// Copyright (c) 2005 Just Objects B.V. <just@justobjects.nl>
// Distributable under LGPL license. See terms of license at gnu.org.

/*
 * GeoTracing app.
 *
 * PURPOSE
 * Library representing the app. All starts here.
 *
 * Author: Just van den Broecke
 * $Id: gtapp.js,v 1.18 2005/10/23 18:22:09 just Exp $
 */

 // Pushlet Data Event Callback from Server
 function onData(event) {
   GT.onPushletData(event);
 }

 // The GeoTracing application functions
 var GT = {
    map: null,
	players : null,
	live: false,
    init: function() {

	   // Init server.js
       SRV.init();
       GT.showStatus('Creating map...');
       GT.map = GT.createMap();
	   // Init tracer.js
       TRC.init(GT.map);
       // Get all active tracks
       GT.showStatus('Receiving active tracks...');
  //     SRV.get('q-active-tracks', GT.onQueryActiveTracks);
    },

	createMap: function() {
    var WMS_URL_BLACK='img/blacksquare.jpg?';
    var WMS_URL_STREETS='http://www.n8spel.nl//gt/geodan-topdag.jsp?';
    var WMS_URL_TOP='http://www.n8spel.nl//gt/geodan-top.jsp?';
    var G_MAP_BLACK = createWMSSpec(WMS_URL_BLACK, "Night", "Night", "fakelayer", "fakedef", "image/jpeg", "1.1.1");
    var G_MAP_STREETS = createWMSSpec(WMS_URL_STREETS, "Streets", "Streets", "s1", "s2", "image/jpeg", "1.1.1");
    var G_MAP_TOP = createWMSSpec(WMS_URL_TOP, "Topo", "Topo", "t1", "t2", "image/jpeg", "1.1.1");

      // Create mapspecs array
      var mapSpecs = [];
      mapSpecs.push();
      mapSpecs.push(G_MAP_BLACK);
      mapSpecs.push(G_MAP_STREETS);
      mapSpecs.push(G_MAP_TOP);
      mapSpecs.push(G_SATELLITE_TYPE);

      // Setup the map
     var map = new GMap(document.getElementById("map"), mapSpecs);
      map.setMapType(G_MAP_BLACK);
      map.centerAndZoom(new GPoint(4.900435, 52.37261), 2);
      GEvent.addListener(map, "move", GT.checkBounds);	  
      return map;

    },
	setNacht:  function() {
		var map = GT.map;
		var WMS_URL_BLACK='http://www.n8spel.nl//gt/geodan-topnacht.jsp?';
      	var G_MAP_BLACK = createWMSSpec(WMS_URL_BLACK, "Night", "Night", "t5", "t6", "image/jpeg", "1.1.1");
		map.setMapType(G_MAP_BLACK);
	},
		
	setDag: function () {
		var map = GT.map;
    	var WMS_URL_STREETS='http://www.n8spel.nl//gt/geodan-topdag.jsp?';
   		var G_MAP_STREETS = createWMSSpec(WMS_URL_STREETS, "Streets", "Streets", "s1", "s2", "image/jpeg", "1.1.1");
		map.setMapType(G_MAP_STREETS);
		},
		
	setBlanco:  function() {
		var map = GT.map;
		var WMS_URL_BLANCO='img/greysquare.jpg?';
      	var G_MAP_BLANCO = createWMSSpec(WMS_URL_BLANCO, "Night", "Night", "fakelayer", "fakedef", "image/jpeg", "1.1.1");
		map.setMapType(G_MAP_BLANCO);
	},	
	setBlack:  function() {
		var map = GT.map;
		var WMS_URL_BLACK='img/blacksquare.jpg?';
      	var G_MAP_BLACK = createWMSSpec(WMS_URL_BLACK, "Night", "Night", "fakelayer", "fakedef", "image/jpeg", "1.1.1");
		map.setMapType(G_MAP_BLACK);
	},	
	
	clearMap: function () {
		var tracer;
		for(tracer in TRC.tracers)	{
			var t = TRC.getTracer(tracer);
			t.hide();
			if(t.activeTrack != null) { t.activeTrack.remove();}
		//	TRC.deleteTrack(t.activeTrack.id, t.name);
			if(t.interv != null) { clearInterval(t.interv); }
			}
		TRC.tracers = new Array(0);	
		},	
   checkBounds: function () { 
   		var map = GT.map;
        var bounds = map.getBoundsLatLng(); 
        if (bounds.minY < 52.35) 
			{ 
				var center = map.getCenterLatLng(); 
      			map.centerAndZoom(new GPoint(4.900435, 52.37261), 2);
            } 
		        if (bounds.maxY > 52.39) 
			{ 
			var center = map.getCenterLatLng(); 
      			map.centerAndZoom(new GPoint(4.900435, 52.37261), 2);
            }
			if (bounds.minX < 4.8) 
			{ 
				var center = map.getCenterLatLng(); 
      			map.centerAndZoom(new GPoint(4.900435, 52.37261), 2);
            } 
		        if (bounds.maxX > 5) 
			{ 
			var center = map.getCenterLatLng(); 
      			map.centerAndZoom(new GPoint(4.900435, 52.37261), 2);
            } 
        }, 
    // Query active tracks callback
	onQueryActiveTracks: function(records) {
       //GT.showStatus('Received active ' + records.length + ' tracks');
		GT.live = false;
       // Create a Tracer for each active track
       for (i=0; i < records.length; i++) {
         tracer = TRC.createTracer(records[i].getField('name'),records[i].getField('lon'), records[i].getField('lat'),records[i].getField('loginname'));
         // Draw the active track
         tracer.drawTrack(records[i].getField('id'));
		 tracer.show();
       }

       // Listen to Pushlet events from server (see onData)
	//   p_join_listen('/gt');

       // Hide status div
       // GT.hideStatus();onQueryLiveTracks
    },
	onQueryArchiveTrack: function(records) {
		GT.live = false;
       // Create a Tracer for each active track
       for (var i=0; i < records.length; i++) {
         tracer = TRC.createTracer(records[i].getField('name'),records[i].getField('lon'), records[i].getField('lat'),records[i].getField('loginname'));
         tracer.drawTrack(records[i].getField('id'));
       }
    },
	archiveTrack: function(name,lon,lat,id, color) {
	   if (GT.live == true) { 
	      p_leave();
           }

		 GT.live = false;
		 GT.clearMap();
         tracer = TRC.createTracer(name,lon, lat, color);
         tracer.drawTrack(id);
		 tracer.show();
    },
	onQueryLiveTracks: function(records) {
           var mustJoin = false;
  if (GT.live == false) {
    mustJoin = true;
  }
  GT.live = true;

       for (i=0; i < records.length; i++) {
         tracer = TRC.createTracer(records[i].getField('name'),records[i].getField('lon'), records[i].getField('lat'),records[i].getField('loginname'));
		 var id = records[i].getField('id');		 
         tracer.drawTrack(id);
		 tracer.show();
		}
		if (mustJoin == true) { 
	   p_join_listen('/gt');
           }
    },
	
	hideStatus: function() {
      DH.hide('status');
    },

    showStatus: function(txt) {
      DH.setHTML('status', txt);
    },

    blinkStatus: function() {
		DH.toggleVisibility('status');

		// Trick to have setTimeout() call our object method
     	setTimeout('GT.blinkStatus()', DH.isVisible('status') ? 3000 : 400);
	},

	// Pushlet Data Event Callback from Server
	onPushletData: function (event) {
		if(GT.live == false) { return true;}
	  // See EventPublisher.java for Event types/fields
	  // Event types and attributes:
	  // "user-hb" : id, name, time
	  // "user-move": id, name, time, lon, lat
	  // "medium-add": id, name, kind, mime, time, userid, username, trackid, trackname, lon, lat, ele
	  // "poi-add": id, name, type, state, time, userid, username, trackid, trackname, lon, lat, ele
	  // "poi-delete": id, userid, username, trackid, trackname
	  // "poi-hit": id, name, type, state, time, userid, username, ownerid, ownername, trackid, trackname, lon, lat, ele
	  //" track-create": id, name, userid, username
	  // "track-delete": id, name, userid, username
	  // "track-suspend": id, name, userid, username
	  // "track-resume": id, name, userid, username

	   var eventType = event.get('event');
	//   alert(eventType);
       var tracerName;
	   if (eventType == 'user-move') {
         var tracerName = event.get('trackname');
		 var tracerId = event.get('id');
         // Create Tracer if not already on map
         var tracer = TRC.getTracer(tracerName);
         if (!tracer) {
           tracer = TRC.createTracer(tracerName, event.get('lon'), event.get('lat'));
         }

         // Set indicator
         tracer.setLive();
		 	GT.map.centerAndZoom(new GPoint(event.get('lon'), event.get('lat')), GT.map.getZoomLevel());

         tracer.move(event.get('lon'), event.get('lat'));
       } else if (eventType == 'user-hb') {
         var tracerName = event.get('name');
         // Create Tracer if not already present
         var tracer = TRC.getTracer(tracerName);
         if (!tracer) {
           tracer = TRC.createTracer(tracerName);
         }

       } else if (eventType == 'medium-add') {
         tracerName = event.get('trackname');
         var lon = event.get('lon');
         var lat = event.get('lat');
         var tracer = TRC.getTracer(tracerName);
         if (!tracer) {
           tracer = TRC.createTracer(tracerName, lon, lat);
         }
         var medium = new Medium(event.get('id'),
           event.get('name'),
           event.get('kind'),
           event.get('mime'),
           event.get('time'),
           tracer,
           lon,
           lat);

         tracer.addMedium(medium);

        } else if (eventType == 'track-create') {
		 	var color = event.get('name');
		 	tracerName = event.get('username');
         // Get Tracer
		 	var colors = new Array (0, 'yellow', '#FFFF00', 0, 'green','#00EE00', 0, 'orange', '#FF9933', 0,'red','#CC0000',0, 'blue','#0066FF', 0,'purple','#FF66FF');
		 	for(var j = 0; j < colors.length; j++) {
				if(tracerName == colors[j]) { var c = colors[j+1]; } 
			}
//			alert(c);
 		 	for(t in TRC.tracers ) {
			 if(TRC.tracers[t].activeTrack != null) {
	//			 alert(TRC.tracers[t].activeTrack.color);
				if (TRC.tracers[t].activeTrack.color == c) {
					TRC.tracers[t].deleteTrack(TRC.tracers[t].id,TRC.tracers[t].name);
				}
			 }
		 } 
		tracer = TRC.createTracer(color,0,0,tracerName);
		tracer.newTrack(event.get('id'), color);

	} else if (eventType == 'track-delete') {
	  	 for(t in TRC.tracers ) {
			 if(TRC.tracers[t].activeTrack != null) {
				if (TRC.tracers[t].activeTrack.id == event.get('id')) {
			//		TRC.tracers[t].deleteTrack(TRC.tracers[t].id,TRC.tracers[t].name);
				}
			 }
		 }  
       //  tracerName = event.get('trackname');

         // Get Tracer
         var tracer = TRC.getTracer(tracerName);
         if (tracer) {
        // 	tracer.deleteTrack(event.get('id'), event.get('username'));
		 	}
		 }
/*        } else if (eventType == 'track-suspend') {
       } else if (eventType == 'track-resume') {
       } else {
       }
*/
	 }


   }

  // Starts it all
  DH.addEvent(window, 'load', GT.init, false);