/* domucgiare - Tim kiem nhanh toan trang v2 (11/10/2026) - uu tien ten bai/san pham, sau do mo ta/noi dung; Enter = xem day du
   - Go vao o "Tim kiem": hien ngay ket qua BAI VIET / HUONG DAN, DICH VU & SAN PHAM, DANH MUC (khong dau van tim duoc)
   - Moi ket qua co nut "Chep link" de gui nhanh cho khach qua Zalo
   - Du lieu: /img/files/tv-domucgiare-timkiem-index-v1.txt (+ tu bo sung bai moi tu sitemap.xml)
   - Muon cap nhat danh sach tieu de: tao lai file index (ten moi) va doi INDEX ben duoi. */
(function(){
  var INDEX="/img/files/tv-domucgiare-timkiem-index-v1.txt";
  var inputs=document.querySelectorAll('input[name="data[Filter][product_name]"]');if(!inputs.length)return;
  var css=".tvs-box{position:absolute;z-index:100000;background:#fff;border:1px solid #d5dde8;border-radius:12px;box-shadow:0 18px 44px rgba(16,34,66,.22);font-family:Arial,Helvetica,sans-serif;max-height:72vh;overflow:auto;text-align:left;display:none}"
  +".tvs-box.on{display:block}"
  +".tvs-g{padding:8px 0 4px}.tvs-g + .tvs-g{border-top:1px solid #eef1f5}"
  +".tvs-gh{font-size:11.5px;font-weight:700;letter-spacing:.7px;text-transform:uppercase;color:#5c6b80;padding:4px 14px 6px;display:flex;justify-content:space-between}"
  +".tvs-it{display:flex;align-items:center;gap:10px;padding:7px 14px;cursor:pointer;text-decoration:none!important;color:#14284b!important}"
  +".tvs-it:hover,.tvs-it.act{background:#f1f4f9}"
  +".tvs-th{flex:0 0 46px;width:46px;height:34px;border-radius:6px;background:#eef2f8 center/cover no-repeat}"
  +".tvs-tx{flex:1;min-width:0;line-height:1.35}"
  +".tvs-tx b{display:block;font-size:13.5px;font-weight:700;color:#14284b;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}"
  +".tvs-tx small{display:block;font-size:12px;color:#5c6b80;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}"
  +".tvs-tx mark{background:#fff3b0;color:inherit;padding:0}"
  +".tvs-cp{flex:0 0 auto;border:1px solid #d5dde8;background:#fff;color:#14284b;border-radius:7px;font-size:12px;font-weight:700;padding:5px 9px;cursor:pointer;white-space:nowrap}"
  +".tvs-cp:hover{border-color:#0068ff;color:#0068ff}.tvs-cp.ok{background:#e7f5ec;border-color:#9fd5b2;color:#1b7f3b}"
  +".tvs-more{display:block;width:100%;border:0;background:none;color:#1f4178;font-size:12.5px;font-weight:700;padding:6px 14px 8px;text-align:left;cursor:pointer}"
  +".tvs-ft{border-top:1px solid #eef1f5;padding:10px 14px;display:flex;flex-wrap:wrap;gap:8px;justify-content:space-between;align-items:center;font-size:12.5px;color:#5c6b80;background:#fafbfc;border-radius:0 0 12px 12px}"
  +".tvs-ft button{border:0;background:#d62828;color:#fff;font-weight:700;border-radius:8px;padding:7px 12px;cursor:pointer;font-size:12.5px}"
  +".tvs-empty{padding:16px 14px;font-size:13.5px;color:#3b4a5c}"
  +"@media (max-width:767px){.tvs-cp{display:none}.tvs-th{flex-basis:40px;width:40px;height:30px}}";
  var st=document.createElement("style");st.id="tvs-css";st.textContent=css;document.head.appendChild(st);
  function mk(t,c,x){var e=document.createElement(t);if(c)e.className=c;if(x)e.textContent=x;return e;}
  function norm(s){return (s||"").toLowerCase().normalize("NFD").replace(/[\u0300-\u036f]/g,"").replace(/đ/g,"d").replace(/[^a-z0-9]+/g," ").trim();}
  function clean(t){return (t||"").replace(/\s*[|–-]\s*(Thần Vũ|Máy In Mực In Thần Vũ|0965\.305\.158).*$/i,"").trim();}
  var DATA=null,loading=null;
  function kind(it){var u=it.u;if(it.p)return 1;if(/^(Tin tức|Tư vấn|Kiến thức)/i.test(it.c||"")||/^\/(tin-tuc|tu-van|kien-thuc)/.test(u))return 0;if(/\.html$/.test(u))return 0;return 2;}
  function prep(arr){arr.forEach(function(it){it.T=clean(it.t||it.h)||it.h||it.u;it.n=norm(it.T+" "+(it.h||""));it.m=norm((it.d||"")+" "+it.u.replace(/[\/_.-]+/g," ")+" "+(it.c||""));it.k=kind(it);});return arr;}
  function load(){if(DATA)return Promise.resolve(DATA);if(loading)return loading;
    loading=fetch(INDEX).then(function(r){return r.json();}).then(function(arr){DATA=prep(arr);
      return fetch("/sitemap.xml").then(function(r){return r.text();}).then(function(x){var have={};DATA.forEach(function(it){have[it.u]=1;});var m=x.match(/https:\/\/mayinlongbien\.vn\/[^\s"<]+/g)||[];var add=[];m.forEach(function(full){var u=full.replace("https://mayinlongbien.vn","").replace(/&amp;/g,"&");if(u&&u!=="/"&&!have[u]){have[u]=1;var s=u.split("/").pop().replace(/\.html$/,"").replace(/-/g," ");add.push({u:u,t:s.charAt(0).toUpperCase()+s.slice(1),h:"",p:0,c:"",i:"",d:""});}});DATA=DATA.concat(prep(add));return DATA;}).catch(function(){return DATA;});
    }).catch(function(){DATA=[];return DATA;});return loading;}
  function search(q){var qn=norm(q);if(qn.length < 2)return null;var toks=qn.split(" ").filter(function(t){return t;});var res=[];
    function has(hay,t){var H=" "+hay+" ";if(t.length < 3)return H.indexOf(" "+t+" ") > -1?2:0;if(H.indexOf(" "+t+" ") > -1)return 2;return H.indexOf(" "+t) > -1?1:0;}
    function pass(relax){DATA.forEach(function(it){var s=0,inT=0,miss=0;for(var i=0;i!==toks.length;i++){var t=toks[i];var a=has(it.n,t);if(a){s+=3+a;inT++;}else if(has(it.m,t)){s+=1;}else{miss++;if(!relax||miss > Math.floor(toks.length/2))return;}}
      if(inT===toks.length)s+=8;var Hn=" "+it.n+" ";if(toks.length > 1&&Hn.indexOf(" "+qn) > -1)s+=10;if(Hn.indexOf(" "+qn+" ")===0||it.n.indexOf(qn)===0)s+=4;
      if(it.k===0&&/cach|huong dan|loi|nguyen nhan|meo|kinh nghiem|khi nao|tai sao|vi sao|bang ma/.test(qn))s+=3;res.push({it:it,s:s});});}pass(false);if(!res.length&&toks.length > 1)pass(true);
    res.sort(function(a,b){return b.s-a.s||a.it.T.length-b.it.T.length;});return res;}
  function hl(text,q){var b=mk("b");var toks=norm(q).split(" ").filter(function(x){return x.length > 1;});var tn=norm(text).length===text.length?text:null;
    if(!toks.length){b.textContent=text;return b;}var low=text.toLowerCase().normalize("NFD").replace(/[\u0300-\u036f]/g,"").replace(/đ/g,"d");if(low.length!==text.length){b.textContent=text;return b;}
    var marks=[];toks.forEach(function(t){var p=low.indexOf(t);while(p > -1){marks.push([p,p+t.length]);p=low.indexOf(t,p+t.length);}});marks.sort(function(a,c){return a[0]-c[0];});var pos=0;
    marks.forEach(function(m){if(m[0] < pos)return;b.appendChild(document.createTextNode(text.slice(pos,m[0])));b.appendChild(mk("mark",null,text.slice(m[0],m[1])));pos=m[1];});b.appendChild(document.createTextNode(text.slice(pos)));return b;}
  function copy(url,btn){var full="https://mayinlongbien.vn"+url;var done=function(){btn.textContent="Đã chép ✓";btn.classList.add("ok");setTimeout(function(){btn.textContent="Chép link";btn.classList.remove("ok");},1600);};
    if(navigator.clipboard&&navigator.clipboard.writeText){navigator.clipboard.writeText(full).then(done,function(){prompt("Link:",full);});}else{prompt("Link:",full);}}
  [].forEach.call(inputs,function(inp){
    var form=inp.form;var box=mk("div","tvs-box");document.body.appendChild(box);var act=-1,items=[],timer=null,limit={0:6,1:5,2:4};
    inp.setAttribute("autocomplete","off");inp.setAttribute("placeholder","Tìm bài hướng dẫn, dịch vụ, máy, linh kiện…");
    function pos(){var r=inp.getBoundingClientRect();var w=Math.min(Math.max(r.width,560),window.innerWidth-16);var left=Math.min(r.left+window.scrollX,window.scrollX+window.innerWidth-w-8);box.style.left=Math.max(8,left)+"px";box.style.top=(r.bottom+window.scrollY+6)+"px";box.style.width=w+"px";}
    function hide(){box.classList.remove("on");act=-1;}
    function render(q){var res=search(q);box.textContent="";items=[];act=-1;if(!res){hide();return;}pos();
      if(!res.length){box.appendChild(mk("div","tvs-empty","Không tìm thấy kết quả phù hợp cho “"+q+"”. Thử từ khóa ngắn hơn, ví dụ: “kẹt giấy”, “Epson L805”, “đổ mực”."));}
      var G=[[0,"Bài viết & hướng dẫn"],[1,"Dịch vụ & sản phẩm"],[2,"Danh mục & trang"]];
      G.forEach(function(g){var list=res.filter(function(r){return r.it.k===g[0];});if(!list.length)return;var wrap=mk("div","tvs-g");var gh=mk("div","tvs-gh");gh.appendChild(mk("span",null,g[1]));gh.appendChild(mk("span",null,list.length+" kết quả"));wrap.appendChild(gh);
        var lim=limit[g[0]];list.slice(0,lim).forEach(function(r){wrap.appendChild(row(r.it,q));});
        if(list.length > lim){var mb=mk("button","tvs-more","Xem thêm "+(list.length-lim)+" kết quả ▾");mb.type="button";mb.addEventListener("mousedown",function(e){e.preventDefault();limit[g[0]]+=10;render(q);});wrap.appendChild(mb);}
        box.appendChild(wrap);});
      var ft=mk("div","tvs-ft");ft.appendChild(mk("span",null,"Mẹo: gõ không dấu cũng tìm được. ↑↓ để chọn, Enter để mở."));var all=mk("button",null,"Tìm sản phẩm “"+q+"” →");all.type="button";all.addEventListener("mousedown",function(e){e.preventDefault();hide();form&&form.submit();});ft.appendChild(all);box.appendChild(ft);
      box.classList.add("on");}
    function row(it,q){var a=mk("a","tvs-it");a.href=it.u;var th=mk("span","tvs-th");if(it.i)th.style.backgroundImage="url('"+it.i.replace(/'/g,"%27")+"')";a.appendChild(th);var tx=mk("span","tvs-tx");tx.appendChild(hl(it.T,q));tx.appendChild(mk("small",null,(it.c||it.u)));a.appendChild(tx);
      var cp=mk("button","tvs-cp","Chép link");cp.type="button";cp.title="Chép đường link để gửi khách";cp.addEventListener("mousedown",function(e){e.preventDefault();e.stopPropagation();copy(it.u,cp);});cp.addEventListener("click",function(e){e.preventDefault();e.stopPropagation();});a.appendChild(cp);items.push(a);return a;}
    inp.addEventListener("focus",function(){load().then(function(){if(inp.value.trim())render(inp.value.trim());});});
    inp.addEventListener("input",function(){clearTimeout(timer);var q=inp.value.trim();timer=setTimeout(function(){load().then(function(){render(q);});},160);});
    inp.addEventListener("keydown",function(e){if(!box.classList.contains("on"))return;if(e.key==="ArrowDown"||e.key==="ArrowUp"){e.preventDefault();if(items[act])items[act].classList.remove("act");act=e.key==="ArrowDown"?Math.min(items.length-1,act+1):Math.max(0,act-1);if(items[act]){items[act].classList.add("act");items[act].scrollIntoView({block:"nearest"});}}
      else if(e.key==="Enter"){e.preventDefault();if(items[act]){location.href=items[act].href;}else{limit={0:30,1:30,2:20};render(inp.value.trim());}}else if(e.key==="Escape"){hide();}});
    inp.addEventListener("blur",function(){setTimeout(hide,180);});if(form)form.addEventListener("submit",function(e){var q=inp.value.trim();if(q.length > 1){e.preventDefault();load().then(function(){limit={0:30,1:30,2:20};render(q);inp.focus();});}});
    window.addEventListener("resize",function(){if(box.classList.contains("on"))pos();});
  });
})();