import { describe, expect, it } from 'vitest';
import { presentActivityItem, resolveRedditUsername } from '../../src/web/reddit-identities.js';

const resolver = {
  resolveSenderDisplay(identity: string) {
    return identity.replace(/^@?t2_known(?::reddit\.com)?$/, 'alice');
  },
};

describe('Reddit identity presentation', () => {
  it('resolves internal ids and rejects unresolved ids', () => {
    expect(resolveRedditUsername('@t2_known:reddit.com', resolver)).toBe('alice');
    expect(resolveRedditUsername('t2_missing', resolver)).toBeNull();
  });

  it('upgrades both the activity recipient and its persisted message text', () => {
    expect(presentActivityItem({
      timestamp: 1,
      type: 'response',
      message: 'Reply from u/t2_known',
      recipient: 't2_known',
    }, resolver)).toEqual({
      timestamp: 1,
      type: 'response',
      message: 'Reply from u/alice',
      recipient: 'alice',
    });
  });

  it('redacts unresolved ids instead of exposing them', () => {
    const item = presentActivityItem({
      timestamp: 1,
      type: 'response',
      message: 'Reply from @t2_missing:reddit.com',
      recipient: 't2_missing',
    }, resolver);

    expect(item.message).toBe('Reply from Reddit user');
    expect(item.recipient).toBeUndefined();
  });
});