# Market Terminal (Notchset): prompt.md (v1.0.0)

- id: `market-terminal` · version 1.0.0 · block · pro (Pro)
- category: Data
- build: Base UI (one set of files; its dependencies follow the build)
- install (this build): `npx shadcn@latest add @beautiful-ui-pro/market-terminal`
- npm dependencies: class-variance-authority@^0.7
- registry dependencies: utils, @beautiful-ui/segmented-control, https://beautiful-ui.dev/r/notchset-foundation.json
- docs: https://beautiful-ui.dev/components/market-terminal
- The install command carries everything this item needs (files, CSS, tokens, npm and registry dependencies). Prefer it to copying source by hand.

A trading terminal: a rolling price with the day's change and stats, 1D–1Y ranges and MA 20 / MA 50, a candlestick chart with volume, a last-price tag and a crosshair whose OHLC readout follows the pointer, a watchlist with sparklines, and a trade ticket (buy or sell, market or limit, a share stepper) that refuses orders past buying power or shares held, shows a scanner while placing and lists the newest orders.

## Build it
- Stack: React 19 (`ref` is a plain prop), TypeScript, Tailwind CSS v4 utilities, a shadcn-initialised project with the `@/*` alias.
- Packages: `class-variance-authority@^0.7`.
- Files: `components/ui/notchset/blocks/market-terminal.tsx`; shared code: `lib/beautiful-ui/notchset/instrument.tsx`, `lib/beautiful-ui/notchset/root.ts`, `lib/beautiful-ui/notchset/button-variants.ts`, `lib/beautiful-ui/notchset/field-classes.ts`.
- Registry dependencies, installed with it automatically: shadcn `utils` (cn), `segmented-control`, `notchset-foundation`.
- Builds: one set of files for both, but its dependencies come in Base UI and Radix builds. Install the one that matches the project (see Install): a free item's bare URL installs the Base UI build of it and its dependencies.
- Exports to keep: `MarketTerminal`, and every exported type.
- CSS: the install adds the notchset foundation (tokens, keyframes, motion levels) to your global stylesheet once. Nothing to import by hand.
- Re-running `add` (or `--overwrite`) re-applies those rules: put overrides in your own CSS, never in the installed rules.
- Tokens: retheme with the `--notchset-*` custom properties (`--notchset-check`, `--notchset-control-edge`, `--notchset-draw-from`, `--notchset-ease-bloom`, `--notchset-ease-glide`, `--notchset-ease-key-down`, `--notchset-ease-key-up`, `--notchset-ease-travel`, `--notchset-fade`, `--notchset-focus-color`, `--notchset-focus-inset`, `--notchset-grow-to`, `--notchset-key-down`, `--notchset-key-up`, `--notchset-life-from`, `--notchset-life-ms`, `--notchset-node-blink`, `--notchset-node-bloom`, `--notchset-node-delay`, `--notchset-plate-color`, `--notchset-rise-from`, `--notchset-rule`, `--notchset-scan-to`, `--notchset-scroll`, `--notchset-signal`, `--notchset-sweep-to`, `--notchset-travel`). Never add Tailwind colour classes inside the component.

```tsx
import { MarketTerminal, type MarketSymbol, type OrderRequest } from "@/components/ui/notchset/blocks/market-terminal";
```

## Parts

| Part | data-slot | What it is for |
|---|---|---|
| `MarketTerminal` | `market-terminal` | Header, chart with readout, watchlist and trade ticket. |

Style a part with `[data-slot="<slot>"]` selectors or its `className`; keep the attributes when editing.

## Sound
- Keep every `data-slot` and `data-sound` attribute: the sound layer reads them.
- Installing this item adds no audio. Nothing plays until the app mounts `SoundProvider` once (install: `npx shadcn@latest add https://beautiful-ui.dev/r/notchset-sound.json`, import from `@/components/ui/notchset/sound-provider`); `useSound()` gives `muted` and `setMuted` for a mute control. Without a provider the audio engine never loads.

## Match the original
- Read `components/ui/notchset/blocks/market-terminal.tsx` as the reference implementation before changing or recreating anything, and match it: sizes, colours per theme, motion timings, copy and behaviour.
- If you deviate (a prop you can't honour, a style you changed, a dependency you swapped), say so in your reply, part by part.
- Keep the accessibility contract, the keyboard map and the motion levels listed below.

## Use it when
- trading terminal, stock chart, candlestick, watchlist, order ticket, brokerage, crypto exchange, paper trading, Notchset
- A brokerage or paper-trading screen
- Showing a symbol's price history with a place-an-order flow

### Not when
- A plain price line: use a line chart
- Order books and depth: this has no level-2 view

## Mistakes
- Throttle quotes to about one update a second; every update rolls
- Enforce buying power and holdings on the server too

## Usage

```tsx
import { MarketTerminal, type MarketSymbol, type OrderRequest } from "@/components/ui/notchset/blocks/market-terminal";

export function Terminal({ symbols }: { symbols: MarketSymbol[] }) {
  return (
    <MarketTerminal
      symbols={symbols}
      holdings={{ RLY: 120 }}
      buyingPower={24860.35}
      onOrder={async (order: OrderRequest) => {
        const res = await fetch("/api/orders", { method: "POST", body: JSON.stringify(order) });
        return ((await res.json()) as { status: "filled" | "working" }).status;
      }}
    />
  );
}
```

## Props

| Prop | Type | Default | What it does |
|---|---|---|---|
| `symbols` | `{ ticker, name, price, prevClose, open, high, low, volume, series }[]` |  | series maps each range id to candles { t, o, h, l, c, v }; the last candle follows price. |
| `holdings / buyingPower` | `Record<ticker, number> / number` |  | What the ticket checks orders against; filled orders update both. |
| `live / onLiveChange` | `boolean / (live) => void` |  | The LIVE / PAUSED button; stream quotes into symbols while live. |
| `onOrder / onCancel` | `(order) => Promise<'filled' \| 'working'> / (order) => void` |  | Place and cancel orders on your broker (simulated by default). |
| `ranges / exchange / note` | `{ id, label }[] / string / string` |  | Range control (1D–1Y), the exchange line and the ticket's footnote. |

Full docs: https://beautiful-ui.dev/components/market-terminal

## Customising
- Colours: the component reads your shadcn tokens (`--background`, `--foreground`, `--border` …), refined by the `--notchset-*` tokens. The signal colour is `--notchset-signal` (it falls back to `--destructive`). Set tokens on `:root`, or on any container to retheme one area.
- Dark mode follows the `.dark` class on an ancestor (the shadcn and next-themes convention).
- Update later by re-running the install with `--overwrite` (review the diff if you edited it). Changelog: https://beautiful-ui.dev/r/changelog.json

## Keyboard

| Keys | Action |
|---|---|
| ↑ ↓ | Change symbol in the watchlist; change shares on the stepper |
| Page Up / Page Down | Shares ±10 |
| ← → | Change range, side or order type |

## Performance

- Candles are drawn as a handful of SVG paths, not one element each; sparklines are cached per series.

## Responsive

- Under 820px (container width) the watchlist and ticket move under the chart.

## Motion inventory

| Interaction | What moves |
|---|---|
| Symbol or range | The chart reveals left to right (760ms) |
| Prices | Roll on change; the last-price tag glides (600ms) |
| Placing | A scanner, then the order rises into the list |
| Cancel | CANCELLED, fades, then leaves (900ms) |

## Accessibility contract (preserve when editing)
- The watchlist is a listbox (↑ ↓ and Enter); the share count is a spinbutton (arrows ±1, Page Up / Down ±10)
- A refused order keeps the button focusable and names the reason, linked by aria-describedby
- Fills, working orders and cancellations are announced in a polite live region

## Install

```bash
npx shadcn@latest add @beautiful-ui-pro/market-terminal
```

Pro item: needs the `@beautiful-ui-pro` registry in `components.json` and `BEAUTIFUL_UI_TOKEN` in `.env.local` (https://beautiful-ui.dev/account). Setup: https://beautiful-ui.dev/docs/pro. Your components.json `style` picks the build: radix-*, new-york and default get Radix, base-* gets Base UI.

## Credits
- Built on shadcn/ui (https://ui.shadcn.com)

The notchset foundation (the tokens listed above, keyframes and motion levels) installs once with the first component; its CSS is public at https://beautiful-ui.dev/r/notchset-foundation.json.