// ── GLOBAL STATE ──────────────────────────────────────────────────────────────
let currentTool = 'sop';
let currentStep = 1;
let sopComplete = false;
let allComments = [];

// Per-project storage key: 'wp_suite_sop' → 'wp_suite_sop__<projId>' when a
// project is active. Keeps each project's SOP separate in the browser.
function SK(base){ try { return (typeof ProjectData !== 'undefined' && ProjectData.key) ? ProjectData.key(base) : base; } catch(e){ return base; } }

let state = {
  project: {name:'', number:'', client:'', division:'', site:''},
  team: {pm:'', apm:'', cm:'', qm:''},
  teamMembers: [],
  signoffRoles: [{role:'Superintendent',name:''},{role:'Foreman',name:''}],
  wpTypes: [],
  governance: {woformat:'', wosize:'', issuance:[], disciplines:['Mechanical','Electrical','Tech'], discMode:'choice', instanceSuffix:'letter', sizeHoursMax:''},
  quality: {qcreq:'', photo:'', hold:''},
  platforms: {tracking:'CxAlloy', commissioning:'CxAlloy'},
  sequence: [],
  constraints: [],
  sources: []
};

let sop = null; // Generated SOP for WP tool

// ── LIBRARIES ─────────────────────────────────────────────────────────────────
const DEFAULT_WP_TYPES = [
  {name:'Rough-In', enabled:true},
  {name:'Mechanical Install', enabled:true},
  {name:'Panel Install', enabled:true},
  {name:'Conduit Install', enabled:true},
  {name:'Tray Install', enabled:true},
  {name:'Mechanical Tubing', enabled:false},
  {name:'Instrument Install', enabled:true},
  {name:'Wire Pull', enabled:true},
  {name:'Terminations', enabled:true},
  {name:'Prefab/Kitting', enabled:false},
  {name:'Network Cabling', enabled:false},
  {name:'Fiber', enabled:false},
  {name:'Calibrations', enabled:false}
];

const STANDARD_10_CONSTRAINTS = [
  {name:'Safety & Permitting', description:'Permits, safety reviews, environmental clearances'},
  {name:'Quality Control / Inspection', description:'QC approval, inspection readiness'},
  {name:'IFC Drawings & Specs', description:'Issued-for-Construction drawings and specifications'},
  {name:'Schedule', description:'Scheduled sequence timing confirmed'},
  {name:'Materials (on site, bagged & tagged)', description:'All required materials on site and staged'},
  {name:'Prefabrication', description:'Prefabricated assemblies complete'},
  {name:'Work Access & Laydown', description:'Work area accessible and staged'},
  {name:'Craft Availability', description:'Required craft trades available'},
  {name:'Construction Equipment & Tools', description:'Special equipment and tools on site'},
  {name:'Scaffolding / Access Equipment', description:'Temporary access structures in place'}
];

const CONSTRAINT_LIBRARY = [
  'Utility Clearances',
  'Third-Party Approvals',
  'Engineering Change Notices',
  'Commissioning Sign-Off',
  'As-Built Documentation',
  'Labeling & Identification',
  'Testing & Certification',
  'Rework Completion',
  'Coordination with Other Trades',
  'Environmental Controls',
  'Critical Path Gate',
  'Client Walkthrough Approval'
];

const OPTIONAL_ROLES = [
  'Assistant Project Manager',
  'General Foreman',
  'Construction Manager',
  'HSE Professional',
  'Quality Representative',
  'Planner',
  'Safety Manager',
  'Project Controls Manager'
];

const LABOR_COST_CODES = [
  '1000|Project Management',
  '2000|Design and Development',
  '2100|Design',
  '2110|Control System Design',
  '2120|Instrument Design',
  '2130|Electrical Design',
  '2140|Panel Design',
  '2141|Panel Design Rework',
  '2150|BIM',
  '2151|BIM Rework',
  '2160|Documentation',
  '2200|Development',
  '2210|PLC Programming',
  '2220|OIT Programming',
  '2230|SCADA Programming',
  '2240|Simulation Development',
  '2300|Customer Training',
  '3000|Operational Technology',
  '3100|OT Design',
  '3200|Rack Assembly',
  '3300|Network Configuration',
  '3400|Computer Configuration',
  '4000|Construction',
  '4010|Instruments Install',
  '4020|Network & Computers Install',
  '4040|PLC Install',
  '4050|Panel Install',
  '4060|Electrical Install',
  '4070|Mechanical Install',
  '4080|Security Install',
  '4090|Radio Install',
  '4100|Commissioning',
  '6000|Production',
  '7000|Quality',
  '7100|Panel Quality Control',
  '7200|Factory Acceptance Testing',
  '7300|Site Acceptance Testing',
  '8000|Safety',
  '9000|Administration'
];

// ── INITIALIZATION ────────────────────────────────────────────────────────────
window.addEventListener('DOMContentLoaded',()=>{
  initializeWPTypes();
  renderTeamMembers();
  renderOptionalRoles();
  renderStandardConstraints();
  renderSequenceSteps();
  renderSources();
  // Resolve the active project FIRST so per-project storage keys are correct
  // before we restore this project's SOP.
  const params = new URLSearchParams(window.location.search);
  applyProjectContext(params.get('project'));
  restoreSavedSOP();
  updateStepUI();
  updateProjectDisplay();

  // Deep-link: ?tab=sop | ?tab=wp | ?view=dashboard from the home page.
  const tab = params.get('tab');
  if(params.get('view') === 'dashboard') switchTool('wp');
  else if(tab === 'wp' || tab === 'sop') switchTool(tab);

  track('app_open');
  let _fieldTimer;
  document.addEventListener('input', e=>{
    const t = e.target;
    if(t && t.id && /^(INPUT|SELECT|TEXTAREA)$/.test(t.tagName)){
      clearTimeout(_fieldTimer);
      _fieldTimer = setTimeout(()=> track('field_edit', {field:t.id}), 600);
    }
  });
});
window.addEventListener('beforeunload', trackStepDwell);

function initializeWPTypes(){
  state.wpTypes = JSON.parse(JSON.stringify(DEFAULT_WP_TYPES)).map(t=>({...t,notes:'',approval:''}));
  renderWPTypes();
}

// ── LOAD SAMPLE DATA ──────────────────────────────────────────────────────────
function loadSampleData(){
  // Populate Step 1
  document.getElementById('proj_name').value = 'MICRON_PH1_CUP_HPM_FMCS INSTALL';
  document.getElementById('proj_number').value = '26-67-008';
  document.getElementById('proj_client').value = 'Micron Technology, Inc.';
  document.getElementById('proj_division').value = 'Semiconductor';
  document.getElementById('proj_site').value = 'Boise, ID — Fab 7';

  // Populate Step 2
  document.getElementById('proj_pm').value = 'Mariano Sanchez';
  document.getElementById('proj_apm').value = 'Assistant PM';
  document.getElementById('proj_cm').value = 'K. Boyd';
  document.getElementById('proj_qm').value = 'D. Nguyen';
  
  // Step 3 already has defaults
  document.getElementById('role_super_name').value = 'John Smith';
  document.getElementById('role_foreman_name').value = 'Mike Jones';
  
  // Populate Step 5
  document.getElementById('gov_woformat').value = 'WP##-[Sector]-[TYPE]';
  document.getElementById('gov_wosize').value = '3–5 days / 40–80 hours';
  document.getElementById('gov_disciplines').value = 'Mechanical, Electrical, Tech';
  document.getElementById('gov_discmode').value = 'choice';
  document.getElementById('gov_size_hours_max').value = '120';
  
  // Populate Step 6
  document.getElementById('qual_qcreq').value = 'Yes — Detailed inspection items';
  document.getElementById('qual_photo').value = 'Key checkpoints only';
  document.getElementById('qual_hold').value = 'HOLD: Prime QAQC to inspect rough-in before cover/cover-up.\nWITNESS: Client QC to observe megger test before energization.';
  
  // Step 7 already has defaults
  
  // Collect all data
  collectStepData();
  track('sample_loaded');

  alert('✓ Sample data loaded!\n\nNavigate through the SOP steps to see example values. You can edit or replace any field.');
  
  // Switch to step 1
  currentStep = 1;
  updateStepUI();
  updateProjectDisplay();
}

// ── RESTORE A COMPLETED SOP (for "Review" + WP tab across reloads) ─────────────
function restoreSavedSOP(){
  let savedState = null, savedSop = null, complete = false;
  try {
    complete = localStorage.getItem(SK('wp_suite_sop_complete')) === '1';
    savedState = JSON.parse(localStorage.getItem(SK('wp_suite_state')) || 'null');
    savedSop = JSON.parse(localStorage.getItem(SK('wp_suite_sop')) || 'null');
  } catch(e){}
  if(!complete || !savedState) return;

  state = savedState;
  sop = savedSop;
  sopComplete = true;

  // Re-render dynamic lists from restored state.
  renderWPTypes();
  renderTeamMembers();
  renderOptionalRoles();
  renderStandardConstraints();
  renderSequenceSteps();
  renderSources();
  repopulateForm();

  if(typeof onSOPReady === 'function') onSOPReady(sop);
}

// Push restored state values back into the static form inputs.
function repopulateForm(){
  const set = (id,val)=>{ const el=document.getElementById(id); if(el!=null && val!=null) el.value = val; };
  set('proj_name', state.project.name);
  set('proj_number', state.project.number);
  set('proj_client', state.project.client);
  set('proj_division', state.project.division);
  set('proj_site', state.project.site);
  set('proj_pm', state.team.pm);
  set('proj_apm', state.team.apm);
  set('proj_cm', state.team.cm);
  set('proj_qm', state.team.qm);
  if(state.signoffRoles[0]) set('role_super_name', state.signoffRoles[0].name);
  if(state.signoffRoles[1]) set('role_foreman_name', state.signoffRoles[1].name);
  set('gov_woformat', state.governance.woformat);
  set('gov_wosize', state.governance.wosize);
  set('gov_disciplines', (state.governance.disciplines||[]).join(', '));
  set('gov_discmode', state.governance.discMode);
  set('gov_size_hours_max', state.governance.sizeHoursMax);
  set('qual_qcreq', state.quality.qcreq);
  set('qual_photo', state.quality.photo);
  set('qual_hold', state.quality.hold);
  set('plat_tracking', state.platforms.tracking);
  set('plat_commissioning', state.platforms.commissioning);
}

// ── TOOL SWITCHING ────────────────────────────────────────────────────────────
function switchTool(tool){
  currentTool = tool;
  
  // Update nav tabs
  document.querySelectorAll('.nav-tab').forEach(t=>t.classList.remove('active'));
  document.querySelector(`[data-tab="${tool}"]`).classList.add('active');
  
  // Update content
  document.querySelectorAll('.tool').forEach(t=>t.classList.remove('active'));
  document.getElementById(`tool-${tool}`).classList.add('active');
  
  // Reset step counter
  if(tool === 'sop'){
    document.getElementById('total-steps').textContent = '10';
  }else{
    document.getElementById('total-steps').textContent = '—';
  }

  if(tool === 'wp') renderWPTab();

  updateStepUI();
  updateProjectDisplay();
}

// Show the gate or the embedded Work Package Creator depending on SOP status.
function renderWPTab(){
  const gate = document.getElementById('wp-gate');
  const frame = document.getElementById('wp-frame');
  if(!gate || !frame) return;
  if(sopComplete){
    gate.style.display = 'none';
    frame.style.display = 'block';
    // Reload each time so the creator picks up the latest SOP from localStorage.
    const sp = new URLSearchParams(window.location.search);
    const wantDash = sp.get('view') === 'dashboard';
    const projId = sp.get('project') || (activeProject && activeProject.id) || '';
    frame.src = 'wp-creation-index.html?embedded=1' + (wantDash ? '&view=dashboard' : '')
      + (projId ? '&project=' + encodeURIComponent(projId) : '') + '&t=' + Date.now();
  }else{
    gate.style.display = 'block';
    frame.style.display = 'none';
  }
}

// Called from completeSOP / restoreSavedSOP once an SOP is available.
function onSOPReady(){
  if(currentTool === 'wp') renderWPTab();
}

// Active project comes from the home page (?project=<id> + ProjectData.getActive()).
// When the SOP's project fields are still empty, prefill them from the project
// record so the SOP is authored against the chosen project.
let activeProject = null;
function applyProjectContext(projectId){
  try {
    if(typeof ProjectData !== 'undefined'){
      if(projectId && ProjectData.getActiveId() !== projectId){
        // Deep-linked to a project that isn't the cached active one. Seed the id
        // immediately so namespaced storage keys resolve, then fetch the full record.
        const cached = ProjectData.getActive();
        ProjectData.setActive(cached && cached.id === projectId ? cached : { id: projectId });
        ProjectData.get(projectId).then(p => { if(p){ activeProject = p; ProjectData.setActive(p); prefillProjectFields(); updateProjectDisplay(); } });
      }
      activeProject = ProjectData.getActive();
    }
  } catch(e){}
  prefillProjectFields();
}
function prefillProjectFields(){
  if(!activeProject) return;
  const set = (id,v)=>{ const el=document.getElementById(id); if(el && !el.value && v) el.value = v; };
  set('proj_name', activeProject.name);
  set('proj_number', activeProject.number);
  set('proj_client', activeProject.client);
  set('proj_division', activeProject.division);
  set('proj_site', activeProject.site);
  if(typeof state !== 'undefined' && state.project){
    state.project.name = state.project.name || activeProject.name || '';
    state.project.number = state.project.number || activeProject.number || '';
    state.project.client = state.project.client || activeProject.client || '';
    state.project.division = state.project.division || activeProject.division || '';
    state.project.site = state.project.site || activeProject.site || '';
  }
}
function updateProjectDisplay(){
  const projName = document.getElementById('proj_name')?.value || (activeProject && activeProject.name) || 'Project';
  const display = document.getElementById('project-display');
  if(display) display.textContent = sopComplete ? `✓ ${projName} (SOP Ready)` : projName;
}

// ── RENDERING (SOP) ────────────────────────────────────────────────────────────
function renderWPTypes(){
  const container = document.getElementById('wp-types-table');
  container.innerHTML = `<div class="wp-types-header">
    <div>Work Order Type</div>
    <div style="text-align:center;">Enabled</div>
    <div>Special Rules / Notes</div>
    <div>WO Complete Approval</div>
  </div>`;
  state.wpTypes.forEach((t,i)=>{
    const row = document.createElement('div');
    row.className = 'wp-type-row';
    row.innerHTML = `
      <div style="font-weight:600;">${t.name}</div>
      <div style="text-align:center;"><input type="checkbox" ${t.enabled?'checked':''} onchange="toggleWPType(${i})" style="width:18px; height:18px; cursor:pointer;"></div>
      <input type="text" placeholder="Special rules…" value="${(t.notes||'').replace(/"/g,'&quot;')}" onchange="state.wpTypes[${i}].notes=this.value" style="padding:0.5rem; border:1px solid var(--border); border-radius:4px;">
      <input type="text" placeholder="PM / CM / QC…" value="${(t.approval||'').replace(/"/g,'&quot;')}" onchange="state.wpTypes[${i}].approval=this.value" style="padding:0.5rem; border:1px solid var(--border); border-radius:4px;">
    `;
    container.appendChild(row);
  });
}

function toggleWPType(i){
  state.wpTypes[i].enabled = !state.wpTypes[i].enabled;
  renderWPTypes();
}

function renderTeamMembers(){
  const container = document.getElementById('team-members-list');
  if(!container) return;
  container.innerHTML = state.teamMembers.map((m,i)=>`
    <div style="display:grid; grid-template-columns:1fr 1fr 30px; gap:1rem; align-items:center; padding:0.75rem; background:var(--bg); border-radius:6px; margin-bottom:0.5rem; border:1px solid var(--border);">
      <input type="text" placeholder="Role / title (e.g., Scheduler)" value="${(m.role||'').replace(/"/g,'&quot;')}" onchange="state.teamMembers[${i}].role=this.value" style="padding:0.5rem; border:1px solid var(--border); border-radius:4px;">
      <input type="text" placeholder="Name" value="${(m.name||'').replace(/"/g,'&quot;')}" onchange="state.teamMembers[${i}].name=this.value" style="padding:0.5rem; border:1px solid var(--border); border-radius:4px;">
      <button style="background:var(--danger); color:white; padding:0.25rem; width:30px; height:30px; border:none; border-radius:4px; cursor:pointer; font-weight:600;" onclick="removeTeamMember(${i})">✕</button>
    </div>
  `).join('');
}

function addTeamMember(){
  state.teamMembers.push({role:'',name:''});
  renderTeamMembers();
}

function removeTeamMember(i){
  state.teamMembers.splice(i,1);
  renderTeamMembers();
}

function renderOptionalRoles(){
  const container = document.getElementById('optional-roles-list');
  const current = state.signoffRoles.filter(r=>r.role!=='Superintendent'&&r.role!=='Foreman');
  container.innerHTML = current.map((r,i)=>`
    <div style="display:grid; grid-template-columns:1fr 200px 30px; gap:1rem; align-items:center; padding:0.75rem; background:var(--bg); border-radius:6px; margin-bottom:0.5rem; border:1px solid var(--border);">
      <select onchange="state.signoffRoles[${state.signoffRoles.indexOf(r)}].role=this.value">
        ${OPTIONAL_ROLES.map(o=>`<option ${r.role===o?'selected':''}>${o}</option>`).join('')}
      </select>
      <input type="text" placeholder="Name (optional)" value="${r.name||''}" onchange="state.signoffRoles[${state.signoffRoles.indexOf(r)}].name=this.value">
      <button class="row-del" style="background:var(--danger); color:white; padding:0.25rem; width:30px; height:30px; border:none; border-radius:4px; cursor:pointer;" onclick="removeRole(${state.signoffRoles.indexOf(r)})">✕</button>
    </div>
  `).join('');
}

function addOptionalRole(){
  state.signoffRoles.push({role:'General Foreman',name:''});
  renderOptionalRoles();
}

function removeRole(i){
  state.signoffRoles.splice(i,1);
  renderOptionalRoles();
}

function renderStandardConstraints(){
  const container = document.getElementById('standard-constraints');
  container.innerHTML = STANDARD_10_CONSTRAINTS.map(c=>`
    <div style="display:flex; align-items:start; gap:0.75rem; padding:0.75rem; background:var(--bg); border:1px solid var(--border); border-radius:6px; margin-bottom:0.5rem;">
      <input type="checkbox" id="const_${c.name}" checked onchange="toggleConstraint('${c.name}')" style="width:18px; height:18px; cursor:pointer; margin-top:0.2rem;">
      <div style="flex:1;">
        <label for="const_${c.name}" style="margin:0; font-weight:600; display:block; cursor:pointer;">${c.name}</label>
        <div style="font-size:12px; color:var(--text-dim); margin-top:0.25rem;">${c.description}</div>
      </div>
    </div>
  `).join('');
  state.constraints = STANDARD_10_CONSTRAINTS.map(c=>({...c}));
}

function toggleConstraint(name){
  const idx = state.constraints.findIndex(c=>c.name===name);
  if(idx>=0) state.constraints.splice(idx,1);
  else state.constraints.push(STANDARD_10_CONSTRAINTS.find(c=>c.name===name));
}

function showConstraintLibrary(){
  const modal = document.getElementById('constraint-modal');
  const lib = document.getElementById('constraint-library');
  lib.innerHTML = CONSTRAINT_LIBRARY.map(c=>`
    <div class="constraint-option" style="padding:0.75rem; background:var(--bg); border:1px solid var(--border); border-radius:6px; margin-bottom:0.5rem; cursor:pointer; transition:all 0.2s;" onmouseover="this.style.borderColor='var(--primary)'; this.style.background='var(--primary-light)'" onmouseout="this.style.borderColor='var(--border)'; this.style.background='var(--bg)'" onclick="addCustomConstraint('${c}')">
      <strong>${c}</strong>
      <div style="font-size:12px; color:var(--text-light); margin-top:0.25rem;">Click to add to this project</div>
    </div>
  `).join('');
  modal.style.display = 'flex';
}

function closeConstraintModal(){
  document.getElementById('constraint-modal').style.display = 'none';
}

function addCustomConstraint(name){
  if(!state.constraints.find(c=>c.name===name)){
    state.constraints.push({name,description:''});
  }
  closeConstraintModal();
  renderStandardConstraints();
}

const DEFAULT_SEQUENCE = ['Layout','Conduit Install','Tray Install','Wire Pull','Device Install','Termination','QC Inspection','Commissioning'];

let seqDragIndex = null;
function renderSequenceSteps(){
  const container = document.getElementById('sequence-list');
  if(!container) return;
  if(!state.sequence.length) state.sequence = DEFAULT_SEQUENCE.map(s=>({label:s,kind:'step'}));
  container.innerHTML = '';
  let stepNo = 0;
  state.sequence.forEach((item,i)=>{
    const isGate = item.kind==='gate';
    if(!isGate) stepNo++;
    const row = document.createElement('div');
    row.className = 'seq-step' + (isGate?' gate':'');
    row.draggable = true;
    row.dataset.idx = i;
    const badge = isGate ? `<span class="seq-gate-badge" title="QC / hold gate">◆ HOLD</span>`
                         : `<span class="seq-num">${stepNo}</span>`;
    row.innerHTML = `
      <span class="seq-handle" title="Drag to reorder">⠿</span>
      ${badge}
      <input type="text" class="seq-label" value="${(item.label||'').replace(/"/g,'&quot;')}" oninput="state.sequence[${i}].label=this.value">
      <button class="seq-del" title="Remove" onclick="removeSeqStep(${i})">✕</button>`;
    row.addEventListener('dragstart',e=>{ seqDragIndex=i; row.classList.add('dragging'); e.dataTransfer.effectAllowed='move'; });
    row.addEventListener('dragend',()=>{ row.classList.remove('dragging'); document.querySelectorAll('.seq-step').forEach(s=>s.classList.remove('drag-over')); });
    row.addEventListener('dragover',e=>{ e.preventDefault(); row.classList.add('drag-over'); e.dataTransfer.dropEffect='move'; });
    row.addEventListener('dragleave',()=>row.classList.remove('drag-over'));
    row.addEventListener('drop',e=>{
      e.preventDefault(); row.classList.remove('drag-over');
      const from=seqDragIndex, to=i;
      if(from===null||from===to) return;
      const moved=state.sequence.splice(from,1)[0];
      state.sequence.splice(to,0,moved);
      seqDragIndex=null; renderSequenceSteps();
    });
    container.appendChild(row);
    if(i<state.sequence.length-1){ const a=document.createElement('div'); a.className='seq-arrow'; a.textContent='↓'; container.appendChild(a); }
  });
}

function addSequenceStep(){
  const inp = document.getElementById('seq-add-input');
  const v = (inp && inp.value || '').trim();
  state.sequence.push({label: v || 'New Step', kind:'step'});
  if(inp) inp.value = '';
  renderSequenceSteps();
}

function addSequenceGate(){
  state.sequence.push({label:'QC Hold', kind:'gate'});
  renderSequenceSteps();
}

function removeSeqStep(i){
  state.sequence.splice(i,1);
  renderSequenceSteps();
}

const DEFAULT_SOURCES = [
  {label:'Design Drawings', ph:'e.g. Procore, Bluebeam'},
  {label:'Spool Drawings', ph:'e.g. SharePoint, BIM'},
  {label:'Installation Detail Drawings', ph:'e.g. Prime details + Micron MVDs'},
  {label:'IO List', ph:'e.g. controls.dev, Excel'},
  {label:'Cable Schedule', ph:'e.g. Excel on SharePoint'},
  {label:'Conduit Schedule', ph:'e.g. Excel on SharePoint'},
  {label:'Tray Schedule', ph:'e.g. Excel on SharePoint'},
  {label:'Datasheets', ph:'e.g. Procore'},
  {label:'Specifications', ph:'e.g. client portal'},
  {label:'Asset Register', ph:'e.g. CxAlloy, Excel'},
  {label:'RFIs', ph:'e.g. Procore RFI log'},
  {label:'Safety Documentation', ph:'e.g. site safety binder'}
];

// Escape a value for safe use inside a double-quoted HTML attribute.
// SharePoint "Copy Link" URLs contain & (and labels/notes may contain & " < >),
// so attribute values must be escaped or a re-render corrupts the field.
function escAttr(v){ return String(v==null?'':v).replace(/&/g,'&amp;').replace(/</g,'&lt;').replace(/>/g,'&gt;').replace(/"/g,'&quot;'); }
function renderSources(){
  const container = document.getElementById('sources-list');
  if(!state.sources.length) state.sources = DEFAULT_SOURCES.map(s=>({label:s.label, system:'', notes:'', link:'', ph:s.ph}));
  container.innerHTML = state.sources.map((s,i)=>`
    <div style="display:grid; grid-template-columns:150px 150px 250px 150px 30px; gap:1rem; align-items:center; padding:1rem; background:var(--bg); border-radius:6px; margin-bottom:0.5rem; border:1px solid var(--border);">
      <input type="text" value="${escAttr(s.label)}" placeholder="Label" onchange="state.sources[${i}].label=this.value" style="padding:0.5rem; font-size:12px; border:1px solid var(--border); border-radius:4px;">
      <input type="text" value="${escAttr(s.system)}" placeholder="${escAttr(s.ph||'System of record')}" onchange="state.sources[${i}].system=this.value" style="padding:0.5rem; font-size:12px; border:1px solid var(--border); border-radius:4px;">
      <input type="text" value="${escAttr(s.link)}" placeholder="Paste SharePoint 'Copy Link' URL" onchange="state.sources[${i}].link=this.value" style="padding:0.5rem; font-size:12px; border:1px solid var(--border); border-radius:4px;">
      <input type="text" value="${escAttr(s.notes)}" placeholder="Notes" onchange="state.sources[${i}].notes=this.value" style="padding:0.5rem; font-size:12px; border:1px solid var(--border); border-radius:4px;">
      <button style="background:var(--danger); color:white; padding:0.25rem; width:30px; height:30px; border:none; border-radius:4px; cursor:pointer; font-weight:600;" onclick="state.sources.splice(${i},1); renderSources()">✕</button>
    </div>
  `).join('');
}

function addSource(){
  state.sources.push({label:'',system:'',notes:'',link:''});
  renderSources();
}

// ── STEP NAVIGATION ────────────────────────────────────────────────────────────
function goToStep(n){
  if(!validateStep(currentStep)) return;
  currentStep = n;
  updateStepUI();
}

function nextStep(){
  if(!validateStep(currentStep)) return;
  if(currentStep < 10){
    currentStep++;
    updateStepUI();
  }
}

function previousStep(){
  if(currentStep > 1){
    currentStep--;
    updateStepUI();
  }
}

function updateStepUI(){
  trackStepDwell();
  track('step_view', {step: currentStep});
  // SOP steps
  document.querySelectorAll('[id^="sop-step-"]').forEach(s=>s.style.display='none');
  document.getElementById(`sop-step-${currentStep}`)?.style.display && (document.getElementById(`sop-step-${currentStep}`).style.display='block');
  
  // Step indicators
  document.querySelectorAll('.step-item').forEach(s=>s.classList.remove('active'));
  document.querySelector(`[data-step="${currentStep}"]`)?.classList.add('active');
  
  // Update counter
  document.getElementById('current-step').textContent = currentStep;
  
  // Update buttons
  document.getElementById('sop-prev-btn').disabled = currentStep === 1;
  document.getElementById('sop-next-btn').style.display = currentStep < 10 ? 'block' : 'none';
  document.getElementById('sop-complete-btn').style.display = currentStep === 10 ? 'block' : 'none';
  
  // Collect form data
  collectStepData();
}

function collectStepData(){
  switch(currentStep){
    case 1:
      state.project.name = document.getElementById('proj_name').value;
      state.project.number = document.getElementById('proj_number').value;
      state.project.client = document.getElementById('proj_client').value;
      state.project.division = document.getElementById('proj_division').value;
      state.project.site = document.getElementById('proj_site').value;
      break;
    case 2:
      state.team.pm = document.getElementById('proj_pm').value;
      state.team.apm = document.getElementById('proj_apm').value;
      state.team.cm = document.getElementById('proj_cm').value;
      state.team.qm = document.getElementById('proj_qm').value;
      break;
    case 3:
      state.signoffRoles[0].name = document.getElementById('role_super_name').value;
      state.signoffRoles[1].name = document.getElementById('role_foreman_name').value;
      break;
    case 5:
      state.governance.woformat = document.getElementById('gov_woformat').value;
      state.governance.wosize = document.getElementById('gov_wosize').value;
      const sel = document.getElementById('gov_issuance');
      state.governance.issuance = Array.from(sel.selectedOptions).map(o=>o.value);
      state.governance.disciplines = (document.getElementById('gov_disciplines').value||'')
        .split(',').map(d=>d.trim()).filter(Boolean);
      state.governance.discMode = document.getElementById('gov_discmode').value;
      state.governance.sizeHoursMax = document.getElementById('gov_size_hours_max').value;
      break;
    case 6:
      state.quality.qcreq = document.getElementById('qual_qcreq').value;
      state.quality.photo = document.getElementById('qual_photo').value;
      state.quality.hold = document.getElementById('qual_hold').value;
      break;
    case 7:
      state.platforms.tracking = document.getElementById('plat_tracking').value;
      state.platforms.commissioning = document.getElementById('plat_commissioning').value;
      break;
  }
}

function validateStep(n){
  collectStepData();
  const proj = state.project;
  
  if(n===1 && (!proj.name || !proj.number || !proj.client || !proj.division || !proj.site)){
    alert('Please complete all required fields: Project Name, Number, Client, Division, and Site Location.');
    return false;
  }
  if(n===5 && !state.governance.woformat){
    alert('Please enter a Work Package Number Format.');
    return false;
  }
  if(n===6 && !state.quality.qcreq){
    alert('Please select a QC requirement.');
    return false;
  }
  return true;
}

// ── SOP COMPLETION ────────────────────────────────────────────────────────────
function completeSOP(){
  if(!validateStep(10)) return;
  collectStepData();
  
  sop = {
    meta: {tool:'Work Package Configuration', sample:false},
    project: {
      name: state.project.name,
      number: state.project.number,
      client: state.project.client,
      division: state.project.division,
      pm: state.team.pm,
      apm: state.team.apm,
      cm: state.team.cm,
      qm: state.team.qm,
      site: state.project.site,
      teamMembers: state.teamMembers.filter(m=>(m.role||m.name))
    },
    roles: state.signoffRoles.filter(r=>r.role),
    governance: {
      issuance: state.governance.issuance.length ? state.governance.issuance : ['By Sector / Area'],
      woSize: state.governance.wosize,
      woFormat: state.governance.woformat,
      disciplines: (state.governance.disciplines && state.governance.disciplines.length)
        ? state.governance.disciplines : ['Mechanical','Electrical','Tech'],
      discMode: state.governance.discMode || 'choice',
      instanceSuffix: state.governance.instanceSuffix || 'letter',
      sizeHoursMax: state.governance.sizeHoursMax || ''
    },
    woTypes: state.wpTypes.filter(t=>t.enabled).map(t=>({
      name: t.name,
      enabled: true,
      notes: t.notes || '',
      approval: t.approval || ''
    })),
    sources: state.sources.filter(s=>s.label),
    field: {trackPlatform: state.platforms.tracking},
    commissioning: {tool: state.platforms.commissioning},
    quality: {
      qcReq: state.quality.qcreq,
      photo: state.quality.photo,
      holdPoints: state.quality.hold,
      cxTool: state.platforms.commissioning
    },
    sequence: state.sequence.filter(s=>s.label).map(s=>({
      label: s.label,
      kind: s.kind || 'step'
    })),
    costCodes: LABOR_COST_CODES,
    constraints: state.constraints.map(c=>({name: c.name, description: c.description || ''}))
  };
  
  sopComplete = true;
  updateProjectDisplay();

  // Persist for the home page (green / "Review") and for the WP Creator tab,
  // namespaced to the active project so each project keeps its own SOP.
  try {
    localStorage.setItem(SK('wp_suite_sop'), JSON.stringify(sop));
    localStorage.setItem(SK('wp_suite_state'), JSON.stringify(state));
    localStorage.setItem(SK('wp_suite_sop_complete'), '1');
  } catch(e){}

  track('sop_generated', {woTypes: sop.woTypes.length, constraints: sop.constraints.length});

  alert('✓ SOP Configuration Complete!\n\nSwitch to "Work Package Creation" to start creating Work Packages.');

  // Hand the SOP to the embedded Work Package Creator and unlock its tab.
  if(typeof onSOPReady === 'function') onSOPReady(sop);
}

// ── COMMENTS ──────────────────────────────────────────────────────────────────
function toggleComments(){
  const panel = document.getElementById('comments-panel');
  panel.style.display = panel.style.display === 'none' ? 'block' : 'none';
  if(panel.style.display === 'block') loadStepComments();
}

function submitComment(){
  const name = document.getElementById('commenter-name').value || 'Anonymous';
  const text = document.getElementById('comment-text').value.trim();
  
  if(!text){ alert('Please enter a comment.'); return; }
  
  const comment = {
    step: currentStep,
    name: name,
    text: text,
    timestamp: new Date().toLocaleString()
  };
  
  allComments.push(comment);
  localStorage.setItem('wp_suite_comments', JSON.stringify(allComments));
  if(window.postFeedback) window.postFeedback({type:'sop_step_comment', ...comment});

  document.getElementById('comment-text').value = '';
  document.getElementById('commenter-name').value = '';
  loadStepComments();
  alert('✓ Comment submitted!');
}

function exportComments(){
  const saved = localStorage.getItem('wp_suite_comments');
  const data = saved ? JSON.parse(saved) : [];
  if(!data.length){ alert('No comments to export yet.'); return; }
  const payload = {app:'Work Package Suite', source:'sop', exportedAt:new Date().toISOString(), comments:data};
  const blob = new Blob([JSON.stringify(payload,null,2)], {type:'application/json'});
  const a = document.createElement('a');
  a.href = URL.createObjectURL(blob);
  a.download = 'wp-suite-comments-sop-' + new Date().toISOString().slice(0,10) + '.json';
  a.click();
  setTimeout(()=>URL.revokeObjectURL(a.href), 1000);
}

function importComments(ev){
  const f = ev.target.files && ev.target.files[0];
  if(!f) return;
  const r = new FileReader();
  r.onload = ()=>{
    try{
      const inc = JSON.parse(r.result);
      const incoming = Array.isArray(inc) ? inc : (inc.comments || []);
      if(!incoming.length){ alert('No comments found in that file.'); return; }
      const saved = localStorage.getItem('wp_suite_comments');
      allComments = saved ? JSON.parse(saved) : [];
      const seen = new Set(allComments.map(c=>c.step+'|'+c.timestamp+'|'+c.text));
      let added = 0;
      incoming.forEach(c=>{ const k=c.step+'|'+c.timestamp+'|'+c.text; if(c.text && !seen.has(k)){ allComments.push(c); seen.add(k); added++; }});
      localStorage.setItem('wp_suite_comments', JSON.stringify(allComments));
      loadStepComments();
      alert('Imported ' + added + ' comment' + (added===1?'':'s') + '.');
    }catch(e){ alert('Could not read that file.'); }
    ev.target.value = '';
  };
  r.readAsText(f);
}

function loadStepComments(){
  const saved = localStorage.getItem('wp_suite_comments');
  if(saved) allComments = JSON.parse(saved);

  const stepComments = allComments.filter(c=>c.step===currentStep);
  const list = document.getElementById('comments-list');

  if(stepComments.length === 0){
    list.innerHTML = '<div style="font-size:12px; color:var(--text-dim); font-style:italic;">No comments yet on this step.</div>';
  }else{
    list.innerHTML = stepComments.map(c=>`
      <div style="padding:0.5rem; background:white; border:1px solid var(--border); border-radius:4px; margin-bottom:0.5rem;">
        <div style="font-size:11px; color:var(--text-dim); margin-bottom:0.25rem;"><strong>${c.name}</strong> • ${c.timestamp}</div>
        <div style="font-size:12px; color:var(--text);">${c.text.replace(/</g,'&lt;').replace(/>/g,'&gt;')}</div>
      </div>
    `).join('');
  }
}

// ── USAGE ANALYTICS ─────────────────────────────────────────────────────────
// Lightweight usage analytics stored in localStorage so the tool owner can review
// engagement over time. No field VALUES are stored (field-edit events record only
// the field id), keeping captured data non-sensitive.
const ANALYTICS_KEY = 'wp_suite_analytics_v1';
let _stepEnter = Date.now();
const _session = 's_' + Date.now().toString(36) + Math.random().toString(36).slice(2,6);

function analyticsLoad(){
  try { return JSON.parse(localStorage.getItem(ANALYTICS_KEY)) || {events:[]}; }
  catch(e){ return {events:[]}; }
}
function analyticsSave(data){
  try { localStorage.setItem(ANALYTICS_KEY, JSON.stringify(data)); }
  catch(e){ /* storage unavailable — degrade silently */ }
}
function track(event, detail){
  try {
    const data = analyticsLoad();
    data.events.push({ ts: new Date().toISOString(), session: _session, event, detail: detail||null });
    if(data.events.length > 5000) data.events = data.events.slice(-5000);
    analyticsSave(data);
  } catch(e){}
}
function trackStepDwell(){
  const ms = Date.now() - _stepEnter;
  if(ms > 400 && ms < 1000*60*60) track('step_dwell', {step: currentStep, ms});
  _stepEnter = Date.now();
}
function analyticsSummary(){
  const data = analyticsLoad();
  const byEvent = {}, byStep = {}, dwell = {}, sessions = new Set();
  data.events.forEach(e=>{
    byEvent[e.event] = (byEvent[e.event]||0)+1;
    sessions.add(e.session);
    if(e.event==='step_view' && e.detail) byStep[e.detail.step]=(byStep[e.detail.step]||0)+1;
    if(e.event==='step_dwell' && e.detail){ dwell[e.detail.step]=(dwell[e.detail.step]||0)+e.detail.ms; }
  });
  return {total:data.events.length, sessions:sessions.size, byEvent, byStep, dwell, first:data.events[0]?.ts, last:data.events[data.events.length-1]?.ts};
}
function showAnalytics(){
  const s = analyticsSummary();
  const fmtMin = ms => (ms/60000).toFixed(1)+' min';
  let txt = `USAGE LOGS\n\nSessions: ${s.sessions}   Events: ${s.total}\nRange: ${s.first?new Date(s.first).toLocaleString():'—'} → ${s.last?new Date(s.last).toLocaleString():'—'}\n\nStep views:\n`;
  for(let i=1;i<=10;i++) txt += `  Step ${i}: ${s.byStep[i]||0} views` + (s.dwell[i]?`, ${fmtMin(s.dwell[i])} total`:'') + `\n`;
  txt += `\nActions:\n`;
  Object.keys(s.byEvent).filter(k=>!['step_view','step_dwell','field_edit'].includes(k)).forEach(k=> txt += `  ${k}: ${s.byEvent[k]}\n`);
  txt += `  field edits: ${s.byEvent['field_edit']||0}\n`;
  txt += `\nDownload full event log as JSON?`;
  if(confirm(txt)) downloadAnalytics();
}
function downloadAnalytics(){
  const data = analyticsLoad();
  const blob = new Blob([JSON.stringify(data,null,2)], {type:'application/json'});
  const a = document.createElement('a');
  a.href = URL.createObjectURL(blob);
  a.download = 'wp-suite-usage-' + new Date().toISOString().slice(0,10) + '.json';
  a.click();
  URL.revokeObjectURL(a.href);
  track('analytics_exported');
}