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reactbin/specs/005-ui-polish/quickstart.md
agatha 9246f75fdd Feat: Polish Angular UI with cohesive design system
Introduces a shared CSS custom property token layer and applies it
across all five views (library, upload, detail, login, app shell).
Each view now has intentional loading, empty, and error states.

- styles.css: 13 design tokens on :root; shimmer skeleton animation
- Library: 150ms-debounced skeleton loading, empty state with /upload
  link, error card with retry, card hover lift, broken-image fallback
- Upload: token-styled drop-zone, Uploading… spinner, 4s success
  banner, distinct validation vs. network error messages
- Detail: image skeleton, network error card (separate from 404
  not-found card), Owner actions panel, danger tag error styling,
  broken-image fallback
- Login: vertically centred surface card, danger field/server errors,
  Signing in… disabled button
- App shell: 48px fixed header, app name left, sign-out right, no
  reflow on auth state change
- All 24 ESLint errors resolved (including pre-existing auth spec
  issues); ng build and ng lint pass clean

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
2026-05-03 20:03:56 +00:00

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Quickstart: UI Polish Visual Acceptance Scenarios

Use this guide to manually verify each milestone after implementation. Run docker compose up before starting. Open the browser at http://localhost:4200.


M1 — Design Token Layer

Goal: Tokens exist; visual output is identical to before.

  1. Open the library, upload, detail, and login pages.
  2. Open browser DevTools → Elements → <html> or <body>.
  3. Confirm --bg, --surface, --accent, --danger etc. are visible in computed styles.
  4. Confirm no visible change in any view compared to before M1.

M2 — Library View

Loading skeleton

  1. Open DevTools → Network → set throttle to "Slow 3G".
  2. Hard-refresh the library page.
  3. Expect: A grid of grey shimmer cards appears immediately; no blank white space; no layout jump when real images load in.

Empty state

  1. Ensure no images are uploaded (or use a fresh test database).
  2. Open the library.
  3. Expect: A centred empty-state panel with explanatory text and a prominent "Upload your first image" link. Clicking the link navigates to /upload.

Error state

  1. Stop the API container (docker compose stop api).
  2. Hard-refresh the library.
  3. Expect: An error card with a plain-language message and a "Retry" button. No blank grid, no raw status code.
  4. Restart the API (docker compose start api) and click "Retry".
  5. Expect: Images load successfully.

Card polish

  1. Hover over an image card.
  2. Expect: Card lifts slightly (2 px translate) with a smooth transition.

Broken image

  1. Manually corrupt a storage key in the database (or unplug MinIO) and reload.
  2. Expect: Card shows a grey placeholder graphic, not a broken-image browser icon.

375 px viewport

  1. DevTools → Device toolbar → iPhone SE (375 × 667).
  2. Expect: Cards stack, no horizontal scrollbar, all content readable.

M3 — Upload View

Drop-zone idle

  1. Navigate to /upload (must be logged in).
  2. Expect: A visually distinct drop-zone with dashed border and clear instructions. Submit button is disabled/greyed.

In-progress

  1. Select a large image file.
  2. Click upload.
  3. Expect: Button label changes to "Uploading…" and is disabled. A spinner or animated indicator is visible.

Success

  1. After a successful upload completes.
  2. Expect: A green-tinted success banner with the filename, "Upload another" link, and "View in library" link. Banner disappears after 4 seconds.

Validation error

  1. Attempt to upload a .txt file.
  2. Expect: An inline error message names the problem ("Unsupported file type"). The form is still usable — no page reload required.

Network error

  1. Stop the API mid-upload (or use DevTools → block the upload request).
  2. Expect: A generic inline error with guidance to retry. Form remains usable.

M4 — Detail View

Loading skeleton

  1. Set network throttle to Slow 3G.
  2. Navigate directly to an image URL (e.g., http://localhost:4200/images/<id>).
  3. Expect: A grey rectangle skeleton for the image area and chip skeletons below. No blank page.

Not-found state

  1. Navigate to http://localhost:4200/images/00000000-0000-0000-0000-000000000000.
  2. Expect: A styled not-found card with "Image not found" heading and a "Back to library" button. No blank page, no raw 404 text.

Authenticated write controls

  1. Log in and open a detail page.
  2. Expect: Tag editing input and delete button are visible and clearly grouped.

Unauthenticated view

  1. Open the detail page in a private/incognito window (not logged in).
  2. Expect: Image and read-only tag chips are visible. No tag input, no delete button.

Tag error

  1. While logged in, attempt to add a tag with invalid characters (e.g., TAG!).
  2. Expect: An inline error in danger colour with a left accent border. Other tags and the image remain visible.

Broken image

  1. Open a detail page for an image whose storage object has been deleted.
  2. Expect: A placeholder graphic replaces the image. Page layout is not broken.

M5 — Login View

Visual consistency

  1. Open /login without being logged in.
  2. Expect: Dark background matching the library; form centred in a surface card; same font and spacing as other pages.

Field validation

  1. Click the Sign In button without entering any credentials.
  2. Expect: Inline validation messages appear on the username and password fields without a page reload.

Invalid credentials error

  1. Enter wrong credentials and submit.
  2. Expect: A single error message below the form. Fields retain their values.

In-progress state

  1. Submit valid credentials (throttle network if needed to see the state).
  2. Expect: Button label changes to "Signing in…" and is disabled while the request is in flight.

M6 — App Shell

Authenticated header

  1. Log in and navigate between library, upload, and an image detail page.
  2. Expect: A consistent 48 px header is present on all pages. Sign-out control is visible on the right. Header does not reflow content.

Unauthenticated header

  1. Open the library or detail page without logging in.
  2. Expect: Header is present but sign-out control is absent.

Sign out

  1. Click the sign-out control in the header.
  2. Expect: Redirected to /login. Header no longer shows sign-out control. Navigating to /upload redirects back to /login.