import { describe, expect, it } from 'vitest';
import { createSessionExportDownload } from '../extensions/reddit-session-exporter/session-export.js';

describe('createSessionExportDownload', () => {
  it('creates a JSON data URL that Chrome can download from a service worker', () => {
    const download = createSessionExportDownload([
      {
        name: 'reddit_session',
        value: 'secret',
        domain: '.reddit.com',
        path: '/',
        expirationDate: 1_800_000_000,
        httpOnly: true,
        secure: true,
        sameSite: 'lax',
      },
    ], {
      homeserver: 'https://matrix.redditspace.com',
      accessToken: 'matrix-secret',
      userId: '@t2_bot:reddit.com',
      capturedAt: 1_700_000_000_000,
    });

    expect(download.filename).toBe('redditbot-session.json');
    expect(download.url).toMatch(/^data:application\/json;charset=utf-8,/);
    expect(JSON.parse(decodeURIComponent(download.url.split(',')[1]))).toEqual({
      cookies: [
        {
          name: 'reddit_session',
          value: 'secret',
          domain: '.reddit.com',
          path: '/',
          expires: 1_800_000_000,
          httpOnly: true,
          secure: true,
          sameSite: 'lax',
        },
      ],
      matrix: {
        homeserver: 'https://matrix.redditspace.com',
        accessToken: 'matrix-secret',
        userId: '@t2_bot:reddit.com',
        capturedAt: 1_700_000_000_000,
      },
    });
  });

  it('refuses to create an incomplete dump without Matrix credentials', () => {
    expect(() => createSessionExportDownload([], null)).toThrow(/Reddit Chat/i);
  });
});