var _inited = false;
  var MILESTONES_DATA = {}; // Will be loaded from API

  document.addEventListener('tabChanged', function(e) {
    if (e.detail.tab !== 'wellvisit' || _inited) return;
    _inited = true;
    initMilestones();
  });

  function initMilestones() {
  var ageSelect = document.getElementById('ms-age-group');
  var checklist = document.getElementById('milestone-checklist');
  var actionsBar = document.getElementById('milestone-actions');
  var allYesBtn = document.getElementById('ms-all-yes');
  var allClearBtn = document.getElementById('ms-all-clear');
  var generateBtn = document.getElementById('ms-generate-btn');
  var outputCard = document.getElementById('ms-output');
  var summaryBar = document.getElementById('ms-summary-bar');
  var narrativeText = document.getElementById('ms-narrative-text');
  var modelTag = document.getElementById('ms-model-tag');

  var state = {};

  // Load milestones from API (database), fallback to static data if empty
  fetch('/api/milestones-data', {
    headers: getAuthHeaders()
  })
  .then(function(r) { return r.json(); })
  .then(function(data) {
    if (data.success && data.milestones && Object.keys(data.milestones).length > 0) {
      // Database has milestones - use them
      MILESTONES_DATA = data.milestones;
      populateAgeGroups();
    } else {
      // Database empty - fallback to static data
      console.log('[Milestones] Database empty, using static data');
      if (typeof window.MILESTONES_DATA_STATIC !== 'undefined') {
        MILESTONES_DATA = window.MILESTONES_DATA_STATIC;
        populateAgeGroups();
      } else {
        showToast('Milestones data not available', 'error');
      }
    }
  })
  .catch(function(err) {
    console.error('[Milestones] Load error, falling back to static:', err);
    // Fallback to static data on API error
    if (typeof window.MILESTONES_DATA_STATIC !== 'undefined') {
      MILESTONES_DATA = window.MILESTONES_DATA_STATIC;
      populateAgeGroups();
    } else {
      showToast('Failed to load milestones: ' + err.message, 'error');
    }
  });

  function populateAgeGroups() {
    // Populate age group dropdown
    if (ageSelect && Object.keys(MILESTONES_DATA).length > 0) {
      ageSelect.innerHTML = '<option value="">Select age group</option>';
      Object.keys(MILESTONES_DATA).forEach(function(age) {
        var opt = document.createElement('option');
        opt.value = age;
        opt.textContent = age;
        ageSelect.appendChild(opt);
      });
    }
  }

  ageSelect.addEventListener('change', function() {
    var age = ageSelect.value;
    state = {};
    outputCard.classList.add('hidden');
    if (!age || !MILESTONES_DATA[age]) {
      checklist.innerHTML = '<p style="text-align:center;color:#9ca3af;padding:40px;">Select an age group.</p>';
      actionsBar.style.display = 'none';
      return;
    }
    renderChecklist(MILESTONES_DATA[age]);
    actionsBar.style.display = 'flex';
  });

  function safeId(s) { return s.replace(/[^a-zA-Z0-9]/g, '_'); }

  function renderChecklist(data) {
    checklist.innerHTML = '';
    Object.keys(data).forEach(function(domain) {
      var items = data[domain];
      var config = DOMAIN_CONFIG[domain] || { icon: '📋', css: '' };
      var section = document.createElement('div');
      section.className = 'domain-section ' + config.css;

      var html = '<div class="domain-header"><span>' + config.icon + '</span><span>' + domain +
        '</span><span class="badge" id="badge-' + safeId(domain) + '">' + items.length + ' items</span></div><div class="ms-items">';

      items.forEach(function(m, idx) {
        var id = domain + '-' + idx;
        state[id] = { domain: domain, milestone: m, status: null };
        html += '<div class="ms-item" id="item-' + safeId(id) + '">' +
          '<div class="ms-toggle">' +
          '<button class="toggle-btn" data-id="' + id + '" data-action="yes">✓</button>' +
          '<button class="toggle-btn" data-id="' + id + '" data-action="no">✗</button>' +
          '</div><span class="ms-text">' + m + '</span></div>';
      });

      section.innerHTML = html + '</div>';
      checklist.appendChild(section);
    });

    checklist.querySelectorAll('.toggle-btn').forEach(function(btn) {
      btn.addEventListener('click', function() { handleToggle(btn.getAttribute('data-id'), btn.getAttribute('data-action')); });
    });
  }

  function handleToggle(id, action) {
    var sid = safeId(id);
    var item = document.getElementById('item-' + sid);
    var yesBtn = item.querySelector('[data-action="yes"]');
    var noBtn = item.querySelector('[data-action="no"]');

    if (action === 'yes') {
      if (state[id].status === 'yes') { state[id].status = null; yesBtn.classList.remove('yes-on'); item.classList.remove('is-yes','is-no'); }
      else { state[id].status = 'yes'; yesBtn.classList.add('yes-on'); noBtn.classList.remove('no-on'); item.classList.add('is-yes'); item.classList.remove('is-no'); }
    } else {
      if (state[id].status === 'no') { state[id].status = null; noBtn.classList.remove('no-on'); item.classList.remove('is-yes','is-no'); }
      else { state[id].status = 'no'; noBtn.classList.add('no-on'); yesBtn.classList.remove('yes-on'); item.classList.remove('is-yes'); item.classList.add('is-no'); }
    }
    updateBadges();
  }

  function updateBadges() {
    var counts = {};
    Object.keys(state).forEach(function(id) {
      var d = state[id].domain;
      if (!counts[d]) counts[d] = { total: 0, yes: 0, no: 0 };
      counts[d].total++;
      if (state[id].status === 'yes') counts[d].yes++;
      if (state[id].status === 'no') counts[d].no++;
    });
    Object.keys(counts).forEach(function(d) {
      var b = document.getElementById('badge-' + safeId(d));
      if (b) { var c = counts[d]; b.textContent = (c.yes + c.no) > 0 ? c.yes + '✓ ' + c.no + '✗ / ' + c.total : c.total + ' items'; }
    });
  }

  allYesBtn.addEventListener('click', function() {
    Object.keys(state).forEach(function(id) {
      state[id].status = 'yes';
      var item = document.getElementById('item-' + safeId(id));
      if (item) { item.querySelector('[data-action="yes"]').classList.add('yes-on'); item.querySelector('[data-action="no"]').classList.remove('no-on'); item.classList.add('is-yes'); item.classList.remove('is-no'); }
    });
    updateBadges();
  });

  allClearBtn.addEventListener('click', function() {
    Object.keys(state).forEach(function(id) {
      state[id].status = null;
      var item = document.getElementById('item-' + safeId(id));
      if (item) { item.querySelector('[data-action="yes"]').classList.remove('yes-on'); item.querySelector('[data-action="no"]').classList.remove('no-on'); item.classList.remove('is-yes','is-no'); }
    });
    updateBadges();
    outputCard.classList.add('hidden');
  });

  generateBtn.addEventListener('click', function() {
    if (!ageSelect.value) { showToast('Select age group', 'error'); return; }
    var assessed = Object.values(state).filter(function(m) { return m.status !== null; });
    if (assessed.length === 0) { showToast('Assess at least one milestone', 'error'); return; }

    showBusy('Generating...');

    fetch('/api/generate-milestone-narrative', {
      method: 'POST',
      headers: getAuthHeaders(),
      body: JSON.stringify({
        milestones: Object.values(state),
        ageGroup: ageSelect.value,
        patientAge: document.getElementById('ms-age').value,
        patientGender: document.getElementById('ms-gender').value,
        format: document.getElementById('ms-format').value,
        model: getSelectedModel()
      })
    })
    .then(function(r) { return r.json(); })
    .then(function(data) {
      hideBusy();
      if (data.success) {
        setOutputText(narrativeText, data.narrative);
        modelTag.textContent = (data.model || '').split('/').pop();
        if (data.summary) {
          summaryBar.innerHTML = '<div class="stat"><span class="dot dot-green"></span> Achieved: ' + data.summary.achieved + '</div>' +
            '<div class="stat"><span class="dot dot-red"></span> Not Yet: ' + data.summary.notAchieved + '</div>' +
            '<div class="stat"><span class="dot dot-gray"></span> Not Assessed: ' + data.summary.notAssessed + ' (omitted)</div>';
          summaryBar.classList.remove('hidden');
        }
        outputCard.classList.remove('hidden');
        document.getElementById('ms-quick-summary').classList.add('hidden');
        outputCard.scrollIntoView({ behavior: 'smooth' });
        showToast('Generated!', 'success');
      } else showToast(data.error || 'Failed', 'error');
    })
    .catch(function(err) { hideBusy(); showToast(err.message, 'error'); });
  });

  // 3-sentence summary
  document.getElementById('ms-quick-summary-btn').addEventListener('click', function() {
    var narrative = narrativeText.innerText.trim();
    if (!narrative) { showToast('Generate narrative first', 'error'); return; }

    var btn = document.getElementById('ms-quick-summary-btn');
    btn.disabled = true;
    btn.innerHTML = '<i class="fas fa-spinner fa-spin"></i> Summarizing...';

    fetch('/api/generate-milestone-summary', {
      method: 'POST',
      headers: getAuthHeaders(),
      body: JSON.stringify({
        narrative: narrative,
        ageGroup: ageSelect.value,
        patientAge: document.getElementById('ms-age').value,
        patientGender: document.getElementById('ms-gender').value,
        model: getSelectedModel()
      })
    })
    .then(function(r) { return r.json(); })
    .then(function(data) {
      btn.disabled = false;
      btn.innerHTML = '<i class="fas fa-compress"></i> Regenerate Summary';
      if (data.success) {
        setOutputText('ms-summary-text', data.summary);
        document.getElementById('ms-quick-summary').classList.remove('hidden');
        showToast('Summary generated!', 'success');
      }
    })
    .catch(function(err) { btn.disabled = false; btn.innerHTML = '<i class="fas fa-compress"></i> 3-Sentence Summary'; showToast(err.message, 'error'); });
  });

  console.log('✅ Milestones module loaded');
  } // end initMilestones