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warp-engine-client/README.md
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mr.zeroandClaude Opus 5 f88340d63c An Electron client for the desktop store
The desktop store put the catalog on ordinary computers, and then asked people to
open a terminal — which on Windows is not even a workable ask, because the
installer is `curl … | sh`. This is the window: a grid of cards, one click to
install a title into the application menu, one to play it, one to remove it.

The CLI stays the product. Every action runs `desktop_store.py --json`, so there
is one catalog logic, one state file and one delete guard; the window never
touches the filesystem itself. That is also why the engine grew `--json` first
rather than this app growing a parser for prose.

It doubles as the Windows install path: with no store on the machine, the app
downloads the engine, the shared core and a config into the same folder the shell
installer would use — Node's https, no curl. An engine older than 1.1.0 cannot be
driven from a window, so the client checks the version and offers to refresh it
instead of failing on the first call.

Deliberate choices worth knowing:

- No renderer framework and no build step. Plain HTML, CSS and JS, one runtime
  dependency. The whole UI is readable in one sitting.
- `contextIsolation` on, `nodeIntegration` off, `sandbox` on, a CSP that permits
  only the app's own script and stylesheet plus images over HTTPS. The renderer
  can do exactly what preload.js exposes and nothing else.
- English and Hungarian, following the system language. The CLIs and the docs stay
  English; this is the one end-user surface where that is not enough.
- `ENGINES` is a list with one entry. The RetroArch store has the same command
  shape, so adding it is an entry, not a rewrite.

Two ways to test it without a working installation in the way: `npm run smoke`
drives the bridge with no window at all, and `npm run uitest` loads the window
once and reports what rendered — the only way a renderer error would otherwise be
noticed, since the main process log stays empty. Both accept a sandbox store
through STORE_ROOT / SMOKE_HOME.

Verified on macOS arm64, including the packaged .app: the store is found, ten
titles list, a sync installs three, and the window renders them as installed with
their Play and Remove buttons. Linux and Windows are unproven, as they are for the
CLI itself.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
2026-08-18 10:55:12 +02:00

106 lines
4.8 KiB
Markdown

# warp-engine-desktop-gui — a window for the desktop store
A graphical client for
[`warp-engine-desktop-store`](https://git.teletypegames.org/stores/warp-engine-desktop-store):
the catalog as a grid of cards, one click to install a title into your own
application menu, one to play it, one to remove it. Linux, macOS and Windows.
The CLI stays the product; this is its front door. Every action here runs
`desktop_store.py`, so there is one catalog logic, one state file and one delete
guard — the window never touches the filesystem itself.
It is also **the Windows install path**. The store's own installer is
`curl … | sh`, which Windows does not have; this app downloads the store engine
itself, into the same folder the shell installer would use.
## What it needs
- **Python 3** on the machine, because the store is a Python program. The app
looks for `python3`, `python` and `py -3`, and says so plainly if none answer.
- Nothing else at runtime. No Node, no package manager, no admin rights: the
store installs under your own user account.
## Install
Grab the package for your machine from the
[releases](https://git.teletypegames.org/stores/warp-engine-desktop-gui/releases)
and open it. On first run, if there is no store on the machine yet, the window
offers to download one — that is the whole setup.
The macOS build is **not signed or notarised**, so the first open needs
*right-click ▸ Open* (or *System Settings ▸ Privacy & Security*). Nothing the
store itself downloads is affected: those files are fetched by Python, which does
not set the quarantine flag.
## Use
- **Install all** fetches everything the catalog offers for this machine.
- A card's button is **Install**, **Update**, or **Play** / **Open** once it is
there. **Remove** takes a title back out.
- Each card says whether it is **native** — unpacked and run locally, works
offline — or **hosted**: a browser build the catalog serves rather than
packages, so its entry opens a page and needs the network.
- The **Log** drawer at the bottom carries the store's own output verbatim, and
next to it are buttons that open the two folders everything lands in.
- The language follows the system and can be switched; **English and Hungarian**.
Anything installed from the window is a normal menu entry, so it also shows up in
your launcher, Dock or Start menu — the app does not have to be running to play.
## Development
```sh
npm install
npm start # the window, against whatever store is installed
npm run smoke # the bridge only: no window, no Electron
npm run uitest # loads the window once and reports what rendered
npm run dist:mac # or dist:win / dist:linux
```
**Node 22 or newer is needed to install**, not to run: Electron's own installer
is ESM-only, and older Node cannot `require()` it. The packaged app carries its
own runtime.
Both test scripts accept a sandbox store instead of the real one, which is how
this repository is tested without touching a working installation:
```sh
STORE_ROOT=/tmp/sandbox-root npm start
SMOKE_HOME=/tmp/sandbox-root/ttg-desktop npm run smoke
```
### How it is put together
| File | What it does |
|---|---|
| `main.js` | the window, the IPC, and the one-call-at-a-time guard |
| `preload.js` | the entire surface the renderer gets — no Node reaches it |
| `lib/store.js` | finds the store and Python, runs the CLI, parses its JSON |
| `lib/bootstrap.js` | downloads the engine, the shared core and a config |
| `lib/i18n.js` | the two string tables |
| `renderer/` | plain HTML, CSS and JS — no framework, no build step |
`contextIsolation` is on, `nodeIntegration` off, `sandbox` on, and the page
carries a CSP that allows only its own script and stylesheet plus images over
HTTPS. Links open in the real browser; the window itself never navigates.
`lib/store.js` talks to the CLI through `--json`, which puts data on stdout and
the human-readable log on stderr. That flag arrived with engine **1.1.0**, and the
client checks: an older store is met with an offer to refresh it rather than a
failed call.
The bridge keeps an `ENGINES` list with one entry today. The RetroArch store has
the same command shape, so a second entry is the whole change needed to drive it
too — that is why the indirection is there.
## Verified, and not
Exercised on macOS (arm64): the store is discovered, the catalog lists, a sync
installs, the window renders the installed state, and `npm run uitest` passes with
the grid rendered and both languages in the picker. The bootstrap download was run
into an empty directory and the resulting store answered the bridge.
**Not tried on Linux or Windows.** The paths and the launch behaviour are written
for them, and the store CLI itself has the same gap — `.desktop` and `.lnk`
launchers have been generated and read, but nobody has clicked one.