import { createServer } from "node:net";
import { once } from "node:events";
import { afterEach, describe, expect, it } from "vitest";
import { startHub } from "../../src/hub.js";
import { TEST_DATABASE_URL } from "./helpers.js";

const ENV_KEYS = [
  "DATABASE_URL",
  "ANTHROPIC_AUTH_TOKEN",
  "ANTHROPIC_API_KEY",
  "FEISHU_APP_ID",
  "FEISHU_APP_SECRET",
  "FEISHU_BOT_OPEN_ID",
  "HUB_PROJECT_WORKSPACE_ROOT",
  "HUB_SESSION_SECRET",
  "HUB_PUBLIC_BASE_URL",
  "HUB_FEISHU_LISTENER_ENABLED",
  "HOST",
  "PORT",
] as const;

describe("Hub startup", () => {
  const previousEnv = new Map(ENV_KEYS.map((key) => [key, process.env[key]]));

  afterEach(() => {
    for (const [key, value] of previousEnv) {
      if (value === undefined) delete process.env[key];
      else process.env[key] = value;
    }
  });

  it("rejects startup before the Feishu listener when the HTTP bind fails", async () => {
    const blocker = createServer();
    blocker.listen(0, "127.0.0.1");
    await once(blocker, "listening");
    const address = blocker.address();
    if (address === null || typeof address === "string") throw new Error("expected an INET test listener");

    Object.assign(process.env, {
      DATABASE_URL: TEST_DATABASE_URL,
      ANTHROPIC_AUTH_TOKEN: "test-provider-token",
      ANTHROPIC_API_KEY: "",
      FEISHU_APP_ID: "test-app",
      FEISHU_APP_SECRET: "test-secret",
      FEISHU_BOT_OPEN_ID: "ou_test_bot",
      HUB_PROJECT_WORKSPACE_ROOT: "/tmp/cph-hub-server-start-test",
      HUB_SESSION_SECRET: "integration-session-secret-with-32-bytes",
      HUB_PUBLIC_BASE_URL: "https://hub.example.test",
      HUB_FEISHU_LISTENER_ENABLED: "false",
      HOST: "127.0.0.1",
      PORT: String(address.port),
    });

    try {
      await expect(startHub()).rejects.toMatchObject({ code: "EADDRINUSE" });
    } finally {
      blocker.close();
      await once(blocker, "close");
    }
  });
});