/* VoxIP Kiosk Manager — progressive enhancements. Every page works without JS. */
(function () {
  "use strict";

  const csrf = () => document.querySelector('meta[name="csrf-token"]').content;
  const $ = (sel, root = document) => root.querySelector(sel);
  const $$ = (sel, root = document) => Array.from(root.querySelectorAll(sel));

  // Mobile navigation
  const toggle = $("[data-nav-toggle]");
  if (toggle) {
    toggle.addEventListener("click", () => {
      const nav = $("#mainnav");
      const open = nav.classList.toggle("open");
      toggle.setAttribute("aria-expanded", String(open));
    });
  }

  // Confirmation dialog for dangerous actions (forms with data-confirm)
  const dialog = $("#confirm-dialog");
  $$("form[data-confirm]").forEach((form) => {
    form.addEventListener("submit", (event) => {
      if (form.dataset.confirmed === "1" || !dialog || typeof dialog.showModal !== "function") return;
      event.preventDefault();
      $("[data-confirm-title]", dialog).textContent = form.dataset.confirmTitle || "Weet je het zeker?";
      $("[data-confirm-text]", dialog).textContent = form.dataset.confirm;
      dialog.returnValue = "";
      dialog.showModal();
      dialog.addEventListener("close", function onClose() {
        dialog.removeEventListener("close", onClose);
        if (dialog.returnValue === "ok") {
          form.dataset.confirmed = "1";
          form.requestSubmit ? form.requestSubmit() : form.submit();
        }
      });
    });
  });

  // Disable buttons while a form submits, to prevent double actions
  $$("form").forEach((form) => {
    form.addEventListener("submit", (event) => {
      if (event.defaultPrevented || form.method.toLowerCase() !== "post") return;
      setTimeout(() => $$("button[type=submit], button:not([type])", form).forEach((b) => (b.disabled = true)), 0);
    });
  });

  // Meters (width set here because the CSP forbids inline styles)
  function setMeter(el, pct) {
    const value = Math.max(0, Math.min(100, Number(pct) || 0));
    el.style.width = value + "%";
    el.classList.toggle("is-high", value >= 90);
    el.classList.toggle("is-mid", value >= 75 && value < 90);
  }
  $$("[data-meter]").forEach((el) => setMeter(el, el.dataset.pct));

  // Local time for epoch timestamps
  $$("time[data-epoch]").forEach((el) => {
    const d = new Date(Number(el.dataset.epoch) * 1000);
    el.dateTime = d.toISOString();
    el.textContent = d.toLocaleString("nl-NL", { dateStyle: "short", timeStyle: "medium" });
  });

  // Live dashboard
  const live = $("[data-live-status]");
  if (live) {
    const get = (obj, path) => path.split(".").reduce((o, k) => (o == null ? o : o[k]), obj);
    const refresh = async () => {
      try {
        const res = await fetch(live.dataset.liveStatus, { headers: { Accept: "application/json" }, cache: "no-store" });
        if (res.status === 401) return location.reload();
        if (!res.ok) return;
        const data = await res.json();
        $$("[data-field]").forEach((el) => {
          const value = get(data, el.dataset.field);
          if (value !== undefined && value !== null) el.textContent = value;
        });
        $$("[data-meter]").forEach((el) => setMeter(el, data[el.dataset.meter]));
        $$("[data-badge]").forEach((el) => {
          const key = el.dataset.badge;
          let status, label;
          if (key === "temperature") { status = data.temperature_status; label = data.temperature; }
          else if (data[key]) { status = data[key].status; label = data[key].label; }
          if (!status) return;
          el.className = "badge badge-" + status;
          $("[data-badge-label]", el).textContent = label;
        });
      } catch (e) { /* device rebooting or offline: try again next round */ }
    };
    setInterval(refresh, 5000);
  }

  // Screenshot
  const shotBtn = $("[data-screenshot-btn]");
  if (shotBtn) {
    const box = $("[data-screenshot]");
    const img = $("img", box);
    const msg = $("[data-screenshot-msg]", box);
    shotBtn.addEventListener("click", async () => {
      shotBtn.disabled = true;
      msg.textContent = "Screenshot maken…";
      msg.hidden = false;
      try {
        const res = await fetch(box.dataset.screenshot + "?t=" + Date.now(), { cache: "no-store" });
        if (!res.ok) throw new Error(await res.text());
        const blob = await res.blob();
        if (img.src) URL.revokeObjectURL(img.src);
        img.src = URL.createObjectURL(blob);
        img.hidden = false;
        msg.hidden = true;
      } catch (e) {
        img.hidden = true;
        msg.textContent = e.message || "Screenshot niet beschikbaar.";
      } finally {
        shotBtn.disabled = false;
      }
    });
  }

  // Static IP fields only when "Statisch" is selected
  $$("form[data-ipform]").forEach((form) => {
    const fields = $("[data-static-fields]", form);
    const update = () => {
      const method = $('input[name="method"]:checked', form);
      fields.hidden = !method || method.value !== "static";
    };
    $$('input[name="method"]', form).forEach((r) => r.addEventListener("change", update));
    update();
  });

  // "Scherm altijd aan" hides the timeout field
  $$("[data-toggle-target]").forEach((box) => {
    const target = $(box.dataset.toggleTarget);
    const update = () => { if (target) target.hidden = box.checked; };
    box.addEventListener("change", update);
    update();
  });

  // Wifi scan
  const scanBtn = $("[data-wifi-scan]");
  if (scanBtn) {
    const form = scanBtn.closest("form");
    const list = $("[data-scan-results]", form);
    const datalist = $("#wifi-networks");
    scanBtn.addEventListener("click", async () => {
      scanBtn.disabled = true;
      scanBtn.textContent = "Scannen…";
      list.hidden = false;
      list.replaceChildren(Object.assign(document.createElement("li"), { textContent: "Netwerken zoeken…", className: "muted" }));
      try {
        const res = await fetch(scanBtn.dataset.wifiScan, { method: "POST", headers: { "X-CSRF-Token": csrf(), Accept: "application/json" } });
        const data = await res.json();
        if (!res.ok) throw new Error(data.error || "Scannen mislukt");
        list.replaceChildren();
        datalist.replaceChildren();
        if (!data.networks.length) list.append(Object.assign(document.createElement("li"), { textContent: "Geen netwerken gevonden.", className: "muted" }));
        data.networks.forEach((n) => {
          const li = document.createElement("li");
          const b = document.createElement("button");
          b.type = "button";
          const name = document.createElement("span");
          name.textContent = n.ssid + (n.in_use ? " (verbonden)" : "");
          const meta = document.createElement("span");
          meta.className = "muted";
          meta.textContent = n.signal + "% · " + (n.security === "open" ? "open" : n.security);
          b.append(name, meta);
          b.addEventListener("click", () => {
            $('input[name="ssid"]', form).value = n.ssid;
            $('input[name="open"]', form).checked = n.security === "open";
            list.hidden = true;
            $('input[name="psk"]', form).focus();
          });
          li.append(b);
          list.append(li);
          datalist.append(Object.assign(document.createElement("option"), { value: n.ssid }));
        });
      } catch (e) {
        list.replaceChildren(Object.assign(document.createElement("li"), { textContent: e.message, className: "muted" }));
      } finally {
        scanBtn.disabled = false;
        scanBtn.textContent = "Scannen";
      }
    });
  }

  // Pending network change countdown
  const pending = $("[data-pending]");
  if (pending) {
    let remaining = Number(pending.dataset.remaining) || 0;
    const counter = $("[data-countdown]", pending);
    const tick = setInterval(() => {
      remaining = Math.max(0, remaining - 1);
      counter.textContent = remaining;
      if (remaining === 0) {
        clearInterval(tick);
        setTimeout(() => location.reload(), 5000);
      }
    }, 1000);
  }

  // Redirect after the admin interface moved
  const moved = $("[data-redirect]");
  if (moved) setTimeout(() => (location.href = moved.dataset.redirect), Number(moved.dataset.redirectAfter) * 1000);

  // Scroll log views to the newest line
  $$("[data-scroll-bottom]").forEach((el) => (el.scrollTop = el.scrollHeight));
})();