#98 - Age Gating v0.1

<!-- 💙 MEMBERSCRIPT #98 v0.1 💙 AGE GATE -->
<script>
document.addEventListener('DOMContentLoaded', (event) => {
  const form = document.querySelector('form[ms-code-age-gate]');
  const dayInput = document.querySelector('input[ms-code-age-gate="day"]');
  const monthInput = document.querySelector('input[ms-code-age-gate="month"]');
  const yearInput = document.querySelector('input[ms-code-age-gate="year"]');
  const backButton = document.querySelector('a[ms-code-age-gate="back"]');
  const wrapper = document.querySelector('[ms-code-age-gate="wrapper"]');
  const errorDiv = document.querySelector('div[ms-code-age-gate="error"]');

  if (localStorage.getItem('ageVerified') === 'true') {
    wrapper.remove();
    return;
  }

  backButton.addEventListener('click', (e) => {
    e.preventDefault();
    window.history.back();
  });

  const inputs = [dayInput, monthInput, yearInput];

  inputs.forEach((input, index) => {
    input.addEventListener('keyup', (e) => {
      const maxChars = input === yearInput ? 4 : 2;
      let value = e.target.value;

      if (input === dayInput && value.length === maxChars) {
        value = value > 31 ? '31' : value.padStart(2, '0');
      } else if (input === monthInput && value.length === maxChars) {
        value = value > 12 ? '12' : value.padStart(2, '0');
      }
      e.target.value = value;

      if (value.length === maxChars) {
        const nextInput = inputs[index + 1];
        if (nextInput) {
          nextInput.focus();
        }
      }
    });
  });

  form.addEventListener('submit', (e) => {
    e.preventDefault();
    const enteredDate = new Date(yearInput.value, monthInput.value - 1, dayInput.value);
    const currentDate = new Date();
    const ageDifference = new Date(currentDate - enteredDate);
    const age = Math.abs(ageDifference.getUTCFullYear() - 1970);

    const ageLimit = parseInt(form.getAttribute('ms-code-age-gate').split('-')[1], 10);

    if (age >= ageLimit) {
      console.log('Age verified.');
      errorDiv.style.display = 'none';
      localStorage.setItem('ageVerified', 'true');
      wrapper.remove();
    } else {
      console.log('Age verification failed, user is under the age limit.');
      errorDiv.style.display = 'block';
    }
  });
});
</script>