import assert from 'node:assert/strict';
import test from 'node:test';
import {
  buildHealthEventNotificationCopy,
  formatHealthAlertsPreamble,
  isHealthAlertsAckText,
  shouldAttemptWechatNotification,
  shouldCreateWebNotification,
} from './health-event-notification.mjs';
import { createHealthEventNotificationService } from './health-event-notification-service.mjs';

test('notification severity policy matches O5', () => {
  assert.equal(shouldCreateWebNotification('info'), false);
  assert.equal(shouldCreateWebNotification('watch'), true);
  assert.equal(shouldCreateWebNotification('alert'), true);
  assert.equal(shouldAttemptWechatNotification('watch'), false);
  assert.equal(shouldAttemptWechatNotification('alert'), true);
});

test('buildHealthEventNotificationCopy avoids diagnosis wording', () => {
  const alertCopy = buildHealthEventNotificationCopy({
    severity: 'alert',
    message: 'bp_systolic 近 14 天偏离',
  });
  assert.match(alertCopy.body, /不是医疗诊断/);
  assert.match(alertCopy.body, /下次进入/);
});

test('formatHealthAlertsPreamble requires explicit acknowledgement', () => {
  const text = formatHealthAlertsPreamble([
    { severity: 'alert', message: '收缩压偏高' },
  ]);
  assert.match(text, /未读健康提醒/);
  assert.match(text, /知道了/);
  assert.equal(isHealthAlertsAckText('知道了'), true);
});

test('notification service creates web alert and attempts wechat', async () => {
  const calls = [];
  const service = createHealthEventNotificationService({
    createUserNotification: async (input) => {
      calls.push(['web', input.notificationType]);
      return input;
    },
    notificationDispatcher: {
      sendHealthEventNotification: async (input) => {
        calls.push(['wechat', input.severity]);
        return true;
      },
    },
  });

  const result = await service.notifyNewEvent(
    'user-1',
    {
      severity: 'alert',
      eventType: 'threshold_breach',
      ruleId: 'bp_sys_high',
      metricType: 'bp_systolic',
      message: '收缩压触发阈值',
    },
    { eventId: 9 },
  );

  assert.equal(result.webCreated, true);
  assert.equal(result.wechatSent, true);
  assert.deepEqual(calls, [
    ['web', 'health_event_alert'],
    ['wechat', 'alert'],
  ]);
});

test('notification service skips info severity', async () => {
  const service = createHealthEventNotificationService({
    createUserNotification: async () => {
      throw new Error('should not notify');
    },
  });
  const result = await service.notifyNewEvent('user-1', {
    severity: 'info',
    message: 'silent',
  });
  assert.equal(result.skipped, true);
});