import assert from 'node:assert/strict';
import test from 'node:test';
import pool from '../../db/mysql.js';
import monitoring from './monitoring.js';
import { clearOneOsMileageCache } from './oneos-api.js';

test('single-day monitoring merges all target rows and handles an empty target table', async (t) => {
  const previousUrl = process.env.ONEOS_MILEAGE_API_BASE_URL;
  const previousKey = process.env.ONEOS_MILEAGE_API_KEY;
  process.env.ONEOS_MILEAGE_API_BASE_URL = 'https://oneos.test';
  process.env.ONEOS_MILEAGE_API_KEY = 'test-key';
  t.after(() => {
    if (previousUrl === undefined) delete process.env.ONEOS_MILEAGE_API_BASE_URL;
    else process.env.ONEOS_MILEAGE_API_BASE_URL = previousUrl;
    if (previousKey === undefined) delete process.env.ONEOS_MILEAGE_API_KEY;
    else process.env.ONEOS_MILEAGE_API_KEY = previousKey;
    clearOneOsMileageCache();
  });
  let targets = [
    { id: 1, target_name: '目标A', plate_number: '粤A10001' },
    { id: 2, target_name: '目标B', plate_number: '粤A10001' },
  ];
  t.mock.method(pool, 'query', async (sql: string) => {
    if (sql.includes('tab_mileage_assessment_target')) return [targets, []];
    assert.ok(sql.includes('FROM vehicle_info vi'));
    return [[{ plate: '粤A10001', vin: 'test-vin' }], []];
  });
  t.mock.method(globalThis, 'fetch', async (_url: unknown, init: RequestInit) => {
    const { date } = JSON.parse(String(init.body));
    return Response.json({ code: 'SUCCESS', data: [{
      plateNumber: '粤A10001', date, status: 'NORMAL',
      dailyMileageKm: 12, totalMileageKm: 100, sourceProtocol: 'GB32960',
    }] });
  });
  for (const expectedTargets of [['目标A', '目标B'], []]) {
    clearOneOsMileageCache();
    const response = await monitoring.request('/?startDate=2026-09-16&endDate=2026-09-16&sourcePriority=instrument');
    assert.equal(response.status, 200);
    const payload = await response.json();
    assert.equal(payload.total, 1);
    assert.equal(payload.vehicles[0].dailyKm, 12);
    assert.deepEqual(payload.vehicles[0].targetNames, expectedTargets);
    targets = [];
  }
});