters<typeof expectSaga>) {
     return expectSaga(...args).provide([
       [call(getHistory), history],
-      [call(getCurrentUser), true],
+      [call(getCurrentUser), { success: true }],
       [call(getNavigator), stubNavigator()],
       [spawn(redirectOnUserLogin), null],
     ]);
@@ -62,7 +62,7 @@ describe('page-load saga', () => {
       storeState: { pageload },
     } = await subject(saga)
       .withReducer(rootReducer, initialState as any)
-      .provide([[call(getCurrentUser), false]])
+      .provide([[call(getCurrentUser), { success: false, error: 'unauthenticated' }]])
       .run();
 
     expect(pageload.isComplete).toBe(true);
@@ -74,18 +74,31 @@ describe('page-load saga', () => {
 
     history = new StubHistory('/');
     const { storeState } = await subject(saga)
-      .provide([[call(getCurrentUser), false]])
+      .provide([[call(getCurrentUser), { success: false, error: 'unauthenticated' }]])
       .withReducer(rootReducer, initialState as any)
       .run();
 
     expect(storeState.pageload.isComplete).toBe(true);
     expect(history.replace).toHaveBeenCalledWith({ pathname: '/login' });
   });
 
+  it('redirects to error page on critical error', async () => {
+    const initialState = { pageload: { isComplete: false } };
+
+    history = new StubHistory('/');
+    const { storeState } = await subject(saga)
+      .provide([[call(getCurrentUser), { success: false, error: 'critical' }]])
+      .withReducer(rootReducer, initialState as any)
+      .run();
+
+    expect(storeState.pageload.isComplete).toBe(true);
+    expect(history.replace).toHaveBeenCalledWith({ pathname: '/error' });
+  });
+
   it('saves the entry path when redirecting to the login page', async () => {
     history = new StubHistory('/some/path');
     const { storeState } = await subject(saga)
-      .provide([[call(getCurrentUser), false]])
+      .provide([[call(getCurrentUser), { success: false, error: 'unauthenticated' }]])
       .withReducer(rootReducer)
       .run();
 
@@ -110,7 +123,7 @@ describe('page-load saga', () => {
     history = new StubHistory('/reset-password');
     const { storeState: resetPasswordStoreState } = await subject(saga)
       .withReducer(rootReducer, initialState as any)
-      .provide([[call(getCurrentUser), false]])
+      .provide([[call(getCurrentUser), { success: false, error: 'unauthenticated' }]])
       .run();
 
     expect(resetPasswordStoreState.pageload.isComplete).toBe(true);

src/store/page-load/saga.ts

@@ -21,12 +21,14 @@ export function* saga() {
     return;
   }
 
-  const success = yield call(getCurrentUser);
-  if (success) {
+  const result = yield call(getCurrentUser);
+  if (result.success) {
     yield handleAuthenticatedUser(history);
-  } else {
+  } else if (result.error === 'unauthenticated') {
     yield handleUnauthenticatedUser(history);
     yield call(setMobileAppDownloadVisibility, history);
+  } else {
+    yield handleCriticalError(history);
   }
 
   yield put(setIsComplete(true));
@@ -52,6 +54,10 @@ function* handleUnauthenticatedUser(history) {
   yield history.replace({ pathname: '/login' });
 }
 
+function* handleCriticalError(history) {
+  yield history.replace({ pathname: '/error' });
+}
+
 const MOBILE_APP_DOWNLOAD_PATHS = [
   '/get-access',
   '/login',