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import { mkdir, rename, rm, copyFile } from "node:fs/promises";
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import { join } from "node:path";
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import { createInterface } from "node:readline/promises";
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import { z } from "zod";
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const names = ["agents", "multi-work", "quota"] as const;
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const base = "./plugins/stanp-opencode";
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const entrySchema = z
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.object({ package: z.string(), options: z.record(z.string(), z.json()).optional() })
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.catchall(z.json());
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type Entry = z.infer<typeof entrySchema>;
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const pluginSchema = z.union([z.string(), entrySchema]);
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const registrationSchema = z
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.union([z.string().transform((packageName) => ({ package: packageName })), entrySchema])
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.pipe(entrySchema);
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const configSchema = z
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.object({ plugins: z.array(pluginSchema).optional(), $schema: z.string().optional() })
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.catchall(z.json());
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const nativePlugin = z.union([
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z.object({ id: z.string(), setup: z.function() }),
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z.object({ id: z.string(), effect: z.function() }),
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]);
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type DirectoryExports = { ".": string; "./tui"?: string };
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export async function install(source: string, config: string, selection?: string) {
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const absoluteBase = join(config, "plugins", "stanp-opencode");
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const monolith = (target: string) =>
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target === base || target === absoluteBase || /^stanp-opencode(?:@[^/]+)?$/.test(target);
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const owned = new Set(
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names.flatMap((name) => [
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`${base}/${name}`,
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`${absoluteBase}/${name}`,
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`stanp-opencode/${name}`,
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]),
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);
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const isOwned = (target: string) => monolith(target) || owned.has(target);
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const configFile = join(config, "opencode.json");
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const current = configSchema.parse(
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(await Bun.file(configFile).exists()) ? await Bun.file(configFile).json() : {},
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);
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const entries = current.plugins ?? [];
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// Normalize only the lookup view; unrelated entries retain their original representation.
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const configured = entries.map((entry) => registrationSchema.parse(entry));
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const previous = configured.filter((entry) => isOwned(entry.package));
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const oldMonolith = previous.some((entry) => monolith(entry.package));
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const retained = oldMonolith
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? names
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: names.filter((name) =>
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previous.some(
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(entry) =>
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entry.package === `${base}/${name}` ||
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entry.package === `${absoluteBase}/${name}` ||
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entry.package === `stanp-opencode/${name}`,
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),
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);
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let chosen: string[];
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if (selection !== undefined) chosen = selection.split(",");
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else if (process.stdin.isTTY) {
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const input = createInterface({ input: process.stdin, output: process.stdout });
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try {
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const defaults = retained.length ? retained : names;
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chosen = (
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(
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await input.question(
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`Plugins (agents,multi-work,quota) [${defaults.join(",")}]: `,
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)
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).trim() || defaults.join(",")
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).split(",");
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if (chosen.includes("multi-work") && !chosen.includes("agents")) {
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if (
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/^(y|yes)?$/i.test(
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(
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await input.question("Multi-work requires Agents. Add Agents? [Y/n]: ")
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).trim(),
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)
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)
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chosen.push("agents");
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}
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} finally {
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input.close();
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}
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} else {
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if (!retained.length)
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throw new Error(
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"Noninteractive installation requires --plugins agents,multi-work,quota (or a valid subset)",
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);
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chosen = [...retained];
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}
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if (
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!z.array(z.enum(names)).min(1).safeParse(chosen).success ||
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new Set(chosen).size !== chosen.length
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)
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throw new Error("Invalid --plugins selection; use unique names: agents,multi-work,quota");
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if (chosen.includes("multi-work") && !chosen.includes("agents"))
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throw new Error("Multi-work requires Agents; select agents,multi-work");
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const selected = names.filter((name) => chosen.includes(name));
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const registrations: Entry[] = selected.map((name) => {
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const prior = previous.find(
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(entry) =>
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entry.package === `${base}/${name}` ||
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entry.package === `${absoluteBase}/${name}` ||
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entry.package === `stanp-opencode/${name}` ||
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(name === "agents" && monolith(entry.package)),
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);
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const options: NonNullable<Entry["options"]> = {};
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if (name === "agents" && !prior?.options)
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Object.assign(options, { mode: "gpt", provider: "openai", lunaPriority: true });
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Object.assign(options, prior?.options);
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delete options.playwright;
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const entry = entrySchema.parse({ ...prior, package: `${base}/${name}` });
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delete entry.options;
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if (Object.keys(options).length) entry.options = options;
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return entry;
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});
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const first = configured.findIndex((entry) => isOwned(entry.package));
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const next = entries.filter((_entry, index) => !isOwned(configured[index]!.package));
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next.splice(first < 0 ? next.length : first, 0, ...registrations);
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const updated = {
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...current,
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$schema: current.$schema ?? "https://opencode.ai/config.json",
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plugins: next,
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};
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const parent = join(config, "plugins");
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await mkdir(parent, { recursive: true });
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const staged = join(parent, `.stanp-opencode.new.${process.pid}`);
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const backup = join(parent, `.stanp-opencode.old.${process.pid}`);
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const target = join(parent, "stanp-opencode");
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const configStage = join(config, `.stanp-opencode.config.${process.pid}`);
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let saved = false;
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let activated = false;
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try {
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await mkdir(staged);
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for (const name of selected) {
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const file = name === "quota" ? "quota-plugin" : name;
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const entrypoint = join(source, "dist", `${file}.js`);
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const { default: definition } = await import(entrypoint);
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const plugin = nativePlugin.parse(definition);
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if (plugin.id !== `stanp-opencode.${name}`)
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throw new Error(`Invalid native OpenCode plugin: ${name}`);
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const directory = join(staged, name);
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await mkdir(directory);
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await copyFile(entrypoint, join(directory, "index.js"));
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const exports: DirectoryExports = { ".": "./index.js" };
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if (name === "quota") {
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const tui = join(source, "dist", "tui.js");
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if (
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!new Bun.Transpiler({ loader: "js" })
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.scan(await Bun.file(tui).text())
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.exports.includes("default")
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)
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throw new Error("Quota lacks its TUI entrypoint");
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await copyFile(tui, join(directory, "tui.js"));
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exports["./tui"] = "./tui.js";
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}
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await Bun.write(
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join(directory, "package.json"),
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JSON.stringify({
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name: `stanp-opencode-${name}`,
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type: "module",
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main: "./index.js",
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exports,
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}),
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);
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}
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await Bun.write(configStage, JSON.stringify(updated, null, 4) + "\n");
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try {
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await rename(target, backup);
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saved = true;
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} catch (error) {
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if (!(error instanceof Error && "code" in error && error.code === "ENOENT"))
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throw error;
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}
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await rename(staged, target);
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activated = true;
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await rename(configStage, configFile);
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} catch (error) {
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if (activated) await rm(target, { recursive: true, force: true });
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if (saved) await rename(backup, target);
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throw error;
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} finally {
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await rm(staged, { recursive: true, force: true });
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await rm(configStage, { force: true });
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}
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if (saved) await rm(backup, { recursive: true, force: true });
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await rm(join(parent, "stanp-opencode.js"), { force: true });
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console.log(`Installed ${selected.join(", ")}. Restart OpenCode.`);
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if (oldMonolith)
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console.log(
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"Clean break: quota tracking resets; old Multi-work bindings cannot resume. Existing worktrees are untouched.",
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);
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}
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if (import.meta.main) {
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const [source, config, selection] = process.argv.slice(2);
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if (!source || !config) throw new Error("Expected package directory and config directory");
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await install(source, config, selection);
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}
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