"use client";

import { Canvas } from "@react-three/fiber";
import { OrbitControls, Stars } from "@react-three/drei";
import { Suspense, useRef, useState } from "react";
import * as THREE from "three";

// Einfache Partikel-Animation (WebGPU-Ersatz für jetzt)
function ParticleField() {
  const count = 2000;
  const meshRef = useRef<THREE.InstancedMesh>(null);
  const [dummy] = useState(() => new THREE.Object3D());

  // Zufällige Positionen initialisieren
  const positions = useRef(
    Array.from({ length: count }, () => ({
      x: (Math.random() - 0.5) * 20,
      y: (Math.random() - 0.5) * 20,
      z: (Math.random() - 0.5) * 20,
      speed: Math.random() * 0.02 + 0.01,
    }))
  );

  return (
    <instancedMesh ref={meshRef} args={[undefined, undefined, count]}>
      <sphereGeometry args={[0.05, 8, 8]} />
      <meshBasicMaterial color="#a855f7" transparent opacity={0.8} />
    </instancedMesh>
  );
}

import Gate from './components/Gate';

export default function Home() {
  return (
    <main className="w-full h-screen relative">
      <Canvas camera={{ position: [0, 0, 10], fov: 75 }}>
        <Suspense fallback={null}>
          <color attach="background" args={["#0a0a0a"]} />
          <ambientLight intensity={0.5} />
          <Stars radius={100} depth={50} count={5000} factor={4} saturation={0} fade speed={1} />
          <OrbitControls enableZoom={false} enablePan={false} autoRotate autoRotateSpeed={0.5} />
        </Suspense>
      </Canvas>
      <div className="absolute inset-0 z-10 flex flex-col items-center justify-center">
        <Gate />
        <div className="absolute bottom-10 flex space-x-8 text-gray-400 font-mono">
          <a href="https://faebits.com" target="_blank" rel="noopener noreferrer" className="hover:text-purple-400 transition-colors">2D-Ebene</a>
          <a href="https://3d.faebits.com" target="_blank" rel="noopener noreferrer" className="hover:text-purple-400 transition-colors">3D-Anderswelt</a>
          <a href="https://git.faebits.com" target="_blank" rel="noopener noreferrer" className="hover:text-purple-400 transition-colors">Das Archiv</a>
        </div>
      </div>
    </main>
  );
}