const test = require('node:test');
const assert = require('node:assert/strict');
const fs = require('node:fs');

const source = fs.readFileSync('background.js', 'utf8');

function extractFunction(name) {
  const markers = [`async function ${name}(`, `function ${name}(`];
  const start = markers
    .map((marker) => source.indexOf(marker))
    .find((index) => index >= 0);
  if (start < 0) {
    throw new Error(`missing function ${name}`);
  }

  let parenDepth = 0;
  let signatureEnded = false;
  let braceStart = -1;
  for (let i = start; i < source.length; i += 1) {
    const ch = source[i];
    if (ch === '(') {
      parenDepth += 1;
    } else if (ch === ')') {
      parenDepth -= 1;
      if (parenDepth === 0) {
        signatureEnded = true;
      }
    } else if (ch === '{' && signatureEnded) {
      braceStart = i;
      break;
    }
  }

  let depth = 0;
  let end = braceStart;
  for (; end < source.length; end += 1) {
    const ch = source[end];
    if (ch === '{') depth += 1;
    if (ch === '}') {
      depth -= 1;
      if (depth === 0) {
        end += 1;
        break;
      }
    }
  }

  return source.slice(start, end);
}

test('background account history settings are normalized independently from hotmail service mode', () => {
  const bundle = [
    extractFunction('normalizeHotmailLocalBaseUrl'),
    extractFunction('normalizeAccountRunHistoryHelperBaseUrl'),
    extractFunction('normalizePersistentSettingValue'),
  ].join('\n');

  const api = new Function(`
const DEFAULT_HOTMAIL_LOCAL_BASE_URL = 'http://127.0.0.1:17373';
const DEFAULT_ACCOUNT_RUN_HISTORY_HELPER_BASE_URL = DEFAULT_HOTMAIL_LOCAL_BASE_URL;
const DEFAULT_HOTMAIL_REMOTE_BASE_URL = '';
const HOTMAIL_SERVICE_MODE_REMOTE = 'remote';
const HOTMAIL_SERVICE_MODE_LOCAL = 'local';
const PERSISTED_SETTING_DEFAULTS = {
  autoStepDelaySeconds: null,
  mailProvider: '163',
};
function normalizePanelMode(value) { return value === 'sub2api' ? 'sub2api' : 'cpa'; }
function normalizeLocalCpaStep9Mode(value) { return value === 'bypass' ? 'bypass' : 'submit'; }
function normalizeCpaCallbackMode(value) { return value === 'step6' ? 'step6' : 'step8'; }
function normalizeAutoRunFallbackThreadIntervalMinutes(value) { return Number(value) || 0; }
function normalizeAutoRunDelayMinutes(value) { return Number(value) || 30; }
function normalizeAutoStepDelaySeconds(value) { return value == null || value === '' ? null : Number(value); }
function normalizeMailProvider(value) { return String(value || '').trim().toLowerCase() || '163'; }
function normalizeMail2925Mode(value) { return String(value || '').trim().toLowerCase() === 'receive' ? 'receive' : 'provide'; }
function normalizeEmailGenerator(value) { return String(value || '').trim().toLowerCase() || 'duck'; }
function normalizeIcloudHost(value) { const normalized = String(value || '').trim().toLowerCase(); return normalized === 'icloud.com' || normalized === 'icloud.com.cn' ? normalized : ''; }
function normalizeHotmailServiceMode(value) { return String(value || '').trim().toLowerCase() === 'remote' ? 'remote' : 'local'; }
function normalizeHotmailRemoteBaseUrl(value) { return String(value || '').trim(); }
function normalizeCloudflareDomain(value) { return String(value || '').trim(); }
function normalizeCloudflareDomains(value) { return Array.isArray(value) ? value : []; }
function normalizeCloudflareTempEmailBaseUrl(value) { return String(value || '').trim(); }
function normalizeCloudflareTempEmailReceiveMailbox(value) { return String(value || '').trim().toLowerCase(); }
function normalizeCloudflareTempEmailDomain(value) { return String(value || '').trim(); }
function normalizeCloudflareTempEmailDomains(value) { return Array.isArray(value) ? value : []; }
function normalizeHotmailAccounts(value) { return Array.isArray(value) ? value : []; }
${bundle}
return {
  normalizeAccountRunHistoryHelperBaseUrl,
  normalizePersistentSettingValue,
};
  `)();

  assert.equal(api.normalizePersistentSettingValue('accountRunHistoryTextEnabled', 1), true);
  assert.equal(
    api.normalizePersistentSettingValue('accountRunHistoryHelperBaseUrl', 'http://127.0.0.1:17373/append-account-log'),
    'http://127.0.0.1:17373'
  );
  assert.equal(
    api.normalizeAccountRunHistoryHelperBaseUrl(''),
    'http://127.0.0.1:17373'
  );
});