/* WEBklar Analyse h.js - generiert aus client/core.js + client/h.js (node client/build.js), nicht von Hand aendern */
(function () {
'use strict';
// Reine Funktionen des Analyse-Skripts (ohne DOM-Zugriff ausser an uebergebenen Objekten).
// Wird von w.js/h.js importiert; build.js fuegt alles zu je einer Datei ohne Import zusammen.

const CONSENT_KEY = 'wk-consent';
const CONSENT_MAX_AGE = 183 * 86400000;

function vpClass(width) {
  const w = Number(width);
  if (w < 768) return 'm';
  if (w < 1024) return 't';
  return 'd';
}

function cleanPath(href) {
  let p = '/';
  try {
    p = new URL(String(href == null ? '' : href), 'http://x.invalid/').pathname || '/';
  } catch (e) { /* bleibt '/' */ }
  try { p = decodeURIComponent(p); } catch (e) { /* kaputtes Encoding: roh lassen */ }
  if (p.charAt(0) !== '/') p = '/' + p;
  return p.slice(0, 300);
}

const stripWww = (h) => String(h).toLowerCase().replace(/^www\./, '');

function refHost(referrer, ownHost) {
  if (!referrer) return '';
  try {
    const u = new URL(String(referrer));
    if (u.protocol !== 'http:' && u.protocol !== 'https:') return '';
    const h = u.hostname.toLowerCase();
    if (!h || stripWww(h) === stripWww(ownHost || '')) return '';
    return h;
  } catch (e) { return ''; }
}

// Erzeugt wirkende Namen (css-1a2b3c, ember12345, 9f8e7d6c5b4a ...) erkennen.
function looksGenerated(s) {
  if (/\d{4,}/.test(s)) return true;
  const mixed = (t, min) => t.length >= min && /\d/.test(t) && /[a-z]/i.test(t);
  if (mixed(s, 10) && !/[-_]/.test(s)) return true;
  if (/^[a-f0-9]{8,}$/i.test(s) && /\d/.test(s)) return true;
  return s.split(/[-_]/).some((p) => mixed(p, 6));
}

const safeName = (s) => String(s).replace(/[^\w-]/g, '');

function cssPath(el) {
  const parts = [];
  let n = el;
  while (n && n.tagName && parts.length < 5) {
    const tag = String(n.tagName).toLowerCase();
    let seg = tag;
    const id = n.id ? safeName(n.id) : '';
    if (id && !looksGenerated(id)) {
      parts.unshift(seg + '#' + id);
      break;
    }
    const raw = n.getAttribute ? n.getAttribute('class') : '';
    const cls = String(raw || '').split(/\s+/).map(safeName).filter((c) => c && !looksGenerated(c)).slice(0, 2);
    if (cls.length) seg += '.' + cls.join('.');
    parts.unshift(seg);
    n = n.parentNode;
  }
  let out = parts.join(' > ');
  while (out.length > 200 && parts.length > 1) { parts.shift(); out = parts.join(' > '); }
  return out.slice(0, 200);
}

function parseHref(a) {
  const href = a && (typeof a.href === 'string' && a.href ? a.href : (a.getAttribute && a.getAttribute('href'))) || '';
  return String(href).trim();
}

function linkHost(a) {
  try { return new URL(parseHref(a)).hostname.toLowerCase(); } catch (e) { return ''; }
}

function contactKind(a, ownHost) {
  const href = parseHref(a);
  if (!href) return null;
  const scheme = /^([a-z][a-z0-9+.-]*):/i.exec(href);
  if (!scheme) return null; // relativ, Anker
  const s = scheme[1].toLowerCase();
  if (s === 'tel') return 'tel';
  if (s === 'mailto') return 'mail';
  if (s === 'whatsapp') return 'wa';
  if (s !== 'http' && s !== 'https') return null;
  const host = linkHost(a);
  if (!host) return null;
  if (host === 'wa.me' || host === 'api.whatsapp.com') return 'wa';
  const own = ownHost == null ? (typeof location !== 'undefined' ? location.hostname : '') : ownHost;
  return stripWww(host) === stripWww(own || '') ? null : 'out';
}

function readConsent(storage, now) {
  try {
    const raw = storage.getItem(CONSENT_KEY);
    if (!raw) return null;
    const c = JSON.parse(raw);
    if (!c || c.v !== 1 || (c.a !== 'accept' && c.a !== 'reject') || typeof c.t !== 'number' || !isFinite(c.t)) return null;
    const age = now - c.t;
    if (age < 0 || age >= CONSENT_MAX_AGE) return null;
    return { v: 1, a: c.a, t: c.t };
  } catch (e) { return null; }
}

function contrastOk(hex) {
  if (typeof hex !== 'string' || !/^#[0-9a-f]{6}$/i.test(hex)) return false;
  const lin = (i) => {
    const c = parseInt(hex.slice(1 + i * 2, 3 + i * 2), 16) / 255;
    return c <= 0.03928 ? c / 12.92 : Math.pow((c + 0.055) / 1.055, 2.4);
  };
  const L = 0.2126 * lin(0) + 0.7152 * lin(1) + 0.0722 * lin(2);
  return 1.05 / (L + 0.05) >= 4.5;
}

function escapeHtml(s) {
  return String(s == null ? '' : s).replace(/[&<>"']/g, (c) => ({ '&': '&amp;', '<': '&lt;', '>': '&gt;', '"': '&quot;', "'": '&#39;' }[c]));
}

// WEBklar Analyse: Heatmap-Overlay (wird von w.js nur mit gueltigem ?__wk_heat=Token geladen).

function main() {
  const me = document.currentScript;
  const token = me && me.getAttribute('data-token');
  const src = String((me && (me.src || me.getAttribute('src'))) || '').replace(/[?#].*$/, '');
  const base = src.replace(/[^/]*$/, '');
  if (!token || !base) return;

  const de = document.documentElement;
  const host = document.createElement('div');
  host.style.position = 'fixed'; host.style.left = '0'; host.style.right = '0'; host.style.top = '0'; host.style.zIndex = '2147483647';
  const root = host.attachShadow({ mode: 'open' });
  const style = document.createElement('style');
  style.textContent = ':host{all:initial}.bar{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:10px 16px;background:#111;color:#fff;font:14px/1.4 system-ui,-apple-system,Segoe UI,Roboto,sans-serif}button{font:600 14px/1 system-ui,sans-serif;padding:8px 14px;border:2px solid #fff;border-radius:6px;background:#fff;color:#111;cursor:pointer}button:focus-visible{outline:3px solid #1a73e8;outline-offset:2px}';
  const bar = document.createElement('div');
  bar.className = 'bar';
  const msg = document.createElement('span');
  msg.innerHTML = escapeHtml('Heatmap wird geladen ...');
  const close = document.createElement('button');
  close.setAttribute('type', 'button');
  close.textContent = 'Schließen';
  bar.appendChild(msg); bar.appendChild(close);
  root.appendChild(style); root.appendChild(bar);
  document.body.appendChild(host);

  const canvas = document.createElement('canvas');
  const cs = canvas.style;
  cs.position = 'absolute'; cs.left = '0'; cs.top = '0'; cs.pointerEvents = 'none'; cs.zIndex = '2147483646';
  document.body.appendChild(canvas);

  let points = [];
  let lastW = 0, lastH = 0, timer = 0;

  // Farbverlauf: transparent -> blau -> gruen -> gelb -> rot
  const ramp = (function () {
    const c = document.createElement('canvas'); c.width = 256; c.height = 1;
    const g = c.getContext('2d');
    const lg = g.createLinearGradient(0, 0, 256, 0);
    lg.addColorStop(0.25, 'rgb(0,0,255)'); lg.addColorStop(0.55, 'rgb(0,255,0)'); lg.addColorStop(0.85, 'rgb(255,255,0)'); lg.addColorStop(1, 'rgb(255,0,0)');
    g.fillStyle = lg; g.fillRect(0, 0, 256, 1);
    return g.getImageData(0, 0, 256, 1).data;
  })();

  function draw() {
    const w = Math.max(de.scrollWidth, de.clientWidth, 1);
    const h = Math.max(de.scrollHeight, de.clientHeight, 1);
    lastW = w; lastH = h;
    // Zeichenflaeche begrenzen (Speicher): hoechstens ca. 4 Mio. Pixel
    const scale = Math.min(1, Math.sqrt(4e6 / (w * h)));
    const cw = Math.max(1, Math.floor(w * scale)), ch = Math.max(1, Math.floor(h * scale));
    canvas.width = cw; canvas.height = ch;
    cs.width = w + 'px'; cs.height = h + 'px';
    const g = canvas.getContext('2d');
    g.clearRect(0, 0, cw, ch);
    const r = Math.max(6, 30 * scale);
    for (const p of points) {
      const x = p.x * cw, y = p.y * ch;
      const rg = g.createRadialGradient(x, y, 0, x, y, r);
      rg.addColorStop(0, 'rgba(0,0,0,0.25)'); rg.addColorStop(1, 'rgba(0,0,0,0)');
      g.fillStyle = rg; g.fillRect(x - r, y - r, r * 2, r * 2);
    }
    // Deckkraft-Stufen in Farben umsetzen
    const img = g.getImageData(0, 0, cw, ch);
    const d = img.data;
    for (let i = 3; i < d.length; i += 4) {
      const a = d[i];
      if (!a) continue;
      const k = Math.min(255, a * 3) * 4;
      d[i - 3] = ramp[k]; d[i - 2] = ramp[k + 1]; d[i - 1] = ramp[k + 2];
      d[i] = Math.min(200, 60 + a);
    }
    g.putImageData(img, 0, 0);
  }

  function redrawIfChanged() {
    if (Math.max(de.scrollWidth, de.clientWidth) !== lastW || Math.max(de.scrollHeight, de.clientHeight) !== lastH) draw();
  }
  function stop() {
    clearInterval(timer);
    window.removeEventListener('resize', draw);
    host.remove(); canvas.remove();
  }
  close.addEventListener('click', stop);
  window.addEventListener('resize', draw);

  fetch(base + 'heat?token=' + encodeURIComponent(token), { credentials: 'omit' })
    .then(function (r) { if (!r.ok) throw new Error('heat'); return r.json(); })
    .then(function (j) {
      points = (j && Array.isArray(j.points) ? j.points : []).filter(function (p) { return p && p.x >= 0 && p.x <= 1 && p.y >= 0 && p.y <= 1; });
      msg.innerHTML = escapeHtml('Heatmap – ' + points.length + ' Klicks (letzte 30 Tage)');
      draw();
      timer = setInterval(redrawIfChanged, 1000);
    })
    .catch(function () { msg.innerHTML = escapeHtml('Heatmap-Link abgelaufen oder ungültig'); });
}

try { main(); } catch (e) { /* nie die Seite stoeren */ }

})();