(function() {
  var visitsContainer = document.getElementById('cr-visits-container');
  var addVisitBtn = document.getElementById('cr-add-visit');
  var labsContainer = document.getElementById('cr-labs-container');
  var addLabBtn = document.getElementById('cr-add-lab');
  var generateBtn = document.getElementById('cr-generate-btn');
  var outputCard = document.getElementById('cr-output');
  var reviewText = document.getElementById('cr-review-text');
  var modelTag = document.getElementById('cr-model-tag');

  var visitIndex = 1;

  addVisitBtn.addEventListener('click', function() {
    visitIndex++;
    var card = document.createElement('div');
    card.className = 'card visit-card';
    card.innerHTML = '<div class="card-header"><h3><i class="fas fa-calendar"></i> Visit / Note #' + visitIndex + '</h3>' +
      '<button class="btn-sm btn-ghost remove-visit-btn"><i class="fas fa-trash"></i></button></div>' +
      '<div class="note-entry"><div class="note-meta">' +
      '<input type="date" class="visit-date">' +
      '<select class="visit-type"><option value="outpatient">Outpatient Visit</option><option value="subspecialty">Subspecialty Note</option><option value="ed">ED Visit</option></select>' +
      '<input type="text" class="visit-specialist" placeholder="Specialist name">' +
      '<input type="text" class="visit-specialty" placeholder="Specialty (e.g., Endocrinology)"></div>' +
      '<div class="editable-box visit-content" contenteditable="true" data-placeholder="Paste note here..."></div>' +
      '<input type="text" class="visit-labs" placeholder="Labs from this visit (optional)"></div>';
    visitsContainer.appendChild(card);
    card.querySelector('.remove-visit-btn').addEventListener('click', function() { card.remove(); });
  });

  document.querySelectorAll('.remove-visit-btn').forEach(function(btn) {
    btn.addEventListener('click', function() { btn.closest('.visit-card').remove(); });
  });

  addLabBtn.addEventListener('click', function() {
    var entry = document.createElement('div');
    entry.className = 'lab-entry';
    entry.innerHTML = '<input type="date" class="lab-date"><input type="text" class="lab-values" placeholder="Lab results...">' +
      '<button class="btn-sm btn-ghost" onclick="this.parentElement.remove()"><i class="fas fa-trash"></i></button>';
    labsContainer.appendChild(entry);
  });

  generateBtn.addEventListener('click', function() {
    var type = document.getElementById('cr-type').value;
    var visits = [];
    var subspecialty = [];
    var edVisits = [];

    visitsContainer.querySelectorAll('.visit-card').forEach(function(card) {
      var content = card.querySelector('.visit-content').innerText.trim();
      if (!content) return;
      var vType = card.querySelector('.visit-type').value;
      var entry = {
        date: card.querySelector('.visit-date').value || '',
        content: content,
        labs: card.querySelector('.visit-labs').value || ''
      };

      if (vType === 'subspecialty') {
        entry.specialistName = card.querySelector('.visit-specialist').value || '';
        entry.specialty = card.querySelector('.visit-specialty').value || '';
        subspecialty.push(entry);
      } else if (vType === 'ed') {
        edVisits.push(entry);
      } else {
        entry.type = 'outpatient';
        visits.push(entry);
      }
    });

    var labs = [];
    labsContainer.querySelectorAll('.lab-entry').forEach(function(entry) {
      var vals = entry.querySelector('.lab-values').value.trim();
      if (vals) labs.push({ date: entry.querySelector('.lab-date').value || '', values: vals });
    });

    if (visits.length === 0 && subspecialty.length === 0 && edVisits.length === 0) {
      showToast('Add at least one visit/note', 'error');
      return;
    }

    showLoading('Generating chart review...');

    fetch('/api/generate-chart-review', {
      method: 'POST',
      headers: getAuthHeaders(),
      body: JSON.stringify({
        type: type,
        visits: visits,
        subspecialty: subspecialty,
        edVisits: edVisits,
        labs: labs,
        patientAge: document.getElementById('cr-age').value,
        patientGender: document.getElementById('cr-gender').value,
        pmh: document.getElementById('cr-pmh').value,
        additionalInstructions: document.getElementById('cr-instructions').value,
        model: getSelectedModel()
      })
    })
    .then(function(r) { return r.json(); })
    .then(function(data) {
      hideLoading();
      if (data.success) {
        reviewText.textContent = data.review;
        modelTag.textContent = (data.model || '').split('/').pop();
        outputCard.classList.remove('hidden');
        outputCard.scrollIntoView({ behavior: 'smooth' });
        showToast('Chart review generated!', 'success');
      } else showToast(data.error || 'Failed', 'error');
    })
    .catch(function(err) { hideLoading(); showToast(err.message, 'error'); });
  });

  document.getElementById('cr-refine-btn').addEventListener('click', function() { refineDocument('cr-review-text', 'cr-refine-input'); });
  document.getElementById('cr-shorten-btn').addEventListener('click', function() { shortenDocument('cr-review-text'); });

  console.log('✅ Chart Review module loaded');
})();