/* Admin console for the Work Package Suite.
   Browser-side diagnostics + tests that call the same /api on this host.

   PASSPHRASE GATE (lightweight / obfuscation only):
   The gate compares a SHA-256 hash so the passphrase isn't in the source, but a
   determined user can still bypass client-side JS. For real protection, restrict
   this host/route at the network or reverse-proxy layer.

   Default passphrase: "prime-admin"
   To change it: compute a new hash and replace ADMIN_PASSPHRASE_SHA256 below —
     python3 -c "import hashlib,sys;print(hashlib.sha256(sys.argv[1].encode()).hexdigest())" "your-new-passphrase"
   or in a browser console:
     crypto.subtle.digest('SHA-256', new TextEncoder().encode('your-new-passphrase'))
       .then(b=>console.log([...new Uint8Array(b)].map(x=>x.toString(16).padStart(2,'0')).join('')));
*/
const ADMIN_PASSPHRASE_SHA256 = 'ae1fb92c43fccbad26f05434a194f574ec98a2197e0ff4080f84e6e26a8dd00f';

// ── gate ──────────────────────────────────────────────────────────────────────
async function sha256hex(s){
  const buf = await crypto.subtle.digest('SHA-256', new TextEncoder().encode(s));
  return [...new Uint8Array(buf)].map(b=>b.toString(16).padStart(2,'0')).join('');
}
async function tryUnlock(){
  const v = document.getElementById('gate-input').value || '';
  const msg = document.getElementById('gate-msg');
  if(!v){ msg.textContent='Enter the passphrase.'; return; }
  let h;
  try { h = await sha256hex(v); }
  catch(e){ msg.textContent='This page must be served over HTTPS (or localhost) to unlock.'; return; }
  if(h === ADMIN_PASSPHRASE_SHA256){ sessionStorage.setItem('wp_admin_ok','1'); reveal(); }
  else { msg.textContent='Incorrect passphrase.'; }
}
function reveal(){
  document.getElementById('admin-gate').style.display='none';
  document.getElementById('admin-main').style.display='';
  checkHealth();
}
function lock(){ sessionStorage.removeItem('wp_admin_ok'); location.reload(); }

// ── api helper ──────────────────────────────────────────────────────────────
async function api(method, path, body){
  const opt = { method, headers:{ 'Accept':'application/json' } };
  if(body !== undefined){ opt.headers['Content-Type']='application/json'; opt.body=JSON.stringify(body); }
  try {
    const r = await fetch(path, opt);
    const t = await r.text();
    let json; try { json = t ? JSON.parse(t) : null; } catch(_){ json = t; }
    return { status:r.status, json };
  } catch(e){ return { status:0, json:String(e) }; }
}

// ── connectivity ──────────────────────────────────────────────────────────────
async function checkHealth(){
  const b = document.getElementById('health-banner');
  b.className='banner'; b.textContent='Checking…';
  const { status, json } = await api('GET','/api/health');
  if(status===200 && json && json.ok){
    b.className='banner ok'; b.textContent='✅ API reachable — /api/health returned ok.';
  } else if(status===404){
    b.className='banner bad'; b.textContent='❌ /api/ returns 404 — the reverse proxy is not routing /api/ to the API. The site loads but the API is unreachable from the browser.';
  } else if(status===0){
    b.className='banner bad'; b.textContent='❌ Could not reach the server: '+json;
  } else {
    b.className='banner bad'; b.textContent='❌ Unexpected response: HTTP '+status;
  }
}

// ── db snapshot ───────────────────────────────────────────────────────────────
async function snapshot(){
  const out = document.getElementById('snapshot-out'); out.textContent='Loading…';
  const [p,s,w,c] = await Promise.all([
    api('GET','/api/projects'), api('GET','/api/sops'),
    api('GET','/api/wps'), api('GET','/api/comments')]);
  if(p.status!==200){
    out.innerHTML = `<div class="banner bad">API not reachable (HTTP ${p.status}). Fix /api/ routing first.</div>`; return;
  }
  const n = r => Array.isArray(r.json) ? r.json.length : ('err '+r.status);
  out.innerHTML = `<table class="kv">
    <tr><th>Projects</th><td>${n(p)}</td></tr>
    <tr><th>SOPs</th><td>${n(s)}</td></tr>
    <tr><th>Work Packages</th><td>${n(w)}</td></tr>
    <tr><th>Comments</th><td>${n(c)}</td></tr></table>`;
}

// ── smoke test ────────────────────────────────────────────────────────────────
function smLog(html){ const o=document.getElementById('smoke-out'); o.innerHTML += html + '\n'; o.scrollTop=o.scrollHeight; }
async function runSmokeTest(){
  const o=document.getElementById('smoke-out'); o.innerHTML=''; let pass=0, fail=0, pid=null;
  const chk=(name,cond,detail)=>{ if(cond){ pass++; smLog('<span class="p">PASS</span>  '+name); }
    else { fail++; smLog('<span class="f">FAIL</span>  '+name+(detail?'  ('+detail+')':'')); } return cond; };
  try {
    let r = await api('GET','/api/health');
    if(!chk('health endpoint ok', r.status===200 && r.json && r.json.ok, 'status '+r.status)){
      smLog('\nAborting — API unreachable (fix /api/ routing).'); return finishSmoke(pass,fail);
    }
    r = await api('POST','/api/projects',{name:'ZZ Smoke Test Project',number:'SMOKE-001',client:'Internal QA',created_by:'admin-console'});
    pid = r.json && r.json.id; chk('create project', r.status===200 && !!pid, 'status '+r.status);
    r = await api('GET','/api/projects/'+pid); chk('fetch project by id', r.status===200 && r.json.number==='SMOKE-001');
    r = await api('GET','/api/projects'); chk('project in list', r.status===200 && r.json.some(p=>p.id===pid));
    r = await api('POST','/api/sops',{project_id:pid,name:'ZZ Smoke SOP',number:'SMOKE-001',complete:true,data:{governance:{disciplines:['Mechanical','Electrical','Tech']}}});
    const sid = r.json && r.json.id; chk('create SOP linked to project', r.status===200 && !!sid && r.json.project_id===pid);
    r = await api('GET','/api/sops/latest?project_id='+pid); chk('latest SOP resolves', r.status===200 && r.json.id===sid);
    r = await api('POST','/api/wps',{project_id:pid,sop_id:sid,number:'WP01-SMOKE',subject:'Smoke test package',type:'Conduit Install',status:'Scheduled',data:{disciplines:['Electrical'],hours:'40',constraints:[{name:'Materials',status:'open',comment:'awaiting delivery'},{name:'Safety',status:'cleared',comment:''}]}});
    const wid = r.json && r.json.id; chk('create work package', r.status===200 && !!wid);
    r = await api('POST','/api/wps/'+wid+'/issue'); chk('issue blocked while a constraint is open (409)', r.status===409, 'status '+r.status);
    await api('POST','/api/wps',{id:wid,project_id:pid,sop_id:sid,number:'WP01-SMOKE',subject:'Smoke test package',type:'Conduit Install',status:'Scheduled',data:{disciplines:['Electrical'],hours:'40',constraints:[{name:'Materials',status:'cleared',comment:''},{name:'Safety',status:'cleared',comment:''}]}});
    r = await api('POST','/api/wps/'+wid+'/issue'); chk('issue succeeds once cleared', r.status===200 && r.json.status==='Issued', 'status '+r.status);
    chk('issued_at timestamp set', !!(r.json && r.json.issued_at));
    r = await api('POST','/api/wps/'+wid+'/status',{status:'In Progress'}); chk('status transition', r.status===200 && r.json.status==='In Progress');
    r = await api('GET','/api/wps/metrics?project_id='+pid); chk('metrics aggregate', r.status===200 && r.json && r.json.total>=1, JSON.stringify(r.json));
    r = await api('POST','/api/feedback',{type:'wp_review_comment',name:'admin-console',wp_id:wid,text:'SMOKE TEST comment — safe to delete'}); chk('post comment', r.status===200 && !!(r.json && r.json.id));
    r = await api('GET','/api/wps?project_id='+pid); chk('list WPs by project', r.status===200 && r.json.some(w=>w.id===wid));
  } catch(e){ chk('unexpected error', false, String(e)); }
  finally {
    if(pid){ const r=await api('DELETE','/api/projects/'+pid); chk('cleanup — delete project (cascades SOP+WPs)', r.status===200, 'status '+r.status); }
    finishSmoke(pass,fail);
  }
}
function finishSmoke(pass,fail){
  const total=pass+fail;
  smLog('\n'+pass+'/'+total+' checks passed.');
  smLog(fail ? '<span class="f">RESULT: FAIL ('+fail+')</span>' : '<span class="p">RESULT: ALL PASS — API, Python logic, and SQL are working.</span>');
}

// ── demo data ─────────────────────────────────────────────────────────────────
function demoLog(s){ const o=document.getElementById('demo-out'); o.innerHTML += s + '\n'; o.scrollTop=o.scrollHeight; }
function stdConstraints(open){ return ['Safety & Permitting','Quality Control / Inspection','IFC Drawings & Specs','Schedule','Materials (on site, bagged & tagged)']
  .map(n=>({name:n, status:(open&&open.includes(n))?'open':'cleared', comment:''})); }
async function seedDemo(){
  const o=document.getElementById('demo-out'); o.innerHTML='';
  let r = await api('GET','/api/health');
  if(!(r.status===200 && r.json && r.json.ok)){ demoLog('❌ API unreachable — fix /api/ routing first.'); return; }
  r = await api('POST','/api/projects',{name:'DEMO — Micron INC (test data)',number:'DEMO-001',client:'Micron Technology, Inc.',division:'Semiconductor',site:'Boise, ID — Fab',created_by:'admin-console'});
  if(r.status!==200){ demoLog('❌ create project failed (HTTP '+r.status+')'); return; }
  const pid=r.json.id; demoLog('Project created: '+r.json.name);
  r = await api('POST','/api/sops',{project_id:pid,name:'DEMO SOP',number:'DEMO-001',complete:true,data:{governance:{woFormat:'WP##-[Sector]-[TYPE]',disciplines:['Mechanical','Electrical','Tech'],discMode:'choice',instanceSuffix:'letter',woSize:'Standard — 3–5 days (≈40–80 hrs)',sizeHoursMax:'80'}}});
  const sid=r.json && r.json.id; demoLog('SOP created (complete).');
  const mk=async(num,subj,typ,status,data,parent)=>{ const body={project_id:pid,sop_id:sid,number:num,subject:subj,type:typ,status,created_by:'admin-console',data}; if(parent)body.parent_id=parent; const rr=await api('POST','/api/wps',body); demoLog('  WP '+num+'  ['+status+']'); return rr.json; };
  await mk('WP01-1P-CONDUIT','1P horn/strobe conduit','Conduit Install','Issued',{disciplines:['Electrical'],hours:'40',constraints:stdConstraints(),due:'2026-06-30'});
  await mk('WP02-1P-WIRE','1P wire pull','Wire Pull','Scheduled',{disciplines:['Electrical'],hours:'60',constraints:stdConstraints(['Materials (on site, bagged & tagged)']),due:'2026-07-04'});
  const masterId='wp_demo_master_chiller';
  const kids=[['WP03-CHILLER_Mech','Mechanical','A','Mechanical Install','In Progress'],['WP03-CHILLER_Elec','Electrical','B','Wire Pull','Scheduled'],['WP03-CHILLER_Tech','Tech','C','Terminations','Draft']];
  const kidIds=[];
  for(const [num,disc,label,typ,status] of kids){ const id='wp_demo_'+label.toLowerCase(); kidIds.push(id);
    await api('POST','/api/wps',{id,project_id:pid,sop_id:sid,parent_id:masterId,number:num,subject:'Chiller skid — '+disc,type:typ,status,created_by:'admin-console',data:{disciplines:[disc],instanceOf:masterId,instanceLabel:label,parentNumber:'WP03-CHILLER',hours:'50',constraints:stdConstraints(),due:'2026-07-10'}});
    demoLog('  WP '+num+'  ['+status+']  (instance '+label+')'); }
  await api('POST','/api/wps',{id:masterId,project_id:pid,sop_id:sid,number:'WP03-CHILLER',subject:'Chiller skid (multi-discipline master)',type:'Mechanical Install',status:'Scheduled',created_by:'admin-console',data:{disciplines:['Mechanical','Electrical','Tech'],split:true,children:kidIds,hours:'150',constraints:stdConstraints(),due:'2026-07-10'}});
  demoLog('  WP WP03-CHILLER  [master, split into A/B/C]');
  await mk('WP04-2P-TERM','2P terminations','Terminations','In Progress',{disciplines:['Tech'],hours:'30',actualHrs:'20',constraints:stdConstraints(),due:'2026-06-10'});
  await mk('WP05-3P-PANEL','3P panel install','Panel Install','Draft',{disciplines:['Electrical'],hours:'120',constraints:stdConstraints(['Schedule']),due:'2026-07-20'});
  r = await api('GET','/api/wps/metrics?project_id='+pid);
  demoLog('\nMetrics (masters excluded): '+JSON.stringify(r.json));
  demoLog('\n✅ Done — "DEMO — Micron INC (test data)" now appears in the home picker.');
  snapshot();
}
async function cleanDemo(){
  if(!confirm('Delete ALL projects whose number starts with DEMO- or SMOKE- (and their SOPs/WPs via cascade)?')) return;
  const o=document.getElementById('demo-out'); o.innerHTML='';
  const r = await api('GET','/api/projects');
  if(r.status!==200){ demoLog('❌ API unreachable (HTTP '+r.status+').'); return; }
  const targets=(r.json||[]).filter(p=>/^(DEMO-|SMOKE-)/.test(String(p.number||'')));
  if(!targets.length){ demoLog('Nothing to remove.'); return; }
  for(const p of targets){ await api('DELETE','/api/projects/'+p.id); demoLog('Deleted: '+p.name+'  ('+p.number+')'); }
  demoLog('\n✅ Removed '+targets.length+' project(s).');
  snapshot();
}

// reveal immediately if already unlocked this session
if(sessionStorage.getItem('wp_admin_ok')==='1'){ reveal(); }
else { const i=document.getElementById('gate-input'); if(i) i.focus(); }