(function(){
const TOKEN="Vm3fYtLZEIBd25ePLOv4vN2Qpyx4MarfdFmUyuJAHLM";
const API="http://178.104.61.74:8081";

// ── CSS ──────────────────────────────────────────────────────
const style=document.createElement('style');
style.textContent=`
#cmd-overlay{position:fixed;inset:0;background:rgba(0,0,0,.45);z-index:9999;display:none;align-items:flex-start;justify-content:center;padding-top:80px}
#cmd-overlay.open{display:flex}
#cmd-box{background:#fff;border-radius:10px;box-shadow:0 16px 48px rgba(0,0,0,.22);width:100%;max-width:560px;overflow:hidden}
#cmd-input{width:100%;padding:14px 16px;border:none;outline:none;font-size:15px;font-family:inherit;color:#1c1917;border-bottom:1px solid #e7e5e4}
#cmd-input::placeholder{color:#a8a29e}
#cmd-results{max-height:360px;overflow-y:auto}
.cmd-section{padding:4px 0}
.cmd-section-label{font-size:10px;font-weight:700;color:#a8a29e;text-transform:uppercase;letter-spacing:.5px;padding:8px 16px 4px}
.cmd-item{display:flex;align-items:center;gap:10px;padding:9px 16px;cursor:pointer;transition:background .08s}
.cmd-item:hover,.cmd-item.selected{background:#f5f5f4}
.cmd-item-icon{font-size:14px;flex-shrink:0;width:20px;text-align:center}
.cmd-item-main{flex:1;min-width:0}
.cmd-item-title{font-size:13px;color:#1c1917;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.cmd-item-sub{font-size:11px;color:#a8a29e;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;margin-top:1px}
.cmd-item-badge{font-size:10px;padding:2px 6px;border-radius:6px;background:#f5f5f4;color:#78716c;flex-shrink:0}
.cmd-empty{padding:24px 16px;text-align:center;font-size:13px;color:#a8a29e}
`;
document.head.appendChild(style);

// ── HTML ─────────────────────────────────────────────────────
const overlay=document.createElement('div');
overlay.id='cmd-overlay';
overlay.innerHTML=`<div id="cmd-box">
  <input id="cmd-input" placeholder="Szukaj lub wpisz notatkę… (Enter = utwórz)" autocomplete="off">
  <div id="cmd-results"></div>
</div>`;
document.body.appendChild(overlay);

const inp=document.getElementById('cmd-input');
const results=document.getElementById('cmd-results');

// ── STATE ────────────────────────────────────────────────────
let selectedIdx=-1;
let currentItems=[];
let searchTimer=null;

// ── QUICK ACTIONS ────────────────────────────────────────────
const QUICK=[
  {icon:'✦',title:'Nowa notatka',sub:'Utwórz i przejdź do Notes',action:()=>{
    close();
    const inp=document.getElementById('add-inp');
    if(inp){
      // jesteśmy już na Notes — focus bezpośrednio
      inp.focus();
      inp.scrollIntoView({block:'center'});
    } else {
      // jesteśmy na innej stronie — przejdź do Notes#new
      window.location.href='/notes#new';
    }
  }},
  {icon:'⊞',title:'Dodaj task do Matrix',sub:'Utwórz task w Unsorted',action:async()=>{
    const text=prompt('Nowy task:');
    if(!text||!text.trim())return;
    const TOKEN='Vm3fYtLZEIBd25ePLOv4vN2Qpyx4MarfdFmUyuJAHLM';
    const API='http://178.104.61.74:8081';
    const res=await fetch(API+'/tasks/add',{method:'POST',headers:{'Authorization':'Bearer '+TOKEN,'Content-Type':'application/json'},body:JSON.stringify({title:text.trim(),quadrant:null})}).then(r=>r.json());
    if(window.location.pathname==='/eisenhower')location.reload();
    else go('/eisenhower');
  }},
  {icon:'📅',title:'Dodaj zadanie do Today',sub:'Utwórz task i zaplanuj na dziś',action:async()=>{
    const text=prompt('Zadanie na dziś:');
    if(!text||!text.trim())return;
    const TOKEN='Vm3fYtLZEIBd25ePLOv4vN2Qpyx4MarfdFmUyuJAHLM';
    const API='http://178.104.61.74:8081';
    const nr=await fetch(API+'/notes/add',{method:'POST',headers:{'Authorization':'Bearer '+TOKEN,'Content-Type':'application/json'},body:JSON.stringify({text:text.trim()})}).then(r=>r.json());
    if(nr.ok&&nr.note){
      const noteId=nr.note.id;
      const tr=await fetch(API+'/notes/'+encodeURIComponent(noteId)+'/task',{method:'POST',headers:{'Authorization':'Bearer '+TOKEN,'Content-Type':'application/json'},body:JSON.stringify({})}).then(r=>r.json());
      if(tr.ok&&tr.note&&tr.note.task_ids&&tr.note.task_ids.length){
        const taskId=tr.note.task_ids[0];
        const now=new Date();now.setMinutes(0,0,0);now.setHours(now.getHours()+1);
        await fetch(API+'/tasks/update',{method:'POST',headers:{'Authorization':'Bearer '+TOKEN,'Content-Type':'application/json'},body:JSON.stringify({id:taskId,updates:{scheduled_at:now.toISOString(),quadrant:'DO'}})});
      }
    }
    if(window.location.pathname==='/today')location.reload();
    else go('/today');
  }},
  {icon:'📝',title:'Notes',sub:'/notes',action:()=>go('/notes')},
  {icon:'📆',title:'Calendar',sub:'/calendar',action:()=>go('/calendar')},
  {icon:'⊞',title:'Matrix',sub:'/eisenhower',action:()=>go('/eisenhower')},
  {icon:'📅',title:'Today',sub:'/today',action:()=>go('/today')},
  {icon:'🔍',title:'Search',sub:'/search-page',action:()=>go('/search-page')},
  {icon:'⚡',title:'Activity',sub:'/activity-page',action:()=>go('/activity-page')},
  {icon:'🗑',title:'Trash',sub:'/trash',action:()=>go('/trash')},
];

// ── OPEN / CLOSE ─────────────────────────────────────────────
function open(){
  overlay.classList.add('open');
  inp.value='';
  selectedIdx=-1;
  renderQuick();
  setTimeout(()=>inp.focus(),50);
}

function close(){
  overlay.classList.remove('open');
  inp.value='';
  clearTimeout(searchTimer);
}

function go(url){ close(); window.location.href=url; }

// ── RENDER QUICK ─────────────────────────────────────────────
function renderQuick(){
  currentItems=QUICK.map(q=>({...q,type:'quick'}));
  results.innerHTML=`<div class="cmd-section">
    <div class="cmd-section-label">Szybkie akcje</div>
    ${QUICK.map((q,i)=>`<div class="cmd-item" data-idx="${i}">
      <span class="cmd-item-icon">${q.icon}</span>
      <div class="cmd-item-main">
        <div class="cmd-item-title">${q.title}</div>
        <div class="cmd-item-sub">${q.sub}</div>
      </div>
    </div>`).join('')}
  </div>`;
  bindClicks();
}

// ── RENDER SEARCH RESULTS ─────────────────────────────────────
function renderSearch(notes,tasks,q){
  currentItems=[];
  let html='';

  if(notes.length){
    html+=`<div class="cmd-section"><div class="cmd-section-label">Notatki ${notes.length}</div>`;
    notes.slice(0,5).forEach(n=>{
      const idx=currentItems.length;
      currentItems.push({type:'note',id:n.id,noteId:n.id});
      html+=`<div class="cmd-item" data-idx="${idx}">
        <span class="cmd-item-icon">📝</span>
        <div class="cmd-item-main">
          <div class="cmd-item-title">${esc(n.clean_text)}</div>
          <div class="cmd-item-sub">${n.type||''}</div>
        </div>
        <span class="cmd-item-badge">${n.task_state||''}</span>
      </div>`;
    });
    html+='</div>';
  }

  if(tasks.length){
    html+=`<div class="cmd-section"><div class="cmd-section-label">Zadania ${tasks.length}</div>`;
    tasks.slice(0,5).forEach(t=>{
      const idx=currentItems.length;
      currentItems.push({type:'task',id:t.id,noteId:t.source_note||null});
      html+=`<div class="cmd-item" data-idx="${idx}">
        <span class="cmd-item-icon">☑</span>
        <div class="cmd-item-main">
          <div class="cmd-item-title">${esc(t.title)}</div>
          <div class="cmd-item-sub">${esc(t.note_preview||'')}</div>
        </div>
        <span class="cmd-item-badge">${t.quadrant||''}</span>
      </div>`;
    });
    html+='</div>';
  }

  if(!notes.length&&!tasks.length){
    html=`<div class="cmd-empty">Brak wyników — Enter aby utworzyć notatkę „${esc(q)}"</div>`;
  }

  results.innerHTML=html;
  selectedIdx=-1;
  bindClicks();
}

// ── EXECUTE ITEM ──────────────────────────────────────────────
function executeItem(item){
  if(!item)return;
  if(item.type==='quick'){ close(); item.action(); return; }
  if(item.type==='note'||item.type==='task'){
    const target=item.noteId||item.id;
    close();
    window.location.href='/notes#'+encodeURIComponent(target);
    return;
  }
}

// ── CREATE NOTE ───────────────────────────────────────────────
async function createNote(text){
  if(!text.trim()){
    close();
    go('/notes');
    return;
  }
  try{
    const r=await fetch(API+'/notes/add',{
      method:'POST',
      headers:{'Authorization':'Bearer '+TOKEN,'Content-Type':'application/json'},
      body:JSON.stringify({text:text.trim()})
    });
    const d=await r.json();
    close();
    if(d.ok&&d.note){
      window.location.href='/notes#'+encodeURIComponent(d.note.id);
    } else {
      go('/notes');
    }
  }catch{
    close();go('/notes');
  }
}

// ── SEARCH ────────────────────────────────────────────────────
function doSearch(q){
  clearTimeout(searchTimer);
  searchTimer=setTimeout(async()=>{
    try{
      const r=await fetch(API+'/search?q='+encodeURIComponent(q),{
        headers:{'Authorization':'Bearer '+TOKEN}
      });
      const d=await r.json();
      renderSearch(d.notes||[],d.tasks||[],q);
    }catch{ results.innerHTML='<div class="cmd-empty">Błąd wyszukiwania</div>'; }
  },200);
}

// ── SELECTION ─────────────────────────────────────────────────
function moveSelection(dir){
  const items=results.querySelectorAll('.cmd-item');
  if(!items.length)return;
  items.forEach(el=>el.classList.remove('selected'));
  selectedIdx=Math.max(0,Math.min(items.length-1,selectedIdx+dir));
  items[selectedIdx].classList.add('selected');
  items[selectedIdx].scrollIntoView({block:'nearest'});
}

function esc(s){return(s||'').replace(/&/g,'&amp;').replace(/</g,'&lt;').replace(/>/g,'&gt;')}

// ── BIND CLICKS ───────────────────────────────────────────────
function bindClicks(){
  results.querySelectorAll('.cmd-item').forEach(el=>{
    el.addEventListener('click',()=>{
      const idx=parseInt(el.dataset.idx);
      executeItem(currentItems[idx]);
    });
  });
}

// ── INPUT EVENTS ──────────────────────────────────────────────
inp.addEventListener('input',e=>{
  const q=e.target.value.trim();
  if(!q){ renderQuick(); return; }
  doSearch(q);
});

inp.addEventListener('keydown',e=>{
  if(e.key==='ArrowDown'){e.preventDefault();moveSelection(1);}
  else if(e.key==='ArrowUp'){e.preventDefault();moveSelection(-1);}
  else if(e.key==='Enter'){
    e.preventDefault();
    if(selectedIdx>=0&&currentItems[selectedIdx]){
      executeItem(currentItems[selectedIdx]);
    } else {
      const q=inp.value.trim();
      if(q) createNote(q);
      else { close(); go('/notes'); }
    }
  }
  else if(e.key==='Escape'){ close(); }
});

// ── OVERLAY CLICK ─────────────────────────────────────────────
overlay.addEventListener('click',e=>{
  if(e.target===overlay)close();
});

// ── GLOBAL KEYS ───────────────────────────────────────────────
let lastShift=0;
document.addEventListener('keydown',e=>{
  const tag=document.activeElement.tagName;
  const inInput=tag==='INPUT'||tag==='TEXTAREA';

  // podwójny Shift
  if(e.key==='Shift'){
    const now=Date.now();
    if(now-lastShift<400){
      if(overlay.classList.contains('open'))return;
      e.preventDefault();
      open();
      lastShift=0;
    } else {
      lastShift=now;
    }
    return;
  }

  if((e.key==='k'&&(e.ctrlKey||e.metaKey))||(e.key==='/'&&!inInput)){
    if(overlay.classList.contains('open'))return;
    e.preventDefault();
    open();
  }
}, true);

})();

// Ctrl+Tab / Ctrl+Shift+Tab — nawigacja między stronami
(function() {
  const PAGES = ['/notes', '/eisenhower', '/today', '/calendar', '/search-page', '/activity-page', '/trash'];
  document.addEventListener('keydown', function(e) {
    if(!e.ctrlKey || e.key !== 'Tab') return;
    e.preventDefault();
    const cur = window.location.pathname;
    const idx = PAGES.indexOf(cur);
    if(idx === -1) return;
    const next = e.shiftKey
      ? PAGES[(idx - 1 + PAGES.length) % PAGES.length]
      : PAGES[(idx + 1) % PAGES.length];
    window.location.href = next;
  });
})();

// Alt+1-6 — nawigacja między stronami
(function() {
  const PAGES = ['/notes', '/eisenhower', '/today', '/calendar', '/search-page', '/activity-page', '/trash'];
  document.addEventListener('keydown', function(e) {
    if(!e.altKey) return;
    const n = parseInt(e.key);
    if(n >= 1 && n <= 7) {
      e.preventDefault();
      window.location.href = PAGES[n-1];
    }
  });
})();