Projektstart

- Phase 1 "Twitch Login" abgeschlossen
This commit is contained in:
Andre
2026-04-07 20:11:00 +02:00
commit 7d19ccf652
23 changed files with 8606 additions and 0 deletions
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// Orchestriert den kompletten Twitch-Login-Lifecycle und hält den aktuellen Token-Status.
import { EventEmitter } from 'node:events'
import {
pollForToken,
refreshAccessToken,
requestDeviceCode,
type DeviceCodeResponse,
type TokenResponse
} from './deviceCodeFlow'
import { clearTokens, loadTokens, saveTokens, type StoredTokens } from './tokenStore'
const SCOPES = ['user:read:follows'] as const
const REFRESH_SAFETY_MS = 60_000
export type AuthStatus = 'logged-out' | 'logged-in'
export interface DeviceFlowStartInfo {
userCode: string
verificationUri: string
expiresInSec: number
}
export type AuthEvent =
| { kind: 'authorized' }
| { kind: 'denied' }
| { kind: 'expired' }
| { kind: 'cancelled' }
| { kind: 'error'; message: string }
export class AuthService extends EventEmitter {
private tokens: StoredTokens | null = null
private currentFlow: AbortController | null = null
constructor(private readonly clientId: string) {
super()
}
async init(): Promise<void> {
this.tokens = await loadTokens()
}
getStatus(): AuthStatus {
return this.tokens ? 'logged-in' : 'logged-out'
}
isConfigured(): boolean {
return this.clientId.length > 0
}
/**
* Startet den Device Code Flow. Liefert die Anzeigedaten sofort zurück
* und pollt im Hintergrund. Statuswechsel werden als 'auth-event' emittiert.
*/
async startDeviceFlow(): Promise<DeviceFlowStartInfo> {
if (!this.isConfigured()) {
throw new Error(
'TWITCH_CLIENT_ID nicht gesetzt. Trage MAIN_VITE_TWITCH_CLIENT_ID in .env ein.'
)
}
this.cancelFlow()
const device: DeviceCodeResponse = await requestDeviceCode(this.clientId, SCOPES)
const ctrl = new AbortController()
this.currentFlow = ctrl
void this.runPolling(device, ctrl.signal)
return {
userCode: device.user_code,
verificationUri: device.verification_uri,
expiresInSec: device.expires_in
}
}
cancelFlow(): void {
this.currentFlow?.abort()
this.currentFlow = null
}
async logout(): Promise<void> {
this.cancelFlow()
this.tokens = null
await clearTokens()
this.emit('auth-event', { kind: 'cancelled' } satisfies AuthEvent)
}
/**
* Liefert ein gültiges Access-Token, refresht falls nötig.
* Wird vom Helix-Client benutzt.
*/
async getValidAccessToken(): Promise<string | null> {
if (!this.tokens) return null
if (this.tokens.expiresAt - REFRESH_SAFETY_MS > Date.now()) {
return this.tokens.accessToken
}
try {
const refreshed = await refreshAccessToken(this.clientId, this.tokens.refreshToken)
this.tokens = tokenResponseToStored(refreshed)
await saveTokens(this.tokens)
return this.tokens.accessToken
} catch {
// Refresh fehlgeschlagen → User muss sich neu einloggen.
this.tokens = null
await clearTokens()
return null
}
}
private async runPolling(device: DeviceCodeResponse, signal: AbortSignal): Promise<void> {
const outcome = await pollForToken({
clientId: this.clientId,
scopes: SCOPES,
deviceCode: device.device_code,
intervalSec: device.interval,
expiresInSec: device.expires_in,
signal
})
if (outcome.kind === 'authorized') {
this.tokens = tokenResponseToStored(outcome.token)
await saveTokens(this.tokens)
this.emit('auth-event', { kind: 'authorized' } satisfies AuthEvent)
} else {
this.emit('auth-event', outcome satisfies AuthEvent)
}
}
}
function tokenResponseToStored(t: TokenResponse): StoredTokens {
return {
accessToken: t.access_token,
refreshToken: t.refresh_token,
expiresAt: Date.now() + t.expires_in * 1000,
scopes: Array.isArray(t.scope) ? t.scope : []
}
}
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// Twitch OAuth 2.0 Device Code Flow.
// Doku: https://dev.twitch.tv/docs/authentication/getting-tokens-oauth/#device-code-grant-flow
const DEVICE_ENDPOINT = 'https://id.twitch.tv/oauth2/device'
const TOKEN_ENDPOINT = 'https://id.twitch.tv/oauth2/token'
export interface DeviceCodeResponse {
device_code: string
user_code: string
verification_uri: string
expires_in: number
interval: number
}
export interface TokenResponse {
access_token: string
refresh_token: string
expires_in: number
scope: string[]
token_type: string
}
export async function requestDeviceCode(
clientId: string,
scopes: readonly string[]
): Promise<DeviceCodeResponse> {
const body = new URLSearchParams({
client_id: clientId,
scopes: scopes.join(' ')
})
const res = await fetch(DEVICE_ENDPOINT, {
method: 'POST',
headers: { 'Content-Type': 'application/x-www-form-urlencoded' },
body
})
if (!res.ok) {
throw new Error(`Device-Code-Request fehlgeschlagen (${res.status}): ${await res.text()}`)
}
return (await res.json()) as DeviceCodeResponse
}
export type PollOutcome =
| { kind: 'authorized'; token: TokenResponse }
| { kind: 'denied' }
| { kind: 'expired' }
| { kind: 'cancelled' }
| { kind: 'error'; message: string }
interface PollOptions {
clientId: string
scopes: readonly string[]
deviceCode: string
intervalSec: number
expiresInSec: number
signal?: AbortSignal
}
export async function pollForToken(opts: PollOptions): Promise<PollOutcome> {
const deadline = Date.now() + opts.expiresInSec * 1000
let intervalMs = Math.max(1, opts.intervalSec) * 1000
while (Date.now() < deadline) {
if (opts.signal?.aborted) return { kind: 'cancelled' }
await sleep(intervalMs, opts.signal)
if (opts.signal?.aborted) return { kind: 'cancelled' }
const body = new URLSearchParams({
client_id: opts.clientId,
scopes: opts.scopes.join(' '),
device_code: opts.deviceCode,
grant_type: 'urn:ietf:params:oauth:grant-type:device_code'
})
let res: Response
try {
res = await fetch(TOKEN_ENDPOINT, {
method: 'POST',
headers: { 'Content-Type': 'application/x-www-form-urlencoded' },
body
})
} catch (err) {
return { kind: 'error', message: (err as Error).message }
}
if (res.ok) {
const token = (await res.json()) as TokenResponse
return { kind: 'authorized', token }
}
// Twitch liefert bei Pending einen 400 mit message-Feld.
let payload: { message?: string; status?: number } = {}
try {
payload = await res.json()
} catch {
/* nicht-JSON Antwort, ignorieren */
}
const msg = (payload.message ?? '').toLowerCase()
if (msg.includes('authorization_pending') || msg.includes('pending')) {
continue
}
if (msg.includes('slow_down') || msg.includes('slow down')) {
intervalMs += 5000
continue
}
if (msg.includes('expired')) return { kind: 'expired' }
if (msg.includes('denied') || msg.includes('access_denied')) return { kind: 'denied' }
return { kind: 'error', message: payload.message ?? `HTTP ${res.status}` }
}
return { kind: 'expired' }
}
export async function refreshAccessToken(
clientId: string,
refreshToken: string
): Promise<TokenResponse> {
const body = new URLSearchParams({
client_id: clientId,
grant_type: 'refresh_token',
refresh_token: refreshToken
})
const res = await fetch(TOKEN_ENDPOINT, {
method: 'POST',
headers: { 'Content-Type': 'application/x-www-form-urlencoded' },
body
})
if (!res.ok) {
throw new Error(`Token-Refresh fehlgeschlagen (${res.status}): ${await res.text()}`)
}
return (await res.json()) as TokenResponse
}
function sleep(ms: number, signal?: AbortSignal): Promise<void> {
return new Promise((resolve) => {
if (signal?.aborted) {
resolve()
return
}
const t = setTimeout(() => {
signal?.removeEventListener('abort', onAbort)
resolve()
}, ms)
const onAbort = (): void => {
clearTimeout(t)
resolve()
}
signal?.addEventListener('abort', onAbort, { once: true })
})
}
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// Verschlüsselte Persistenz für Twitch-Tokens.
// Nutzt Electron safeStorage (OS-Keystore unter der Haube) — keine native Module nötig.
import { app, safeStorage } from 'electron'
import { promises as fs } from 'node:fs'
import { join } from 'node:path'
export interface StoredTokens {
accessToken: string
refreshToken: string
/** Unix ms */
expiresAt: number
scopes: string[]
}
const FILE_NAME = 'twitch-tokens.bin'
function filePath(): string {
return join(app.getPath('userData'), FILE_NAME)
}
export async function saveTokens(tokens: StoredTokens): Promise<void> {
const json = JSON.stringify(tokens)
const path = filePath()
if (safeStorage.isEncryptionAvailable()) {
const encrypted = safeStorage.encryptString(json)
await fs.writeFile(path, encrypted)
} else {
// Fallback: unverschlüsselt (z. B. headless Linux ohne Keyring).
// Datei nur für aktuellen User lesbar machen.
await fs.writeFile(path, json, { mode: 0o600 })
}
}
export async function loadTokens(): Promise<StoredTokens | null> {
const path = filePath()
let raw: Buffer
try {
raw = await fs.readFile(path)
} catch (err) {
if ((err as NodeJS.ErrnoException).code === 'ENOENT') return null
throw err
}
let json: string
if (safeStorage.isEncryptionAvailable()) {
try {
json = safeStorage.decryptString(raw)
} catch {
// Datei evtl. mit anderem Key geschrieben — als ungültig behandeln.
return null
}
} else {
json = raw.toString('utf8')
}
try {
return JSON.parse(json) as StoredTokens
} catch {
return null
}
}
export async function clearTokens(): Promise<void> {
try {
await fs.unlink(filePath())
} catch (err) {
if ((err as NodeJS.ErrnoException).code !== 'ENOENT') throw err
}
}
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import { app, BrowserWindow, shell } from 'electron'
import { join } from 'node:path'
import { AuthService } from './auth/authService'
import { registerIpcHandlers } from './ipc/handlers'
const isDev = !app.isPackaged
function createWindow(): BrowserWindow {
const win = new BrowserWindow({
width: 1280,
height: 800,
minWidth: 1024,
minHeight: 640,
show: false,
autoHideMenuBar: true,
backgroundColor: '#0e0e10',
webPreferences: {
preload: join(__dirname, '../preload/index.js'),
sandbox: false,
contextIsolation: true,
nodeIntegration: false
}
})
win.once('ready-to-show', () => win.show())
win.webContents.setWindowOpenHandler(({ url }) => {
shell.openExternal(url)
return { action: 'deny' }
})
if (isDev && process.env.ELECTRON_RENDERER_URL) {
win.loadURL(process.env.ELECTRON_RENDERER_URL)
} else {
win.loadFile(join(__dirname, '../renderer/index.html'))
}
return win
}
app.whenReady().then(async () => {
const clientId = import.meta.env.MAIN_VITE_TWITCH_CLIENT_ID ?? ''
const auth = new AuthService(clientId)
await auth.init()
registerIpcHandlers(auth)
if (!clientId) {
console.warn(
'[twitch4steamdeck] MAIN_VITE_TWITCH_CLIENT_ID nicht gesetzt — Login wird im UI als nicht konfiguriert angezeigt.'
)
}
createWindow()
app.on('activate', () => {
if (BrowserWindow.getAllWindows().length === 0) createWindow()
})
})
app.on('window-all-closed', () => {
if (process.platform !== 'darwin') app.quit()
})
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import { BrowserWindow, ipcMain } from 'electron'
import type { AuthEvent, AuthService } from '../auth/authService'
export const IPC = {
authStatus: 'auth:get-status',
authStart: 'auth:start-device-flow',
authCancel: 'auth:cancel',
authLogout: 'auth:logout',
authConfigured: 'auth:is-configured',
/** main → renderer */
authEvent: 'auth:event'
} as const
export function registerIpcHandlers(auth: AuthService): void {
ipcMain.handle(IPC.authStatus, () => auth.getStatus())
ipcMain.handle(IPC.authConfigured, () => auth.isConfigured())
ipcMain.handle(IPC.authStart, () => auth.startDeviceFlow())
ipcMain.handle(IPC.authCancel, () => {
auth.cancelFlow()
})
ipcMain.handle(IPC.authLogout, () => auth.logout())
auth.on('auth-event', (event: AuthEvent) => {
for (const win of BrowserWindow.getAllWindows()) {
win.webContents.send(IPC.authEvent, event)
}
})
}
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import { contextBridge, ipcRenderer, type IpcRendererEvent } from 'electron'
const IPC = {
authStatus: 'auth:get-status',
authStart: 'auth:start-device-flow',
authCancel: 'auth:cancel',
authLogout: 'auth:logout',
authConfigured: 'auth:is-configured',
authEvent: 'auth:event'
} as const
export type AuthStatus = 'logged-out' | 'logged-in'
export interface DeviceFlowStartInfo {
userCode: string
verificationUri: string
expiresInSec: number
}
export type AuthEvent =
| { kind: 'authorized' }
| { kind: 'denied' }
| { kind: 'expired' }
| { kind: 'cancelled' }
| { kind: 'error'; message: string }
const api = {
appVersion: process.env.npm_package_version ?? '0.0.0',
auth: {
isConfigured: (): Promise<boolean> => ipcRenderer.invoke(IPC.authConfigured),
getStatus: (): Promise<AuthStatus> => ipcRenderer.invoke(IPC.authStatus),
startDeviceFlow: (): Promise<DeviceFlowStartInfo> => ipcRenderer.invoke(IPC.authStart),
cancel: (): Promise<void> => ipcRenderer.invoke(IPC.authCancel),
logout: (): Promise<void> => ipcRenderer.invoke(IPC.authLogout),
onEvent: (cb: (event: AuthEvent) => void): (() => void) => {
const listener = (_e: IpcRendererEvent, event: AuthEvent): void => cb(event)
ipcRenderer.on(IPC.authEvent, listener)
return () => ipcRenderer.removeListener(IPC.authEvent, listener)
}
}
}
contextBridge.exposeInMainWorld('t4sd', api)
export type T4sdApi = typeof api
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<!doctype html>
<html lang="de">
<head>
<meta charset="UTF-8" />
<meta name="viewport" content="width=1280, initial-scale=1" />
<meta http-equiv="Content-Security-Policy"
content="default-src 'self'; script-src 'self'; style-src 'self' 'unsafe-inline'; img-src 'self' data: https:; connect-src 'self' https:;" />
<title>Twitch4SteamDeck</title>
</head>
<body>
<div id="root"></div>
<script type="module" src="/src/main.tsx"></script>
</body>
</html>
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import { useCallback, useEffect, useState } from 'react'
import LoginScreen from './screens/LoginScreen'
import type { AuthStatus } from './types/t4sd'
export default function App(): JSX.Element {
const [status, setStatus] = useState<AuthStatus | 'loading'>('loading')
const refresh = useCallback(async () => {
const s = await window.t4sd.auth.getStatus()
setStatus(s)
}, [])
useEffect(() => {
void refresh()
const off = window.t4sd.auth.onEvent((event) => {
if (event.kind === 'authorized' || event.kind === 'cancelled') void refresh()
})
return off
}, [refresh])
return (
<main className="shell">
<header className="shell__header">
<h1>Twitch4SteamDeck</h1>
<span className="shell__version">v{window.t4sd.appVersion}</span>
</header>
<section className="shell__body">
{status === 'loading' && <p>Lade…</p>}
{status === 'logged-out' && <LoginScreen onAuthorized={refresh} />}
{status === 'logged-in' && <LoggedInPlaceholder onLogout={refresh} />}
</section>
</main>
)
}
function LoggedInPlaceholder({ onLogout }: { onLogout: () => void }): JSX.Element {
async function handleLogout(): Promise<void> {
await window.t4sd.auth.logout()
onLogout()
}
return (
<div className="login">
<h2>Eingeloggt</h2>
<p>Followed-Liste, VODs und Player folgen in den nächsten Schritten.</p>
<button className="btn" onClick={handleLogout}>
Abmelden
</button>
</div>
)
}
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import React from 'react'
import ReactDOM from 'react-dom/client'
import App from './App'
import './styles/global.css'
ReactDOM.createRoot(document.getElementById('root')!).render(
<React.StrictMode>
<App />
</React.StrictMode>
)
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import { useEffect, useRef, useState } from 'react'
import QRCode from 'qrcode'
import type { DeviceFlowStartInfo } from '../types/t4sd'
interface Props {
onAuthorized: () => void
}
type Phase =
| { kind: 'idle' }
| { kind: 'starting' }
| { kind: 'awaiting'; info: DeviceFlowStartInfo; qrDataUrl: string; remainingSec: number }
| { kind: 'error'; message: string }
| { kind: 'not-configured' }
export default function LoginScreen({ onAuthorized }: Props): JSX.Element {
const [phase, setPhase] = useState<Phase>({ kind: 'idle' })
const startBtnRef = useRef<HTMLButtonElement>(null)
// Initial: prüfen ob Client-ID konfiguriert ist.
useEffect(() => {
void window.t4sd.auth.isConfigured().then((ok) => {
if (!ok) setPhase({ kind: 'not-configured' })
})
startBtnRef.current?.focus()
}, [])
// Auth-Events aus Main abonnieren.
useEffect(() => {
const off = window.t4sd.auth.onEvent((event) => {
switch (event.kind) {
case 'authorized':
onAuthorized()
break
case 'denied':
setPhase({ kind: 'error', message: 'Zugriff abgelehnt.' })
break
case 'expired':
setPhase({ kind: 'error', message: 'Code abgelaufen — bitte erneut versuchen.' })
break
case 'error':
setPhase({ kind: 'error', message: event.message })
break
case 'cancelled':
setPhase({ kind: 'idle' })
break
}
})
return off
}, [onAuthorized])
// Countdown für die aktive Phase.
useEffect(() => {
if (phase.kind !== 'awaiting') return
if (phase.remainingSec <= 0) return
const t = setTimeout(() => {
setPhase((p) =>
p.kind === 'awaiting' ? { ...p, remainingSec: p.remainingSec - 1 } : p
)
}, 1000)
return () => clearTimeout(t)
}, [phase])
async function start(): Promise<void> {
setPhase({ kind: 'starting' })
try {
const info = await window.t4sd.auth.startDeviceFlow()
const qrDataUrl = await QRCode.toDataURL(info.verificationUri, {
margin: 1,
width: 280,
color: { dark: '#0e0e10', light: '#ffffff' }
})
setPhase({ kind: 'awaiting', info, qrDataUrl, remainingSec: info.expiresInSec })
} catch (err) {
setPhase({ kind: 'error', message: (err as Error).message })
}
}
async function cancel(): Promise<void> {
await window.t4sd.auth.cancel()
setPhase({ kind: 'idle' })
}
if (phase.kind === 'not-configured') {
return (
<div className="login">
<h2>Konfiguration fehlt</h2>
<p>
Es ist keine Twitch <code>Client ID</code> hinterlegt. Lege im Projektverzeichnis eine
Datei <code>.env</code> an (siehe <code>.env.example</code>) und setze
<br />
<code>MAIN_VITE_TWITCH_CLIENT_ID=…</code>
<br />
Danach <code>npm run dev</code> neu starten.
</p>
</div>
)
}
if (phase.kind === 'awaiting') {
return (
<div className="login">
<h2>Mit Twitch verbinden</h2>
<p>
Öffne auf einem anderen Gerät{' '}
<strong>{phase.info.verificationUri}</strong> und gib den Code ein:
</p>
<div className="login__code">{phase.info.userCode}</div>
<img className="login__qr" src={phase.qrDataUrl} alt="QR Code" />
<p className="login__hint">Code läuft in {formatTime(phase.remainingSec)} ab.</p>
<button className="btn" onClick={cancel}>
Abbrechen
</button>
</div>
)
}
return (
<div className="login">
<h2>Willkommen</h2>
<p>Verbinde deinen Twitch-Account, um gefolgte Kanäle und VODs zu sehen.</p>
{phase.kind === 'error' && <p className="login__error">{phase.message}</p>}
<button
ref={startBtnRef}
className="btn btn--primary"
onClick={start}
disabled={phase.kind === 'starting'}
>
{phase.kind === 'starting' ? 'Starte…' : 'Mit Twitch verbinden'}
</button>
</div>
)
}
function formatTime(sec: number): string {
const m = Math.floor(sec / 60)
const s = sec % 60
return `${m}:${s.toString().padStart(2, '0')}`
}
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/* Big-Screen-Baseline: 1280x800 (Steam Deck), große Schrift, dunkle Oberfläche. */
:root {
--color-bg: #0e0e10;
--color-bg-elev: #18181b;
--color-fg: #efeff1;
--color-fg-dim: #adadb8;
--color-accent: #9147ff;
--color-focus: #bf94ff;
--radius: 12px;
--font-size-body: 22px;
--font-size-h1: 44px;
}
* {
box-sizing: border-box;
}
html, body, #root {
margin: 0;
padding: 0;
height: 100%;
background: var(--color-bg);
color: var(--color-fg);
font-family: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
font-size: var(--font-size-body);
line-height: 1.4;
-webkit-font-smoothing: antialiased;
user-select: none;
overflow: hidden;
}
:focus-visible {
outline: 3px solid var(--color-focus);
outline-offset: 4px;
border-radius: 6px;
}
.shell {
display: flex;
flex-direction: column;
height: 100%;
padding: 32px 48px;
gap: 32px;
}
.shell__header {
display: flex;
align-items: baseline;
justify-content: space-between;
}
.shell__header h1 {
margin: 0;
font-size: var(--font-size-h1);
letter-spacing: 0.5px;
}
.shell__version {
color: var(--color-fg-dim);
font-size: 18px;
}
.shell__body {
flex: 1;
background: var(--color-bg-elev);
border-radius: var(--radius);
padding: 32px;
display: flex;
align-items: center;
justify-content: center;
text-align: center;
color: var(--color-fg);
overflow: auto;
}
.login {
max-width: 640px;
display: flex;
flex-direction: column;
align-items: center;
gap: 20px;
}
.login h2 {
margin: 0;
font-size: 36px;
}
.login p {
margin: 0;
color: var(--color-fg-dim);
line-height: 1.5;
}
.login code {
background: rgba(255, 255, 255, 0.08);
padding: 2px 8px;
border-radius: 6px;
font-size: 18px;
}
.login__code {
font-size: 56px;
letter-spacing: 12px;
font-weight: 700;
background: rgba(145, 71, 255, 0.12);
padding: 16px 28px;
border-radius: var(--radius);
color: var(--color-fg);
}
.login__qr {
width: 280px;
height: 280px;
border-radius: var(--radius);
background: #fff;
padding: 8px;
}
.login__hint {
font-size: 18px;
}
.login__error {
color: #ff6868;
}
.btn {
font: inherit;
padding: 16px 32px;
border: 2px solid transparent;
border-radius: var(--radius);
background: rgba(255, 255, 255, 0.08);
color: var(--color-fg);
cursor: pointer;
min-width: 220px;
}
.btn:hover {
background: rgba(255, 255, 255, 0.14);
}
.btn--primary {
background: var(--color-accent);
}
.btn--primary:hover {
background: #a970ff;
}
.btn:disabled {
opacity: 0.6;
cursor: not-allowed;
}
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// Spiegel der Preload-API. Manuell synchron halten zu src/preload/index.ts.
export type AuthStatus = 'logged-out' | 'logged-in'
export interface DeviceFlowStartInfo {
userCode: string
verificationUri: string
expiresInSec: number
}
export type AuthEvent =
| { kind: 'authorized' }
| { kind: 'denied' }
| { kind: 'expired' }
| { kind: 'cancelled' }
| { kind: 'error'; message: string }
export interface T4sdApi {
appVersion: string
auth: {
isConfigured: () => Promise<boolean>
getStatus: () => Promise<AuthStatus>
startDeviceFlow: () => Promise<DeviceFlowStartInfo>
cancel: () => Promise<void>
logout: () => Promise<void>
onEvent: (cb: (event: AuthEvent) => void) => () => void
}
}
declare global {
interface Window {
t4sd: T4sdApi
}
}