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76 lines
3.4 KiB
TypeScript
76 lines
3.4 KiB
TypeScript
// The todo app's start: what the app decides itself, given to the kit's `startServer`: its name and data directory,
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// its API, its facet kinds, its principals, its one worker kind (a list), its page and its terminal client. The kit
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// does the rest. The examples call `startTodo` with a copy of `plugins/` they may edit; a real app's start script calls
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// it with the data directory from its command line and prints the owner link.
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import { cp, mkdtemp } from "node:fs/promises";
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import { tmpdir } from "node:os";
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import { join } from "node:path";
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import { fileURLToPath } from "node:url";
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import type { Context } from "../../../src/context/index.ts";
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import { type App, startServer } from "../../../src/node/app/index.ts";
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import { type PageAssets, pageScripts } from "../../../src/node/surfaces/index.ts";
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import * as v1 from "./src/api/v1/index.ts";
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import * as v1server from "./src/api/v1/server.ts";
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import type { TodoPrincipal } from "./src/principals.ts";
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/** The app's API: its name, its versions (newest first), and this process's instances of its modules. */
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export const API = {
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name: "@todo/app",
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versions: ["v1"],
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modules: { "@todo/app/v1": v1, "@todo/app/v1/server": v1server },
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};
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/** The app's facet kinds: a plugin has one file per kind it runs on (`server.ts`, `worker.ts`, `web.ts`, `tui.ts`). */
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export const KINDS = {
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server: { platform: "node" },
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worker: { platform: "node" },
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web: { platform: "browser", packages: { react: {}, "react/jsx-runtime": {} } },
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tui: { platform: "node" },
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} as const;
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/** The page: the app's own HTML around the assets the kit made (the base bundle, the plugins' scripts and styles). */
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function page(request: { readonly nonce: string }, assets: PageAssets): string {
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return `<!doctype html><html lang="en"><head><meta charset="utf-8"><title>Todo</title>${pageScripts(assets, request.nonce)}</head><body><div id="root"></div></body></html>`;
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}
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/** Starts the todo app on a free loopback port, with its data in `dataDir` and its built-in plugins in `root`. */
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export function startTodo(dataDir: string, root: string, context: Context): Promise<App<TodoPrincipal>> {
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return startServer<TodoPrincipal>(
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{
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name: "todo",
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dataDir,
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root,
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listen: { host: "127.0.0.1", port: 0 },
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api: API,
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kinds: KINDS,
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principal: { server: { kind: "server" }, worker: (address) => ({ kind: "worker", list: address.key }) },
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workers: [
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{
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kind: v1.List,
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entry: fileURLToPath(new URL("./worker.ts", import.meta.url)),
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execArgv: ["--conditions=source", "--experimental-strip-types", "--no-warnings"],
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start: () => ({}),
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// Who may reach a list's worker: everyone signed in, and the server itself.
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authorize: (principal) => principal.kind !== "worker",
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},
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],
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web: { entry: fileURLToPath(new URL("./src/web/main.ts", import.meta.url)), page },
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tui: { entry: fileURLToPath(new URL("./src/tui/main.ts", import.meta.url)) },
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onError: (error) => console.error("todo:", error.kind, error.error),
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},
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context,
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);
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}
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/** A data directory and a copy of the app's plugins, in a new temporary directory. */
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export async function todoDirectories(): Promise<{
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readonly base: string;
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readonly dataDir: string;
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readonly root: string;
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}> {
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const base = await mkdtemp(join(tmpdir(), "todo-"));
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const root = join(base, "plugins");
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await cp(fileURLToPath(new URL("./plugins/", import.meta.url)), root, { recursive: true });
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return { base, dataDir: join(base, "data"), root };
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}
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