import { mkdtempSync, writeFileSync } from "node:fs";
import { tmpdir } from "node:os";
import { resolve } from "node:path";
import { describe, expect, it } from "vitest";
import { waitForFile } from "./process-readiness.mjs";

describe("process endpoint readiness", () => {
  it("allows a cold endpoint to start after the legacy 30-second boundary", async () => {
    const path = resolve(mkdtempSync(resolve(tmpdir(), "peach-ready-test-")), "port");
    const child = { exitCode: null, diagnostics: { stdout: "gradle startup", stderr: "" } };
    setTimeout(() => writeFileSync(path, "49142"), 35);

    await expect(waitForFile(path, child, 90, 1)).resolves.toBe("49142");
  });

  it("includes endpoint output when readiness times out", async () => {
    const path = resolve(mkdtempSync(resolve(tmpdir(), "peach-ready-test-")), "port");
    const child = { exitCode: null, diagnostics: { stdout: "gradle startup", stderr: "daemon busy" } };

    await expect(waitForFile(path, child, 5, 1)).rejects.toThrow(/gradle startup.*daemon busy/);
  });
});