#{extends 'main.html' /}
#{set title:messages.get('AAEvidenceSiftingModel.userdesktops.show.title') /}

#{set 'moreStyles'}
        <link rel="stylesheet" href="/aat/public/viewer/css/viewer_form.css">
#{/set}
#{set 'moreScripts'}
	<script type="text/javascript" src="@{'/public/viewer/js/lib/jquery-ui-1.8.23-min.js'}" charset="${_response_encoding}"></script>
	<script type="text/javascript" src="@{'/public/viewer/js/lib/jquery.ui.touch-punch.min.js'}" charset="${_response_encoding}"></script>
	<script type="text/javascript" src="@{'/public/viewer/js/lib/jsBezier-0.4-min.js'}" charset="${_response_encoding}"></script>
	<script type="text/javascript" src="@{'/public/viewer/js/1.3.15/jsPlumb-util-1.3.15-RC1.js'}" charset="${_response_encoding}"></script>
	<script type="text/javascript" src="@{'/public/viewer/js/1.3.15/jsPlumb-dom-adapter-1.3.15-RC1.js'}" charset="${_response_encoding}"></script>
	<script type="text/javascript" src="@{'/public/viewer/js/1.3.15/jsPlumb-1.3.15-RC1.js'}" charset="${_response_encoding}"></script>
	<script type="text/javascript" src="@{'/public/viewer/js/1.3.15/jsPlumb-defaults-1.3.15-RC1.js'}" charset="${_response_encoding}"></script>
	<script type="text/javascript" src="@{'/public/viewer/js/1.3.15/jsPlumb-renderers-svg-1.3.15-RC1.js'}" charset="${_response_encoding}"></script>
	<script type="text/javascript" src="@{'/public/viewer/js/1.3.15/jsPlumb-renderers-canvas-1.3.15-RC1.js'}" charset="${_response_encoding}"></script>
	<script type="text/javascript" src="@{'/public/viewer/js/1.3.15/jsPlumb-renderers-vml-1.3.15-RC1.js'}" charset="${_response_encoding}"></script>
	<script type="text/javascript" src="@{'/public/viewer/js/1.3.15/jquery.jsPlumb-1.3.15-RC1.js'}" charset="${_response_encoding}"></script>
	<script type="text/javascript" src="@{'/public/viewer/js/1.3.15/jquery.jsPlumb-1.3.15-all-min.js'}" charset="${_response_encoding}"></script>
#{/set}

<div id="page">
    <div class="title">
	&{'AAEvidenceSiftingModel.userdesktops.show.title'}&nbsp;[ ${desktop.project.name} ]
    </div>
    <ul >
	<li>&gt; <a href="@{AAEvidenceSiftingModel.UserHomes.index()}">&{'navigation.back'}</a></li>
	<li>&gt; <a href="@{AAEvidenceSiftingModel.Projects.show(desktop.id)}">&{'AAEvidenceSiftingModel.projects.show.title'}</a></li>
    </ul>
	<script type="text/javascript">var _desktopid = ${desktop.id};function desktopid(){return _desktopid;}</script>

<div id="traverseDisplay" style='position:fixed; width:250px; height:250px; border:solid 
1px; border-radius:5px; opacity:1; z-index:10; visibility:visible;'>
    <div style='position:absolute; left:0; top:0; width:100%; height:100%; background:black; opacity:0.7;'></div>
    <div id="closeTraverseDisplay" style='position:absolute; right:5px; top:-3px; z-index:10; color:white;' onclick="$('#traverseDisplay').css('visibility','hidden');" onmouseover="$('#closeTraverseDisplay').css('color','yellow');" onmouseout="$('#closeTraverseDisplay').css('color','white')" >CLOSE</div>
    <div style='position:absolute; width:90%; height:90%;'>
	<div style='position:absolute; left:5%; top:5%; width:100%; height:100%; background:white;'>
	    <div id="traverseDisplayTitle" style='position:absolute; left:10px; top:5px; font-size:24px; width:100%; text-align:left;'>
    Traverse 
	    </div>
	    <div style='position:absolute; top:30px; width:100%; margin-left:10px;'> Direction:
		<label style='position:relative;' ><input id="direction_in" type='radio' value='in' name='direction' checked value='in' checked />IN</label>
		<label style='position:relative;'><input id="direction_out" type='radio' value='out' name='direction' value='out'/>OUT</label>   
		</form>
	    </div>
    	    <div id="traverseDisplayBody" style='position:absolute; left:20px; top:50px;'>
    Please click any node.
	    </div>
	</div>
    </div>
    <span class='button' style='position:absolute; width:100px; left:75px; bottom:5px; opacity:1;' onclick='traverseAction();'>traverse</span>
</div>

<div id="miniDisplay" style='position:fixed; width:250px; height:250px; border:solid 1px; border-radius:5px; opacity:1; z-index:10; visibility:visible;'>
    <div style='position:absolute; left:0; top:0; width:100%; height:100%; background:black; opacity:0.5;'></div>
    <div id="closeMiniDisplay" style='position:absolute; right:5px; top:-3px; z-index:10; color:white;' onclick="$('#miniDisplay').css('visibility','hidden');" onmouseover="$('#closeMiniDisplay').css('color','yellow');" onmouseout="$('#closeMiniDisplay').css('color','white')" >CLOSE</div>
    <div style='position:absolute; width:90%; height:90%;'>
	<div style='position:absolute; left:5%; top:5%; width:100%; height:100%; background:white;'>
	    <div id="miniDisplayTitle" style='position:absolute; left:10px; top:5px; font-size:24px; width:100%; text-align:left;'>
	    </div>
	    <div id="miniDisplayBody" style='position:absolute; left:20px; top:40px;'>
		Please click any node.
	    </div>
	</div>
    </div>
    <nobr style='position:absolute; width:100%; bottom:5px;'>
    <span class='button' id="acceptButton" style='position:absolute; width:50px; left:5px; bottom:5px; opacity:1;' value='accept' onclick="statePost($('#acceptButton'));">accept</span>
    <span class='button' id="rejectButton" style='position:absolute; width:50px; left:65px; bottom:5px; opacity:1; ' value='rejecte' onclick="statePost($('#rejectButton'));">reject</span>
    <span class='button' id="retractButton" style='position:absolute; width:50px; left:125px; bottom:5px; opacity:1; ' value='retract' onclick="statePost($('#retractButton'));">retract</span>
    </nobr>
</div>



<div class="graphMainCss" style="position:absolute; left:0; bottom:0; width:100%; height:75%;" id='graphMain'>
    <div  style="position:absolute; width:0; height:0;left:0;" id='graphRoot'>
    </div>
</div>

<div id='edgeInfoDisplay' class='edgeInfoTable' style='left:0; top:0; z-index:20;'>
    <div id="closeEdgeInfoDisplay" style='position:absolute; right:5px; top:-15px; z-index:10; color:white;' onclick="$('#edgeInfoDisplay').css('visibility','hidden');" onmouseover="$('#closeEdgeInfoDisplay').css('color','yellow');" onmouseout="$('#closeEdgeInfoDisplay').css('color','white')" >CLOSE</div>  <div id='edgeInfoTitle' style='position:absolute; margin-top:2px; padding-left:5px; font-size:20px; width:100%; text-align:left;'>Traverse</div>
    <div id='edgeInfoSample' style='position:absolute; padding-left:10px; font-size:15px; padding-top:25px;'>kind : num : direction</div>
    <div id='edgeInfoBody' style='position:absolute; padding-top:40px; '>
	<div class='edgeInfoDiv' style='visibility:hidden'></div>
    </div>
</div>


<script type="text/javascript">
var CURRENT_DATA = {};
 
if(!Array.prototype.filter){
    Array.prototype.filter=function(func){
	var arr=[];
	for(var i=0;i<this.length;i++)if(func(this[i]))arr.push(this[i]);
	return arr;
    }
}

var arrowConnector = {
    connector:"StateMachine",
    //    paintStyle:{lineWidth:3,strokeStyle:"#056"},
    paintStyle:{lineWidth:2,strokeStyle:"#aaf"},
    hoverPaintStyle:{strokeStyle:"#dbe300"},
    endpoint:"Blank",
    anchor:"Continuous",
    overlays:[ ["PlainArrow", {location:1, width:20, length:12} ]]
};
var arrowBothConnector = {
    connector:"StateMachine",
    paintStyle:{lineWidth:2,strokeStyle:"#aaf"},
    hoverPaintStyle:{strokeStyle:"#dbe300"},
    endpoint:"Blank",
};
function GraphData() {
    var graphData = {};
    graphData.nodes = {};
    graphData.edges = {};
    return graphData;
}
var DragHandler = {
    _oElem : null,
    _id : null,
    attach : function(oElem) {
	oElem.onmousedown = DragHandler._dragBegin;
	return oElem;
    },
    _dragBegin : function(e) {
	var oElem = DragHandler._oElem = this;
	if (isNaN(parseInt(oElem.style.left))) { oElem.style.left = '0px'; }
	if (isNaN(parseInt(oElem.style.top))) { oElem.style.top = '0px'; }
	var x = parseInt(oElem.style.left);
	var y = parseInt(oElem.style.top);
	e = e ? e : window.event;
	oElem.mouseX = e.clientX;
	oElem.mouseY = e.clientY;
	document.onmousemove = DragHandler._drag;
 	document.onmouseup = DragHandler._dragEnd;
	return false;
    },
    _drag : function(e) {
	var oElem = DragHandler._oElem;
	var x = parseInt(oElem.style.left);
	var y = parseInt(oElem.style.top);
	e = e ? e : window.event;
	var nextX =  x + (e.clientX - oElem.mouseX);
	var nextY =  y + (e.clientY - oElem.mouseY);
	if (nextX < 0) nextX = 0;
	oElem.style.left = nextX + 'px';
	oElem.style.top = nextY  + 'px';
	oElem.mouseX = e.clientX;
	oElem.mouseY = e.clientY;
	if (oElem.nodeId) {
	    var id = oElem.nodeId;
	    var node = GRAPH_DATA.nodes[id];
	    node.position.x = nextX;
	    node.position.y = nextY;	    
	}
	return false;
     },
    _dragEnd : function() {
	var oElem = DragHandler._oElem;
	document.onmousemove = null;
	document.onmouseup = null;
	DragHandler._oElem = null;
	if (oElem.nodeId) {
	    var x = parseInt(oElem.style.left);
	    var y = parseInt(oElem.style.top);
	    var node = GRAPH_DATA.nodes[oElem.nodeId];
	    if (x < 0) x = 0;
	    node.position.x = x;
	    node.position.y = y;
	    nodePositionPost(node);
	}
    }
};

function writeMiniDisplay(title,str) {
    $('#miniDisplayBody')[0].innerHTML = str;
    if(title) {
	$('#miniDisplayTitle')[0].innerHTML = title;
    }
}

function writeJSONDataToMiniDisplay(jsonObj) {
    var str = "";
    for (var key in jsonObj.property) {
	if (key != 'edgeInfo' ) {
	    str = str + key + ": "+ jsonObj.property[key] + "<br>";
	}
    }
    writeMiniDisplay(jsonObj.property.title, str);
}

function getTraverseDivTemplate(kind, inNum, outNum) {
    return "<div><label id='traverseLabel'><input type='checkbox' checked value='"+kind+"'/>"+kind+"</label><br>in:"+inNum+" out:"+outNum+"</div>";
}

function createTraverseView(info) {
    var viewHtml = "";
    for (var kind in info) {
	var data = info[kind];
	var inNum = 0;
	var outNum = 0;
	if (data['in']) {
	    inNum = data['in'];
	}
	if (data['out']) {
	    outNum = data['out'];
	}
	viewHtml = viewHtml + getTraverseDivTemplate(kind, inNum, outNum);
    }
    return viewHtml;
}

function createEdgeInfoView(node) {
    var id = node.property.id;
    var edgeInfo = node.property.edgeInfo;
    var str = "";
    var info = {};
    for (var i=0; i<edgeInfo.length; i++) {
	var kind = edgeInfo[i].kind;
	var dir = edgeInfo[i].direction;
	var num = edgeInfo[i].num;
	if (!info[kind]) info[kind] = {};
	info[kind][dir] = num;
    }
    var viewHTML = createTraverseView(info);
    edgeInfo.viewHtml = viewHTML;
    $('#traverseDisplayBody')[0].innerHTML = viewHTML;
}


/* Twice the top is the same length as the top + buttom */
var EDGEINFO_MARGIN = parseInt($('.edgeInfoDiv').css('margin-top').split('px')[0])*2 + 
	parseInt($('#edgeInfoSample').css('padding-top').split('px')[0])*2 +
	parseInt($('#edgeInfoSample').css('font-size').split('px')[0]);
var BASE_EDGEINFO_HEIGHT = parseInt($('#edgeInfoDisplay').height());
function calcEdgeInfoTableHeight() {
    var edgeInfoDivs = $('.edgeInfoDiv');
    if (edgeInfoDivs.length <= 0) return 0;
    var childrenHeight = 0;
    for (var i=0; i<edgeInfoDivs.length; i++) {
	childrenHeight = childrenHeight + edgeInfoDivs[i].offsetHeight;
    }
    return (childrenHeight + EDGEINFO_MARGIN);
}

function updateEdgeInfoBodyHeight() {
    var table =  $('#edgeInfoDisplay');
    var height = calcEdgeInfoTableHeight();
    var borderSize = parseInt(table.css('border-left-width').split('px')[0]);
    if (height+borderSize < BASE_EDGEINFO_HEIGHT) height = BASE_EDGEINFO_HEIGHT;
    table.css('height', height + 'px');
}

function edgeInfoBodyClear() {
    $('#edgeInfoBody').children().remove();
}

function addEdgeInfoDiv(edgeInfoDiv) {
    var fc =  $('#edgeInfoBody')[0].firstChild;
    if (fc) {
	$('#edgeInfoBody').append(edgeInfoDiv.view[0], fc)
    } else {
	$('#edgeInfobody').append(edgeInfoDiv.view);
    }
}

function createEdgeInfoDiv(node,edgeInfo) {
    function createEdgeInfoinnerHTML(edgeInfo) {
	return edgeInfo.kind + " : " + edgeInfo.num + ": " + edgeInfo.direction;
    }
    var edgeInfoDiv = $('<div class="edgeInfoDiv"/>')
    edgeInfoDiv[0].innerHTML = createEdgeInfoinnerHTML(edgeInfo);
    edgeInfoDiv.click(function(){ getEvidence(node.property.id, edgeInfo.kind, edgeInfo.direction, edgeInfo.id); });   
    return edgeInfoDiv;
}

function updateEdgeInfoDisplay() {
    var nodeId = CURRENT_DATA.id;
    var node = GRAPH_DATA.nodes[nodeId];
    showEdgeInfoDisplay(node);
}

function showEdgeInfoDisplay(node) {
    edgeInfoBodyClear();
    var edgeInfoArray = node.property.edgeInfo;
    for (var i=0; i<edgeInfoArray.length; i++) {
	var edgeInfo = edgeInfoArray[i];
	if (!edgeInfo.view) {
	    edgeInfo.view = createEdgeInfoDiv(node,edgeInfo);
	}
	addEdgeInfoDiv(edgeInfo);
    }
    updateEdgeInfoBodyHeight();
}

function init() {
    jsPlumb.importDefaults({
	Connector : [ "Straight", { curviness:50 } ],
	PaintStyle : { strokeStyle:"gray", lineWidth:2 },
	EndpointStyle : {},
	Anchors: ["BottomCenter","TopCenter"],
    });
    var rootDiv = $('#graphMain');
    var rootLeft = rootDiv.offset().left;
    var rootTop = rootDiv.offset().top;
    $('#traverseDisplay').css( {
	left: rootLeft + 'px',
	top: rootTop + 'px'
    });
    $('#edgeInfoDisplay').css({
	right: 0 + 'px',
	top: rootTop + 'px'
    });
    var heightStr = $('#traverseDisplay').css('height').split('px')[0];
    var height = parseInt(heightStr);
    $('#miniDisplay').css( {
	left: rootLeft + 'px',
	top: rootTop + height + 50 + 'px'
    });
}

function showMiniDisplay(node) {
    $("#miniDisplay").css("visibility", "visible");
    writeJSONDataToMiniDisplay(node);
}

function showTraverseDisplay(node) {
    CURRENT_DATA.nodeId = node.property.id;
    if (!node.property.edgeInfo) { console.log("not found node.edgeInfo "); return; }
    if (!node.property.edgeInfo.viewHtml) {
	createEdgeInfoView(node);
    }

    $('#traverseDisplayBody')[0].innerHTML = node.property.edgeInfo.viewHtml;	
    $("#traverseDisplay").css("visibility", "visible");
}

var nodeNum = 0;
var OFFSET = 300;
var miniD = $('#miniDisplay')[0].style;
var offsetLeft = parseInt(miniD.width.split('px')[0]);
var offsetTop = parseInt(miniD.height.split('px')[0]);
function calcNewNodePosition() {
    var position = {};
    position = {x: offsetLeft+OFFSET, y: nodeNum*OFFSET + offsetTop / 3};
    nodeNum++;
    return position;
}

/*
 *
 */
function clickNodeDiv(id) {
    var graphData = GRAPH_DATA;
    var node = graphData.nodes[id];
    var rels = {evidence:1,
		dependency:1,
		derived:1,
		version:1,
		agreement:1};
    showRelationNodes(graphData, node, rels);    
}

function addEdgeInfo(id, kind, direction) {
    var nodes = GRAPH_DATA.nodes;
    var edges = GRAPH_DATA.edges;
    
}

function showEdgesAndNodes(graphData,jsonData,kind) {
    var nodes = graphData.nodes;
    var jsonNodes = jsonData.nodes;
    for (var i=0; i<jsonNodes.length; i++) {
	var id = jsonNodes[i].id;
	updateNode(nodes[id]);
    }
    var edges = graphData.edges;
    var jsonEdges = jsonData.edges;
    for (var i=0; i<jsonEdges.length; i++) {
	var edge = edges[jsonEdges[i].id];
	edge.property.kind = kind;
	showEdge(graphData, edge);
    }
    showAllEdge(graphData);
}

function getEvidence(id, kind, direction, edgeInfoId) {
    $.ajax({
	url:"/aat/aaevidencesiftingmodel.userdesktops/get?desktopid="+desktopid() + "&id="+id+"&kind="+kind+"&direction="+direction+"&edgeinfoid="+edgeInfoId,
	success:function(o) {  parseJSONGraphData(GRAPH_DATA, o); recursiveCalcPosition(GRAPH_DATA, GRAPH_DATA.nodes[id]);  showEdgesAndNodes(GRAPH_DATA, o, kind);},
	type:"GET", cache:true,
	error:function(o) { console.log("getEvidence error : ", o); }
    });
}

function postToServer(parameter) {
    $.ajax({
	url:"/aat/aaevidencesiftingmodel.userdesktops/update?desktopid="+desktopid()+"&"+parameter,
	success:function(o) { },
	type:"POST", cache:true,
	error:function(o) { console.log("post error : ", o); }
    });
}

var stateObj = {
    accept:"Accepted",
    reject:"Rejected",
    retract:"Retract"
};

function statePost(buttonEle) {
    var id = CURRENT_DATA.nodeId;
    var state = buttonEle.html();
    var node = GRAPH_DATA.nodes[id];
    node.property.state = stateObj[state];
    postToServer("id="+id+"&state="+stateObj[state]);
    showMiniDisplay(node);
    updateNodeElement(node);
}

function nodePositionPost(node) {
    postToServer("id="+node.property.id+"&coordX="+node.position.x+"&coordY="+node.position.y);
}

function traverseAction() {
    var inDirChecked = $('#direction_in').is(':checked');
    var outDirChecked = $('#direction_out').is(':checked');
    var labelTags = $('[id=traverseLabel]');
    var kinds = [];
    for (var i=0;i<labelTags.length; i++ ) { 
	var inputTag = labelTags[i].children[0];
	if (inputTag.checked) {
	    kinds.push(inputTag.value);
	}
    }
    var id = CURRENT_DATA.nodeId;
    var edgeInfoArray = GRAPH_DATA.nodes[id].property.edgeInfo;
    var edgeInfos = {};
        for (var i=0; i<edgeInfoArray.length; i++) {
	var edgeInfo = edgeInfoArray[i];
	var kind = edgeInfo.kind;
	if (!edgeInfos[kind]) edgeInfos[kind] = {};
	edgeInfos[kind][edgeInfo.direction] = edgeInfo;
    }
    for (var i=0; i<kinds.length; i++) {
	var kind = kinds[i];
	var edgeInfo = edgeInfos[kind];
	if (inDirChecked && edgeInfo.in) getEvidence(id, kind, "in", edgeInfo.in.id);
	if (outDirChecked && edgeInfo.out ) getEvidence(id, kind, "out", edgeInfo.out.id);
    }

}

function createNodeDiv(node) {
    node.view = $("<div class='graphNode'/>");
    node.view.click(function(){ clickNodeDiv(node.property.id) });
    if(!node.position) {
	node.position = calcNewNodePosition();
    }
    var div = $("<div class='graphNodeContent' />")[0];
    div.id = node.property.id;
    div.innerHTML = node.property.title;
    node.view[0].appendChild(div);
    return node;
}

var StateColor = {
    Accepted:"#48f",
    Rejected:"#a66",
    Retracted:"#fff"
};

function updateNodeElement(node) {
    var created = false;
    if(!node.view) {
	created = true;
	createNodeDiv(node);
    }
    var div = node.view;
    div.hover(  
	function(){div.css("box-shadow","white 0 0 50px");  },
	function(){div.css("box-shadow","");}
    );
    node.view[0].nodeId = node.property.id;
    div.click(function(){showMiniDisplay(node); showTraverseDisplay(node); showEdgeInfoDisplay(node);});
    DragHandler.attach($(node.view)[0]);
    var kindBorder = {agree:"#66a", rejected:"#a66"};
    div.css("background", StateColor[node.property.state]||"white");
    div.css("border-color", kindBorder[node.property.state] ||"#58f");
    div.css({
	left: node.position.x + 'px',
	top: node.position.y + 'px'
    }); 
    var contentDiv = $(div[0].firstChild);
    contentDiv.css("background", StateColor[node.property.state]||"white");
    return created;    
}


function updateNode(node) {
    if(updateNodeElement(node)) {
	var fc = $('#graphRoot')[0].firstChild;
	if(fc) {
	    $('#graphRoot')[0].insertBefore(node.view[0], fc);
	} else {
	    $('#graphRoot').append(node.view);
	}
    }
    nodePositionPost(node);
}

var ViewParam = {
    offsetTop:100,
    offsetBottom:100,
    offsetLeft:100,
    offsetRight:100,
    nodeWidth:120,
    nodeHeight:60,
    intervalX:140,
    intervalY:120
};

function parseJSONGraphData(memory ,jsonObj) {
    var nodes = jsonObj.nodes;
    for (var i=0; i<nodes.length; i++) {
	var node = nodes[i];
	if (memory.nodes[node.id]) continue;
	memory.nodes[node.id] = {};
	memory.nodes[node.id].in = [];
	memory.nodes[node.id].out = [];
	memory.nodes[node.id].both = [];
	memory.nodes[node.id].property = node;
	if (node.coordX) {
	    memory.nodes[node.id].position = {};
	    memory.nodes[node.id].position.x = node.coordX;
	    memory.nodes[node.id].position.y = node.coordY;
	}
    }
    if (!jsonObj.edges) return memory; 
    var edges = jsonObj.edges;
    for (var i=0; i<edges.length; i++) {
	var edge = edges[i];
	var edgeId = edge.id;
	if (memory.edges[edgeId]) continue;
	memory.edges[edgeId] = {};
	memory.edges[edgeId].property = edge;
	memory.edges[edgeId].visible = false;
	memory.nodes[edge.from].out.push(edgeId);
	memory.nodes[edge.to].in.push(edgeId);
    }
    return memory;
}

function showEdge(graphData, edge) {
    function connectEdge(fromNode, toNode, kind) {
	var c;
	c = jsPlumb.connect({source:fromNode.view[0], target:toNode.view[0]}, arrowConnector);
	//	jsPlumb.select({source:fromNode.view[0]}).removeAllOverlays();
	c.setLabel({label:"<span style='color:#129; font-size:1.5em;'>"+kind+"</span>",cssStyle:""});
	return c;
    }
    if (edge.visible) return;
    var fromNode = graphData.nodes[edge.property.from];
    var toNode = graphData.nodes[edge.property.to];
    if (!fromNode.view && !toNode.view) return;
    var kind = edge.property.kind;
    connectEdge(fromNode, toNode, kind);
    edge.visible = true;
}

function createNodeFromEdge(graphData, edge, baseNode) {
    if(edge.visible) return;
    var fromNode = graphData.nodes[edge.property.from];
    if (!fromNode.view) {
	updateNode(fromNode);
    }
    var toNode = graphData.nodes[edge.property.to];
    if (!toNode.view) {
	updateNode(toNode);
    }
    showEdge(graphData, edge);
}

function getRelationEdgeIds(node) {
    var edgeIds = [];
    for (var i=0; i<node.in.length; i++) edgeIds.push(node.in[i]);
    for (var i=0; i<node.out.length; i++) edgeIds.push(node.out[i]);
    for (var i=0; i<node.both.length; i++) edgeIds.push(node.both[i]);
    return edgeIds;
}

function getRelationNodeIds(graphData, node) {
    var nodes = graphData.nodes;
    var edges = graphData.edges;
    var nodeIds = [];
    for (var i=0; i<node.in.length; i++) {
	var edgeId = node.in[i];
	nodeIds.push(edges[edgeId].property.from);
    }
    for (var i=0; i<node.out.length; i++) {
	var edgeId = node.out[i];
	nodeIds.push(edges[edgeId].property.to);
    }
    for (var i=0; i<node.both.length; i++) {
	var edgeId = node.both[i];
	var fromId = edges[edgeId].property.from;
	var toId = edges[edgeId].property.to;
	if (fromId == node.property.id) {
	    nodeIds.push(toId);
	} else {
	    nodeIds.push(fromId);
	}
    }
    return nodeIds;
}

/*
 * This function output all NODE that are related [node]
 */
function updateRelationNodes(graphData, node) {
    var id = node.property.id;
    var edges = graphData.edges;
    var edgeIds = getRelationEdgeIds(node);
    for (var i=0; i<edgeIds.length; i++ ) {
	createNodeFromEdge(graphData, edges[edgeIds[i]]);
    }
    jsPlumb.removeAllEndpoints();
    jsPlumb.draggable($('.graphNode'));
}

/* 
 * rels = {dependency:1, evidence:1}; 
 * showRelationNodes(graphData, node, rels);
 */
function showRelationNodes(graphData, node, rels) {
    var id = node.property.id;
    var edges = graphData.edges;
    var edgeIds = getRelationEdgeIds(node);
    for (var i=0; i<edgeIds.length; i++) {
	var edge = edges[edgeIds[i]];
	if (rels[edge.property.rel]) {
	    createNodeFromEdge(graphData, edges[edgeIds[i]]);	    
	}
    }
    jsPlumb.removeAllEndpoints();
    jsPlumb.draggable($('.graphNode'));
}

var BASE_THETA = -30;
var BASE_ANGLE = 180;
var BASE_DISTANCE = 180;
function calcChildNodePosition(parent, num) {
    var pX = parent.position.x;
    var pY = parent.position.y;
    var deg = BASE_ANGLE - num * BASE_THETA;
    var theta = deg * (Math.PI / 180);
    var cX = pX - (BASE_DISTANCE * Math.cos(theta));
    var cY = pY - (BASE_DISTANCE * Math.sin(theta));
    return {x:cX, y:cY};
}

function showAllEdge(graphData) {
    var edges = graphData.edges;
    for (var id in edges) {
	showEdge(graphData, edges[id]);
    }
    jsPlumb.removeAllEndpoints();
    jsPlumb.draggable($('.graphNode'));
}

var EDGE_LIST = {
    evidence:'evidence',
    dependency:'dependency',
    version:'version',
    derived:'derived',
    agreement:'agreement'
};

function recursiveCalcPosition(graphData, parentNode) {
    if (!parentNode.position) updateNode(parentNode);
    childNodeIds = getRelationNodeIds(graphData, parentNode);
    /* calcration of childNode position */
    var numCalcChild = 0;
    var childArray = {};
    for (var i=0; i<childNodeIds.length; i++) { 
	var id = childNodeIds[i];
	var childNode = graphData.nodes[id];
	if (childNode.position) {
	    numCalcChild++;
	}
    }
    for (var i=0; i<childNodeIds.length; i++) {
	var id = childNodeIds[i];
	var childNode = graphData.nodes[id];
	childArray[id] = childNode;
	if (!childNode.position) {
	    childNode.position = calcChildNodePosition(parentNode, numCalcChild);
	    numCalcChild++;
	    nodePositionPost(childNode);
	}
    }
    /* calcration of grandchildNode position  */
    for (var id in childArray) {
	var childNode = childArray[id];
	var grandChildIds = getRelationNodeIds(graphData, childNode);
	for (var i=0; i<grandChildIds.length; i++) {
	    var gId = grandChildIds[i];
	    var grandChild = graphData.nodes[gId];
	    if (!grandChild.position) {
 		recursiveCalcPosition(graphData, childNode);
	    }
	}
    }
}

var GRAPH_DATA = new GraphData();
function startUserDesktopUI() {
    function showFirstEvidenceList(graphData) {
	var nodes = graphData.nodes;
	for (var id in nodes) {
	    updateNode(nodes[id]);
	}
    }
    var gData = GRAPH_DATA;
    showFirstEvidenceList(gData);
    showAllEdge(gData);
}

function start() {
    init();
    $.ajax({
	url:"/aat/aaevidencesiftingmodel.userdesktops/get?desktopid="+desktopid(),
	success:function(o) { parseJSONGraphData(GRAPH_DATA, o); startUserDesktopUI();},
	type:"GET", cache:false,
	error:function(o) { console.log("first get error : ",o); }
    });
}

function addLoadEvent(func) {
    var oldonload = window.onload;
    if (typeof window.onload != 'function') {
	window.onload = func;
    } else {
	window.onload = function() {
	    if (oldonload) {
		oldonload();
	    }
	    func();
	}
    }
}

addLoadEvent(function() {
    beginScript();
});

function beginScript() {
    DragHandler.attach($('#miniDisplay')[0]);
    DragHandler.attach($('#traverseDisplay')[0]);
    DragHandler.attach($('#edgeInfoDisplay')[0]);
    start();
}

</script>