'use strict';
/**
 * Integration: /api/client-errors — приём браузерных ошибок в error_log (level='client').
 */
const { describe, it, before, after } = require('node:test');
const assert = require('node:assert/strict');
const { app, inject, getToken, db, cleanup } = require('./setup');

app.use('/api/client-errors', require('../src/routes/clientErrors'));
after(() => cleanup());

describe('/api/client-errors', () => {
  let student;
  before(async () => { student = await getToken('student'); });

  it('требует авторизацию (401)', async () => {
    const res = await inject('POST', '/api/client-errors', { message: 'x' }, null);
    assert.equal(res.status, 401);
  });

  it('пустое сообщение → 400', async () => {
    const res = await inject('POST', '/api/client-errors', { message: '   ' }, student.token);
    assert.equal(res.status, 400);
  });

  it('пишет ошибку в error_log с level=client', async () => {
    const res = await inject('POST', '/api/client-errors', {
      kind: 'error', message: 'TypeError: x is null',
      stack: 'at foo (app.js:10:5)', source: '/js/app.js', line: 10, col: 5,
      url: '/lab?sim=demo#x',
    }, student.token);
    assert.equal(res.status, 200);
    assert.equal(res.body.ok, true);

    const row = db.prepare(
      "SELECT * FROM error_log WHERE level='client' AND user_id=? ORDER BY id DESC LIMIT 1"
    ).get(student.userId);
    assert.ok(row, 'строка должна появиться');
    assert.equal(row.message, 'TypeError: x is null');
    assert.equal(row.route, '/lab?sim=demo#x');
    assert.equal(row.method, 'error');
    assert.match(row.stack, /app\.js:10:5/);
  });

  it('unhandledrejection → method=rejection, stack из source при отсутствии stack', async () => {
    const res = await inject('POST', '/api/client-errors', {
      kind: 'unhandledrejection', message: 'boom', source: '/js/x.js', line: 3, col: 1, url: '/dashboard',
    }, student.token);
    assert.equal(res.status, 200);
    const row = db.prepare(
      "SELECT * FROM error_log WHERE level='client' AND message='boom' ORDER BY id DESC LIMIT 1"
    ).get();
    assert.equal(row.method, 'rejection');
    assert.match(row.stack, /x\.js:3:1/);
  });

  it('длинные поля обрезаются (не падает)', async () => {
    const res = await inject('POST', '/api/client-errors', {
      message: 'M'.repeat(5000), stack: 'S'.repeat(20000), url: 'U'.repeat(2000),
    }, student.token);
    assert.equal(res.status, 200);
    const row = db.prepare("SELECT * FROM error_log WHERE level='client' ORDER BY id DESC LIMIT 1").get();
    assert.ok(row.message.length <= 1000);
    assert.ok(row.stack.length <= 4000);
    assert.ok(row.route.length <= 400);
  });
});