/*
 * Let's GO!
 */

var myMap;
var categories = Array();
var points = Array();
var pointsSources = Array();
var markers; // Используется для кластеризации
var search;
var route = false;
var addPointInProcess = false;
var layer;
var layers = Array();
var defaultZoom = 13;

categories.im = L.icon({
	iconUrl: '/ico/man.png',
	iconSize: [32, 37],
	iconAnchor: [16, 37],
	popupAnchor: [0, 1]
});

// -----------------------------------------------------------------------------

/**
 * Инициализируем яндекс-карты и узнаём расположение пользователя.
 */
ymaps.ready(function () {
	lat = ymaps.geolocation.latitude;
	lng = ymaps.geolocation.longitude;

	if (pointLat == pointLng) {
		init(lat, lng);
	} else {
		init(pointLat, pointLng);
	}

	points.im = L.marker([lat, lng], {icon: categories.im, title: 'Вы здесь'});
	points.im.addTo(myMap);
	points.im.bindPopup('<b>Ваше местоположение</b><br/><img src="/ico/man.png" /> <button type="button" class="btn btn-default btn-xs" onclick="addToRoute(\'im\')"><span class="glyphicon glyphicon-plus"></span> Добавить в маршрут</button>');
	suggestInit('#addressField');
});

/**
 * Инициализируем переменные и подгружаем данные.
 * @returns true
 */
function init(lat, lng) {
	myMap = L.map('map', {zoomControl: false}).setView([lat, lng], defaultZoom);
	markers = new L.MarkerClusterGroup({showCoverageOnHover: false, maxClusterRadius: 45});

	layers['quest'] = L.tileLayer('http://otile1.mqcdn.com/tiles/1.0.0/osm/{z}/{x}/{y}.png', {attribution: 'Map data &copy; <a href="http://openstreetmap.org">OpenStreetMap</a> contributors, <a href="http://creativecommons.org/licenses/by-sa/2.0/">CC-BY-SA</a>, Imagery © <a href="http://mapbox.com">Mapbox</a>', maxZoom: 18});
	layers['osm'] = L.tileLayer('http://{s}.tile.openstreetmap.org/{z}/{x}/{y}.png', {attribution: 'Map data &copy; <a href="http://openstreetmap.org">OpenStreetMap</a> contributors, <a href="http://creativecommons.org/licenses/by-sa/2.0/">CC-BY-SA</a>, Imagery ©</a>', maxZoom: 18});
	layers['google'] = new L.Google('HYBRID');
	layers['yandexMap'] = new L.Yandex();
	layers['yandex'] = new L.Yandex('hybrid');
	setLayer($.cookie('mapLayer') ? $.cookie('mapLayer') : 'quest');

	initCategories(); // getPoints внутри

	myMap.on('click', function (e) {
		if (!myMap._popup) {
			if (status == statusHunting)
			{
				$('#addPointId').remove();
				$('#addPointForm input:text').val('');
				$('#addPointForm textarea').val('');
				$("#addPointCategoryId option").attr('selected', null);
				$('#addPointLat').val(e.latlng.lat);
				$('#addPointLng').val(e.latlng.lng);

				$('#myModalLabel').text('Добавление новой точки');
				$('#addPointModal').modal('show');
			} else if (status == statusReHunting)
			{
				resetStatus();

				$('#addPointLat').val(e.latlng.lat);
				$('#addPointLng').val(e.latlng.lng);

				$('#myModalLabel').text('Редактирование точки');
				$('#addPointModal').modal('show');
			}
		}
		else {
			closePopup();
		}
	});

	$("#wayPoints").sortable();
	$("#wayPoints").disableSelection();
	$("#imgsContainer").sortable();

	myMap.on('moveend', function (e) {
		if (!myMap._popup && $('#boxRoute').css('display') == 'none' && status != statusMovingInHistory)
		{
			document.title = pointsCount + ' или даже больше поводов не сидеть дома';
			history.pushState({lat: myMap.getCenter().lat, lng: myMap.getCenter().lng, zoom: myMap.getZoom()}, document.title, "/?lat=" + myMap.getCenter().lat + "&lng=" + myMap.getCenter().lng + "&zoom=" + myMap.getZoom());
		}

		if (status == statusMovingInHistory)
		{
			resetStatus();
		}
	});

	$('.filterSelector').bind('change', function () {
		filter()
	});

	return true;
}

/**
 * Создаёт точку для карты - Placemark.
 * @param {Array} data
 * @returns {Array}
 */
function constructPoint(data)
{
	id = data['id'];

	points[id] = L.marker(
			[data['lat'], data['lng']], {icon: categories[data['categoryId']], title: data['name'], id: id, categoryId: data['categoryId']}
	).on('click', function (e) {
		showInfo(e.target.options.id);
	});

	return points[id];
}

/**
 * Загружает точки с сервера.
 * @returns {Boolean}
 */
function initPoints()
{
	$.ajax({
		url: "/json/points/",
		success: function (data) {
			for (var k in data) {
				markers.addLayer(constructPoint(data[k]));
			}
			myMap.addLayer(markers);

			if (getURLParameter('point') != 'null')
			{
				if (getURLParameter('point') == 'random')
				{
					showRandomPoint();
				}
				else
				{
					showInfo(getURLParameter('point'));
				}
			} else if (getURLParameter('route') != 'null')
			{
				loadRouteJSON(getURLParameter('route'));
				buildRoute(true);
			} else if ((getURLParameter('lat') != 'null') && (getURLParameter('lng') != 'null') && (getURLParameter('zoom') != 'null'))
			{
				myMap.setView([getURLParameter('lat'), getURLParameter('lng')], getURLParameter('zoom'));
			}
		}
	});

	return true;
}

/**
 * Показывает баллун для точки. Если данных для точки нет, то подгружает их с сервера.
 * @param {type} id
 * @returns {Boolean}
 */
function showInfo(id)
{
	marker = points[id];

	if (!(id in points) || marker.options.description == undefined)
	{
		marker.bindPopup("<h3>"+marker.options['title']+"</h3><img src='/img/loading.gif' style='height: 16px;' /> Загрузка...").openPopup();
		$.ajax({
			url: "/json/point/id/" + id,
			success: function (data) {
				pointsSources[id] = data;
				if (typeof (data.images) == 'object')
				{
					photos = '<div style="position: relative;">';

					if (data.images.length > 1)
						photos += '<div class="photosCount"><span class="glyphicon glyphicon-camera"></span> <b>+' + (data.photosCount - 1) + '</b></div>';

					photos += '<img src="/photos/small/' + data.img + '" onclick="showImage(\'' + id + '\')" />';
					photos += '</div>';
				}
				else
				{
					photos = '<img src="' + data.img + '" onclick="showImage(\'' + id + '\')" />';
				}

				description = '<div class="infoCard">' + '<h3>' + data.name + '</h3>' + photos;
				description += data.descriptionHtml;
				description += '</div><div class="clear"></div>';
				description += '<div class="btn-group control">';
				description += '<a type="button" class="btn btn-default" href="/page/point/id/' + id + '"><span class="glyphicon glyphicon-eye-open"></span> <span class="label">Подробнее</span></a>';
				description += '<button type="button" class="btn btn-default" onclick="addToRoute(' + id + ')"><span class="glyphicon glyphicon-map-marker"></span> <span class="label">В маршрут</span></button>';
				description += '<button type="button" class="btn btn-default" onclick="addRemoveLike(' + id + ')"><span id="myLikesButton" class="glyphicon glyphicon-' + (data.iLike ? 'ok' : 'thumbs-up') + '"></span> <span class="label">Нравится</span></button>';
				description += '<button type="button" class="btn btn-default" onclick="addRemoveFavorite(' + id + ')"><span id="myFavoritesButton" class="glyphicon glyphicon-star' + (data.inFavorites ? '' : '-empty') + ' "></span> <span class="label">Хочу посетить</span></button>';

				if (isAdmin == '1')
				{
					description += '<button type="button" class="btn btn-default" onclick="editPoint(' + id + ')"><span class="glyphicon glyphicon-pencil"></span> <span class="label">Редактировать</span></button>';
				}
				description += '</div>';

				maxWidth = $(window).width() < 500 ? $(window).width() : 500;
				maxHeight = $(window).height() < 300 ? $(window).height() : 300;
				marker.options.description = description;
				marker.bindPopup(marker.options.description, {maxWidth: maxWidth, minWidth: 400,maxHeight: maxHeight});

				markers.zoomToShowLayer(marker, function () {
					marker.openPopup();

					bounds = myMap.getBounds();
					diff = (bounds._northEast.lat - bounds._southWest.lat) / 4;
					myMap.setView([points[id]._latlng.lat + diff, points[id]._latlng.lng], myMap.getZoom());

					history.pushState({pointId: id}, document.title, "/?point=" + id);
					document.title = data.name;
				});
			}
		});
	} else {
		bounds = myMap.getBounds();
		diff = (bounds._northEast.lat - bounds._southWest.lat) / 4;
		myMap.setView([points[id]._latlng.lat + diff, points[id]._latlng.lng], myMap.getZoom());

		history.pushState({pointId: id}, document.title, "/?point=" + id);
		document.title = points[id].options.title;
	}
}

function setLayer(name)
{
	if (layer)
		myMap.removeLayer(layers[layer])

	layer = name;
	myMap.addLayer(layers[layer]);
	$('.layers').removeClass('selected');
	$('.' + layer + 'Layer').addClass('selected');
	$.cookie('mapLayer', layer);
}