import { describe, expect, it } from 'vitest';

import {
  STORES_CACHE_TTL_MS,
  buildStoresCacheKey,
  isStoresCacheFresh,
} from '../../../lib/pricing/geo-cache.js';

describe('geo-cache', () => {
  it('builds stable cache keys for the same coordinates', () => {
    const a = buildStoresCacheKey(40.12345, -74.98765, 16093);
    const b = buildStoresCacheKey(40.12345, -74.98765, 16093);
    expect(a).toBe(b);
    expect(a.length).toBeLessThanOrEqual(64);
  });

  it('treats fresh cache entries as valid within TTL', () => {
    const fetchedAt = new Date(Date.now() - STORES_CACHE_TTL_MS + 1000);
    expect(isStoresCacheFresh(fetchedAt)).toBe(true);
  });

  it('expires cache entries after TTL', () => {
    const fetchedAt = new Date(Date.now() - STORES_CACHE_TTL_MS - 1);
    expect(isStoresCacheFresh(fetchedAt)).toBe(false);
  });

  it('rejects invalid fetched_at values', () => {
    expect(isStoresCacheFresh(null)).toBe(false);
    expect(isStoresCacheFresh('not-a-date')).toBe(false);
  });
});