import {
	TilesRenderer,
} from '../src/index.js';
import {
	Scene,
	DirectionalLight,
	AmbientLight,
	WebGLRenderer,
	PerspectiveCamera,
	Group,
	sRGBEncoding,
	Fog,
	FogExp2,
} from 'three';
import { FlyOrbitControls } from './FlyOrbitControls.js';
import * as dat from 'three/examples/jsm/libs/dat.gui.module.js';

let camera, controls, scene, renderer;
let groundTiles, skyTiles;

const params = {

	fog: true,

};

init();
render();

function init() {

	const fog = new FogExp2( 0xd8cec0, .0075, 250 );
	scene = new Scene();
	scene.fog = fog;

	// primary camera view
	renderer = new WebGLRenderer( { antialias: true } );
	renderer.setPixelRatio( window.devicePixelRatio );
	renderer.setSize( window.innerWidth, window.innerHeight );
	renderer.setClearColor( 0xd8cec0 );
	renderer.outputEncoding = sRGBEncoding;

	document.body.appendChild( renderer.domElement );
	renderer.domElement.tabIndex = 1;

	camera = new PerspectiveCamera( 60, window.innerWidth / window.innerHeight, 1, 4000 );
	camera.position.set( 20, 10, 20 );

	// controls
	controls = new FlyOrbitControls( camera, renderer.domElement );
	controls.screenSpacePanning = false;
	controls.minDistance = 1;
	controls.maxDistance = 2000;
	controls.baseSpeed = 0.1;
	controls.fastSpeed = 0.2;

	// lights
	const dirLight = new DirectionalLight( 0xffffff );
	dirLight.position.set( 1, 2, 3 );
	scene.add( dirLight );

	const ambLight = new AmbientLight( 0xffffff, 0.2 );
	scene.add( ambLight );

	const tilesParent = new Group();
	tilesParent.rotation.set( Math.PI / 2, 0, 0 );
	scene.add( tilesParent );

	groundTiles = new TilesRenderer( 'https://raw.githubusercontent.com/NASA-AMMOS/3DTilesSampleData/master/msl-dingo-gap/0528_0260184_to_s64o256_colorize/0528_0260184_to_s64o256_colorize/0528_0260184_to_s64o256_colorize_tileset.json' );
	groundTiles.fetchOptions.mode = 'cors';
	groundTiles.errorTarget = 15;

	skyTiles = new TilesRenderer( 'https://raw.githubusercontent.com/NASA-AMMOS/3DTilesSampleData/master/msl-dingo-gap/0528_0260184_to_s64o256_colorize/0528_0260184_to_s64o256_sky/0528_0260184_to_s64o256_sky_tileset.json' );
	skyTiles.fetchOptions.mode = 'cors';
	skyTiles.lruCache = groundTiles.lruCache;

	tilesParent.add( groundTiles.group, skyTiles.group );

	onWindowResize();
	window.addEventListener( 'resize', onWindowResize, false );

	const gui = new dat.GUI();
	gui.add( params, 'fog' ).onChange( v => {

		scene.fog = v ? fog : null;

	} );
	gui.open();

}

function onWindowResize() {

	camera.aspect = window.innerWidth / window.innerHeight;
	camera.updateProjectionMatrix();
	renderer.setSize( window.innerWidth, window.innerHeight );
	renderer.setPixelRatio( window.devicePixelRatio );

}

function render() {

	requestAnimationFrame( render );

	camera.updateMatrixWorld();

	groundTiles.setCamera( camera );
	groundTiles.setResolutionFromRenderer( camera, renderer );
	groundTiles.update();

	skyTiles.setCamera( camera );
	skyTiles.setResolutionFromRenderer( camera, renderer );
	skyTiles.update();

	renderer.render( scene, camera );

}