import { describe, expect, it } from 'vitest';
import { readdirSync, readFileSync, statSync } from 'node:fs';
import { join } from 'node:path';

// Profile links must always go to mu.social, never to bsky.app. (API host
// public.api.bsky.app and CDN cdn.bsky.app are fine — they are not profile links,
// so they never match the "bsky.app/profile" needle below.)
const NEEDLE = 'bsky.app' + '/profile'; // split so this test file never matches itself

function walk(dir: string): string[] {
  const out: string[] = [];
  for (const name of readdirSync(dir)) {
    const p = join(dir, name);
    if (statSync(p).isDirectory()) out.push(...walk(p));
    else if (/\.(astro|ts|tsx|js|mjs|md)$/.test(name) && !name.includes('.test.')) out.push(p);
  }
  return out;
}

describe('profile links', () => {
  it('never point at bsky.app — profiles open on mu.social', () => {
    const offenders: string[] = [];
    for (const file of walk('src')) {
      readFileSync(file, 'utf8')
        .split('\n')
        .forEach((line, i) => {
          if (line.includes(NEEDLE)) offenders.push(`${file}:${i + 1}`);
        });
    }
    expect(offenders, `profile links must use mu.social:\n${offenders.join('\n')}`).toEqual([]);
  });
});