import { expect, spyOn, test } from "bun:test";
import { mkdtemp, mkdir, rm, writeFile } from "node:fs/promises";
import { tmpdir } from "node:os";
import { join } from "node:path";
import { loadPlugins } from "../src/registry.ts";

const dir = join(import.meta.dir, "fixtures/plugins");

test("registry loads echo plugin and skips broken one", async () => {
  const warn = spyOn(console, "warn").mockImplementation(() => {});
  const reg = await loadPlugins([dir, join(dir, "does-not-exist")]);
  expect(reg.list().map((m) => m.id)).toEqual(["echo"]);
  expect(reg.get("echo")?.manifest.name).toBe("Echo");
  expect(reg.get("broken")).toBeUndefined();
  expect(warn.mock.calls.some((c) => String(c[0]).includes("broken"))).toBe(true);
  await reg.reload();
  expect(reg.list()).toHaveLength(1);
  warn.mockRestore();
});

test("duplicate ids across dirs keep the first", async () => {
  const warn = spyOn(console, "warn").mockImplementation(() => {});
  const reg = await loadPlugins([dir, dir]);
  expect(reg.list()).toHaveLength(1);
  warn.mockRestore();
});

test("reload picks up an edited entry file", async () => {
  const root = await mkdtemp(join(tmpdir(), "sttracker-plugins-"));
  try {
    await mkdir(join(root, "hot"));
    const write = (v: string) =>
      writeFile(join(root, "hot", "index.ts"), `export default { manifest: { id: "hot", name: "Hot", version: "${v}", sdkVersion: 1, mediaTypes: [], capabilities: [], config: [] } };\n`);
    await write("1.0.0");
    const reg = await loadPlugins([root]);
    expect(reg.get("hot")?.manifest.version).toBe("1.0.0");
    await new Promise((r) => setTimeout(r, 5));
    await write("2.0.0");
    await reg.reload();
    expect(reg.get("hot")?.manifest.version).toBe("2.0.0");
  } finally {
    await rm(root, { recursive: true, force: true });
  }
});