85 lines
2.7 KiB
TypeScript
85 lines
2.7 KiB
TypeScript
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import type { ComputerMode, ComputerStatus as ContractComputerStatus } from "@rakazo/contracts";
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export const COMPUTER_HEARTBEAT_MS = 60_000;
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export const SCREEN_URL_OPEN_ATTEMPTS = 5;
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export const SCREEN_URL_RETRY_DELAY_MS = 400;
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export type ComputerStatus = ContractComputerStatus;
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function isLocalHostname(hostname: string) {
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return (
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hostname === "127.0.0.1" ||
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hostname === "localhost" ||
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hostname === "[::1]" ||
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hostname === "::1"
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);
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}
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export async function readScreenUrl(
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request: () => Promise<{ url: string | null }>,
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options: {
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attempts?: number;
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delayMs?: number;
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sleep?: (ms: number) => Promise<void>;
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} = {},
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): Promise<string | null> {
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const attempts = Math.max(1, options.attempts ?? 1);
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const delayMs = options.delayMs ?? SCREEN_URL_RETRY_DELAY_MS;
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const sleep =
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options.sleep ?? ((ms: number) => new Promise((resolve) => setTimeout(resolve, ms)));
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let lastError: unknown;
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for (let attempt = 1; attempt <= attempts; attempt += 1) {
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try {
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const screen = await request();
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if (screen.url) return screen.url;
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lastError = undefined;
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} catch (error) {
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lastError = error;
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}
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if (attempt < attempts) await sleep(delayMs);
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}
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if (lastError) throw lastError;
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return null;
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}
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/** Point a loopback noVNC URL at the same host the app uses for the API. */
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export function embeddableScreenUrl(url: string | null, apiBase: string): string | null {
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if (!url) return null;
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try {
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const parsed = new URL(url);
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const api = new URL(apiBase);
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if (isLocalHostname(parsed.hostname) && !isLocalHostname(api.hostname)) {
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parsed.hostname = api.hostname;
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}
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return parsed.toString();
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} catch {
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return url;
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}
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}
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export function previewPlaceholder(
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state: string | undefined,
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booting: boolean,
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name: string,
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mode?: ComputerMode,
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): string {
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if (state === "booting" || booting) return "Booting live desktop…";
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if (state === "running") return computerLabel(mode, name);
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if (state === "suspended") return "Computer is asleep — take control to wake it";
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if (state === "error") return "Computer failed to boot";
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return "Computer is stopped";
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}
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export function controlLabel(computer: ComputerStatus | null, name: string, botId?: string) {
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if (computer?.busyBotName) return `${computer.busyBotName} is using it`;
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if (computer?.controlHolder === "user" && computer.controlBotId === botId) {
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return "You have control";
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}
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if (computer?.state === "suspended") return "Asleep";
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return computerLabel(computer?.mode, name);
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}
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export function computerLabel(mode: ComputerMode | undefined, name: string) {
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return mode === "dedicated" ? `${name}’s computer` : "Team Computer";
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}
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