Ext.require(['*']);

Ext.onReady(function(){


    var randomNumber = Math.floor(Math.random()*10000001);

    Ext.QuickTips.init();

    var storeNodes = Ext.create('Ext.data.TreeStore', {
        proxy: {
            type: 'rest',
            url: '/didData.json',
	    extraParams: {
		browser: randomNumber
	    },
            reader: {
                type: 'json',
                root: 'children'
            }
        },
 	autoLoad: false,
        folderSort: true,
        sorters: [{
            property: 'text',
            direction: 'ASC'
        }],
        root: {
            text: 'TopNode',
            id: 'src',
            expanded: true
        },
        listeners: {
		load: function(myStore, node, records, successful, eopts) {
//			if(node.get('text') == "Nodes")
//		document.write("I am here "+node.text+" "+node.get('text'));
//				node.expand();
//			serviceInfo.update(node.get('text'));
//		var node = getNodeById('Nodes');
//			node.expand();
//			node.expandChildren();
//		        searchInfo.update("Expanding " +node.get('text'));
			setTimeout(expandRoot, 100);
		}
//		refresh: function(myStore, eopts) {
//		        searchInfo.update("Refreshing");
//			node.expand(1);
//			serviceInfo.update("refresh "+myStore.getName());
//		}
//		beforeexpand: function( node, eopts) {
//			this.load({
//		        params: {
//		            node: node.text
//			}
//			});
//		}
	}
     });

    function expandRoot()
    {
	var node;

    	node = storeNodes.getRootNode();
	node.expandChildren();
    }

    var storeServices = Ext.create('Ext.data.TreeStore', {
        proxy: {
            type: 'rest',
            url: '/didServices.json',
 	    extraParams: {
		browser: randomNumber
	    },
            reader: {
                type: 'json',
                root: 'children'
            }
        },
        folderSort: true,
        sorters: [{
            property: 'text',
            direction: 'ASC'
        }],
        root: {
            text: 'TopNode',
            id: 'src',
            expanded: true
        },
        listeners: {
		load: function(myStore, node, records, successful, eopts) {
			node.expand(1);
		}
        }	
    });

    function clearServices()
    {
	storeServices.load();
	serviceInfo.setVisible(1);
	commandInfoArea.setVisible(0);
	serviceInfo.update("");
    }
 
    var serviceInfo = Ext.create('Ext.Panel', {
        layout: 'fit',
        id: 'details-panel',
        title: 'Service Info',
        width: 580,
	flex: 3,
        autoScroll: true,
	border: false,
        html: ''
    });

    var commandInfo = Ext.create('Ext.Panel', {
        layout: 'fit',
//        id: 'details-panel',
//        title: 'Service Info',
        width: 580,
//	flex: 3,
//        autoScroll: true,
	border: false,
        margin: '5 5 5 5',
        html: 'Some Info'
    });


    var commandData = Ext.create('Ext.form.field.Text', {
        width: 400,
//        id: 'pattern',
	xtype: 'textfield',
	name: 'Search pattern',
	labelAlign: 'top',
	fieldLabel: "Please enter items separated by spaces:<br />(for example: 2 0x123 'A' 23.4 \"a text\")",
	labelPad: 5,
	labelSeparator: "",
//	labelWidth: 45,
//	allowBlank: false,
        margin: '5 5 5 5'
    });

    var commandButton = Ext.create('Ext.Button', {
        text: 'Send',
        margin: '5 5 5 5',
	handler: function() {
	    var pattern = commandData.getRawValue();
	    query(pattern, -1);	
	}
    });
	
    var commandInfoArea = Ext.create('Ext.form.Panel', {
        layout: 'vbox',
        id: 'cmd-details-panel',
        title: 'Send Command',
        width: 580,
//	flex: 3,
//        autoScroll: true,
	border: false,
//        html: 'Command test'
	align:'stretch',
	items: [commandInfo, commandData, commandButton]	
    });

    var serviceInfoArea = Ext.create('Ext.form.Panel', {
        layout: 'vbox',
//        title: 'Service Info',
        width: 580,
        region: 'east',
	align:'stretch',
	items: [serviceInfo, commandInfoArea]	
    });
/*
    var serviceInfo = Ext.create('Ext.Panel', {
        id: 'details-panel',
        title: 'Service Info',
        region: 'east',
//        bodyStyle: 'padding-bottom:15px;background:#eee;',
        autoScroll: true,
        html: ''
    });
*/

    var HTTPPacket = new XMLHttpRequest();
    HTTPPacket.onreadystatechange = process;
    var HTTPPollPacket = new XMLHttpRequest();
    HTTPPollPacket.onreadystatechange = pollAnswer;
    var HTTPQueryPacket = new XMLHttpRequest();
    HTTPQueryPacket.onreadystatechange = queryAnswer;
    var requestNumber = 0;
    var LastService = "";
    var LastId = "";    
    var forceUpdate = 0;
    var timeoutid;
    var pollid;
    var CurrService = "";
    var OldNServices = 0;
    var OldNServers = 0;
    var OldNnodes = 0;
    var OldNSearch = -1;
    function poll()
    {
//	if(!pollid)
//		return;
	requestNumber = requestNumber + 1;
	HTTPPollPacket.open( "GET", "/didPoll.json/src?dimservice="+CurrService+"&reqNr="+requestNumber+"&reqId="+randomNumber+"&force=0", true ); 
	HTTPPollPacket.send( null );
    }
    function pollAnswer()
    {
	var answer;
	if ( HTTPPollPacket.readyState != 4 )
		return;
	answer = HTTPPollPacket.responseText;
	if(answer == "")
	{
		pollid = setTimeout(poll, 5000);
		return;
	}
	var items = answer.split(" ");
	if((items[0] != OldNServices) || (items[1] != OldNServers))
	{
//	    storeHeader.load(); 
	    headerList.update(items[1]+" Servers Known - "+items[0]+" Services Available (on "+items[2]+" nodes)");
	}
	if((items[1] != OldNServers) || (items[2] != OldNnodes))
	{
	    storeNodes.load();
	    clearServices();
	}
	if(items[3] != 0)
	    doGetService();
	OldNServices = items[0];
	OldNServers = items[1];
	OldNnodes = items[2];
	if(items[4] != OldNSearch)
	{
	    if(items[4] != 0)
	        searchInfo.update("Showing: "+items[5]+" Servers - "+items[4]+" Services (on "+items[6]+" nodes)");
	    else
	        searchInfo.update("Showing: All");
	    OldNSearch = items[4];
	}
	pollid = setTimeout(poll, 5000);
    }

    function query(pattern, force)
    {
	if(pollid)
		clearTimeout(pollid);
	pollid = 0;
	requestNumber = requestNumber + 1;
	HTTPQueryPacket.open( "GET", "/didQuery.json/src?dimservice="+pattern+"&reqNr="+requestNumber+"&reqId="+randomNumber+"&force="+force, true ); 
	HTTPQueryPacket.send( null );
    }
    function queryAnswer()
    {
	var answer;
	if ( HTTPQueryPacket.readyState != 4 )
		return;
	answer = HTTPQueryPacket.responseText;
	if(answer == "load")
	{
		storeNodes.load(); 
		clearServices();
		poll();
	}
	else
	pollid = setTimeout(poll, 1000);
//	poll();
    } 

    function doGetService()
    {
	getService(LastService, LastId);
    }
    function getService(name, id)
    {
	if(pollid)
		clearTimeout(pollid);
	pollid = 0;
	forceUpdate = 0;
	if(LastService != name)
	{
		forceUpdate = 1;
		LastService = name;
		LastId = id;
	}
	var items = id.split("|");
	if(items.length == 3)
	{
//		serviceInfo.update(name + " is a DIM Command");
		commandInfo.update(name + " is a DIM Command");
//		serviceInfo.setVisible(0);
//		commandInfoArea.setVisible(1);
		CurrService = "";
		forceUpdate = -1;
//		return;
	}
	var name1 = name.replace(/\?/g,"%3F");
	name1 = name1.replace(/\&/g,"%26");
	if(forceUpdate != -1)
		CurrService = name1;
	requestNumber = requestNumber + 1;
	HTTPPacket.open( "GET", "/didServiceData.json/src?dimservice="+name1+"&id=src&reqNr="+requestNumber+"&reqId="+randomNumber+"&force="+forceUpdate, true ); 
	HTTPPacket.send( null );
    }
    function process() 
    {
	serviceInfo.update("Updating - state "+HTTPPacket.readyState+"...");
	if ( HTTPPacket.readyState != 4 )
		return; 
	if(HTTPPacket.responseText == "")
	{
//		timeoutid = window.setTimeout(doGetService, 5000);
		pollid = setTimeout(poll, 5000);
		return;
	}
	if(forceUpdate != -1)
	{
		serviceInfo.update(HTTPPacket.responseText);
		serviceInfo.setVisible(1);
		commandInfoArea.setVisible(0);
	}
	else
	{
		commandInfo.update(HTTPPacket.responseText);
		serviceInfo.setVisible(0);
		commandInfoArea.setVisible(1);
	}
//	timeoutid = window.setTimeout(doGetService, 5000);
	pollid = setTimeout(poll, 5000);
    } 

    var serviceList = Ext.create('Ext.tree.Panel', {
        title: 'Services',
        width: 360,
        height: 150,
        store: storeServices,
        rootVisible: false,
	autoScroll: true,
        listeners: {
	    itemclick: function(view, rec, item, index, evtObj) {
		getService(rec.get('text'),rec.get('id'));
	    }
        }	
    });

    var nodeTree = Ext.create('Ext.tree.Panel', {
        title: 'Nodes & Servers',
        width: 360,
        height: 150,
        store: storeNodes,
        rootVisible: false,
	autoScroll: true,
//	deferRowRender: true,
        listeners: {
	    itemclick: function(view, rec, item, index, evtObj) {
		if(rec.get('leaf') == true)
		{
		    storeServices.load({
		        params: {
		            dimserver: rec.get('text'),
		            dimnode: rec.get('parentId'),
			    dimserverid: rec.get('id')
			}
		    });
		}
	    }
        }	
    });
/*    
    var storeHeader = Ext.create('Ext.data.Store', {
        proxy: {
            type: 'rest',
            url: '/didHeader.json',
            reader: {
                type: 'json',
                root: 'items'
            }
        },
//	autoLoad: true,
        fields: ['text']
    });

    var headerList = Ext.create('Ext.grid.Panel', {
        layout: 'fit',
        title: 'DID - DIM Information Display',
//        width: 500,
        height: 70,
        store: storeHeader,
	hideHeaders: true,
	columns: [{ text: 'Text', dataIndex: 'text', flex: 1 }]
    });
*/
    var headerList = Ext.create('Ext.Panel', {
        layout: 'fit',
        title: 'DID - DIM Information Display',
        id: 'top-panel',
        width: 2000,
        height: 55,
//        margin: '5 0 5 5',
//	border: 0,
        bodyPadding: '5 0 5 5',
        html: ''
    });

    var searchButton = Ext.create('Ext.Button', {
        text: 'Search',
        margin: '2 0 5 5',
	handler: function() {
//		var pattern = getElementById('pattern');
//		serviceInfo.update(inputArea.getRawValue());
//		storeServices.removeAll();
//		storeServices.load({
//		        params: {
//		            dimserver: "",
//		            dimnode: "",
//			    dimserverid: ""
//			}
//		});
		clearServices();
		var pattern = inputArea.getRawValue();
		query(pattern, 0);	
	}
    });

    var allButton = Ext.create('Ext.Button', {
        text: 'Show All',
        margin: '2 0 5 5',
	handler: function() {
//		var pattern = getElementById('pattern');
//		serviceInfo.update(inputArea.getRawValue());
//		var pattern = inputArea.getRawValue();
//		query(pattern);	
//		storeServices.removeAll();
//		storeServices.load({
//		        params: {
//		            dimserver: "",
//		            dimnode: "",
//			    dimserverid: ""
//			}
//		});
		clearServices();
		var pattern = "";
		query(pattern, 0);	
	}
    });
	
    var searchInfo = Ext.create('Ext.Panel', {
        layout: 'fit',
        id: 'search-panel',
//        title: 'Service Info',
//       region: 'east',
//        bodyStyle: 'padding-bottom:15px;background:#eee;',
//        autoScroll: true,
        margin: '5 0 5 10',
//	bodyBorder: false,
	border: 0,
        html: ''
    });

    var inputArea = Ext.create('Ext.form.field.Text', {
        width: 400,
        id: 'pattern',
	xtype: 'textfield',
	name: 'Search pattern',
	fieldLabel: 'pattern',
	labelWidth: 45,
//	allowBlank: false,
        margin: '2 0 5 5'
    });

    var searchArea = Ext.create('Ext.form.Panel', {
        layout: 'hbox',
        title: 'Service Search',
        width: 2000,
//        height: 30,
//        margins: '2 0 5 5',
	items: [inputArea, searchButton, allButton, searchInfo]	
    });
    

    Ext.create('Ext.Viewport', {
        layout: 'border',
        title: 'DID',
        items: [{
            layout: 'vbox',
            id: 'layout-browser3',
            region:'north',
            border: false,
            split:true,
            margins: '2 0 5 5',
            items: [headerList, searchArea]
        },{
            layout: 'fit',
            id: 'layout-browser',
            region:'west',
            border: false,
            split:true,
            margins: '2 0 5 5',
            width: 220,
            minSize: 100,
            maxSize: 500,
            items: [nodeTree]
        },{
            layout: 'fit',
            id: 'layout-browser1',
            region:'center',
            border: false,
            split:true,
            margins: '2 0 5 5',
            minSize: 100,
            maxSize: 500,
//            items: [nodeTree, serviceList]
            items: [serviceList]
        },{
            layout: 'fit',
            id: 'layout-browser2',
            region:'east',
            border: false,
            split:true,
            margins: '2 0 5 5',
            width: 580,
            minSize: 100,
            maxSize: 600,
            items: [serviceInfoArea]
        }
        ],
        renderTo: Ext.getBody()
    });
    commandInfoArea.setVisible(0);
//    storeHeader.load(); 
//    pollid = window.setTimeout(poll, 1000);
    poll();
});