import assert from 'node:assert/strict';
import { mkdtempSync, readFileSync, rmSync, writeFileSync } from 'node:fs';
import { tmpdir } from 'node:os';
import { join } from 'node:path';
import test from 'node:test';
import { loadServerConfig } from '../server/config.ts';

test('server and Mongo verifier can load the documented JSON configuration', () => {
  const example = new URL('../.config.example.json', import.meta.url);
  const config = loadServerConfig(example);
  assert.equal(config.port, 2027);
  assert.equal(config.visitStore, 'mongo');
  assert.equal(config.mongoDatabase, 'sunrise');
  assert.ok(config.allowedOrigins.includes('http://127.0.0.1:2027'));
});

test('missing or invalid configuration fails without exposing its contents', () => {
  const directory = mkdtempSync(join(tmpdir(), 'sunrise-config-'));
  const path = join(directory, '.config.json');
  try {
    assert.throws(() => loadServerConfig(path), /Cannot read/);
    writeFileSync(path, '{"mongoUri":"secret",');
    assert.throws(() => loadServerConfig(path), /^Error: Invalid JSON in .config.json$/);
    const example = JSON.parse(readFileSync(new URL('../.config.example.json', import.meta.url), 'utf8'));
    for (const override of [{ port: '2027' }, { port: 65536 }, { host: '' },
      { allowedOrigins: 'https://example.com' }, { visitStore: 'invalid' }, { mongoUri: null }]) {
      writeFileSync(path, JSON.stringify({ ...example, ...override }));
      assert.throws(() => loadServerConfig(path), /Invalid .config.json field/);
    }
  } finally {
    rmSync(directory, { recursive: true, force: true });
  }
});