import { CSS2DRenderer, CSS2DObject } from '/examples/jsm/renderers/CSS2DRenderer.js';

var APP = {

	Player: function () {

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

		var css2DRenderer = createCSS2DRenderer()

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

		var vrButton = VRButton.createButton(renderer); // eslint-disable-line no-undef

		var events = {};

		var dom = document.createElement('div');
		dom.appendChild(renderer.domElement);
		dom.appendChild(css2DRenderer.domElement);
		this.dom = dom;
        var waters=[];

		this.width = 500;
		this.height = 500;
		function createCSS2DRenderer() {
			css2DRenderer = new CSS2DRenderer();
			css2DRenderer.setSize(window.innerWidth, window.innerHeight);
			css2DRenderer.domElement.style.position = 'absolute';
			css2DRenderer.domElement.style.top = '0px';//信息弹窗界面高度一半
			css2DRenderer.domElement.style.left = '0px';//信息弹窗界面宽度一半
			css2DRenderer.domElement.style.pointerEvents = 'none';

			return css2DRenderer;
		}
		function createCSSLabel(text, parent) {

			const labelDiv = document.createElement('div');
			labelDiv.className = 'label';
			labelDiv.name = "csslabeldiv"
			labelDiv.textContent = text;

			labelDiv.style.pointerEvents = 'none';//避免HTML标签遮挡三维场景的鼠标事件
			const moonLabel = new CSS2DObject(labelDiv);
			moonLabel.position.set(1, 2, 0);
			moonLabel.name = "datalabel"
			moonLabel.userData = { name: "datalable", id: "", url: "" }
			return moonLabel;

		}
		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.initLable();


		};

		this.setCamera = function (value) {

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

		};

		this.setScene = function (value) {

			scene = value;
			window.scene = scene

		};
        this.addWater=function(water){
			waters.push(water);
		}
		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();

			}

			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 render(time) {

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

			renderer.render(scene, camera);
			if (css2DRenderer != null) {

				css2DRenderer.render(scene, camera);
			}
			waters.forEach(water => {
				// 播放特效
				water.material.uniforms['time'].value += 1.0 / 60.0;
			});

		};


		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);
			render(time);
			prevTime = time;

		}

		this.play = function () {

			if (renderer.xr.enabled) dom.append(vrButton);

			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 () {

			if (renderer.xr.enabled) vrButton.remove();

			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.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);

		}

	}

};

export { APP };