/* ============================================================
   ZAYNAB SAPHIR — Homepage  (hero concepts + sections)
   ============================================================ */

/* ---------------- HERO VARIANTS ---------------- */
function HeroSplit({ headline, sub, onNav }) {
  return (
    <section className="hero hero-split">
      <div className="hero-split-text">
        <h1 className="display hero-h">{headline}</h1>
        <div className="hero-cta">
          <Btn onClick={() => onNav("shop", {})}>Shop the Collection</Btn>
        </div>
        <div className="hero-meta">
          <div><strong>Worldwide</strong><span>Tracked shipping</span></div>
          <div><strong>Secure</strong><span>Card & bank transfer checkout</span></div>
        </div>
      </div>
      <div className="hero-split-media zoomable">
        <Ph label="HERO · NEW ARRIVALS" ratio="tall" />
        <div className="hero-float">
          <span className="mono">SIGNATURE</span>
          <span className="serif">Wrap Midi Dress</span>
        </div>
      </div>
    </section>
  );
}

function HeroCentered({ headline, sub, onNav }) {
  return (
    <section className="hero hero-centered">
      <Ph label="HERO · EDITORIAL" ratio="cinema" className="hero-centered-bg" />
      <div className="hero-centered-overlay" />
      <div className="hero-centered-content">
        <h1 className="display hero-h on-img">{headline}</h1>
        <div className="hero-cta center-cta">
          <Btn onClick={() => onNav("shop", {})}>Shop Now</Btn>
        </div>
      </div>
      <div className="hero-scroll">Scroll <span className="hero-scroll-line" /></div>
    </section>
  );
}

function HeroEditorial({ headline, sub, onNav }) {
  return (
    <section className="hero hero-editorial">
      <div className="hero-ed-grid">
        <div className="hero-ed-media a zoomable"><Ph label="LOOK 01 · DRESS" ratio="tall" /></div>
        <div className="hero-ed-center">
          <h1 className="display hero-h hero-ed-h">{headline}</h1>
          <Btn onClick={() => onNav("shop", {})}>Discover</Btn>
        </div>
        <div className="hero-ed-media b zoomable"><Ph label="LOOK 02 · CO-ORD" ratio="portrait" /></div>
      </div>
      <Marquee items={["Dresses", "Tops", "Skirts", "Co-ords", "Outerwear"]} />
    </section>
  );
}

function HeroStacked({ headline, sub, onNav }) {
  const words = headline.split(" ");
  return (
    <section className="hero hero-stacked">
      <div className="hero-stk-top wrap">
        <h1 className="display hero-stk-h">
          {words.map((w, i) => (
            <span key={i} className="hero-stk-word">{w} </span>
          ))}
        </h1>
      </div>
      <div className="hero-stk-band">
        <div className="hero-stk-img a zoomable"><Ph label="LOOK · EVENING EDIT" ratio="wide" /></div>
        <div className="hero-stk-card">
          <Btn block onClick={() => onNav("shop", {})}>Shop the Collection</Btn>
        </div>
        <div className="hero-stk-img b zoomable"><Ph label="LOOK · WARDROBE ESSENTIALS" ratio="portrait" /></div>
      </div>
    </section>
  );
}

/* ---------------- CAROUSEL HERO ---------------- */
function HeroCarousel({ onNav }) {
  const DURATION = 4800;

  const SLIDES = [
    {
      imgLabel: "HERO · NEW ARRIVALS",
      eyebrow: "New In",
      headline: "New Season,\nNewly Arrived.",
      sub: "Fresh pieces added regularly — shop online with delivery across Nigeria and worldwide.",
      cta: "Shop New In",
      ctaFn: () => onNav("shop", {}),
      accent: "var(--accent-bright)",
    },
    {
      imgLabel: "COLLECTION · EVENING",
      eyebrow: "Evening Edit",
      headline: "Dressed for\nEvenings Out.",
      sub: "Dresses and separates built for evenings out.",
      cta: "Shop Evening Edit",
      ctaFn: () => onNav("collections", {}),
      accent: "#e8c4c4",
    },
    {
      imgLabel: "COLLECTION · ESSENTIALS",
      eyebrow: "Wardrobe Essentials",
      headline: "Considered\nBasics.",
      sub: "Everyday pieces built to be worn often.",
      cta: "Shop Essentials",
      ctaFn: () => onNav("shop", {}),
      accent: "var(--accent-bright)",
    },
  ];

  const [cur, setCur] = useState(0);
  const [progKey, setProgKey] = useState(0);
  const pausedRef = useRef(false);
  const heroRef = useRef(null);

  useEffect(() => {
    const t = setInterval(() => {
      if (!pausedRef.current) {
        setCur(c => (c + 1) % SLIDES.length);
        setProgKey(k => k + 1);
      }
    }, DURATION);
    return () => clearInterval(t);
  }, []);

  useEffect(() => {
    const onKey = (e) => {
      if (e.key === "ArrowLeft")  { setCur(c => (c - 1 + SLIDES.length) % SLIDES.length); setProgKey(k => k + 1); }
      if (e.key === "ArrowRight") { setCur(c => (c + 1) % SLIDES.length); setProgKey(k => k + 1); }
    };
    window.addEventListener("keydown", onKey);
    return () => window.removeEventListener("keydown", onKey);
  }, []);

  useEffect(() => {
    const el = heroRef.current;
    if (!el) return;
    let tx = 0, ty = 0;
    const ts = (e) => { tx = e.touches[0].clientX; ty = e.touches[0].clientY; };
    const te = (e) => {
      const dx = e.changedTouches[0].clientX - tx;
      const dy = e.changedTouches[0].clientY - ty;
      if (Math.abs(dx) > 44 && Math.abs(dx) > Math.abs(dy)) {
        setCur(c => dx < 0 ? (c + 1) % SLIDES.length : (c - 1 + SLIDES.length) % SLIDES.length);
        setProgKey(k => k + 1);
      }
    };
    el.addEventListener("touchstart", ts, { passive: true });
    el.addEventListener("touchend", te, { passive: true });
    return () => { el.removeEventListener("touchstart", ts); el.removeEventListener("touchend", te); };
  }, []);

  const go = (n) => { setCur(((n % SLIDES.length) + SLIDES.length) % SLIDES.length); setProgKey(k => k + 1); };
  const slide = SLIDES[cur];

  return (
    <section
      ref={heroRef}
      className="hero hero-carousel"
      onMouseEnter={() => { pausedRef.current = true; }}
      onMouseLeave={() => { pausedRef.current = false; }}
    >
      <div className="hc-bgs" aria-hidden="true">
        {SLIDES.map((s, i) => {
          const src = (window.RB_IMGS || {})[s.imgLabel] || "";
          return (
            <div key={i} className={"hc-bg" + (i === cur ? " active" : "")}
              style={{ backgroundImage: src ? `url(${src})` : "none" }} />
          );
        })}
      </div>

      <div className="hc-overlay" aria-hidden="true" />
      <div className="hc-bottom-fade" aria-hidden="true" />

      <div className="hc-progress-track" aria-hidden="true">
        <div key={progKey} className="hc-progress-fill"
          style={{ "--hc-dur": DURATION + "ms", "--hc-accent": slide.accent }} />
      </div>

      <div className="wrap hc-content" key={cur}>
        <h1 className="display hc-headline">{slide.headline}</h1>
        <div className="hero-cta" style={{ marginTop: 38 }}>
          <Btn onClick={slide.ctaFn}>{slide.cta}</Btn>
        </div>
      </div>

      <button className="hc-arrow hc-prev" onClick={() => go(cur - 1)} aria-label="Previous slide">
        <svg width="20" height="20" viewBox="0 0 24 24" fill="none" stroke="currentColor" strokeWidth="1.6" strokeLinecap="round" strokeLinejoin="round"><path d="M19 12H5M11 6l-6 6 6 6"/></svg>
      </button>
      <button className="hc-arrow hc-next" onClick={() => go(cur + 1)} aria-label="Next slide">
        <svg width="20" height="20" viewBox="0 0 24 24" fill="none" stroke="currentColor" strokeWidth="1.6" strokeLinecap="round" strokeLinejoin="round"><path d="M5 12h14M13 6l6 6-6 6"/></svg>
      </button>

      <div className="hc-dots" role="tablist">
        {SLIDES.map((_, i) => (
          <button key={i} role="tab" aria-label={"Slide " + (i + 1)} aria-selected={i === cur}
            className={"hc-dot" + (i === cur ? " active" : "")}
            style={{ "--dot-accent": slide.accent }}
            onClick={() => go(i)} />
        ))}
      </div>

      <div className="hc-counter" aria-hidden="true">
        <span className="mono">{String(cur + 1).padStart(2, "0")}</span>
        <span style={{ opacity: 0.3 }}>/</span>
        <span className="mono" style={{ opacity: 0.4 }}>{String(SLIDES.length).padStart(2, "0")}</span>
      </div>
    </section>
  );
}

function Hero(props) {
  const map = {
    split: HeroSplit, centered: HeroCentered, editorial: HeroEditorial, stacked: HeroStacked, carousel: HeroCarousel,
    video: HeroVideo, aghomi: HeroAghomi, luxsplit: HeroLuxSplit, typo: HeroTypo, mosaic: HeroMosaic,
    collage: HeroCollage,
  };
  const Cmp = map[props.layout] || HeroCarousel;
  return <Cmp {...props} />;
}

/* ---------------- TRUST BAR ---------------- */
function TrustBar() {
  const items = [
    { icon: "truck", t: "Worldwide shipping", s: "Delivery across Nigeria & beyond" },
    { icon: "ruler", t: "Size guide", s: "Find your fit before you buy" },
    { icon: "return", t: "Easy returns", s: "See product page for details" },
    { icon: "shield", t: "Secure checkout", s: "Paystack & bank transfer" },
  ];
  return (
    <div className="trustbar">
      <div className="wrap trustbar-inner">
        {items.map((it) => (
          <div className="trust-item" key={it.t}>
            <Icon name={it.icon} size={22} stroke={1.4} />
            <div><span className="trust-t">{it.t}</span><span className="trust-s">{it.s}</span></div>
          </div>
        ))}
      </div>
    </div>
  );
}

/* ---------------- CATEGORY STRIP ---------------- */
function CategoryStrip({ onNav }) {
  const cats = RB.CATEGORIES.map((name, i) => ({ name, disp: name, label: name.toUpperCase(), n: String(i + 1).padStart(2, "0") }));
  return (
    <section className="section-pad-sm">
      <div className="wrap-wide">
        <Reveal className="section-head" style={{ marginBottom: 40 }}>
          <h2 className="serif">Shop by category</h2>
          <button className="link-arrow" onClick={() => onNav("shop", {})}>All products</button>
        </Reveal>
        <div className="cat-strip">
          {cats.map((c, i) => (
            <Reveal key={c.name} delay={(i % 4) + 1} className="cat-card zoomable">
              <button className="cat-card-btn" onClick={() => onNav("shop", { cat: c.name })}>
                <Ph label={c.label} ratio="portrait" />
                <div className="cat-card-cap">
                  <span className="mono">{c.n}</span>
                  <span className="serif">{c.disp}</span>
                </div>
              </button>
            </Reveal>
          ))}
        </div>
      </div>
    </section>
  );
}

/* ---------------- FEATURED PRODUCTS ---------------- */
function FeaturedRow({ title, eyebrow, products, onNav, link }) {
  const { addToCart, toggleWish, wishlist } = useContext(RBCtx);
  return (
    <section className="section-pad">
      <div className="wrap-wide">
        <Reveal className="section-head" style={{ marginBottom: 44 }}>
          <div>
            <Eyebrow>{eyebrow}</Eyebrow>
            <h2 className="serif" style={{ marginTop: 14 }}>{title}</h2>
          </div>
          <button className="link-arrow" onClick={() => onNav("shop", link || {})}>View all</button>
        </Reveal>
        <div className="product-grid">
          {products.map((p, i) => (
            <Reveal key={p.id} delay={(i % 4) + 1}>
              <ProductCard p={p} onNav={onNav} onAdd={addToCart} wished={wishlist.includes(p.id)} onWish={toggleWish} />
            </Reveal>
          ))}
        </div>
      </div>
    </section>
  );
}

/* ---------------- STORY ---------------- */
function StorySection({ onNav }) {
  return (
    <section className="section-pad story-sec">
      <div className="wrap-wide story-grid">
        <Reveal className="story-media zoomable"><Ph label="STORY · ABOUT" ratio="portrait" /></Reveal>
        <div className="story-body">
          <Reveal><Eyebrow line>Our Story</Eyebrow></Reveal>
          <Reveal delay={1}><h2 className="serif story-h">Women's clothing, made to be worn.</h2></Reveal>
          <Reveal delay={2}>
            <p className="lede" style={{ marginBottom: 22 }}>
              {(window.BRAND?.story.body) || "New arrivals are added regularly — shop online with delivery across Nigeria and worldwide."}
            </p>
          </Reveal>
          <Reveal delay={3} className="row" style={{ gap: 18, flexWrap: "wrap" }}>
            <Btn onClick={() => onNav("about", {})}>Read our story</Btn>
          </Reveal>
        </div>
      </div>
    </section>
  );
}

/* ---------------- COLLECTIONS STRIP ---------------- */
function OccasionSection({ onNav }) {
  return (
    <section className="section-pad occ-sec">
      <div className="wrap-wide">
        <Reveal className="section-head center-head">
          <div className="center" style={{ width: "100%" }}>
            <Eyebrow>Curated edits</Eyebrow>
            <h2 className="serif" style={{ margin: "14px auto 0", maxWidth: "none" }}>Shop by collection</h2>
          </div>
        </Reveal>
        <div className="occ-grid">
          {RB.COLLECTIONS.map((c, i) => (
            <Reveal key={c.id} delay={(i % 4) + 1} className="occ-card zoomable">
              <button className="occ-card-btn" onClick={() => onNav("collections", {})}>
                <Ph label={"OCCASION · " + String(c.id).toUpperCase()} ratio={i % 2 === 0 ? "tall" : "portrait"} />
                <div className="occ-overlay" />
                <div className="occ-cap">
                  <span className="mono">{String(c.count).padStart(2, "0")} pieces</span>
                  <span className="serif occ-title">{c.title}</span>
                  <span className="occ-blurb">{c.blurb}</span>
                  <span className="link-arrow on-img">Explore</span>
                </div>
              </button>
            </Reveal>
          ))}
        </div>
      </div>
    </section>
  );
}

/* ---------------- FAQ ---------------- */
function FAQ() {
  const [open, setOpen] = useState(0);
  return (
    <section className="section-pad">
      <div className="wrap faq-grid">
        <div className="faq-head">
          <Eyebrow line>Good to know</Eyebrow>
          <h2 className="serif" style={{ fontSize: "clamp(32px,4vw,52px)", fontWeight: 500, marginTop: 16, lineHeight: 1.04 }}>Frequently asked questions</h2>
          <p style={{ color: "var(--ink-soft)", marginTop: 18 }}>Can't find an answer? Reach out via the contact page.</p>
        </div>
        <div className="faq-list">
          {RB.FAQS.map((f, i) => (
            <div className={"faq-item" + (open === i ? " open" : "")} key={i}>
              <button className="faq-q" onClick={() => setOpen(open === i ? -1 : i)}>
                <span>{f.q}</span><Icon name={open === i ? "minus" : "plus"} size={20} />
              </button>
              <div className="faq-a"><p>{f.a}</p></div>
            </div>
          ))}
        </div>
      </div>
    </section>
  );
}

/* ---------------- INSTAGRAM STRIP ---------------- */
function CommunityStrip() {
  const tiles = ["01", "02", "03", "04", "05", "06"];
  return (
    <section className="insta-sec">
      <div className="center" style={{ marginBottom: 32 }}>
        <Eyebrow>{(window.BRAND && window.BRAND.igHandle) || "@zaynabsaphirng"}</Eyebrow>
        <h2 className="serif" style={{ fontSize: "clamp(28px,3.4vw,42px)", fontWeight: 500, marginTop: 10 }}>Follow along</h2>
      </div>
      <div className="insta-row">
        {tiles.map((c, i) => (
          <a key={i} className="insta-cell zoomable" href="#" aria-label="Instagram">
            <Ph label={"GALLERY · " + c} ratio="square" />
            <span className="insta-ic"><Icon name="ig" size={20} /></span>
          </a>
        ))}
      </div>
    </section>
  );
}

/* ---------------- PRODUCT CARD ---------------- */
function ProductCard({ p, onNav, onAdd, wished, onWish }) {
  return (
    <article className="pcard zoomable" onClick={() => onNav("product", { id: p.id })}>
      <div className="pcard-media">
        {p.badge && <span className="pcard-tag">{p.badge}</span>}
        <button className={"wish" + (wished ? " active" : "")} onClick={(e) => { e.stopPropagation(); onWish(p.id); }} aria-label="Wishlist">
          <Icon name={wished ? "star-f" : "heart"} size={17} />
        </button>
        <Ph label={p.label} ratio="portrait" />
        <button className="quick" onClick={(e) => { e.stopPropagation(); onAdd(p, { size: p.sizes[1] || p.sizes[0], color: p.colors[0].name }); }}>
          + Quick add
        </button>
      </div>
      <div className="pcard-body">
        <span className="pcard-cat">{p.cat}</span>
        <span className="pcard-name">{p.name}</span>
        <span className="pcard-price"><Price ngn={p.price} old={p.oldPrice} /></span>
        <div className="swatches">{p.colors.slice(0, 4).map((c) => <span key={c.name} className="swatch" style={{ background: c.hex }} title={c.name} />)}</div>
      </div>
    </article>
  );
}

/* ---------------- HOME PAGE ---------------- */
function HomePage({ onNav, tweaks }) {
  const newArrivals = RB.PRODUCTS.filter((p) => p.badge === "New" || p.badge === "Signature").slice(0, 4);
  const featured = RB.PRODUCTS.slice(0, 4);
  return (
    <div className="fade-page">
      <Hero layout={tweaks.heroLayout} headline={tweaks.heroHeadline} sub={tweaks.heroSub} onNav={onNav} />
      <TrustBar />
      <CategoryStrip onNav={onNav} />
      <FeaturedRow eyebrow="Just arrived" title="New this season" products={newArrivals} onNav={onNav} />
      <FeaturedRow eyebrow="Shop the range" title="Featured pieces" products={featured} onNav={onNav} />
      <FilmCollage />
      <StorySection onNav={onNav} />
      <OccasionSection onNav={onNav} />
      <BespokeBand onNav={onNav} />
      <FAQ />
      <CommunityStrip />
    </div>
  );
}

Object.assign(window, { HomePage, ProductCard, Hero, HeroCarousel, FAQ });