/**
 * Heli-Funk-Pille — shared Modul fuer game.html, start.html, landing.html,
 * Drehbuch-Tool. Zeigt waehrend laufender Sprachausgabe einen Sprecher mit
 * Bild + Untertitel + Restzeit-Balken oben mittig im Viewport.
 *
 * Quellen:
 *   - speakers.json   (zentrales Sprecher-Mapping)
 *   - audio-texts.json (konsolidierte Audio-ID → Text-Map)
 *
 * Init asynchron:
 *   await HeliFunk.init(scriptsBaseUrl, imagesBaseUrl)
 *
 * Anzeigen/Verstecken (audioId stammt aus dem Spiel-Code):
 *   HeliFunk.show(audioId, { duration: bufferDurationSeconds, heliKey: 'c8' })
 *   HeliFunk.tick(elapsedSec)        // optional, kontinuierlich
 *   HeliFunk.hide()
 *
 * Skip-Button: ruft die optional uebergebene onSkip-Callback auf.
 *   HeliFunk.show(audioId, { duration, heliKey, onSkip: function(){ ... } })
 */
(function(global){
  'use strict';

  var SPEAKERS = null;
  var TEXTS = null;
  var IMG_BASE = '';
  var ready = false;
  var pendingShows = [];
  var current = null; // {audioId, durationSec, startMs, onSkip}
  var rafHandle = 0;

  // ============================================================
  //  CSS — wird einmal per <style>-Tag injiziert
  // ============================================================
  var CSS = ''
    + '#heliFunkPille{position:fixed;top:.6rem;left:50%;transform:translateX(-50%);z-index:9500;'
    + 'background:rgba(31,75,55,.94);color:#f5efe0;border-radius:12px;box-shadow:0 4px 14px rgba(0,0,0,.35);'
    + 'padding:.55rem .8rem;display:none;align-items:center;gap:.7rem;max-width:min(720px,calc(100vw - 1.4rem));'
    + 'font-family:"Inter",system-ui,sans-serif;pointer-events:none}'
    + '#heliFunkPille.show{display:flex}'
    + '#heliFunkPille .fp-img{width:54px;height:54px;border-radius:50%;background:#1f4b37;'
    + 'border:2.5px solid #e8c547;flex-shrink:0;background-size:cover;background-position:center}'
    + '#heliFunkPille .fp-body{display:flex;flex-direction:column;gap:.15rem;min-width:240px;flex:1;min-width:0}'
    + '#heliFunkPille .fp-meta{display:flex;align-items:center;gap:.5rem;font-size:.7rem;font-weight:800;letter-spacing:.05em;opacity:.85}'
    + '#heliFunkPille .fp-meta .fp-icon{color:#e8c547}'
    + '#heliFunkPille .fp-text{font-size:.85rem;line-height:1.35;font-weight:500;'
    + 'overflow:hidden;text-overflow:ellipsis;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;max-width:520px}'
    + '#heliFunkPille .fp-bar{margin-top:.18rem;height:4px;background:rgba(255,255,255,.18);border-radius:2px;overflow:hidden}'
    + '#heliFunkPille .fp-bar-fill{height:100%;background:#e8c547;width:0%;transition:width .12s linear}'
    + '#heliFunkPille .fp-skip{pointer-events:auto;margin-left:.4rem;background:rgba(255,255,255,.12);'
    + 'color:#f5efe0;border:none;border-radius:6px;padding:.3rem .55rem;font-size:.7rem;font-weight:700;cursor:pointer;font-family:inherit}'
    + '#heliFunkPille .fp-skip:hover{background:rgba(255,255,255,.2)}'
    + '#heliFunkPille .fp-skip:disabled{opacity:.4;cursor:not-allowed}'
    + '@media(max-width:600px){#heliFunkPille .fp-img{width:42px;height:42px}#heliFunkPille .fp-text{font-size:.78rem;-webkit-line-clamp:2}#heliFunkPille .fp-body{min-width:160px}}';

  function injectCss(){
    if (document.getElementById('heliFunkPilleStyle')) return;
    var s = document.createElement('style');
    s.id = 'heliFunkPilleStyle';
    s.textContent = CSS;
    document.head.appendChild(s);
  }

  function buildElement(){
    if (document.getElementById('heliFunkPille')) return;
    var d = document.createElement('div');
    d.id = 'heliFunkPille';
    d.innerHTML = ''
      + '<div class="fp-img" id="heliFunkPilleImg"></div>'
      + '<div class="fp-body">'
      +   '<div class="fp-meta"><span class="fp-icon">🎙️</span><span id="heliFunkPilleLabel">—</span></div>'
      +   '<div class="fp-text" id="heliFunkPilleText">—</div>'
      +   '<div class="fp-bar"><div class="fp-bar-fill" id="heliFunkPilleFill"></div></div>'
      + '</div>'
      + '<button class="fp-skip" id="heliFunkPilleSkip" disabled>⏭ Skip</button>';
    document.body.appendChild(d);
    document.getElementById('heliFunkPilleSkip').addEventListener('click', function(){
      if (current && typeof current.onSkip === 'function') {
        try { current.onSkip(); } catch(_){}
      }
    });
  }

  // ============================================================
  //  Init: speakers.json + audio-texts.json laden
  // ============================================================
  async function init(scriptsBaseUrl, imagesBaseUrl){
    if (ready) return;
    IMG_BASE = imagesBaseUrl || '';
    try {
      var [s, t] = await Promise.all([
        fetch(scriptsBaseUrl + '/speakers.json').then(function(r){ return r.json(); }),
        fetch(scriptsBaseUrl + '/audio-texts.json').then(function(r){ return r.json(); })
      ]);
      SPEAKERS = s;
      TEXTS = t;
      ready = true;
      // Seitenelemente erst nach DOM-ready einhaengen
      if (document.readyState === 'loading') {
        document.addEventListener('DOMContentLoaded', function(){ injectCss(); buildElement(); flushPending(); });
      } else {
        injectCss(); buildElement(); flushPending();
      }
    } catch(e) {
      console.warn('HeliFunk init failed:', e);
    }
  }

  function flushPending(){
    while (pendingShows.length){
      var p = pendingShows.shift();
      doShow(p.audioId, p.opts);
    }
  }

  // ============================================================
  //  Sprecher-Resolver (mit Regeln aus speakers.json)
  // ============================================================
  function resolveSpeaker(audioId, heliKey){
    if (!SPEAKERS || !SPEAKERS.rules) return null;
    for (var i = 0; i < SPEAKERS.rules.length; i++){
      var r = SPEAKERS.rules[i];
      if (new RegExp(r.match).test(audioId)) {
        var speakerKey = r.speaker;
        if (speakerKey === '{pilot}') {
          // Fallback wenn heliKey fehlt: Marlene (pilot_b_f) — laut speakers.json
          // _pilot_by_helikey aktuell ALLE Stuetzpunkte auf Marlene gemappt.
          speakerKey = (SPEAKERS.pilot_by_helikey || {})[heliKey] || 'pilot_b_f';
        }
        var sp = (SPEAKERS.speakers || {})[speakerKey];
        if (!sp) continue;
        // Label-Variablen aufloesen
        var label = r.label || sp.label;
        if (label && label.indexOf('{tower_city}') !== -1) {
          var city = (SPEAKERS.tower_city_by_helikey || {})[heliKey];
          if (city) {
            label = label.replace('{tower_city}', city);
          } else {
            // heliKey unbekannt -> doppeltes "Tower" vermeiden, ' {tower_city}' rausnehmen
            label = label.replace(/\s*\{tower_city\}/g, '').trim() || 'Tower';
          }
        }
        if (label && label.indexOf('{pilot_label}') !== -1) {
          label = label.replace('{pilot_label}', sp.label || speakerKey);
        }
        return { key: speakerKey, label: label, image: IMG_BASE + '/' + sp.image, role: sp.role, gender: sp.gender };
      }
    }
    return null;
  }

  function getText(audioId){
    if (!TEXTS) return '';
    return TEXTS[audioId] || '';
  }

  // ============================================================
  //  show / hide / tick
  // ============================================================
  function show(audioId, opts){
    opts = opts || {};
    if (!ready) { pendingShows.push({audioId: audioId, opts: opts}); return; }
    doShow(audioId, opts);
  }

  function doShow(audioId, opts){
    var heliKey = opts.heliKey || '';
    var speaker = resolveSpeaker(audioId, heliKey);
    var text = getText(audioId) || opts.fallbackText || '';
    var dur = Math.max(2, opts.duration || 6);
    var d = document.getElementById('heliFunkPille');
    if (!d) { pendingShows.push({audioId: audioId, opts: opts}); return; }
    var img = document.getElementById('heliFunkPilleImg');
    var lbl = document.getElementById('heliFunkPilleLabel');
    var txt = document.getElementById('heliFunkPilleText');
    var fill = document.getElementById('heliFunkPilleFill');
    var skip = document.getElementById('heliFunkPilleSkip');
    if (speaker) {
      img.style.backgroundImage = 'url(' + speaker.image + ')';
      lbl.textContent = speaker.label || speaker.key;
    } else {
      img.style.backgroundImage = '';
      lbl.textContent = audioId;
    }
    txt.textContent = text;
    fill.style.width = '0%';
    skip.disabled = !opts.onSkip;
    d.classList.add('show');
    current = { audioId: audioId, durationSec: dur, startMs: performance.now(), onSkip: opts.onSkip || null };
    if (rafHandle) cancelAnimationFrame(rafHandle);
    rafHandle = requestAnimationFrame(loop);
  }

  function hide(){
    var d = document.getElementById('heliFunkPille');
    if (d) d.classList.remove('show');
    current = null;
    if (rafHandle) { cancelAnimationFrame(rafHandle); rafHandle = 0; }
  }

  function loop(){
    if (!current) return;
    var elapsed = (performance.now() - current.startMs) / 1000;
    var fill = document.getElementById('heliFunkPilleFill');
    if (fill) {
      var f = Math.min(1, elapsed / current.durationSec);
      fill.style.width = (f * 100).toFixed(1) + '%';
    }
    if (elapsed > current.durationSec + 0.3) {
      // Auto-Hide ueber Buffer-Ende — sicherer Fallback wenn onended nicht feuert
      hide();
      return;
    }
    rafHandle = requestAnimationFrame(loop);
  }

  global.HeliFunk = { init: init, show: show, hide: hide, resolveSpeaker: resolveSpeaker, getText: getText };
})(window);