/**
 * Testimonials marquee — same logic as myfundedfutures.com Reviews section:
 * - Fisher–Yates shuffle, 3 cards per row
 * - 3 rows × 3 duplicate tracks
 * - Row speeds: 125s / 75s reverse / 275s (Framer Motion durations → CSS linear)
 */
(function () {
  var ROW_CONFIG = [
    { duration: 125, reverse: false },
    { duration: 75, reverse: true },
    { duration: 275, reverse: false },
  ];
  var TRACK_COUNT = 3;
  var CARDS_PER_ROW = 3;

  function shuffle(list) {
    var arr = list.slice();
    for (var i = arr.length - 1; i > 0; i--) {
      var j = Math.floor(Math.random() * (i + 1));
      var tmp = arr[i];
      arr[i] = arr[j];
      arr[j] = tmp;
    }
    return arr;
  }

  function pickCards(cards, count) {
    return shuffle(cards).slice(0, Math.min(count, cards.length));
  }

  function buildTrack(cards, duration, reverse, trackIndex) {
    var track = document.createElement('div');
    track.className =
      'au2-testimonials__track' + (reverse ? ' au2-testimonials__track--reverse' : '');
    track.style.setProperty('--duration', duration + 's');
    if (trackIndex > 0) {
      track.setAttribute('aria-hidden', 'true');
    }

    cards.forEach(function (card) {
      track.appendChild(card.cloneNode(true));
    });

    return track;
  }

  function buildRow(cards, config) {
    var row = document.createElement('div');
    row.className = 'au2-testimonials__row';
    var picked = pickCards(cards, CARDS_PER_ROW);

    for (var i = 0; i < TRACK_COUNT; i++) {
      row.appendChild(buildTrack(picked, config.duration, config.reverse, i));
    }

    return row;
  }

  function initAu2TestimonialsMarquee() {
    var root = document.querySelector('[data-au2-testimonials-marquee]');
    if (!root) return;

    var source = root.querySelector('.au2-testimonials__source');
    var rowsEl = root.querySelector('.au2-testimonials__rows');
    if (!source || !rowsEl) return;

    var cards = Array.prototype.slice.call(source.querySelectorAll('.au2-testimonial'));
    if (!cards.length) return;

    ROW_CONFIG.forEach(function (config) {
      rowsEl.appendChild(buildRow(cards, config));
    });
  }

  if (document.readyState === 'loading') {
    document.addEventListener('DOMContentLoaded', initAu2TestimonialsMarquee);
  } else {
    initAu2TestimonialsMarquee();
  }
})();