(function(){
  function ready(fn){ if(document.readyState!=='loading'){fn();} else {document.addEventListener('DOMContentLoaded',fn);} }
  function paint(cb){
    var chip=cb.closest('.tt-chip'); if(!chip) return;
    var on=cb.checked;
    if(chip.classList.contains('tt-flag')){
      chip.style.setProperty('box-shadow', on?'0 0 0 2px #638C1C':'none', 'important');
      chip.style.setProperty('border-color', on?'#638C1C':'#d9e0cc', 'important');
    } else {
      chip.style.setProperty('background-color', on?'#638C1C':'#fff', 'important');
      chip.style.setProperty('border-color', on?'#638C1C':'#d9e0cc', 'important');
      chip.style.setProperty('color', on?'#fff':'#4a4f42', 'important');
    }
  }
  function rangeDows(dDesde,dHasta){
    if(!dDesde||!dDesde.value) return null;
    var from=new Date(dDesde.value+'T00:00:00');
    var to=(dHasta&&dHasta.value)?new Date(dHasta.value+'T00:00:00'):new Date(from.getTime());
    if(from.getTime()>to.getTime()){ var t=from; from=to; to=t; }
    var days=Math.round((to.getTime()-from.getTime())/86400000)+1;
    if(days>400) days=400;
    var set={};
    for(var i=0;days>i;i++){ var dd=new Date(from.getTime()+i*86400000); set[dd.getDay()]=1; }
    return set;
  }
  ready(function(){
    document.querySelectorAll('.tt-wrap').forEach(function(w){
      var grid=w.querySelector('.tt-grid');
      var cards=Array.prototype.slice.call(w.querySelectorAll('.tt-card'));
      if(!cards.length) return;
      var tipoCbs=w.querySelectorAll('.tt-f-tipo');
      var subCbs=w.querySelectorAll('.tt-f-sub');
      var idiCbs=w.querySelectorAll('.tt-f-idioma');
      var allCbs=w.querySelectorAll('.tt-f-tipo,.tt-f-sub,.tt-f-idioma');
      var dDesde=w.querySelector('.tt-f-desde');
      var dHasta=w.querySelector('.tt-f-hasta');
      var sortSel=w.querySelector('.tt-f-sort');
      var empty=w.querySelector('.tt-f-empty');
      var verMas=w.querySelector('.tt-vermas');
      var STEP=parseInt(w.getAttribute('data-mostrar'),10); if(!(STEP>0)) STEP=999999;
      var shownLimit=STEP;
      function checkedVals(cbs){ var a=[]; cbs.forEach(function(c){ if(c.checked) a.push(c.getAttribute('data-v')); }); return a; }
      function matches(c){
        var tv=checkedVals(tipoCbs), sv=checkedVals(subCbs), iv=checkedVals(idiCbs), dows=rangeDows(dDesde,dHasta);
        var ct=(c.getAttribute('data-tipo')||'').split(' ');
        var cs=(c.getAttribute('data-tsub')||'').split(' ');
        var ci=(c.getAttribute('data-idiomas')||'').split(' ').filter(Boolean);
        var cd=(c.getAttribute('data-dias')||'').split(' ');
        if(tv.length && !tv.some(function(v){return ct.indexOf(v)>=0;})) return false;
        if(sv.length && !sv.some(function(v){return cs.indexOf(v)>=0;})) return false;
        if(iv.length){ var im=(ci.length===0)?true:iv.some(function(v){return ci.indexOf(v)>=0;}); if(!im) return false; }
        if(dows){ var m=false; cd.forEach(function(x){ if(dows[parseInt(x,10)]) m=true; }); if(!m) return false; }
        return true;
      }
      function apply(){
        var eligible=[];
        cards.forEach(function(c){ if(matches(c)) eligible.push(c); else c.style.display='none'; });
        eligible.forEach(function(c,i){ c.style.display=(shownLimit>i)?'flex':'none'; });
        if(verMas) verMas.style.display=(eligible.length>shownLimit)?'inline-block':'none';
        if(empty) empty.style.display=(eligible.length===0)?'block':'none';
      }
      function resetAndApply(){ shownLimit=STEP; apply(); }
      function sortCards(){
        var mode=sortSel?sortSel.value:'';
        if(mode){
          cards.sort(function(a,b){ var pa=parseFloat(a.getAttribute('data-precio'))||0; var pb=parseFloat(b.getAttribute('data-precio'))||0; return (mode==='precio-desc')?(pb-pa):(pa-pb); });
        }
        if(grid) cards.forEach(function(c){ grid.appendChild(c); });
      }
      allCbs.forEach(function(c){ c.addEventListener('change',function(){ paint(c); resetAndApply(); }); });
      if(dDesde) dDesde.addEventListener('change',resetAndApply);
      if(dHasta) dHasta.addEventListener('change',resetAndApply);
      if(sortSel) sortSel.addEventListener('change',function(){ sortCards(); apply(); });
      if(verMas) verMas.addEventListener('click',function(e){ e.preventDefault(); shownLimit+=STEP; apply(); });
      var clr=w.querySelector('.tt-f-clear');
      if(clr) clr.addEventListener('click',function(e){ e.preventDefault(); allCbs.forEach(function(c){c.checked=false;paint(c);}); if(dDesde)dDesde.value=''; if(dHasta)dHasta.value=''; if(sortSel)sortSel.value=''; resetAndApply(); });
      apply();
    });
  });
})();