import { afterEach, beforeEach, describe, it, expect } from 'bun:test';

// ─── BrowserManager basic unit tests ─────────────────────────────

describe('BrowserManager defaults', () => {
  it('getConnectionMode defaults to launched', async () => {
    const { BrowserManager } = await import('../src/browser-manager');
    const bm = new BrowserManager();
    expect(bm.getConnectionMode()).toBe('launched');
  });

  it('getRefMap returns empty array initially', async () => {
    const { BrowserManager } = await import('../src/browser-manager');
    const bm = new BrowserManager();
    expect(bm.getRefMap()).toEqual([]);
  });
});

// ─── shouldEnableChromiumSandbox ─────────────────────────────────
//
// Pinning this is what prevents the "--no-sandbox" yellow infobar from
// regressing on headed launches. Playwright auto-adds --no-sandbox when
// chromiumSandbox !== true (playwright-core chromium.js:291-292), so all
// three launch sites in browser-manager.ts must pass the policy this
// helper computes.

describe('shouldEnableChromiumSandbox', () => {
  const origPlatform = process.platform;
  const origCI = process.env.CI;
  const origContainer = process.env.CONTAINER;
  const origGetuid = process.getuid;

  beforeEach(() => {
    delete process.env.CI;
    delete process.env.CONTAINER;
  });

  afterEach(() => {
    Object.defineProperty(process, 'platform', { value: origPlatform });
    if (origCI === undefined) delete process.env.CI; else process.env.CI = origCI;
    if (origContainer === undefined) delete process.env.CONTAINER; else process.env.CONTAINER = origContainer;
    process.getuid = origGetuid;
  });

  function setPlatform(p: NodeJS.Platform) {
    Object.defineProperty(process, 'platform', { value: p });
  }

  it('darwin, no CI/CONTAINER/root → true', async () => {
    setPlatform('darwin');
    process.getuid = (() => 501) as typeof process.getuid;
    const { shouldEnableChromiumSandbox } = await import('../src/browser-manager');
    expect(shouldEnableChromiumSandbox()).toBe(true);
  });

  it('linux, no CI/CONTAINER/root → true', async () => {
    setPlatform('linux');
    process.getuid = (() => 1000) as typeof process.getuid;
    const { shouldEnableChromiumSandbox } = await import('../src/browser-manager');
    expect(shouldEnableChromiumSandbox()).toBe(true);
  });

  it('win32 → false (sandbox fails in Bun→Node→Chromium chain)', async () => {
    setPlatform('win32');
    process.getuid = (() => 1000) as typeof process.getuid;
    const { shouldEnableChromiumSandbox } = await import('../src/browser-manager');
    expect(shouldEnableChromiumSandbox()).toBe(false);
  });

  it('linux + CI=1 → false', async () => {
    setPlatform('linux');
    process.env.CI = '1';
    process.getuid = (() => 1000) as typeof process.getuid;
    const { shouldEnableChromiumSandbox } = await import('../src/browser-manager');
    expect(shouldEnableChromiumSandbox()).toBe(false);
  });

  it('linux + CONTAINER=1 → false', async () => {
    setPlatform('linux');
    process.env.CONTAINER = '1';
    process.getuid = (() => 1000) as typeof process.getuid;
    const { shouldEnableChromiumSandbox } = await import('../src/browser-manager');
    expect(shouldEnableChromiumSandbox()).toBe(false);
  });

  it('linux + root (uid 0) → false', async () => {
    setPlatform('linux');
    process.getuid = (() => 0) as typeof process.getuid;
    const { shouldEnableChromiumSandbox } = await import('../src/browser-manager');
    expect(shouldEnableChromiumSandbox()).toBe(false);
  });
});