/**
 * Case Submission Form Handler
 */

const form = document.getElementById('case-submission-form');
const submitButton = document.getElementById('submit-button');
const successMessage = document.getElementById('success-message');
const errorMessage = document.getElementById('error-message');

form.addEventListener('submit', async (e) => {
  e.preventDefault();

  // Hide previous messages
  successMessage.style.display = 'none';
  errorMessage.style.display = 'none';

  // Disable submit button
  submitButton.disabled = true;
  submitButton.textContent = 'Submitting...';

  // Collect form data
  const evidenceText = document.getElementById('case-evidence').value;
  const evidence = evidenceText
    ? evidenceText.split('\n').filter(line => line.trim())
    : [];

  const formData = {
    submitter: {
      name: document.getElementById('submitter-name').value,
      email: document.getElementById('submitter-email').value,
      organization: document.getElementById('submitter-organization').value || null,
      public: document.getElementById('submitter-public').checked
    },
    case_study: {
      title: document.getElementById('case-title').value,
      description: document.getElementById('case-description').value,
      failure_mode: document.getElementById('case-failure-mode').value,
      tractatus_applicability: document.getElementById('case-tractatus').value,
      evidence: evidence,
      attachments: []
    }
  };

  try {
    const response = await fetch('/api/cases/submit', {
      method: 'POST',
      headers: {
        'Content-Type': 'application/json'
      },
      body: JSON.stringify(formData)
    });

    const data = await response.json();

    if (response.ok) {
      // Success
      successMessage.textContent = data.message || 'Thank you for your submission. We will review it shortly.';
      successMessage.style.display = 'block';
      form.reset();
      window.scrollTo({ top: 0, behavior: 'smooth' });
    } else {
      // Error
      errorMessage.textContent = data.message || 'An error occurred. Please try again.';
      errorMessage.style.display = 'block';
      window.scrollTo({ top: 0, behavior: 'smooth' });
    }

  } catch (error) {
    console.error('Submit error:', error);
    errorMessage.textContent = 'Network error. Please check your connection and try again.';
    errorMessage.style.display = 'block';
    window.scrollTo({ top: 0, behavior: 'smooth' });
  } finally {
    // Re-enable submit button
    submitButton.disabled = false;
    submitButton.textContent = 'Submit Case Study';
  }
});