"use strict";
/*
// "User defined" popup class to be able to specify a minimum size for the popup,
// so that Safari 7.0 displays it correctly (see ticket #89).
OpenLayers.Popup.WrInfo = OpenLayers.Class(OpenLayers.Popup.FramedCloud, {
	minSize: new OpenLayers.Size(180, 260),

	initialize: function(id, lonlat, contentSize, contentHTML, anchor, closeBox, closeCallback) {
		OpenLayers.Popup.FramedCloud.prototype.initialize.apply(this, arguments);
	},

	CLASS_NAME: "OpenLayers.Popup.WrInfo"
});


function init_wrmap(i, jq_map) {
	// define constants
	var EPSG4326 = new OpenLayers.Projection("EPSG:4326"); // lon/lat
	var EPSG3857 = new OpenLayers.Projection("EPSG:3857"); // google

	// tool functions
	function createElement(tagName, attributes) {
		var element = $(document.createElement(tagName));
		if (attributes === undefined) return element;
		for (var attribute in attributes) {
			element.attr(attribute, attributes[attribute]);
		}
		return element;
	}

	function appendElement(parentElement, tagName, attributes) {
		if (attributes === undefined) attributes = {};
		var element = createElement(tagName, attributes);
		parentElement.append(element);
		return element;
	}


	// extract geojson from map element and clear map element's content
	jq_map = $(jq_map);
	var ext_path = jq_map.attr('data-ext-path'); // e.g. '/mediawiki/extensions/wrmap'
	var img_path = ext_path + '/img';
	OpenLayers.ImgPath = ext_path + '/openlayers/img/'; // e.g. '/mediawiki/extensions/wrmap/openlayers/img/'
	var json_string = jq_map.children().last().text();
	jq_map.empty(); // once parsed, remove geojson string from the map element.
	var format_json = new OpenLayers.Format.JSON();
	var json_js = format_json.read(json_string);
	var format_geojson = new OpenLayers.Format.GeoJSON();
	var features_all = format_geojson.read(json_js);

	// extract, tranform and split features to layers
	var features_path = new Array();
	var features_point = new Array();
	for (var i = 0; i != features_all.length; ++i) {
		var feature = features_all[i];
		feature.geometry.transform(EPSG4326, EPSG3857);
		if (feature.geometry instanceof OpenLayers.Geometry.Point) features_point.push(feature);
		else features_path.push(feature);
	}


	// background layer
	// ----------------
	// // Google (since about 19th of November 2015 this doesn't work anymore - white background)
	// // see https://github.com/openlayers/openlayers/issues/1450
	var layer_map = new OpenLayers.Layer.Google("Google Physical", {
		type: google.maps.MapTypeId.TERRAIN
	});

	// // Alternative: OSM map
	// var layer_map = new OpenLayers.Layer.OSM();
	
	// Microsoft Bing Maps
	// var layer_map = new OpenLayers.Layer.Bing({
	// 	type: "Road",
	// 	key: "AgPH3SlIXAwajrJKf0FORQyhTqsP8KIlvtN6RKfvxe6fOB6q6-HFmg8EOFm7LSOA",
	// 	tileOptions: {crossOriginKeyword: null}});

	// // Alternative: Base map
	// // see: http://www.basemap.at
	
	// // Alternative: OpenTopoMap
	// // see: https://opentopomap.org/about

	// // Alternative: Dummy base layer
	// var layer_map = new OpenLayers.Layer.Vector("Base Layer", {
	//     isBaseLayer: true});

	
	// path layer
	// ----------
	var layer_path = new OpenLayers.Layer.Vector("Path", {
		styleMap: new OpenLayers.StyleMap(new OpenLayers.Style({
				strokeColor: '${getStrokeColor}',
				strokeWidth: '${getStrokeWidth}'
			}, {
				context: {
					getStrokeColor: function(feature) {
						if (feature.attributes.strokeColor !== undefined) return feature.attributes.strokeColor;
						if (feature.attributes.type == 'rodelbahn') return '#014e9a';
						if (feature.attributes.type == 'gehweg') return '#e98401';
						if (feature.attributes.type == 'alternative') return '#7f7fff';
						if (feature.attributes.type == 'lift') return '#000000';
						if (feature.attributes.type == 'anfahrt') return '#e1e100';
						return '#e7525b';
					},
					getStrokeWidth: function(feature) {
						if (feature.attributes.strokeWidth !== undefined) return feature.attributes.strokeWidth;
						if (feature.attributes.type == 'lift' || feature.attributes.type == 'anfahrt') return 3;
						return 6;
					}
				}
			}))
	});

	
	// point layer
	// -----------
	var filter_point_sledrun = new OpenLayers.Filter.Comparison({
		type: OpenLayers.Filter.Comparison.EQUAL_TO,
		property: 'type',
		value: 'sledrun'
	});

	// Returns 0 to 5 for features that represent sledruns as their condition
	var get_sledrun_condition = function(feature) {
		if (feature.attributes.condition === undefined) return 0;
		return feature.attributes.condition;
	}


	var layer_point = new OpenLayers.Layer.Vector("Point", {
		styleMap: new OpenLayers.StyleMap({
			'default': new OpenLayers.Style({
					graphicZIndex: 12,
					backgroundGraphicZIndex: 11,
				}, {
					context: {
						// the following context functions should only be available in the rule that uses them,
						// but the rule dependent contexts are ignored by OpenLayers (I think that's a bug)
						getCondition: get_sledrun_condition,
						getSymbol: function(feature) {
							var name = feature.attributes.type;
							return name;
						}
					},
					rules: [
						new OpenLayers.Rule({
							filter: filter_point_sledrun,
							symbolizer: {
								externalGraphic: img_path + '/marker_c_sledrun_${getCondition}nn.png',
								graphicWidth: 17,
								graphicHeight: 17,
								graphicXOffset: -8,
								graphicYOffset: -8,
								backgroundGraphic: img_path + '/marker_c_shadow.png',
								backgroundWidth: 23,
								backgroundHeight: 23,
								backgroundXOffset: -8,
								backgroundYOffset: -8,
							}
						}),
						new OpenLayers.Rule({
							elseFilter: true,
							symbolizer: {
								externalGraphic: img_path + '/marker_p_${getSymbol}.png',
								graphicWidth: 20,
								graphicHeight: 34,
								graphicXOffset: -10,
								graphicYOffset: -33,
							}
						})
					]
				}),
			highlight: new OpenLayers.Style({
					label: "${getTitle}",
					labelOutlineColor: "white",
					fontWeight: "bold"
				}, {
					context: {
						getCondition: get_sledrun_condition,
						getTitle: function(feature) {
							var title = '';
							if (feature.attributes.type != 'point') {
								title = feature.attributes.type;
								title = title.charAt(0).toUpperCase() + title.slice(1); // First letter uppercase
								if (feature.attributes.name !== undefined) title += ': ';
							}
							if (feature.attributes.name !== undefined) title += feature.attributes.name;
							return title;
						}
					},
					rules: [
						new OpenLayers.Rule({
							filter: filter_point_sledrun,
							symbolizer: {
								label: "${name}",
								labelYOffset: 14,
								externalGraphic: img_path + '/marker_c_sledrun_${getCondition}nh.png'
							}
						}),
						new OpenLayers.Rule({
							elseFilter: true,
							symbolizer: {
								labelYOffset: 40
							}
						})
					]
				}),
			select: new OpenLayers.Style({
					fillOpacity: 1.
				}, {
					context: {
						getCondition: get_sledrun_condition,
					},
					rules: [
						new OpenLayers.Rule({
							filter: filter_point_sledrun,
							symbolizer: {
								externalGraphic: img_path + '/marker_c_sledrun_${getCondition}nh.png',
								backgroundGraphic: false,
								graphicXOffset: -6,
								graphicYOffset: -6
							}
						}),
						new OpenLayers.Rule({
							elseFilter: true
						})
					]
				})
		}),
		rendererOptions: {yOrdering: true}
	});


	// map itself
	// ----------
	var lon = json_js.properties.lon;
	var lat = json_js.properties.lat;
	var zoom = json_js.properties.zoom;
	var width = json_js.properties.width;
	var height = json_js.properties.height;
	if (zoom === undefined) zoom = 10; // default zoom
	if (width === undefined) width = '100%'; // default width
	if (height === undefined) height = 450;  // default: 450 pixel
	jq_map.width(width);
	jq_map.height(height);
	var map = new OpenLayers.Map(jq_map.context, {
		projection: EPSG3857,
		displayProjection: EPSG4326,
		units: "m",
		theme: null,
		layers: [layer_map, layer_path, layer_point],
		center: new OpenLayers.LonLat(lon, lat).transform(EPSG4326, EPSG3857),
		zoom: zoom
	});


	// add features
	// if this would be done before the layer is added to the map, the features are not added
	layer_path.addFeatures(features_path); 
	layer_point.addFeatures(features_point); 

	// disable mouse wheel zoom
	var navigation_control = map.getControlsByClass('OpenLayers.Control.Navigation')[0];
	navigation_control.disableZoomWheel();

	// layer switcher
	// map.addControl(new OpenLayers.Control.LayerSwitcher());

	// print sledrun name when mouse moves over it
	map.addControl(new OpenLayers.Control.SelectFeature(layer_point, {
		hover: true,
		highlightOnly: true,
		autoActivate: true,
		renderIntent: "highlight"
	}));

	// show popup when user clicks on a sledrun icon
	map.addControl(new OpenLayers.Control.SelectFeature(layer_point, {
		autoActivate: true,
		toggle: true,
		onSelect: function(feature) {
			var attr = feature.attributes;
			var popup_div = createElement('div');

			// name
			if (attr.name !== undefined && (attr.wiki !== undefined || attr.thumb_url !== undefined)) {
				var h2 = appendElement(popup_div, 'h2');
				if (attr.wiki === undefined) h2.text(attr.name);
				else appendElement(h2, 'a', {href: attr.wiki}).text(attr.name);
			}

			// sledrun information
			if (attr.type == 'sledrun') {
				var p = appendElement(popup_div, 'p').text('Rodelbahnzustand').append(createElement('br'));
				if (attr.condition !== undefined) {
					var condition_text = {1: 'Sehr gut', 2: 'Gut', 3: 'Mittelmäßig', 4: 'Schlecht', 5: 'Geht nicht'};
					var year_month_day = attr.date_report.split('-');
					p.append(createElement('a', {href: attr.wiki + '#Eintr.C3.A4ge'}).text(condition_text[attr.condition]), ' ');
					p.append(createElement('small').text(year_month_day[2] + '.' + year_month_day[1] + '.'), ' ');
					p.append(createElement('em').append(createElement('a', {href: attr.wiki + '#Eintragen'}).text('Neu')));
				} else {
					p.append(createElement('em').append(createElement('a', {href: attr.wiki + '#Eintragen'}).text('Bitte eintragen')));
				}
			}

			// wiki link
			if (attr.wiki !== undefined) {
				var a = appendElement(appendElement(popup_div, 'p'), 'a', {href: attr.wiki});
				var detail_text = 'Details';
				if (attr.type == 'sledrun') detail_text += ' zur Rodelbahn';
				if (attr.type == 'gasthaus') detail_text += ' zum Gasthaus';
				if (attr.thumb_url === undefined) a.text(detail_text);
				else a.append(createElement('img', {src: attr.thumb_url, alt: detail_text, title: detail_text}));
			}

			// no popup if we don't have anything to say
			if (popup_div.children().length == 0) return;

			// Open popup
			var selectFeatureControl = this;
			var popup = new OpenLayers.Popup.WrInfo('sledruninfopopup_' + attr.wiki,
			feature.geometry.getBounds().getCenterLonLat(),
			null,
			popup_div.html(),
			null, true, function(event) {
				// onPopupClose
				selectFeatureControl.unselectAll();
			});
			feature.popup = popup;
			map.addPopup(popup);
		},
		onUnselect: function(feature) {
			if (feature.popup === null) return;

			// Close popup
			map.removePopup(feature.popup);
			feature.popup.destroy();
			feature.popup = null;
		}
	}));
}
*/

function init_wrmaps() {
	/*
	var jq_maps = $('.wrmap'); // all wrmap <div> elements
	jq_maps.each(init_wrmap);
	*/
}


$(document).ready(init_wrmaps);