import { scene, camera, light3, controls, renderer } from './common/scene2';
import { setEvents } from './common/setEvents';
import { convertToXYZ, getEventCenter, geodecoder } from './common/geoHelpers';
import { mapTexture } from './common/mapTexture';
import { getTween, memoize } from './common/utils';
import topojson from 'topojson';
import THREE from 'THREE';
import d3 from 'd3';
import fdage from 'fdage';

var root,rotate;


var getIndex = function(elem,index){
	index = index || 'index';
	return elem.getAttributeNode(index)&&elem.getAttributeNode(index).nodeValue;
}
var setIndex = function(elem,name,index){
	index = index || 'index';
	elem.setAttribute(index,name);
}
var getByIndex = function(elem,name,index){  
	var result;
	for(var i=0; i<elem.children.length; i++){
		 if(getIndex(elem.children[i],index)===name){
			 result = elem.children[i];
		 }
	}			 
	if(result) return result;
	else for(var i=0; i<elem.children.length; i++){
		result = result || getByIndex(elem.children[i],name,index);
	}
	return result;	
}

var body = d3.select('body').node();
var hint = d3.select("#hint").node()


d3.json('data/world2.json', function (err, data) {

  d3.select("#loading").transition().duration(500)
    .style("opacity", 0).remove();

  var currentCountry,currentChosed,currentChName, overlay, chosedOverlay;
  var pointDown = 0;//鼠标按下为true,抬起为false
  var draged = 0; //是否才拖拽过
  
  var segments = 155; // number of vertices. Higher = better mouse accuracy
  var isMobile = /Android|iPhone|iPod|iPad|Windows Phone|IEMobile|BlackBerry|webOS/.test(navigator.userAgent);
  var regionObj;
  
  
  // Setup cache for country textures
  var countries = topojson.feature(data, data.objects.countries);
  var geo = geodecoder(countries.features);

  var textureCache = memoize(function (cntryID, color, lineWidth, lineColor) {
    var country = geo.find(cntryID);
	if(cntryID == "India"){
		/* for(var i=8; i<17; i++){
			country.geometry.coordinates[0][i][1] -=2;
		} */
 
		country.geometry.coordinates[0][8] = [92, 26.4]//92.07921,27.447946
		country.geometry.coordinates[0][9] = [92.27524,26.6]//[91.683,27.76053]
		country.geometry.coordinates[0][10] = [92.47524,26.6]//[92.47524,27.8821024]
		country.geometry.coordinates[0][11] = [93.41134113,26.628851]//[93.41134113,28.628851]
		country.geometry.coordinates[0][12] = [94.5634563,27.27140242]//[94.5634563,29.27140242]
		country.geometry.coordinates[0][13] = [95.39153,27.0282749]//[95.39153,29.0282749]
		country.geometry.coordinates[0][14] = [96.111611,27.445064]//[96.111611,29.445064]
		country.geometry.coordinates[0][15] = [96.579657,27.4]//[96.579657,28.819879933]
		country.geometry.coordinates[0][16] = [96.21962,27.903089]//[96.21962,28.403089]
		country.geometry.coordinates[0][17] = [96.3,27]
		
	}
    return mapTexture(country, color, lineWidth, lineColor);
  });
  window.mapTexture = mapTexture;
  // Base globe with blue "water"
  /* let blueMaterial = new THREE.MeshPhongMaterial({color: '#0889d5', transparent: true});  //2B3B59
  let sphere = new THREE.SphereGeometry(400, segments, segments);
  let baseGlobe = new THREE.Mesh(sphere, blueMaterial);
  baseGlobe.rotation.y = Math.PI;
  baseGlobe.addEventListener('click', onGlobeClick);
  baseGlobe.addEventListener('mousemove', onGlobeMousemove); */
  //baseGlobe.addEventListener('mousemove', onGlobeMousemove);

  var texture2DLoader = new THREE.TextureLoader();
  var earthMap, alphaGrayMap;
  earthMap=texture2DLoader.load("data/newEarth4.jpg");//newEarth.png
 
  let mapMat0  = new THREE.MeshPhongMaterial({map: earthMap, lights: true, transparent: true});
  mapMat0.specular = new THREE.Color(1,0.96,0.9);
  mapMat0.shininess = 1 ;
  //mapMat0.reflectivity = 10;
  
  var outerLayer = new THREE.Mesh(new THREE.SphereGeometry(400, segments, segments), mapMat0);
  outerLayer.rotation.y = Math.PI;
 
  
 
  
   //add base map layer with all countries
  /* let worldTexture = mapTexture(countries, '#647089');
  let mapMaterial  = new THREE.MeshPhongMaterial({map: worldTexture,transparent: true});
  var baseMap = new THREE.Mesh(new THREE.SphereGeometry(401, segments, segments), mapMaterial);
  baseMap.rotation.y = Math.PI; 
  mapMaterial.shininess = 1; */
  // create a container node and add the two meshes
  root = new THREE.Object3D();
  root.scale.set(1.5, 1.5, 1.5);
  //root.add(baseGlobe);
  //root.add(baseMap);
  root.add(outerLayer);
 
  scene.add(root);

  
 
  
  
  
  
  var bind = function(elem, event, func, bool) {
	bool = bool || false;
	if (elem.addEventListener)
		elem.addEventListener(event, func, bool);
	else if (elem.attachEvent)
		elem.attachEvent('on' + event, func);
  }
  var unbind = function(elem, event, func, bool) {
	bool = bool || false;
	if (elem.removeEventListener)
		elem.removeEventListener(event, func, bool);
	else if (elem.detachEvent)
		elem.detachEvent('on' + event, func);

  }
  
  var canvas = d3.select("#canvas").node();
  //地球滑动绑定：
  window.lastMouse = {};
  bind(canvas,"mousedown",function(event){
	  window.lastMouse.x = event.offsetX;
	  window.lastMouse.y = event.offsetY;
  })
  
  //地球初始转动绑定：
  rotate = true;
  var endRotate = function(){
	  rotate = false;
	  unbind(canvas,"mousedown",endRotate);
  }
  bind(canvas,"mousedown",endRotate);
  
  setEvents(camera,canvas, [outerLayer], 'click');
  setEvents(camera,canvas, [outerLayer], 'mousemove', 10);

  
  function rePos(o) { //重新定位
     
		var introOverlay = introduce.parentElement;
	 
		if(layer<2){
			 
			var ratio = 320/365;//横高比
			var h = window.innerHeight;
			var w = h * ratio;
			camera.aspect = w/h;
			camera.updateProjectionMatrix();
			renderer.setSize(w, h);
			introOverlay.style.left = w + "px";
		}else{
			introOverlay.style.left = "";
		}  
		/* if(layer == 2){//intro要往左边来点
			
		} */
   }
   
   
	var canvasToImg = function(canvas){
		var type = 'png';
		var imgData = canvas.toDataURL(type);
		return imgData;
	}



	/* var artifactDiv = d3.select("#introduce").select("#artifact").node();
	for(var i=0; i<10; i++){
		var item = document.createElement('div');
		addClass(item,"item");
		artifactDiv.appendChild(item);
		
	} */
	
	
	
	d3.json('data/worldInfo2.json', function (err, introData) {//和info跳转有关
	   
	   outerLayer.addEventListener('click', onGlobeClick);
	   outerLayer.addEventListener('mousemove', onGlobeMousemove);
	
		//跳转绑定：
		var i = d3.select("#introduce");
		var introduce = i.node();
		var artifact = i.select("#artifact").node();
		var introTitle = i.select(".introTitle").node();
		var introText = i.select(".introText").node();
		var backBtn = i.select("#back").node();
		var introBanner = i.select("#introBanner").node();
		var music = i.select("#music").node();
		
		
		bind(backBtn,"click",function(){//从第二层返回地球层
			layer = 1;
			removeClass(introduce,"layer2");
			//removeClass(introduce,"false3d");
			showIntroWithBannerAnima({animate:true});
			artifact.style.display = "";
			canvas.style.display = "";
			backBtn.style.display = "none";
			music.innerHTML = "";
			music.style.display = "none";
			regionObj = introData.region[currentChosed];
			introTitle.innerHTML = currentChName;
			introText.innerHTML = regionObj.regionIntro; 
			rePos(); 
			 
			var modelArea = d3.select("#modelArea").node(); 
			var imageArea = d3.select("#imageArea").node();
			if(modelArea){
				modelArea.style.display = "none";
				//if(isMobile){
					modelArea.children[0].src = "about:blank";//如果是手机就关闭释放内存
					modelArea.parentElement.removeChild(modelArea);
					modelArea = null;
				//}
				
			}
			if(imageArea){
				imageArea.style.display = "none";
			}
			
		})
		
		function showArtifactList(){ 
			var len  = regionObj.artifact.length; 
			for(var i=0; i<len; i++){
				 
				var item = document.createElement('div');
				var inner = document.createElement('div');
				addClass(item,"item");
				artifact.appendChild(item);
				item.appendChild(inner);
				setIndex(item,i);
				bind(item,"click",clickItem)//绑定点击事件
				var itemObj = regionObj.artifact[i];
				//if(itemObj.type === "image"){
					item.children[0].style['background-image'] = "url(data/display/600/"+itemObj.name+".jpg)";
				//}
			 
			}
			 
		}	
		function clickItem(){//点击列表
			layer = 2;
			hint.style.display = "none";
			addClass(introduce,"layer2");
			artifact.style.display = "none";
			backBtn.style.display = "block";
			canvas.style.display = "none"; 
			//getByIndex(menu,"artifactIntro").innerText = itemObj.introduce;
			rePos()
			showIntroWithBannerAnima({animate:true})
			var itemObj = regionObj.artifact[getIndex(this)];
			introTitle.innerHTML = itemObj.title || "";
			introText.innerHTML = itemObj.intro || "";
			if(itemObj.music){
				music.innerHTML += '<label>音频</label>';
				for(var i in itemObj.music){//elem.setAttribute('index',name); autoplay="autoplay" 
					music.innerHTML += ('<audio loop="loop" controls="true"><source src="data/music/'+itemObj.music[i]+'" type="audio/mp3"></audio>');
				}
				music.style.display = "";
			}
			 
			if(itemObj.type === "true3d" || itemObj.type === "false3d" ){
				//(itemObj.type === "false3d")&& addClass(introduce,"false3d");
				var modelArea = d3.select("#modelArea").node();
				if(!modelArea){
					modelArea = document.createElement("div");
					addClass(modelArea,"canvasArea");
					modelArea.id = "modelArea";
					body.appendChild(modelArea);
				}else{
					if(getIndex(modelArea)!==itemObj.name){//虽已有，但展示的是别的模型，要删除重新创建
						if(modelArea.children&&modelArea.children[0].src) modelArea.children[0].src = "about:blank";
						modelArea.parentElement.removeChild(modelArea);
						modelArea = document.createElement("div");
						addClass(modelArea,"canvasArea");
						modelArea.id = "modelArea";
						body.appendChild(modelArea);
					}
					modelArea.style.display = "";
				}
				if(getIndex(modelArea)!==itemObj.name){
					//fdage.embed( "data/ture3d/model/"+itemObj.name+".4dage", { root:modelArea, backgroundColor:[238/255,238/255,238/255],ifPlain:true, width: 800, height: 600, autoStart: true, fullFrame: true, pagePreset: false } );
					var page = document.createElement("iframe"); 
					page.src = "data/"+itemObj.type+"/"+itemObj.name+".html"+(itemObj.htmlTail?itemObj.htmlTail:"");
					modelArea.appendChild(page);
					setIndex(modelArea,itemObj.name);
					
				}
				
			}else{
				var imageArea = d3.select("#imageArea").node();
				if(!imageArea){
					imageArea = document.createElement("div");
					addClass(imageArea,"canvasArea");
					imageArea.id = "imageArea";
					body.appendChild(imageArea);
					var inner = document.createElement("div");
					imageArea.appendChild(inner);
					inner.style.width = "100%";
					inner.style.height = "94%";
					inner.style['margin-top'] = "2%";
				}else{
					var inner = imageArea.children[0];
					imageArea.style.display = "";
				}
				inner.style["background-image"] = "url(data/display/2048/"+itemObj.name+".jpg"+")";
			}
			
		}
		
		
		
		 function showIntroWithBannerAnima(o){
			
			if(o.animateOrnot && introduce.style.display == "none"){//如果之前introduce消失，则要有动画，如果不小时，就无动画  
				 
				introduce.style.display = "";
				removeClass(introBanner,"show");
				setTimeout(function(){
					addClass(introBanner,"show");
				},100)
				 
			}else if(o.show){
				introduce.style.display = "";
			}else if(o.hide){
				introduce.style.display = "none";
				removeClass(introBanner,"show");
			} 
			if(o.animate){ 
				removeClass(introBanner,"show");
				setTimeout(function(){
					addClass(introBanner,"show");
				},100)
			} 
			
			 
		 }  

   
		
		
		function onGlobeMousemove(event,originEvent,_this) {  //为什么mousedown的时候会立即触发mousemove？
			if(window.lastMouse.x){
				hint.style.display = "none"
				return;
			}
			var map, material;

			// Get pointc, convert to latitude/longitude
			var latlng = getEventCenter.call(this||_this, event, 400);
			
			// Look for country at that latitude/longitude
			var country = geo.search(latlng[0], latlng[1]);
			if(country && _this && country.code !== currentChosed){//点击的区域  _this表明是由click的触发的
				 
				currentChosed = country.code;
				currentChName = country.chName;
				var imgName;
				switch(currentChosed){
					case "Germany":
						imgName = "Austria";	break;  //共用一张
					case "Liang Yi":
					case "Yunnan Yi":
						imgName = "Yi";	break;
					case "England":
					case "United Kingdom":
					case "Belarus":
						imgName = "flower";	break;
					case "Indonesia":
						imgName = "Bali";	break;
					default:
						imgName = currentChosed;
				}
				 
				introBanner.style["background-image"] = 'url("data/bannerImg/'+imgName+'.png")';
				//出现该地区的介绍和器物列表
				regionObj = introData.region[currentChosed];
				layer = 1;
				introTitle.innerHTML = currentChName;
				introText.innerHTML = "";
				artifact.innerHTML = ""; 
				if(regionObj){
					introText.innerHTML = regionObj.regionIntro; 
					showArtifactList();	
				}
				map = textureCache(country.code, 'rgba(180,36,1,1)');	
				material = new THREE.MeshPhongMaterial({map: map,opacity:.5, transparent: true});
				material.shininess = 1 ;
				if (!chosedOverlay) {
					chosedOverlay = new THREE.Mesh(new THREE.SphereGeometry(405, 30, 30), material);
					chosedOverlay.rotation.y = Math.PI;
					root.add(chosedOverlay);
				}else{
					chosedOverlay.material = material;
				}
			}/* else if(country == null && _this){
				 introduce.style.display = "none";
				 BannerAnima(false);
			}else if(country&& _this){
				 introduce.style.display = "";
				 BannerAnima(true)
				 
			} */
			if(!isMobile && country !== null){
				hint.style.display = "block";
				if(originEvent){
					hint.innerHTML = country.chName;
					hint.style.left = Math.min(originEvent.clientX + 10, window.innerWidth - hint.clientWidth)+ "px";
					hint.style.top = Math.min(originEvent.clientY + 10, window.innerHeight - hint.clientHeight)+ "px";
				}

			}
			
			if (!isMobile && country !== null && country.code !== currentCountry) {	//滑动到的区域
				currentCountry = country.code;
				map = textureCache(country.code, 'rgba(255,255,255,0.4)', '2', '#FFFFFF');
				//map = isMobile ? mapTexture(geo.find(country.code), '#FFF900') : textureCache(country.code, '#FFF900');
				material = new THREE.MeshPhongMaterial({map: map,transparent: true});
				material.shininess = 1 ;
			  if (!overlay) {
				overlay = new THREE.Mesh(new THREE.SphereGeometry(405, 30, 30), material);
				overlay.rotation.y = Math.PI;
				root.add(overlay);
			  } else {
				
				overlay.material = material;
			  }
			}else if(country == null){
				hint.style.display = "none";

			}
			
			
			if(country == null && _this){
				 showIntroWithBannerAnima({hide:true})
			}else if(country&& _this){
			showIntroWithBannerAnima({show:true,animateOrnot:true})
				 
			} 
			
			
		}
		function onGlobeClick(event,originEvent) {//mouseup  在canvas上mouseup不一定会执行这个
			
			if(lastMouse.x){
				var x = originEvent.offsetX;
				var y = originEvent.offsetY;
				if((Math.abs(window.lastMouse.x - x)+Math.abs(window.lastMouse.y - y))>10){
					window.lastMouse.x = null;
					window.lastMouse.y = null;
					return;
				}
			}
			window.lastMouse.x = null;
			window.lastMouse.y = null;
			
		   
			// Get pointc, convert to latitude/longitude
			var latlng = getEventCenter.call(this, event,400);//radius = 150
			latlng[1]+=(root.rotation.y*180/Math.PI   -15);  //因为一开始地球在旋转，所以要加上这个offset。另外地球左移后观察的中心点右移，所以也要改。
			// Get new camera position
			var temp = new THREE.Mesh();
			temp.position.copy(convertToXYZ(latlng, 1000));
			temp.lookAt(root.position);
			temp.rotateY(Math.PI);

			for (let key in temp.rotation) {
			  if (temp.rotation[key] - camera.rotation[key] > Math.PI) {
				temp.rotation[key] -= Math.PI * 2;
			  } else if (camera.rotation[key] - temp.rotation[key] > Math.PI) {
				temp.rotation[key] += Math.PI * 2;
			  }
			}

			var tweenPos = getTween.call(camera, 'position', temp.position);
			d3.timer(tweenPos);

			var tweenRot = getTween.call(camera, 'rotation', temp.rotation);
			d3.timer(tweenRot);
			
		 
		 
			 onGlobeMousemove(event,null,this);
			
		}
	});	

});


function animate() {
	controls.update();
	light3.position.set(camera.position.x,camera.position.y,camera.position.z);
	light3.position.applyAxisAngle(new THREE.Vector3(0,1,0),0.9)
	if(root && rotate)root.rotation.y+=0.002;
	requestAnimationFrame(animate);
	renderer.render(scene, camera);
}
animate();


window.cc = function(lon,lat){
	var scale = [0.03600360036003601,0.017366249624962495];
	var translate = [-180,-90];	
	return [parseInt((lon-translate[0])/scale[0]), parseInt((lat-translate[1])/scale[1])];
}
window.vv = function(x,y){
	var scale = [0.03600360036003601,0.017366249624962495];
	var translate = [-180,-90];	
	return [x*scale[0]+translate[0], y*scale[1]+translate[1]];
}