import * as THREE from "three/build/three.module.js";

window.THREE = THREE; // Used by APP Scripts.

var APP = {

	Player: function () {

		var renderer = new THREE.WebGLRenderer( { antialias: true } );
		renderer.setPixelRatio( window.devicePixelRatio ); // TODO: Use player.setPixelRatio()
		renderer.outputEncoding = THREE.sRGBEncoding;

		var loader = new THREE.ObjectLoader();
		var camera, scene;

		var events = {};

		var dom = document.createElement( 'div' );
		dom.appendChild( renderer.domElement );

		this.dom = dom;

		this.width = 500;
		this.height = 500;

		this.load = function ( json ) {

			var project = json.project;

			if ( project.vr !== undefined ) renderer.xr.enabled = project.vr;
			if ( project.shadows !== undefined ) renderer.shadowMap.enabled = project.shadows;
			if ( project.shadowType !== undefined ) renderer.shadowMap.type = project.shadowType;
			if ( project.toneMapping !== undefined ) renderer.toneMapping = project.toneMapping;
			if ( project.toneMappingExposure !== undefined ) renderer.toneMappingExposure = project.toneMappingExposure;
			if ( project.physicallyCorrectLights !== undefined ) renderer.physicallyCorrectLights = project.physicallyCorrectLights;

			this.setScene( loader.parse( json.scene ) );
			this.setCamera( loader.parse( json.camera ) );

			events = {
				init: [],
				start: [],
				stop: [],
				keydown: [],
				keyup: [],
				pointerdown: [],
				pointerup: [],
				pointermove: [],
				update: []
			};

			var scriptWrapParams = 'player,renderer,scene,camera';
			var scriptWrapResultObj = {};

			for ( var eventKey in events ) {

				scriptWrapParams += ',' + eventKey;
				scriptWrapResultObj[ eventKey ] = eventKey;

			}

			var scriptWrapResult = JSON.stringify( scriptWrapResultObj ).replace( /\"/g, '' );

			for ( var uuid in json.scripts ) {

				var object = scene.getObjectByProperty( 'uuid', uuid, true );

				if ( object === undefined ) {

					console.warn( 'APP.Player: Script without object.', uuid );
					continue;

				}

				var scripts = json.scripts[ uuid ];

				for ( var i = 0; i < scripts.length; i ++ ) {

					var script = scripts[ i ];

					var functions = ( new Function( scriptWrapParams, script.source + '\nreturn ' + scriptWrapResult + ';' ).bind( object ) )( this, renderer, scene, camera );

					for ( var name in functions ) {

						if ( functions[ name ] === undefined ) continue;

						if ( events[ name ] === undefined ) {

							console.warn( 'APP.Player: Event type not supported (', name, ')' );
							continue;

						}

						events[ name ].push( functions[ name ].bind( object ) );

					}

				}

			}

			dispatch( events.init, arguments );

		};

		this.setCamera = function ( value ) {

			camera = value;
			camera.aspect = this.width / this.height;
			camera.updateProjectionMatrix();

		};

		this.setScene = function ( value ) {

			scene = value;

		};

		this.setPixelRatio = function ( pixelRatio ) {

			renderer.setPixelRatio( pixelRatio );

		};

		this.setSize = function ( width, height ) {

			this.width = width;
			this.height = height;

			if ( camera ) {

				camera.aspect = this.width / this.height;
				camera.updateProjectionMatrix();

			}

			if ( renderer ) {

				renderer.setSize( width, height );

			}

		};

		function dispatch( array, event ) {

			for ( var i = 0, l = array.length; i < l; i ++ ) {

				array[ i ]( event );

			}

		}

		var time, startTime, prevTime;

		function animate() {

			time = performance.now();

			try {

				dispatch( events.update, { time: time - startTime, delta: time - prevTime } );

			} catch ( e ) {

				console.error( ( e.message || e ), ( e.stack || '' ) );

			}

			renderer.render( scene, camera );

			prevTime = time;

		}

		this.play = function () {

			startTime = prevTime = performance.now();

			document.addEventListener( 'keydown', onKeyDown );
			document.addEventListener( 'keyup', onKeyUp );
			document.addEventListener( 'pointerdown', onPointerDown );
			document.addEventListener( 'pointerup', onPointerUp );
			document.addEventListener( 'pointermove', onPointerMove );

			dispatch( events.start, arguments );

			renderer.setAnimationLoop( animate );

		};

		this.stop = function () {

			document.removeEventListener( 'keydown', onKeyDown );
			document.removeEventListener( 'keyup', onKeyUp );
			document.removeEventListener( 'pointerdown', onPointerDown );
			document.removeEventListener( 'pointerup', onPointerUp );
			document.removeEventListener( 'pointermove', onPointerMove );

			dispatch( events.stop, arguments );

			renderer.setAnimationLoop( null );

		};

		this.render = function ( time ) {

			dispatch( events.update, { time: time * 1000, delta: 0 /* TODO */ } );

			renderer.render( scene, camera );

		};

		this.dispose = function () {

			renderer.dispose();

			camera = undefined;
			scene = undefined;

		};

		//

		function onKeyDown( event ) {

			dispatch( events.keydown, event );

		}

		function onKeyUp( event ) {

			dispatch( events.keyup, event );

		}

		function onPointerDown( event ) {

			dispatch( events.pointerdown, event );

		}

		function onPointerUp( event ) {

			dispatch( events.pointerup, event );

		}

		function onPointerMove( event ) {

			dispatch( events.pointermove, event );

		}

	}

};

var loader = new THREE.FileLoader();

loader.load("/js/brain.json", function (text) {
  var player = new APP.Player();
  player.load(JSON.parse(text));
  player.setSize(window.innerWidth, window.innerHeight);
  player.play();

  const hero = document.getElementById("hero");

  hero.after(player.dom);

  window.addEventListener("resize", function () {
    player.setSize(window.innerWidth, window.innerHeight);
  });
});

const SEPARATION = 100,
  AMOUNTX = 50,
  AMOUNTY = 50;

let container;
let camera, scene, renderer;

let particles,
  count = 0;

let windowHalfX = window.innerWidth / 2;
let windowHalfY = window.innerHeight / 2;

init();
animate();

function init() {
  container = document.createElement("div");
  const about = document.getElementsByClassName("about-1")[0];
  about.appendChild(container);

  camera = new THREE.PerspectiveCamera(
    75,
    window.innerWidth / window.innerHeight,
    500,
    10000
  );
  camera.position.z = 1000;
  camera.position.y = 250;

  scene = new THREE.Scene();
  scene.background = new THREE.Color(0x131313);

  //

  const numParticles = AMOUNTX * AMOUNTY;

  const positions = new Float32Array(numParticles * 3);
  const scales = new Float32Array(numParticles);

  let i = 0,
    j = 0;

  for (let ix = 0; ix < AMOUNTX; ix++) {
    for (let iy = 0; iy < AMOUNTY; iy++) {
      positions[i] = ix * SEPARATION - (AMOUNTX * SEPARATION) / 2; // x
      positions[i + 1] = 0; // y
      positions[i + 2] = iy * SEPARATION - (AMOUNTY * SEPARATION) / 2; // z

      scales[j] = 1;

      i += 3;
      j++;
    }
  }

  const geometry = new THREE.BufferGeometry();
  geometry.setAttribute("position", new THREE.BufferAttribute(positions, 3));
  geometry.setAttribute("scale", new THREE.BufferAttribute(scales, 1));

  const material = new THREE.ShaderMaterial({
    uniforms: {
      color: { value: new THREE.Color(0xffffff) },
    },
    vertexShader: document.getElementById("vertexshader").textContent,
    fragmentShader: document.getElementById("fragmentshader").textContent,
  });

  //

  particles = new THREE.Points(geometry, material);
  scene.add(particles);

  //

  renderer = new THREE.WebGLRenderer({ antialias: true });
  renderer.setPixelRatio(window.devicePixelRatio);
  renderer.setSize(window.innerWidth, window.innerHeight / 2);
  container.appendChild(renderer.domElement);

  container.style.touchAction = "none";

  //

  windowHalfX = window.innerWidth / 2;
  windowHalfY = window.innerHeight / 2;

  camera.aspect = window.innerWidth / window.innerHeight;
  camera.updateProjectionMatrix();

  renderer.setSize(window.innerWidth, window.innerHeight);

  window.addEventListener("resize", onWindowResize);
}

function onWindowResize() {
  windowHalfX = window.innerWidth / 2;
  windowHalfY = window.innerHeight / 2;

  camera.aspect = window.innerWidth / window.innerHeight;
  camera.updateProjectionMatrix();

  renderer.setSize(window.innerWidth, window.innerHeight);
}

//

function onPointerMove(event) {
  if (event.isPrimary === false) return;
}

//

function animate() {
  requestAnimationFrame(animate);

  render();
}

function render() {
  //camera.lookAt(scene.position);

  const positions = particles.geometry.attributes.position.array;
  const scales = particles.geometry.attributes.scale.array;

  let i = 0,
    j = 0;

  for (let ix = 0; ix < AMOUNTX; ix++) {
    for (let iy = 0; iy < AMOUNTY; iy++) {
      positions[i + 1] =
        Math.sin((ix + count) * 0.3) * 50 + Math.sin((iy + count) * 0.5) * 50;

      scales[j] =
        (Math.sin((ix + count) * 0.3) + 1) * 20 +
        (Math.sin((iy + count) * 0.5) + 1) * 20;

      i += 3;
      j++;
    }
  }

  particles.geometry.attributes.position.needsUpdate = true;
  particles.geometry.attributes.scale.needsUpdate = true;

  renderer.render(scene, camera);

  count += 0.1;
}

const nav = () => {
  const burger = document.querySelector(".burger");
  const nav = document.querySelector("nav ul");

  burger.addEventListener("click", () => {
    nav.classList.toggle("nav-active");
    burger.classList.toggle("toggle");
  });
};

nav();