import { describe, it } from 'node:test';
import assert from 'node:assert/strict';
import { TwitterService } from '../src/platforms/twitter.service.js';

function stubTwitter() {
  const real = globalThis.fetch;
  (globalThis as any).fetch = async (url: string, _init?: any) => {
    if (url.includes('guest/activate')) {
      return { ok: true, json: async () => ({ guest_token: 'GUEST' }) };
    }
    if (url.includes('UserByScreenName')) {
      return {
        ok: true,
        json: async () => ({
          data: {
            user: {
              result: {
                legacy: {
                  name: 'NASA',
                  description: 'space',
                  followers_count: 10,
                  friends_count: 1,
                  statuses_count: 5,
                  verified: false,
                  created_at: 'yesterday',
                  location: 'DC',
                  url: null,
                },
              },
            },
          },
        }),
      };
    }
    if (url.includes('UserTweets')) {
      return {
        ok: true,
        json: async () => ({
          data: {
            user: {
              result: {
                timeline: {
                  timeline: {
                    instructions: [
                      {
                        entries: [
                          {
                            content: {
                              itemContent: {
                                tweet_results: {
                                  result: {
                                    legacy: { id_str: '1', full_text: 'hello world' },
                                  },
                                },
                              },
                            },
                          },
                        ],
                      },
                    ],
                  },
                },
              },
            },
          },
        }),
      };
    }
    throw new Error(`unexpected url ${url}`);
  };
  return () => {
    globalThis.fetch = real;
  };
}

describe('TwitterService', () => {
  it('maps UserByScreenName legacy to profile', async () => {
    const restore = stubTwitter();
    try {
      const out = (await new TwitterService().profile('nasa')) as any;
      assert.equal(out.found, true);
      assert.equal(out.name, 'NASA');
      assert.equal(out.followers, 10);
      assert.equal(out.profileUrl, 'https://x.com/nasa');
    } finally {
      restore();
    }
  });

  it('extracts tweet texts from timeline instructions', async () => {
    const restore = stubTwitter();
    try {
      const out = (await new TwitterService().tweets('nasa', 5)) as any;
      assert.equal(out.tweets.length, 1);
      assert.equal(out.tweets[0].text, 'hello world');
    } finally {
      restore();
    }
  });
});