/* ============ CALCULATOR (docs/05 formula) ============ */
function fmt(n){return "$"+Math.round(n).toLocaleString("en-US");}

const CURS=[
  {val:"JOD:1.41",key:"calc.opt.jod"},
  {val:"EGP:0.021",key:"calc.opt.egp"},
  {val:"SYP:0.00007",key:"calc.opt.syp"},
  {val:"USD:1",key:"calc.opt.usd"},
  {val:"EUR:1.08",key:"calc.opt.eur"},
  {val:"MAD:0.10",key:"calc.opt.mad"},
  {val:"XOF:0.0017",key:"calc.opt.xof"}
];
const PLANS=[
  {val:"349:0.025:0.04:launch",key:"calc.opt.launch"},
  {val:"599:0.02:0.03:growth",key:"calc.opt.growth"},
  {val:"879:0.01:0.02:sov",key:"calc.opt.sov"}
];

function buildCalcDropdowns(){
  const d=I18N[LANG];
  const curSel=$("#cur"),planSel=$("#plan");
  const curVal=curSel.value,planVal=planSel.value;
  curSel.innerHTML="";planSel.innerHTML="";
  CURS.forEach(c=>{const o=document.createElement("option");o.value=c.val;o.textContent=d[c.key]||c.val;curSel.appendChild(o);});
  PLANS.forEach(p=>{const o=document.createElement("option");o.value=p.val;o.textContent=d[p.key]||p.val;planSel.appendChild(o);});
  curSel.value=curVal;planSel.value=planVal;
}

function calc(){
  const trips=+$("#trips").value;
  const fare=+$("#fare").value||0;
  const [curCode, rate]=$("#cur").value.split(":");
  const [baseVal, gmvVal, minVal, pKey]=$("#plan").value.split(":");
  const base = +baseVal, minRate = +minVal;
  const usd = fare * (+rate);
  const monthlyTrips = trips * 30;
  const gmv = monthlyTrips * usd;
  
  let gmvFee;
  if(pKey === "launch"){
    if(gmv <= 50000) gmvFee = gmv * 0.025;
    else if(gmv <= 200000) gmvFee = 50000 * 0.025 + (gmv - 50000) * 0.02;
    else gmvFee = 50000 * 0.025 + 150000 * 0.02 + (gmv - 200000) * 0.015;
  } else if(pKey === "growth"){
    if(gmv <= 50000) gmvFee = gmv * 0.02;
    else if(gmv <= 200000) gmvFee = 50000 * 0.02 + (gmv - 50000) * 0.015;
    else gmvFee = 50000 * 0.02 + 150000 * 0.015 + (gmv - 200000) * 0.01;
  } else {
    gmvFee = gmv * 0.01;
  }

  const minMonthly = monthlyTrips * minRate;
  const tripz = base + Math.max(minMonthly, gmvFee);
  const commission = monthlyTrips * 0.10;
  const floor = monthlyTrips * 0.05;
  
  $("#rTripz").textContent = fmt(tripz);
  $("#rComm").textContent = fmt(commission);
  $("#rFloor").textContent = fmt(floor);
  
  const save = Math.max(commission, floor) - tripz;
  const bigEl = $("#saveBig");
  bigEl.textContent = (save > 0 ? fmt(save * 12) : "$0") + "/yr";
  const sv = $("#savings"); sv.classList.remove("bump"); void sv.offsetWidth; sv.classList.add("bump");

  const pct = ((trips - 50) / (5000 - 50)) * 100;
  $("#trips").style.setProperty("--p", pct + "%");
  $("#tripsVal").textContent = trips.toLocaleString("en-US") + " / day";
  
  const msg = encodeURIComponent(`Tripz — ${I18N[LANG]["calc.r.savecap"]}: ${bigEl.textContent} | ${trips}/day @ ${fare} ${curCode}`);
  $("#waCalc").href = "https://wa.me/201023248456?text=" + msg;
}

/* ============ CALC INPUTS ============ */
["trips","fare","cur","plan"].forEach(id=>$("#"+id).addEventListener("input",calc));