/* ============================================================
   RACK & BOX — Collage Hero  (4 equal vertical video strips)
   ============================================================
   Four full-height columns, each an autoplay/muted/looped video —
   the real Rack & Box hero footage from thecollectivesynergy.com —
   layered over a full-colour category-accurate still as the
   instant-paint fallback (these videos are cross-origin, so they
   won't decode in the sandbox preview, but play normally live).
   Text overlay cycles through editorial headline sets every 6 s.
   To swap imagery: update POSTERS / VIDEOS arrays below.
   ============================================================ */

/* ESSÉ stills — brand photography, one per panel */
const POSTERS = [
(window.RB_IMGS && window.RB_IMGS["BRIDAL · IVORY GOWN"]) || "",
(window.RB_IMGS && window.RB_IMGS["TRAD · GOLD CORSET"]) || "",
(window.RB_IMGS && window.RB_IMGS["EVENING · FRINGE GOWN"]) || "",
(window.RB_IMGS && window.RB_IMGS["TRAD · CORAL BRIDE"]) || ""];

/* Real Rack & Box hero videos — distributed across the 4 panels
   (3 unique sources, one repeated for the 4th panel) */
const VIDS = window.RB_VIDEOS || [];
const VIDEOS = [VIDS[0] || "", VIDS[1] || "", VIDS[2] || "", VIDS[3] || ""];


const SLIDES = [
{
  eyebrow: "The Bridal Suite",
  h: ["Dressed for", "the Vow."],
  cta: "Shop Bridal",
  ctaFn: (nav) => nav("shop", { cat: "Bridal" })
},
{
  eyebrow: "Traditional & Aso-Ebi",
  h: ["Your Culture,", "Cut Sharp."],
  cta: "Shop Traditional",
  ctaFn: (nav) => nav("shop", { cat: "Traditional" })
},
{
  eyebrow: "The Red Carpet",
  h: ["Made to be", "Photographed."],
  cta: "Shop Eveningwear",
  ctaFn: (nav) => nav("shop", { cat: "Eveningwear" })
}];


/* ── Single video strip (poster still, film attached after first paint so
      heavy media never blocks the page load) ── */
function ImageStrip({ src, videoSrc, delay }) {
  const vidRef = useRef(null);
  useEffect(() => {
    if (!videoSrc) return;
    const t = setTimeout(() => {
      const v = vidRef.current;
      if (!v) return;
      v.src = videoSrc;
      const p = v.play();
      if (p && p.catch) p.catch(() => {});
    }, 400 + delay);
    return () => clearTimeout(t);
  }, [videoSrc, delay]);
  return (
    <div className="hcol-strip">
      <img
        className="hcol-media hcol-poster"
        src={src}
        alt=""
        aria-hidden="true"
        decoding="async"
        style={{ animationDelay: delay + "ms", opacity: 1 }} />
      {videoSrc ? (
        <video
          ref={vidRef}
          className="hcol-media"
          poster={src}
          muted
          loop
          playsInline
          preload="none"
          aria-hidden="true"
          style={{ animationDelay: delay + "ms" }} />
      ) : null}
    </div>);

}

/* ══════════════════════════════════════════════════════════
   MAIN COMPONENT
   ══════════════════════════════════════════════════════════ */
function HeroCollage({ onNav }) {
  const INTERVAL = 6000;

  const [idx, setIdx] = useState(0);
  const [textIn, setTextIn] = useState(true);

  useEffect(() => {
    const t = setInterval(() => {
      setTextIn(false);
      setTimeout(() => {
        setIdx((i) => (i + 1) % SLIDES.length);
        setTextIn(true);
      }, 450);
    }, INTERVAL);
    return () => clearInterval(t);
  }, []);

  const slide = SLIDES[idx];

  return (
    <section className="hero hcol-root" aria-label="Hero banner">

      {/* ── 4 equal vertical stock-image strips ── */}
      <div className="hcol-strips" aria-hidden="true">
        <ImageStrip src={POSTERS[0]} videoSrc={VIDEOS[0]} delay={0} />
        <ImageStrip src={POSTERS[1]} videoSrc={VIDEOS[1]} delay={200} />
        <ImageStrip src={POSTERS[2]} videoSrc={VIDEOS[2]} delay={400} />
        <ImageStrip src={POSTERS[3]} videoSrc={VIDEOS[3]} delay={600} />
      </div>

      {/* Cinematic gradient overlay */}
      <div className="hcol-overlay" aria-hidden="true" />

      {/* Gold top rule */}
      <div className="hcol-top-rule" aria-hidden="true" />

      {/* Vertical gap lines between strips */}
      <div className="hcol-dividers" aria-hidden="true">
        <span /><span /><span />
      </div>

      {/* Editorial text */}
      <div
        className={"hcol-content" + (textIn ? " hcol-content-in" : " hcol-content-out")}
        key={idx}>
        
        <h1 className="display hcol-h">
          <span className="hcol-hline">{slide.h[0]}</span>
          <em className="hcol-hline hcol-hem">{slide.h[1]}</em>
        </h1>
        <div className="hcol-cta-row">
          <Btn onClick={() => slide.ctaFn(onNav)}>{slide.cta}</Btn>
          <Btn variant="ghost" arrow={false} className="on-dark"
          onClick={() => onNav("custom", {})}>
            Made to Measure
          </Btn>
        </div>
      </div>



      {/* Bottom corner label */}
      <div className="hcol-corner mono" aria-hidden="true">
        {((window.BRAND && window.BRAND.name) || "Rack & Box") + " · " + ((window.BRAND && window.BRAND.seasonTag) || "SS26")}
      </div>

      {/* Scroll pulse line */}
      <div className="hcol-scroll" aria-hidden="true">
        <span className="hcol-scroll-line" />
      </div>

    </section>);

}

Object.assign(window, { HeroCollage });