/* global React */
function Hero() {
  const heroImages = [
    { src: 'hero-meinong.jpg', name: 'LIBAI HOUSE', loc: 'MEINONG · 2025' },
    { src: 'project-chao-1.jpg', name: 'CHAO', loc: 'CHAOZHOU · 2024' },
    { src: 'project-rivulet-1.jpg', name: 'THE RIVULET', loc: 'PINGTUNG · 2020' },
    { src: 'project-lightbrick-1.jpg', name: 'LIGHTBRICK I', loc: 'WANDAN · 2018' },
  ];
  const [idx, setIdx] = React.useState(0);
  React.useEffect(() => {
    const t = setInterval(() => setIdx(i => (i + 1) % heroImages.length), 5200);
    return () => clearInterval(t);
  }, []);
  const today = new Date().toLocaleDateString('en-GB', { day: '2-digit', month: 'short', year: 'numeric' }).toUpperCase();

  return (
    <section className="hero" id="section-home">
      <div className="hero-eyebrow">
        <div><span className="dot"></span>YUAN ARCHITECTURE · EST. 2016</div>
        <div className="center">
          <span>VOL. 09</span>
          <span>SOUTHERN TAIWAN</span>
          <span>{today}</span>
        </div>
        <div>苑建築 · 屏東 高雄</div>
      </div>

      <div className="hero-stage">
        <div className="hero-type">
          <div className="num-mark"><span>FT-2025</span></div>
          <h1 className="hero-display">
            Quiet<br/>
            <span className="ital">Architecture,</span><br/>
            Slow Light.
            <span className="zh-line">在南方,以白為起點。</span>
          </h1>
          <div className="hero-summary">
            <p className="lede">
              Yuan Development designs vacation homes in southern Taiwan — a small,
              award-recognised practice that prizes restraint, deep verandas, and
              the long afternoon shadow of a vertical louvre.
            </p>
            <p className="lede-zh">
              我們在屏東與高雄設計度假透天住宅。少裝飾、深陽台、垂直格柵──讓光與時間,自己說話。
            </p>
          </div>
        </div>

        <div className="hero-image">
          {heroImages.map((h, i) => (
            <div key={i} className={`img-frame ${i === idx ? 'is-on' : ''}`}>
              <img src={`assets/${h.src}`} alt="" />
            </div>
          ))}
          <div className="img-thumbs">
            {heroImages.map((h, i) => (
              <button key={i} className={i === idx ? 'is-on' : ''}
                onClick={() => setIdx(i)} aria-label={h.name}>
                <img src={`assets/${h.src}`} alt="" />
              </button>
            ))}
          </div>
          <div className="img-meta">
            <div>{heroImages[idx].name} · {heroImages[idx].loc}</div>
            <div className="img-counter">
              {String(idx + 1).padStart(2,'0')} / {String(heroImages.length).padStart(2,'0')}
            </div>
          </div>
        </div>
      </div>

      <div className="hero-foot">
        <div className="left">07 Built Works · 12 Awards</div>
        <div className="center">
          <div className="en">DESIGN MAKES LIFE BETTER</div>
          <div className="zh">設計讓生活更完美</div>
        </div>
        <a className="right" href="#section-feature"
           onClick={e => { e.preventDefault(); document.getElementById('section-feature')?.scrollIntoView({ behavior: 'smooth' }); }}>
          Explore Projects <span className="arrow"></span>
        </a>
      </div>
    </section>
  );
}
window.Hero = Hero;