import { describe, it, expect, beforeEach, afterEach } from 'vitest';
import { mkdtempSync, rmSync, readdirSync } from 'node:fs';
import { tmpdir } from 'node:os';
import { join } from 'node:path';
import { openInMemoryForTest } from '../../src/lib/server/db';
import { addDomain, listDomains } from '../../src/lib/server/domains/repository';
import { ensureFavicons } from '../../src/lib/server/domains/favicons';

let imageDir: string;

beforeEach(() => {
  imageDir = mkdtempSync(join(tmpdir(), 'kochwas-favicon-'));
});

afterEach(() => {
  rmSync(imageDir, { recursive: true, force: true });
});

describe('ensureFavicons', () => {
  it('is a no-op when every domain already has a favicon_path', async () => {
    const db = openInMemoryForTest();
    const d = addDomain(db, 'example.com');
    // simulate already-stored favicon
    db.prepare('UPDATE allowed_domain SET favicon_path = ? WHERE id = ?').run(
      'favicon-abc.png',
      d.id
    );
    await ensureFavicons(db, imageDir);
    // No file written, no DB state changed
    expect(readdirSync(imageDir).length).toBe(0);
    const domains = listDomains(db);
    expect(domains[0].favicon_path).toBe('favicon-abc.png');
  });

});