// Pandora FMS - http://pandorafms.com
// ==================================================
// Copyright (c) 2005-2009 Artica Soluciones Tecnologicas
// Please see http://pandorafms.org for full contribution list

// This program is free software; you can redistribute it and/or
// modify it under the terms of the  GNU Lesser General Public License
// as published by the Free Software Foundation; version 2

// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
// GNU General Public License for more details.

var map; // Map global var object is use in multiple places.
var statusShow = 'all';
//The name of layer hierachy because in PHP change the text name into language of user.
var storeLayerNameHierachy = '';

function js_refreshParentLines(layerName) {
	if (typeof(layerName) == 'undefined') {
		layerName = storeLayerNameHierachy;
	}
	else {
		storeLayerNameHierachy = layerName;
	}
	
	listFeaturesWithParents = Array();
	
	jQuery.each(map.getLayersByClass("OpenLayers.Layer.Vector"), function (i, layer) {
		visible = layer.visibility;
		
		jQuery.each(layer.features, function (i, feature) {
			if (feature.data.type == "point_agent_info") {
				id_parent = feature.data.id_parent;
				long_lat = feature.data.long_lat;
				id = feature.data.id;
				status = feature.data.status;
				
				listFeaturesWithParents[id] = {
					'id': id,
					'id_parent': id_parent,
					'long_lat': long_lat,
					'status': status,
					'visible': visible};
			}
		});
	});
	
	var layer = map.getLayersByName(layerName);
	layer = layer[0];
	
	layer.destroyFeatures();
	
	jQuery.each(listFeaturesWithParents, function (i, feature) {
		//INI "break" of foreach posibilites
		if (typeof(feature) == 'undefined') return;
		if (feature.id_parent == 0) return;
		if (typeof(listFeaturesWithParents[feature.id_parent]) == 'undefined') return; //The agent have parent but this parent is not in the map.
		if ((!feature.visible)
			|| (!listFeaturesWithParents[feature.id_parent].visible)) return;
		if ((isHideFeatureByStatus(feature.status))
			|| (isHideFeatureByStatus(listFeaturesWithParents[feature.id_parent].status))) return;
		//END "break" of foreach posibilites
		
		points = new Array();
		
		points[0] = new OpenLayers.Geometry.Point(feature.long_lat.lon, feature.long_lat.lat);
		points[1] =  new OpenLayers.Geometry.Point(listFeaturesWithParents[feature.id_parent].long_lat.lon, listFeaturesWithParents[feature.id_parent].long_lat.lat);
		
		var line = new OpenLayers.Feature.Vector(
			new OpenLayers.Geometry.LineString(points),
			null,
			{ strokeWidth: 2, fillOpacity: 0.2, fillColor: 'red',  strokeDashstyle: "dash", strokeColor: 'red'});
		
		layer.addFeatures(line);
	});
}

/**
 * Inicialize the map in the browser and the object map.
 * 
 * @param string id_div The id of div to draw the map.
 * @param integer initial_zoom The initial zoom to show the map.
 * @param float center_latitude The coord of latitude for center.
 * @param float center_longitude The coord of longitude for center.
 * @param array objBaseLayers The array of baselayers with number index, and the baselayer is another asociative array that content 'type', 'name' and 'url'.
 * @param array arrayControls The array of enabled controls, the controls is: 'Navigation', 'MousePosition', 'OverviewMap', 'PanZoom', 'PanZoomBar', 'ScaleLine', 'Scale'
 * 
 * @return None
 */
function js_printMap(id_div, initial_zoom, center_latitude, center_longitude, objBaseLayers, arrayControls) {
	controlsList = [];
	
	for (var controlIndex in arrayControls) {
		if (isInt(controlIndex)) {
			switch (arrayControls[controlIndex]) {
				case 'Navigation':
					controlsList.push(new OpenLayers.Control.Navigation());
					break;
				case 'MousePosition':
					controlsList.push(new OpenLayers.Control.MousePosition());
					break;
				case 'OverviewMap':
					controlsList.push(new OpenLayers.Control.OverviewMap());
					break;
				case 'PanZoom':
					controlsList.push(new OpenLayers.Control.PanZoom());
					break;
				case 'PanZoomBar':
					controlsList.push(new OpenLayers.Control.PanZoomBar());
					break;
				case 'ScaleLine':
					controlsList.push(new OpenLayers.Control.ScaleLine());
					break;
				case 'Scale':
					controlsList.push(new OpenLayers.Control.Scale());
					break;
				case 'layerSwitcher':
					controlsList.push(new OpenLayers.Control.LayerSwitcher());
					break;
			}
		}
	}
	
	
	var option = {
		controls: controlsList,
		projection: new OpenLayers.Projection("EPSG:900913"),
		displayProjection: new OpenLayers.Projection("EPSG:4326"),
		units: "m",
		numZoomLevels: 18,
		maxResolution: 156543.0339,
		maxExtent: new OpenLayers.Bounds(-20037508, -20037508, 20037508, 20037508.34)};
	
	map = new OpenLayers.Map(id_div, option);
	
	var baseLayer = null;
	
	//Define the maps layer
	for (var baselayerIndex in objBaseLayers) {
		if (isInt(baselayerIndex)) {
			switch (objBaseLayers[baselayerIndex]['type']) {
				case 'OSM':
					baseLayer = null;
					baseLayer = new OpenLayers.Layer.OSM(
						objBaseLayers[baselayerIndex]['name'], 
						objBaseLayers[baselayerIndex]['url'],
						{
							numZoomLevels: objBaseLayers[baselayerIndex]['num_zoom_levels'],
							'sphericalMercator': true
						}
					);
					map.addLayer(baseLayer);
					break;
				case 'Gmap':
					switch (objBaseLayers[baselayerIndex]['gmap_type']) {
						case 'G_PHYSICAL_MAP':
							baseLayer = new OpenLayers.Layer.Google(
								objBaseLayers[baselayerIndex]['name'],
								{type: G_PHYSICAL_MAP,
									numZoomLevels: objBaseLayers[baselayerIndex]['num_zoom_levels'],
									'sphericalMercator': true
								}
							);
							map.addLayer(baseLayer);
							break;
						case 'G_HYBRID_MAP':
							baseLayer = new OpenLayers.Layer.Google(
								objBaseLayers[baselayerIndex]['name'],
								{type: G_HYBRID_MAP,
									numZoomLevels: objBaseLayers[baselayerIndex]['num_zoom_levels'],
									'sphericalMercator': true
								}
							);
							map.addLayer(baseLayer);
							break;
						case 'G_SATELLITE_MAP':
							baseLayer = new OpenLayers.Layer.Google(
								objBaseLayers[baselayerIndex]['name'],
								{type: G_SATELLITE_MAP,
									numZoomLevels: objBaseLayers[baselayerIndex]['num_zoom_levels'],
									'sphericalMercator': true
								}
							);
							map.addLayer(baseLayer);
							break;
						default:
							baseLayer = new OpenLayers.Layer.Google(
								objBaseLayers[baselayerIndex]['name'],
								{numZoomLevels: objBaseLayers[baselayerIndex]['num_zoom_levels'],
									'sphericalMercator': true
								}
							);
							map.addLayer(baseLayer);
							break;
					}
					break;
				case 'Static_Image':
					baseLayer = null;
					baseLayer = new OpenLayers.Layer.Image(
						objBaseLayers[baselayerIndex]['name'],
						objBaseLayers[baselayerIndex]['url'],
						new OpenLayers.Bounds(objBaseLayers[baselayerIndex]['bb_left'],
							objBaseLayers[baselayerIndex]['bb_bottom'],
							objBaseLayers[baselayerIndex]['bb_right'],
							objBaseLayers[baselayerIndex]['bb_top']
						),
						new OpenLayers.Size(objBaseLayers[baselayerIndex]['image_width'], objBaseLayers[baselayerIndex]['image_height']),
						{
							projection: new OpenLayers.Projection("EPSG:4326"),
							numZoomLevels: objBaseLayers[baselayerIndex]['num_zoom_levels']
						}
					);
					map.addLayer(baseLayer);
					break;
			}
		}
	}
	
	var lonLat = new OpenLayers.LonLat(center_longitude, center_latitude)
		.transform(map.displayProjection, map.getProjectionObject());
	
	map.setCenter (lonLat, initial_zoom);
}

/**
 * Change the style of state button, and call the function "hideAgentsStatus"
 * whith new state for agents icons to show.
 * 
 * @param string newShowStatus State to show.
 * @return none
 */
function changeShowStatus(newShowStatus) {
	statusShow = newShowStatus;	
	hideAgentsStatus();
	js_refreshParentLines();
}

/**
 * Function that change the visibility of feature by status and state var
 * statusShow
 * 
 * @param object feature The feature to change the visibility
 * @param int status The status code, it can be (1,4) for bad, (2) for warning, (0) for ok and the rest
 * @return
 */
function hideFeatureByStatus(feature, status) {
	feature.style.display = 'none';
	
	switch (statusShow) {
		case 'bad':
			if ((status == 1) || (status == 4))
				feature.style.display = '';
			break;
		case 'warning':
			if (status == 2)
				feature.style.display = '';
			break;
		case 'ok':
			if (status == 0)
				feature.style.display = '';
			break;
		case 'default':
			if ((status != 1) && (status != 4) && (status != 2) && (status != 0))
				feature.style.display = '';
			break;
		case 'all':
			feature.style.display = '';
			break;
	}
}

/**
 * Test if the feature is hidden.
 * 
 * @param integer status The integer status. 
 * @return boolean The true or false.
 */
function isHideFeatureByStatus(status) {
	returnVar = true;
	
	switch (statusShow) {
		case 'bad':
			if ((status == 1) || (status == 4))
				returnVar = false;
			break;
		case 'warning':
			if (status == 2)
				returnVar = false;
			break;
		case 'ok':
			if (status == 0)
				returnVar = false;
			break;
		case 'default':
			if ((status != 1) && (status != 4) && (status != 2) && (status != 0))
				returnVar = false;
			break;
		case 'all':
			returnVar = false;
			break;
	}
	
	return returnVar;
}

/**
 * Hide the agents icons that not is of current state var statusShow.
 * 
 * @return none
 */
function hideAgentsStatus() {
	layers = map.getLayersByClass("OpenLayers.Layer.Vector");
	
	jQuery.each(layers, function (i, layer) {
		features = layer.features;
		
		jQuery.each(features, function (j, feature) {
			status = feature.data.status;
			
			hideFeatureByStatus(feature, status);
		});
		
		layer.redraw();
	});
}

/**
 * Change the refresh time for the map.
 * 
 * @param int time seconds
 * @return none
 */
function changeRefreshTime(time) {
	refreshAjaxIntervalSeconds = time * 1000;
	
	clearInterval(idIntervalAjax);
	idIntervalAjax = setInterval("clock_ajax_refresh()", refreshAjaxIntervalSeconds);
	oldRefreshAjaxIntervalSeconds = refreshAjaxIntervalSeconds;
}

/**
 * Make the layer in the map.
 * 
 * @param string name The name of layer, it's show in the toolbar of layer.
 * @param boolean visible Set visible the layer.
 * @param array dot It's a asociative array that have 'url' of icon image, 'width' in pixeles and 'height' in pixeles. 
 * 
 * @return object The layer created.
 */
function js_makeLayer(name, visible, dot) {
	if (dot == null) {
		dot = Array();
		dot['url'] = 'images/dot_green.png';
		dot['width'] = 20; //11;
		dot['height'] = 20; //11;
	}
	
	//Set the style in layer
	var style = new OpenLayers.StyleMap(
		{fontColor: "#ff0000",
			labelYOffset: - dot['height'],
			graphicHeight: dot['height'], 
			graphicWidth: dot['width'], 
			externalGraphic: dot['url'],
			label:"${nombre}"
		}
	);
	
	//Make the layer as type vector
	var layer = new OpenLayers.Layer.Vector(name, {styleMap: style});
	
	layer.setVisibility(visible);
	map.addLayer(layer);
	
	return layer;
}

/**
 * Active and set callbacks of events.
 * 
 * @param callbackFunClick Function to call when the user make single click in the map. 
 * 
 * @return None
 */
function js_activateEvents(callbackFunClick) {
	/**
	 * Pandora click openlayers object.
	 */
	OpenLayers.Control.PandoraClick = OpenLayers.Class(OpenLayers.Control, {                
		defaultHandlerOptions: {
			'single': true,
			'double': false,
			'pixelTolerance': 0,
			'stopSingle': false,
			'stopDouble': false
		},
		initialize: function(options) {
			this.handlerOptions = OpenLayers.Util.extend({}, this.defaultHandlerOptions);
			OpenLayers.Control.prototype.initialize.apply(this, arguments); 
			this.handler = new OpenLayers.Handler.Click(this, {'click': options.callbackFunctionClick}, this.handlerOptions);
		}
	});
	
	var click = new OpenLayers.Control.PandoraClick({callbackFunctionClick: callbackFunClick});
	
	map.addControl(click);
	click.activate();
}

/**
 * Test the value is a int.
 * 
 * @param mixed X The val that test to if is int.
 * 
 * @return Boolean True if it's int.
 */
function isInt(x) {
	var y=parseInt(x);
	if (isNaN(y)) return false;
	return x==y && x.toString()==y.toString();
}

/**
 * Set the visibility of a layer
 * 
 * @param string name The name of layer.
 * @param boolean action True or false
 */
function showHideLayer(name, action) {
	var layer = map.getLayersByName(name);

	layer[0].setVisibility(action);
}

/**
 * Add a point with the default icon in the map.
 * 
 * @param string layerName The name of layer to put the point.
 * @param string pointName The name to show in the point.
 * @param float lon The coord of latitude for point.
 * @param float lat The coord of longitude for point.
 * @param string id The id of point.
 * @param string type_string The type of point, it's use for ajax request.
 * @param integer statusAgent The status of point.
 * @param integer idParent Id Parent of agent.
 * 
 * @return Object The point.
 */
function js_addAgentPoint(layerName, pointName, lon, lat, id, type_string, statusAgent, idParent) {
	var point = new OpenLayers.Geometry.Point(lon, lat)
		.transform(map.displayProjection, map.getProjectionObject());
	
	var layer = map.getLayersByName(layerName);
	layer = layer[0];
	
	feature = new OpenLayers.Feature.Vector(point,
		{
			id_parent: idParent,
			status: statusAgent,
			nombre: pointName,
			id: id,
			type: type_string,
			long_lat: new OpenLayers.LonLat(lon, lat).transform(map.displayProjection, map.getProjectionObject())
		});
	
	if (isHideFeatureByStatus(statusAgent)) {
		feature.style.display = 'none';
	}
	
	layer.addFeatures(feature);
	
	return feature;
}

/**
 * Add a point with the default icon in the map.
 * 
 * @param string layerName The name of layer to put the point.
 * @param string pointName The name to show in the point.
 * @param float lon The coord of latitude for point.
 * @param float lat The coord of longitude for point.
 * @param string id The id of point.
 * @param string type_string The type of point, it's use for ajax request.
 * @param integer statusAgent The status of point.
 * 
 * @return Object The point.
 */
function js_addPoint(layerName, pointName, lon, lat, id, type_string, statusAgent) {
	var point = new OpenLayers.Geometry.Point(lon, lat)
		.transform(map.displayProjection, map.getProjectionObject());

	var layer = map.getLayersByName(layerName);
	layer = layer[0];

	feature = new OpenLayers.Feature.Vector(point,{status: statusAgent, nombre: pointName, id: id, type: type_string, long_lat: new OpenLayers.LonLat(lon, lat).transform(map.displayProjection, map.getProjectionObject()) });
	
	if (isHideFeatureByStatus(statusAgent)) {
		feature.style.display = 'none';
	}
	
	layer.addFeatures(feature);
	
	return feature;
}

/**
 * Add a agent point and set the icon in the map.
 * 
 * @param string layerName The name of layer to put the point.
 * @param string pointName The name to show in the point.
 * @param float lon The coord of latitude for point.
 * @param float lat The coord of longitude for point.
 * @param string icon Url of icon image. 
 * @param integer width The width of icon.
 * @param integer height The height of icon.
 * @param string id The id of point.
 * @param string type_string The type of point, it's use for ajax request.
 * @param integer statusAgent The status of point.
 * @param integer idParent Id Parent of agent.
 * 
 * @return Object The point.
 */
function js_addAgentPointExtent(layerName, pointName, lon, lat, icon, width, height, id, type_string, statusAgent, idParent) {
	var point = new OpenLayers.Geometry.Point(lon, lat)
	.transform(map.displayProjection, map.getProjectionObject());
	
	var layer = map.getLayersByName(layerName);
	layer = layer[0];
	
	if (typeof(statusAgent) == 'string')
		statusA = parseInt(statusAgent);
	else
		statusA = statusAgent;
	
	feature = new OpenLayers.Feature.Vector(point,
		{
			id_parent: idParent,
			status: statusA,
			id: id,
			type: type_string,
			long_lat: new OpenLayers.LonLat(lon, lat).transform(map.displayProjection, map.getProjectionObject())
		},
		{
			fontWeight: "bolder",
			fontColor: "#00014F",
			labelYOffset: -height,
			graphicHeight: width,
			graphicWidth: height,
			externalGraphic: icon,
			label: pointName
		});
	
	if (isHideFeatureByStatus(statusAgent)) {
		feature.style.display = 'none';
	}
	
	layer.addFeatures(feature);
	
	return feature;
}

/**
 * Add a point and set the icon in the map.
 * 
 * @param string layerName The name of layer to put the point.
 * @param string pointName The name to show in the point.
 * @param float lon The coord of latitude for point.
 * @param float lat The coord of longitude for point.
 * @param string icon Url of icon image. 
 * @param integer width The width of icon.
 * @param integer height The height of icon.
 * @param string id The id of point.
 * @param string type_string The type of point, it's use for ajax request.
 * @param integer statusAgent The status of point.
 * 
 * @return Object The point.
 */
function js_addPointExtent(layerName, pointName, lon, lat, icon, width, height, id, type_string, statusAgent) {
	var point = new OpenLayers.Geometry.Point(lon, lat)
	.transform(map.displayProjection, map.getProjectionObject());

	var layer = map.getLayersByName(layerName);
	layer = layer[0];
	
	if (typeof(statusAgent) == 'string')
		statusA = parseInt(statusAgent);
	else
		statusA = statusAgent;
	
	feature = new OpenLayers.Feature.Vector(point,{status: statusA, id: id, type: type_string, long_lat: new OpenLayers.LonLat(lon, lat).transform(map.displayProjection, map.getProjectionObject()) }, {fontWeight: "bolder", fontColor: "#00014F", labelYOffset: -height, graphicHeight: width, graphicWidth: height, externalGraphic: icon, label: pointName});
	
	if (isHideFeatureByStatus(statusAgent)) {
		feature.style.display = 'none';
	}
	
	layer.addFeatures(feature);
	
	return feature;
}

/**
 * 
 * @param string layerName The name of layer to put the point path.
 * @param float lon The coord of latitude for point path.
 * @param float lat The coord of longitude for point path.
 * @param string color The color of point path in rrggbb format.
 * @param boolean manual The type of point path, if it's manual, the point is same a donut.
 * @param string id The id of point path.
 * 
 * @return None
 */
function js_addPointPath(layerName, lon, lat, color, manual, id) {
	var point = new OpenLayers.Geometry.Point(lon, lat)
		.transform(map.displayProjection, map.getProjectionObject());
	
	var layer = map.getLayersByName(layerName);
	layer = layer[0];

	var pointRadiusNormal = 4;
	var strokeWidth = 2;
	var pointRadiusManual = pointRadiusNormal - (strokeWidth / 2); 
	
	if (manual) {
		point = new OpenLayers.Feature.Vector(point,{estado: "ok", id: id, type: "point_path_info", 
			long_lat: new OpenLayers.LonLat(lon, lat).transform(map.displayProjection, map.getProjectionObject())},
			{fillColor: "#ffffff", pointRadius: pointRadiusManual, stroke: 1, strokeColor: color, strokeWidth: strokeWidth, cursor: "pointer"}
		);
	}
	else {
		point = new OpenLayers.Feature.Vector(point,{estado: "ok", id: id, type: "point_path_info",
			long_lat: new OpenLayers.LonLat(lon, lat).transform(map.displayProjection, map.getProjectionObject())},
				{fillColor: color, pointRadius: pointRadiusNormal, cursor: "pointer"}
		);
	}

	layer.addFeatures(point);
}

/**
 * Draw the lineString.
 * 
 * @param string layerName The name of layer to put the point path.
 * @param Array points The array have content the points, but the point as lonlat openlayers object without transformation.
 * @param string color The color of point path in rrggbb format.
 * 
 * @return None
 */
function js_addLineString(layerName, points, color) {
	var mapPoints = new Array(points.length);
	var layer = map.getLayersByName(layerName);

	layer = layer[0];
	
	for (var i = 0; i < points.length; i++) {
		mapPoints[i] = points[i].transform(map.displayProjection, map.getProjectionObject());
	}
	
	var lineString = new OpenLayers.Feature.Vector(
		new OpenLayers.Geometry.LineString(mapPoints),
		null,
		{ strokeWidth: 2, fillOpacity: 0.2, fillColor: color, strokeColor: color}
	);

	layer.addFeatures(lineString);
}

/**
 * Return feature object for a id agent passed.
 * 
 * @param interger id The agent id.
 * @return mixed Return the feature object, if it didn't found then return null.
 */
function searchPointAgentById(id) {
	for (layerIndex = 0; layerIndex < map.getNumLayers(); layerIndex++) {
		layer = map.layers[layerIndex];

		if (layer.features != undefined) {
			for (featureIndex = 0; featureIndex < layer.features.length; featureIndex++) {
				feature = layer.features[featureIndex];
				if (feature.data.id == id) {
					return feature;
				}
			}
		}
	}

	return null;
}