import { describe, expect, it } from 'vitest';
import { validateDateFilters } from '../src/cli/flags.js';
import { loadConfigFromString } from '../src/config/config.js';

describe('config validation', () => {
  it('loads a valid YAML config with defaults', () => {
    const config = loadConfigFromString(`
gmail:
  folder: Newsletters
output:
  name: Newsletter Link Catalog
  excel:
    enabled: true
    path: ./output/catalog.xlsx
`);

    expect(config.gmail.folder).toBe('Newsletters');
    expect(config.links.trackingParams).toContain('utm_*');
    expect(config.enrichment.concurrency).toBe(3);
    expect(config.database.enabled).toBe(true);
    expect(config.database.path).toBe('./data/newsletter-catalog.sqlite');
  });

  it('treats comment-only YAML maps as empty objects', () => {
    const config = loadConfigFromString(`
gmail:
  folder: Newsletters
output:
  name: Newsletter Link Catalog
  excel:
    enabled: true
    path: ./output/catalog.xlsx
newsletters:
  # sender@example.com:
categories:
  custom:
    - Rust
  llm:
    # provider: anthropic
`);

    expect(config.newsletters).toEqual({});
    expect(config.categories.llm.provider).toBe('anthropic');
  });

  it('rejects conflicting relative and absolute date filters', () => {
    expect(() => validateDateFilters({ last: '30d', from: '2026-01-01' })).toThrow(
      /cannot be combined/i
    );
  });
});