import assert from 'node:assert/strict';
import test from 'node:test';

import {
  compactActivityJournalEvents,
  refreshStreakCopy,
} from '../../.test-dist/src/web/features/activity-journal/activityJournalModel.js';

function event(id, occurredAt, type = 'subscription.refreshed', data = {}) {
  return {
    id,
    occurredAt,
    type,
    severity: 'info',
    source: type.startsWith('subscription.') ? 'subscription' : 'connection',
    dedupeKey: null,
    data: type === 'subscription.refreshed'
      ? { profileLabel: 'Дом', serverCount: 8, added: 0, removed: 0, ...data }
      : data,
  };
}

test('adjacent unchanged refreshes become one observed success streak', () => {
  const items = compactActivityJournalEvents([
    event('newest', '2026-08-25T15:00:00.000Z', 'subscription.refreshed', { profileLabel: 'Дом' }),
    event('middle', '2026-08-25T13:30:00.000Z', 'subscription.refreshed', { profileLabel: 'Работа' }),
    event('oldest', '2026-08-25T12:00:00.000Z', 'subscription.refreshed', { profileLabel: 'Дом' }),
  ]);

  assert.equal(items.length, 1);
  assert.deepEqual(items[0].refreshStreak, {
    count: 3,
    firstOccurredAt: '2026-08-25T12:00:00.000Z',
    profileLabels: ['Дом', 'Работа'],
  });
  assert.deepEqual(refreshStreakCopy(items[0]), [
    'Подписки обновлялись без ошибок',
    '3 ч всё хорошо · 3 обновления · подписок: 2',
  ]);
});

test('another event and a changed server list break refresh streaks', () => {
  const items = compactActivityJournalEvents([
    event('routine-new', '2026-08-25T15:00:00.000Z'),
    event('started', '2026-08-25T14:50:00.000Z', 'connection.started', { profileLabel: 'Дом', serverLabel: 'Амстердам' }),
    event('changed', '2026-08-25T14:45:00.000Z', 'subscription.refreshed', { added: 1 }),
    event('routine-old', '2026-08-25T14:30:00.000Z'),
  ]);

  assert.equal(items.length, 4);
  assert.ok(items.every(({ refreshStreak }) => refreshStreak === null));
});

test('a local calendar-day boundary breaks an otherwise adjacent streak', () => {
  const newer = new Date(2026, 7, 25, 0, 5).toISOString();
  const older = new Date(2026, 7, 24, 23, 55).toISOString();
  const items = compactActivityJournalEvents([
    event('new-day', newer),
    event('old-day', older),
  ]);

  assert.equal(items.length, 2);
  assert.ok(items.every(({ refreshStreak }) => refreshStreak === null));
});

test('one-profile streak names the profile and keeps the latest event identity', () => {
  const items = compactActivityJournalEvents([
    event('newest', '2026-08-25T15:15:00.000Z'),
    event('oldest', '2026-08-25T15:00:00.000Z'),
  ]);

  assert.equal(items[0].event.id, 'newest');
  assert.deepEqual(refreshStreakCopy(items[0]), [
    'Подписки обновлялись без ошибок',
    '15 мин всё хорошо · 2 обновления · Дом',
  ]);
});