import { pathToFileURL } from "node:url";
import { mkdtemp, readFile, rm } from "node:fs/promises";
import { tmpdir } from "node:os";
import path from "node:path";

import { afterEach, describe, expect, it } from "vitest";

import { writeTechLogServingArtifact } from "../../scripts/lib/tech-log-serving-artifact.ts";

const roots: string[] = [];

afterEach(async () => {
  await Promise.all(roots.splice(0).map((root) => rm(root, { recursive: true })));
});

describe("TechLog serving artifact", () => {
  it("emits a self-contained deployment server and its route contract", async () => {
    const root = await mkdtemp(path.join(tmpdir(), "tech-log-serving-artifact-"));
    roots.push(root);
    const contract = {
      schemaVersion: 1 as const,
      publicSpaPaths: ["/", "/projects/auth-lab"],
      studioPathPrefix: "/studio" as const,
      studioSpaPathPatterns: ["^/studio$"],
      notFound: {
        status: 404 as const,
        contentType: "text/plain;charset=UTF-8" as const,
        body: "Not Found" as const,
      },
    };

    await writeTechLogServingArtifact({ distRoot: root, contract });

    expect(
      JSON.parse(
        await readFile(path.join(root, "tech-log-serving-contract.json"), "utf8"),
      ),
    ).toEqual(contract);
    const serverModule = await import(
      `${pathToFileURL(path.join(root, "server.mjs")).href}?test=${Date.now()}`
    );
    expect(serverModule.createTechLogProductionServer).toEqual(expect.any(Function));
  });
});