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

const source = fs.readFileSync('managed-alias-utils.js', 'utf8');
const scope = {};
const api = new Function('self', `${source}; return self.MultiPageManagedAliasUtils;`)(scope);

test('managed alias utils build gmail +tag email from full base email', () => {
  assert.equal(
    api.buildManagedAliasEmail('gmail', 'demo@gmail.com', 'riverstone'),
    'demo+riverstone@gmail.com'
  );
});

test('managed alias utils build 2925 email from full base email', () => {
  assert.equal(
    api.buildManagedAliasEmail('2925', 'demo@2925.com', '123456'),
    'demo123456@2925.com'
  );
});

test('managed alias utils validate provider email with or without configured base email', () => {
  assert.equal(api.isManagedAliasEmail('demo+riverstone@gmail.com', 'gmail', 'demo@gmail.com'), true);
  assert.equal(api.isManagedAliasEmail('demo123456@2925.com', '2925', 'demo@2925.com'), true);
  assert.equal(api.isManagedAliasEmail('manual@gmail.com', 'gmail', ''), true);
  assert.equal(api.isManagedAliasEmail('manual@qq.com', 'gmail', ''), false);
});

test('managed alias utils keep 2925 alias generation behind provide mode only', () => {
  assert.equal(api.normalizeMail2925Mode('provide'), 'provide');
  assert.equal(api.normalizeMail2925Mode('receive'), 'receive');
  assert.equal(api.normalizeMail2925Mode('other'), 'provide');
  assert.equal(api.usesManagedAliasGeneration('gmail'), true);
  assert.equal(api.usesManagedAliasGeneration('2925', { mail2925Mode: 'provide' }), true);
  assert.equal(api.usesManagedAliasGeneration('2925', { mail2925Mode: 'receive' }), false);
});