import { test } from 'node:test';
import assert from 'node:assert/strict';
import { createClientAnalytics } from '../src/client/analytics.js';

test('client sends batches at 20 events or five seconds and limits activity including visibility toggles', async t => {
  t.mock.timers.enable({ apis: ['setInterval', 'Date'], now: 1000 });
  const doc = new EventTarget() as EventTarget & { hidden: boolean; referrer: string };
  doc.hidden = false; doc.referrer = '';
  Object.defineProperty(globalThis, 'document', { value: doc, configurable: true });
  Object.defineProperty(globalThis, 'location', { value: { search: '' }, configurable: true });
  const batches: any[][] = [], activities: boolean[] = [];
  const analytics = createClientAnalytics({
    events: async events => { batches.push(events); }, activity: async visible => { activities.push(visible); },
  });
  const flush = async () => { for (let i = 0; i < 5; i++) await Promise.resolve(); };
  try {
    analytics.ready();
    await flush();
    assert.equal(batches.length, 0);
    for (let i = 0; i < 19; i++) analytics.screen('match');
    await flush(); assert.equal(batches[0].length, 20);
    analytics.screen('result');
    t.mock.timers.tick(4999); await flush(); assert.equal(batches.length, 1);
    t.mock.timers.tick(1); await flush(); assert.equal(batches[1].length, 1);
    for (let i = 0; i < 10; i++) { doc.hidden = true; doc.dispatchEvent(new Event('visibilitychange')); doc.hidden = false; doc.dispatchEvent(new Event('visibilitychange')); }
    await flush(); assert.deepEqual(activities, [true, false]);
    t.mock.timers.tick(55000); await flush(); assert.deepEqual(activities, [true, false, true]);
  } finally { analytics.destroy(); Reflect.deleteProperty(globalThis, 'document'); Reflect.deleteProperty(globalThis, 'location'); }
});