/* VideoHook landing kit — shared primitives & icons */
const { useState, useEffect, useRef } = React;

/* ---- ICONS (1.5px stroke geometric, brand register) ---- */
function WAIcon({ size = 14 }) {
  return (
    <svg width={size} height={size} viewBox="0 0 24 24" fill="currentColor">
      <path d="M17.472 14.382c-.297-.149-1.758-.867-2.03-.967-.273-.099-.471-.148-.67.15-.197.297-.767.966-.94 1.164-.173.199-.347.223-.644.075-.297-.15-1.255-.463-2.39-1.475-.883-.788-1.48-1.761-1.653-2.059-.173-.297-.018-.458.13-.606.134-.133.298-.347.446-.52.149-.174.198-.298.298-.497.099-.198.05-.371-.025-.52-.075-.149-.669-1.612-.916-2.207-.242-.579-.487-.5-.669-.51-.173-.008-.371-.01-.57-.01-.198 0-.52.074-.792.372-.272.297-1.04 1.016-1.04 2.479 0 1.462 1.065 2.875 1.213 3.074.149.198 2.096 3.2 5.077 4.487.709.306 1.262.489 1.694.625.712.227 1.36.195 1.871.118.571-.085 1.758-.719 2.006-1.413.248-.694.248-1.289.173-1.413-.074-.124-.272-.198-.57-.347m-5.421 7.403h-.004a9.87 9.87 0 01-5.031-1.378l-.361-.214-3.741.982.998-3.648-.235-.374a9.86 9.86 0 01-1.51-5.26c.001-5.45 4.436-9.884 9.888-9.884 2.64 0 5.122 1.03 6.988 2.898a9.825 9.825 0 012.893 6.994c-.003 5.45-4.437 9.884-9.885 9.884m8.413-18.297A11.815 11.815 0 0012.05 0C5.495 0 .16 5.335.157 11.892c0 2.096.547 4.142 1.588 5.945L.057 24l6.305-1.654a11.882 11.882 0 005.683 1.448h.005c6.554 0 11.89-5.335 11.893-11.893a11.821 11.821 0 00-3.48-8.413z" />
    </svg>
  );
}
function Arrow({ size = 13 }) {
  return (
    <svg width={size} height={size} viewBox="0 0 14 14" fill="none">
      <path d="M2 7h10M8 3l4 4-4 4" stroke="currentColor" strokeWidth="1.5" strokeLinecap="round" strokeLinejoin="round" />
    </svg>
  );
}
function FlowArrow() {
  return (
    <svg className="how-arr" viewBox="0 0 18 18" fill="none" stroke="currentColor" strokeWidth="1.5" strokeLinecap="round" strokeLinejoin="round">
      <path d="M4 9h10M10 5l4 4-4 4" />
    </svg>
  );
}
const PAIN_ICONS = {
  doc: <path d="M4 22L22 6M10 6h12v12" />,
  clock: <g><circle cx="14" cy="14" r="10" /><path d="M14 8v6l4 3" /></g>,
  phone: <g><rect x="4" y="6" width="20" height="16" rx="2" /><path d="M9 22h10" /></g>,
  warn: <path d="M14 3l2.5 7H24l-6 4.5 2.5 7.5L14 18l-6.5 4.5L10 14.5 4 10h7.5z" />,
};
function PainIcon({ kind }) {
  return (
    <svg className="pain-icon" viewBox="0 0 28 28" fill="none" stroke="currentColor" strokeWidth="1.5" strokeLinecap="round" strokeLinejoin="round">
      {PAIN_ICONS[kind]}
    </svg>
  );
}

/* ---- BUTTONS ---- */
const WA = "https://wa.me/34671325102?text=Hola%2C%20me%20interesa%20VideoHook.";
function BtnPrimary({ children, href = WA, style }) {
  return <a className="btn-primary" href={href} target="_blank" rel="noreferrer" style={style}>{children}</a>;
}
function BtnGhost({ children, href = "#demo", style }) {
  return <a className="btn-ghost" href={href} style={style}>{children}</a>;
}

/* ---- reveal-on-scroll hook ---- */
function useReveal() {
  const ref = useRef(null);
  useEffect(() => {
    const els = ref.current ? ref.current.querySelectorAll(".reveal") : [];
    const io = new IntersectionObserver((entries) => {
      entries.forEach((e) => { if (e.isIntersecting) e.target.classList.add("in"); });
    }, { threshold: 0.12 });
    els.forEach((el) => io.observe(el));
    return () => io.disconnect();
  }, []);
  return ref;
}

/* ---- LazyVideo: poster shows instantly, source loads only when near viewport ---- */
function LazyVideo({ src, poster, className }) {
  const ref = useRef(null);
  useEffect(() => {
    const v = ref.current;
    if (!v) return;
    const io = new IntersectionObserver((entries, obs) => {
      entries.forEach((e) => {
        if (e.isIntersecting) {
          if (!v.querySelector("source")) {
            const s = document.createElement("source");
            s.src = src; s.type = "video/mp4";
            v.appendChild(s); v.load();
            v.play().catch(() => {});
          }
          obs.disconnect();
        }
      });
    }, { rootMargin: "400px 0px" });
    io.observe(v);
    return () => io.disconnect();
  }, [src]);
  return <video ref={ref} className={className} muted loop playsInline preload="none" poster={poster}></video>;
}

Object.assign(window, { WAIcon, Arrow, FlowArrow, PainIcon, BtnPrimary, BtnGhost, WA, useReveal, LazyVideo });
