(function(){
  const host = document.getElementById("toastHost");

  function iconFor(type){
    if(type === "success") return "✅";
    if(type === "error") return "⛔";
    if(type === "info") return "🛰️";
    return "🔔";
  }

  window.toast = function(type="info", title="Notice", message="", ttl=3200){
    if(!host) return;

    const el = document.createElement("div");
    el.className = `toast toast-${type}`;
    el.innerHTML = `
      <div class="toast-icon">${iconFor(type)}</div>
      <div class="toast-body">
        <div class="toast-title">${escapeHtml(title)}</div>
        <div class="toast-msg">${escapeHtml(message)}</div>
      </div>
      <button class="toast-x" aria-label="Close">✕</button>
    `;

    const remove = () => {
      el.classList.add("out");
      el.addEventListener("animationend", () => el.remove(), { once:true });
    };

    el.querySelector(".toast-x").addEventListener("click", remove);
    host.appendChild(el);
    if (ttl > 0) setTimeout(remove, ttl);
  };

  function escapeHtml(s){
    return String(s ?? "")
      .replaceAll("&","&amp;")
      .replaceAll("<","&lt;")
      .replaceAll(">","&gt;")
      .replaceAll('"',"&quot;")
      .replaceAll("'","&#039;");
  }

  // Notifications dropdown (tiny JS)
  const notif = document.getElementById("notifPanel");
  window.toggleNotif = function(){
    if(!notif) return;
    const isHidden = notif.hasAttribute("hidden");
    if(isHidden) notif.removeAttribute("hidden");
    else notif.setAttribute("hidden","");
  };
  document.addEventListener("click", (e)=>{
    if(!notif) return;
    const btn = e.target.closest(".iconbtn");
    const inside = e.target.closest("#notifPanel");
    if(inside || btn) return;
    notif.setAttribute("hidden","");
  });

  // Settings helpers: perf + alertpulse (no cookies)
  function setStorage(key, val, remember){
    try{
      if (remember) {
        localStorage.setItem(key, val);
        sessionStorage.removeItem(key);
      } else {
        sessionStorage.setItem(key, val);
        localStorage.removeItem(key);
      }
    }catch(e){}
  }
  function applyDataset(key, val){
    document.documentElement.dataset[key] = val;
    if (key === "perf") {
      const label = document.getElementById("perfLabel");
      if(label) label.textContent = val.toUpperCase();
    }
  }

  window.applyPerfFromUI = function(){
    const chosen = document.querySelector(".seg-btn.is-selected[data-perf]")?.dataset.perf;
    const remember = document.getElementById("rememberPerf")?.checked;
    const val = chosen || "auto";
    setStorage("perf", val, remember);
    applyDataset("perf", val);
    toast("success","Performance", `Profil: ${val.toUpperCase()}`, 2200);
    if (val === "low") toast("info","Hint","Low deaktiviert Starfield", 1800);
  };

  window.applyPulseFromUI = function(){
    const chosen = document.querySelector(".seg-btn.is-selected[data-alertpulse]")?.dataset.alertpulse;
    const remember = document.getElementById("rememberPulse")?.checked;
    const val = chosen || "burst";
    setStorage("alertpulse", val, remember);
    applyDataset("alertpulse", val);
    toast("success","Alerts", `Pulse: ${val.toUpperCase()}`, 2200);
  };

  // Segment button selection behavior
  document.addEventListener("click", (e)=>{
    const b = e.target.closest(".seg-btn");
    if(!b) return;
    const parent = b.closest(".seg");
    if(parent){
      parent.querySelectorAll(".seg-btn").forEach(x=>x.classList.remove("is-selected"));
      b.classList.add("is-selected");
    }
  });

  // Pre-select in settings pages
  document.addEventListener("DOMContentLoaded", ()=>{
    const perf = document.documentElement.dataset.perf || "auto";
    document.querySelectorAll('.seg-btn[data-perf]').forEach(b=>{
      if(b.dataset.perf === perf) b.classList.add("is-selected");
    });
    const pulse = document.documentElement.dataset.alertpulse || "burst";
    document.querySelectorAll('.seg-btn[data-alertpulse]').forEach(b=>{
      if(b.dataset.alertpulse === pulse) b.classList.add("is-selected");
    });
  });
})();