// MacOS.jsx — Simplified macOS Tahoe (Liquid Glass) window
// Based on the macOS Tahoe UI Kit. No image assets, no dependencies.
// Exports: MacWindow, MacSidebar, MacSidebarItem, MacToolbar, MacGlass, MacTrafficLights

const MAC_FONT = '-apple-system, BlinkMacSystemFont, "SF Pro", "Helvetica Neue", sans-serif';

// ─────────────────────────────────────────────────────────────
// Liquid glass primitive — blur + white tint + inset highlight
// ─────────────────────────────────────────────────────────────
function MacGlass({ children, radius = 296, dark = false, style = {} }) {
  return (
    <div style={{ position: 'relative', borderRadius: radius, ...style }}>
      <div style={{
        position: 'absolute', inset: 0, borderRadius: radius,
        background: dark ? 'rgba(255,255,255,0.08)' : 'rgba(255,255,255,0.35)',
        backdropFilter: 'blur(40px) saturate(180%)',
        WebkitBackdropFilter: 'blur(40px) saturate(180%)',
        border: dark ? '0.5px solid rgba(255,255,255,0.12)' : '0.5px solid rgba(255,255,255,0.6)',
        boxShadow: dark
          ? '0 8px 40px rgba(0,0,0,0.2)'
          : '0 8px 40px rgba(0,0,0,0.08), inset 0 1px 0 rgba(255,255,255,0.4)',
      }} />
      <div style={{ position: 'relative', zIndex: 1 }}>{children}</div>
    </div>
  );
}

// ─────────────────────────────────────────────────────────────
// Traffic lights (14px, Tahoe colors)
// ─────────────────────────────────────────────────────────────
function MacTrafficLights({ style = {} }) {
  const dot = (bg) => (
    <div style={{
      width: 14, height: 14, borderRadius: '50%', background: bg,
      border: '0.5px solid rgba(0,0,0,0.1)',
    }} />
  );
  return (
    <div style={{ display: 'flex', gap: 9, alignItems: 'center', padding: 1, ...style }}>
      {dot('#ff736a')}{dot('#febc2e')}{dot('#19c332')}
    </div>
  );
}

// ─────────────────────────────────────────────────────────────
// Toolbar — title + single glass pill icon
// ─────────────────────────────────────────────────────────────
function MacToolbar({ title = 'Folder' }) {
  return (
    <div style={{
      display: 'flex', gap: 8, alignItems: 'center', padding: 8, flexShrink: 0,
    }}>
      {/* title */}
      <div style={{
        fontFamily: MAC_FONT, fontSize: 15, fontWeight: 700,
        color: 'rgba(0,0,0,0.85)', whiteSpace: 'nowrap', paddingLeft: 8,
      }}>{title}</div>
      <div style={{ flex: 1 }} />
      {/* single action */}
      <MacGlass>
        <div style={{
          width: 36, height: 36, display: 'flex',
          alignItems: 'center', justifyContent: 'center',
        }}>
          <div style={{ width: 14, height: 14, borderRadius: '50%', background: '#4c4c4c', opacity: 0.4 }} />
        </div>
      </MacGlass>
      {/* search */}
      <MacGlass>
        <div style={{
          width: 140, height: 36, display: 'flex', alignItems: 'center',
          gap: 6, padding: '0 12px',
        }}>
          <svg width="13" height="13" viewBox="0 0 13 13" fill="none">
            <circle cx="5.5" cy="5.5" r="4" stroke="#727272" strokeWidth="1.5"/>
            <path d="M8.5 8.5l3 3" stroke="#727272" strokeWidth="1.5" strokeLinecap="round"/>
          </svg>
          <span style={{
            fontFamily: MAC_FONT, fontSize: 13, fontWeight: 500, color: '#727272',
          }}>Search</span>
        </div>
      </MacGlass>
    </div>
  );
}

// ─────────────────────────────────────────────────────────────
// Sidebar — frosted glass panel floating inside the window
// ─────────────────────────────────────────────────────────────
function MacSidebarItem({ label, selected = false }) {
  return (
    <div style={{
      display: 'flex', alignItems: 'center', gap: 6,
      height: 24, padding: '4px 10px 4px 6px', margin: '0 10px',
      borderRadius: 8, position: 'relative',
      fontFamily: MAC_FONT, fontSize: 11, fontWeight: 500,
    }}>
      {selected && (
        <div style={{
          position: 'absolute', inset: 0, borderRadius: 8,
          background: 'rgba(0,0,0,0.11)', mixBlendMode: 'multiply',
        }} />
      )}
      <div style={{
        width: 14, height: 14, borderRadius: '50%',
        background: selected ? '#007aff' : 'rgba(0,0,0,0.4)',
        opacity: selected ? 1 : 0.5, flexShrink: 0, position: 'relative',
      }} />
      <span style={{ color: 'rgba(0,0,0,0.85)', position: 'relative' }}>{label}</span>
    </div>
  );
}

function MacSidebar({ children }) {
  return (
    <div style={{
      width: 220, height: '100%', padding: 8, flexShrink: 0,
      position: 'relative', display: 'flex', flexDirection: 'column',
    }}>
      {/* glass panel */}
      <div style={{
        position: 'absolute', inset: 8, borderRadius: 18,
        background: 'rgba(210,225,245,0.45)',
        backdropFilter: 'blur(50px) saturate(200%)',
        WebkitBackdropFilter: 'blur(50px) saturate(200%)',
        border: '0.5px solid rgba(255,255,255,0.5)',
        boxShadow: '0 8px 40px rgba(0,0,0,0.10), inset 0 1px 0 rgba(255,255,255,0.35)',
      }} />
      {/* content */}
      <div style={{
        position: 'relative', zIndex: 1, padding: '10px 0',
        display: 'flex', flexDirection: 'column', gap: 2,
      }}>
        {/* window controls + sidebar toggle */}
        <div style={{
          height: 32, display: 'flex', alignItems: 'center',
          justifyContent: 'space-between', padding: '0 10px', marginBottom: 4,
        }}>
          <MacTrafficLights />
        </div>
        {children}
      </div>
    </div>
  );
}

function MacSidebarHeader({ title }) {
  return (
    <div style={{
      padding: '14px 18px 5px',
      fontFamily: MAC_FONT, fontSize: 11, fontWeight: 700,
      color: 'rgba(0,0,0,0.5)',
    }}>{title}</div>
  );
}

// ─────────────────────────────────────────────────────────────
// Window — r:26, big shadow, sidebar + toolbar + content
// ─────────────────────────────────────────────────────────────
function MacWindow({
  width = 900, height = 600, title = 'Folder',
  sidebar, children,
}) {
  return (
    <div style={{
      width, height, borderRadius: 26, overflow: 'hidden',
      background: '#fff',
      boxShadow: '0 0 0 1px rgba(0,0,0,0.23), 0 16px 48px rgba(0,0,0,0.35)',
      display: 'flex', position: 'relative',
      fontFamily: MAC_FONT,
    }}>
      <MacSidebar>{sidebar}</MacSidebar>
      <div style={{ flex: 1, display: 'flex', flexDirection: 'column' }}>
        <MacToolbar title={title} />
        <div style={{ flex: 1, overflow: 'auto', padding: '4px 8px' }}>
          {children}
        </div>
      </div>
    </div>
  );
}

Object.assign(window, {
  MacWindow, MacSidebar, MacSidebarItem, MacSidebarHeader,
  MacToolbar, MacGlass, MacTrafficLights,
});