L.TileLayer.GoogleBase = L.TileLayer.extend({
    getTileUrl: function (coords) {
        return '/Beijing/GetMap?type=47626774&zoom={0}&x={1}&y={2}'.format(coords.z, coords.x, coords.y);
    }
});

L.TileLayer.GoogleDetail = L.TileLayer.extend({
    getTileUrl: function (coords) {
        return '/Beijing/GetMap?type=1024577166&zoom={0}&x={1}&y={2}'.format(coords.z, coords.x, coords.y);
    }
});

L.TileLayer.GaodeBase = L.TileLayer.extend({
    getTileUrl: function (coords) {
        return '/Beijing/GetMap?type=1542757547&zoom={0}&x={1}&y={2}'.format(coords.z, coords.x, coords.y);
    }
});

L.TileLayer.GaodeDetail = L.TileLayer.extend({
    getTileUrl: function (coords) {
        return '/Beijing/GetMap?type=1447870524&zoom={0}&x={1}&y={2}'.format(coords.z, coords.x, coords.y);
    }
});

L.TileLayer.GaodeOther = L.TileLayer.extend({
    getTileUrl: function (coords) {
        return '/Beijing/GetMap?type=788865972&zoom={0}&x={1}&y={2}'.format(coords.z, coords.x, coords.y);
    }
});

L.tileLayer.googleBase = function () {
    return new L.TileLayer.GoogleBase();
};

L.tileLayer.googleDetail = function () {
    return new L.TileLayer.GoogleDetail();
};

L.tileLayer.gaodeBase = function () {
    return new L.TileLayer.GaodeBase();
};

L.tileLayer.gaodeDetail = function () {
    return new L.TileLayer.GaodeDetail();
};

L.tileLayer.gaodeOther = function () {
    return new L.TileLayer.GaodeOther();
};

var Map = function (parent) {
    this.Parent = parent;
    this.WindTemplate = null;
    this.MultiLayers = false;
    this.CompareLayers = false;
    this.layers = false;
    this.isMark = false;
    this.isSelected = false;

    this.ForecastPoints = null;
    this.ForecastBackwardPoints = null;
    this.ForecastForwardPoints = null;
    this.RealTimeData = null;
    this.RealTimeBackwardPoints = null;
    this.RealTimeForwardPoints = null;
    this.forwardStopPoint = null;
    this.centerPointTime = null;

    this.InfoPoint = new InfoPoint(this);
    this.SelectPoint = new SelectPoint(this);

    this.Startup = function () {
        this.CreateMap();
        this.InitCapture();
        this.LoadWindTemplate();
        this.LoadInfoPoint();
        this.InfoPoint.Startup();
        this.SelectPoint.Startup();

        $('#select-point-button').on('click', this.onSelectPointClick.bind(this));
        $('#mark-button').on('click', this.onMarkClick.bind(this));
        $('#draw-button').on('click', this.OnDrawButtonClick.bind(this));
        $('#clear-button').on('click', this.OnClearButtonClick.bind(this));
        $('#particle-switch a').on('click', this.OnParticleButtonClick.bind(this));
        $('#label-switch a').on('click', this.OnRemoveMarkersButtonClick.bind(this));
    };

    this.CreateMap = function () {
        this.map = L.map('map', {
            zoomControl: false,
            minZoom: 4,
            maxZoom: 16,
            zoomDelta: 0.05
        }).setView([39.90, 116.40], 11);

        L.tileLayer.googleBase().addTo(this.map);
        L.tileLayer.googleDetail().addTo(this.map);

        L.tileLayer.gaodeBase().addTo(this.map);
        L.tileLayer.gaodeDetail().addTo(this.map);
        L.tileLayer.gaodeOther().addTo(this.map);

        $('.leaflet-control-attribution').hide();

        $('.latlng').text('当前经纬度：{0}, {1}'.format(this.getLatLng(116.400000000), this.getLatLng(39.90000000)));
        this.map.on('mousemove', this.OnMapMove.bind(this));
    };

    this.CenterMap = function (lat, lng) {
        this.map.setView([lat, lng], 11);
    };

    this.OnMapMove = function (e) {
        $('.latlng').text('当前经纬度：{0}, {1}'.format(this.getLatLng(e.latlng.lng), this.getLatLng(e.latlng.lat)))
    };

    this.getLatLng = function (value) {
        value = value.toString()
        let index = value.indexOf('.')
        if (index !== -1) {
            value = value.substring(0, 6 + index + 1)
        } else {
            value = value.substring(0)
        }
        return parseFloat(value).toFixed(6)
    }

    this.OnParticleButtonClick = function () {
        // Toggle switch on/off
        var parent = $(event.target).parent();
        parent.toggleClass('switch-on');

        // Hide wind layer
        if (!parent.hasClass('switch-on')) {
            this.HideWindLayer();
            return;
        }

        // Add wind layer
        var url = 'http://{0}/bj/getwind/{1}'.format(Config.ApiRoot, this.GetWindFileName());
        $.getJSON(url).done(function (data) {
            this.WindTemplate[0].data = [];
            this.WindTemplate[1].data = [];

            $(data).each(function (index, item) {
                this.WindTemplate[0].data.push(item.u);
                this.WindTemplate[1].data.push(item.v);
            }.bind(this));

            this.ShowWindLayer(this.WindTemplate);
        }.bind(this)).fail(function (xhr, status, error) {
            var message = "Json文件加载失败: Status={0}, Error={1}".format(status, error);
            this.MessageBox("error", message);
        }.bind(this));
    };

    this.OnRemoveMarkersButtonClick = function () {
        var parent = $(event.target).parent();
        parent.toggleClass('switch-on');

        if (!parent.hasClass('switch-on')) {
            $('.point').hide();
            $('.time-label').hide();
        } else {
            $('.point').show();
            $('.time-label').show();
        }
    };

    this.OnDrawButtonClick = function () {
        if (this.map.hasLayer(this.lineLayer))
            this.map.removeLayer(this.lineLayer);

        this.point = [];
        this.lineLayer = new L.FeatureGroup();
        this.map.addLayer(this.lineLayer);

        this.map.on(L.Draw.Event.CREATED, function (e) {
            this.lineLayer.addLayer(e.layer);
            this.point.push([e.layer._latlngs[0].lng, e.layer._latlngs[0].lat], [e.layer._latlngs[1].lng, e.layer._latlngs[1].lat]);
            this.AddPoints(this.lineLayer, this.point, 2, '#000000', '#ffffff');
            this.SetDistance(e.layer._latlngs[0].lng, e.layer._latlngs[0].lat, e.layer._latlngs[1].lng, e.layer._latlngs[1].lat, this.lineLayer);
        }.bind(this));

        this.map.on(L.Draw.Event.DRAWVERTEX, function (e) {
            var layerIds = Object.keys(e.layers._layers);
            if (layerIds.length > 1) {
                var secondVertex = e.layers._layers[layerIds[1]]._icon;
                requestAnimationFrame(() => secondVertex.click());
            }
        }.bind(this));

        var drawer = new L.Draw.Polyline(this.map, {});
        drawer.enable();
    };

    this.OnClearButtonClick = function () {
        if (this.map.hasLayer(this.lineLayer))
            this.map.removeLayer(this.lineLayer);
    };

    this.GetWindFileName = function () {
        var value = $('#release-date').datebox('getValue');
        var time = moment(value, 'YYYY/MM/DD HH:mm');

        var hour = time.format('YYYY-MM-DD_HH');
        var minute = Math.floor(time.minutes() / 10) * 10;
        return '{0}_{1}.json'.format(hour, minute === 0 ? '00' : minute);
    };

    this.LoadWindTemplate = function () {
        $.getJSON('/Content/scripts/beijing/wind-template.json', function (data) {
            this.WindTemplate = data;
        }.bind(this));
    };

    this.RemoveLayer = function (name) {
        this.map.eachLayer(function (layer) {
            if (layer.name === name)
                this.map.removeLayer(layer);
        }.bind(this));
    };

    this.ClearLayers = function () {
        this.map.eachLayer(function (layer) {
            if (layer.name !== undefined)
                this.map.removeLayer(layer);
        }.bind(this));
    };

    this.LoadAverageData = function (name, param, result) {
        this.centerPointTime = param.ReleaseTime;
        this.ClearLiveLayer(name);

        var layer = this.CreateAverageLayer(name, param, result);
        this.map.addLayer(layer);
        this.BindCloseButtons();
    };

    this.ClearLiveLayer = function (name) {
        if (this.MultiLayers)
            this.RemoveLayer(name);
        else
            this.ClearLayers();

        if (this.map.hasLayer(this.groundLayer))
            this.map.removeLayer(this.groundLayer);

        if (this.map.hasLayer(this.notGroundLayer))
            this.map.removeLayer(this.notGroundLayer);
    };

    this.LoadRealTimeData = function (name, result) {
        if (this.MultiLayers)
            this.RemoveLayer(name);

        this.CompareLayers = this.CreateCompareLayer(name, result);
        this.SetRealTimeData(result);
        this.map.addLayer(this.CompareLayers);
        this.BindCloseButtons();

        var isPullDown = $("#control-switch").hasClass("control-switch-on");
        this.Parent.Map.IsPullGround(isPullDown);
    };

    this.IsPullGround = function (isGround) {
        if (this.map.hasLayer(this.groundLayer))
            this.map.removeLayer(this.groundLayer);

        if (this.map.hasLayer(this.notGroundLayer))
            this.map.removeLayer(this.notGroundLayer);

        this.groundLayer = new L.FeatureGroup();
        this.notGroundLayer = new L.FeatureGroup();

        if (isGround) {
            this.map.removeLayer(this.notGroundLayer);
            this.map.addLayer(this.groundLayer);

            this.GroundDistancePolyline(this.groundLayer);

        } else {
            this.map.addLayer(this.groundLayer);
            this.map.addLayer(this.notGroundLayer);

            this.DistancePolyline(this.notGroundLayer);
        }
    };

    this.BindCloseButtons = function () {
        $('.close-button').on('click', function (event) {
            $('.{0}'.format($(event.target).next().attr('lng'))).hide();
            $(event.target).parent().hide();
        });
    };

    this.LoadDetailData = function (name, values) {
        this.ClearLayers();
        var layer = this.CreateDetailLayer(name, values);
        this.map.addLayer(layer);
    };

    this.CreateDetailLayer = function (name, values) {
        var features = new L.FeatureGroup();
        features.name = name;

        this.AddData(features, values);
        return features;
    };

    this.CreateAverageLayer = function (name, param, result) {
        var features = new L.FeatureGroup();
        features.name = name;

        this.AddData(features, result.backward.average);
        this.AddData(features, result.forward.average);

        this.AddPolyline(features, result.backward.points, '#ffffff', '#cccccc');
        this.AddPolyline(features, result.forward.points, '#ffffff', '#cccccc');

        this.AddCenter(features, param);
        this.AddPoints(features, result.backward.points, 0.5, '#000000', '#ffffff');
        this.AddPoints(features, result.forward.points, 0.5, '#000000', '#ffffff');

        this.AddLabels(features, result.backward.points, 'actual');
        this.AddLabels(features, result.forward.points, 'actual');
        return features;
    };

    this.CreateCompareLayer = function (name, result) {
        var features = new L.FeatureGroup();
        features.name = name;

        this.AddPolyline(features, result, 'blue', '#000000');
        this.AddPoints(features, result, 1, 'blue', '#ffffff');
        this.AddLabels(features, result, 'compare');

        return features;
    };

    this.AddData = function (features, values) {
        $(values).each(function (index, value) {
            var color = this.GetPointsColor(value[2]);
            var bounds = [[value[1] - 0.005, value[0] - 0.005], [value[1] + 0.005, value[0] + 0.005]];
            L.rectangle(bounds, {
                color: color,
                fillColor: color,
                fillOpacity: 0.75,
                weight: 0
            }).addTo(features);
        }.bind(this));
    };

    this.AddPolyline = function (features, points, color, fillColor) {
        var polyline = [];
        $(points).each(function (index, point) {
            polyline.push([point[1], point[0]]);
        });
        L.polyline(polyline, {
            fillColor: fillColor,
            color: color,
            weight: 2
        }).addTo(features);
    };

    this.SetForecastData = function (data) {
        this.ForecastPoints = data;
        this.ForecastBackwardPoints = data.backward.points;
        this.ForecastForwardPoints = data.forward.points;
    };

    this.SetRealTimeData = function (data) {
        this.RealTimeData = data;
        var index = this.GetRealTimeCenterIndex(data);
        var backwardPoints = data.slice(0, index);
        var forwardPoints = data.slice(index + 1, data.length + 1);
        
        this.RealTimeBackwardPoints = this.GetSamePoints(backwardPoints, this.ForecastBackwardPoints).realtime;
        this.RealTimeForwardPoints = this.GetSamePoints(forwardPoints, this.ForecastForwardPoints).realtime;

        this.ForecastBackwardPoints = this.GetSamePoints(backwardPoints, this.ForecastBackwardPoints).forecast;
        this.ForecastForwardPoints = this.GetSamePoints(forwardPoints, this.ForecastForwardPoints).forecast;
    };

    this.GetSamePoints = function (forecastData, realtimeData ) {
        var realtime = [];
        var forecast = [];

        for (var i = 0; i < forecastData.length; i++) {
            for (var j = 0; j < realtimeData.length; j++) {
                if (realtimeData[j][3] === forecastData[i][3]) {
                    realtime.push(realtimeData[j]);
                    forecast.push(forecastData[i]);
                }
            }
        }
        return {
            realtime: realtime, 
            forecast: forecast
        };
    };

    this.GetRealTimeCenterIndex = function (data) {
        var flag = 0;
        for (var i = 0; i < data.length; i++) {
            var time = moment(data[i][3], "YYYYMMDD_HHmmss");
            if (time.format("YYYY/MM/DD HH:mm") === this.centerPointTime)
                flag = i;
        }

        return flag;
    };

    this.DistancePolyline = function (features) {
        this.AddMaxDistancePolyline(this.GetBackwardPoints().forecastLon, this.GetBackwardPoints().forecastLat, this.GetBackwardPoints().realtimeLon, this.GetBackwardPoints().realtimeLat, features);
        this.AddMaxDistancePolyline(this.GetforwardPoints().forecastLon, this.GetforwardPoints().forecastLat, this.GetforwardPoints().realtimeLon, this.GetforwardPoints().realtimeLat, features);
    };

    this.GroundDistancePolyline = function (features) {
        let from = {
            longitude: this.ForecastPoints.backward.points[0][0],
            latitude: this.ForecastPoints.backward.points[0][1]
        };

        let to = {
            longitude: this.RealTimeData[0][0],
            latitude: this.RealTimeData[0][1]
        };

        this.AddStartStopPolyline(from.longitude, from.latitude, to.longitude, to.latitude, features);
    };

    this.AddMaxDistancePolyline = function (forecastLon, forecastLat, realtimeLon, realtimeLat, features) {
        this.AddStartStopPolyline(forecastLon, forecastLat, realtimeLon, realtimeLat, features);
    };
    
    this.GetBackwardPoints = function (features) {
        var backwardPoints = [];
        var maxItem = [];

        $(this.ForecastBackwardPoints).each(function (index, point) {
            var forecastPoint = this.GetPoints(point);
            var realtimePoint = this.GetPoints(this.RealTimeBackwardPoints[index]);
            var distance = this.CalcDistance(forecastPoint, realtimePoint);

            maxItem.push(distance);
            backwardPoints.push(distance);
        }.bind(this));

        var backwardIndex = this.GetMaxIndex(backwardPoints, maxItem.sort(function (a, b) { return a - b; }).reverse()[0]);
        return {
            forecastLon: this.ForecastBackwardPoints[backwardIndex][0],
            forecastLat: this.ForecastBackwardPoints[backwardIndex][1],
            realtimeLon: this.RealTimeBackwardPoints[backwardIndex][0],
            realtimeLat: this.RealTimeBackwardPoints[backwardIndex][1]
        };
    };

    this.GetforwardPoints = function (features) {
        var forwardPoints = [];
        var maxItem = [];

        $(this.ForecastForwardPoints).each(function (index, point) {
            var forecastPoint = this.GetPoints(point);
            var realtimePoint = this.GetPoints(this.RealTimeForwardPoints[index]);
            var distance = this.CalcDistance(forecastPoint, realtimePoint);

            maxItem.push(distance);
            forwardPoints.push(distance);

        }.bind(this));

        var forwardIndex = this.GetMaxIndex(forwardPoints, maxItem.sort(function (a, b) { return a - b; }).reverse()[0]);

        return {
            forecastLon: this.ForecastForwardPoints[forwardIndex][0],
            forecastLat: this.ForecastForwardPoints[forwardIndex][1],
            realtimeLon: this.RealTimeForwardPoints[forwardIndex][0],
            realtimeLat: this.RealTimeForwardPoints[forwardIndex][1]
        };
    };

    this.GetPoints = function (point) {
        return {
            Longitude: point[0],
            Latitude: point[1],
            Height: point[2]
        };
    };

    this.AddMaxGroundDistancePolyline = function (features) {
        var forecastLon = this.ForecastForwardPoints[this.ForecastForwardPoints.length - 1][0];
        var forecastLat = this.ForecastForwardPoints[this.ForecastForwardPoints.length - 1][1];
        var realtimeLon = this.RealTimeBackwardPoints[this.RealTimeBackwardPoints.length - 1][0];
        var realtimeLat = this.RealTimeBackwardPoints[this.RealTimeBackwardPoints.length - 1][1];

        this.AddStartStopPolyline(forecastLon, forecastLat, realtimeLon, realtimeLat, features);
    };

    this.AddStartStopPolyline = function (forecastLon, forecastLat, realtimeLon, realtimeLat, features) {
        this.SetDistance(forecastLon, forecastLat, realtimeLon, realtimeLat, features);
        var polyline = [[forecastLat, forecastLon], [realtimeLat, realtimeLon]];

        L.polyline(polyline, {
            fillColor: 'yellow',
            color: 'yellow',
            weight: 2,
            className: 'dashLines'
        }).addTo(features);
    };

    this.GetMaxIndex = function (array, value) {
        var count = ("," + array.toString() + ",").split("," + value + ",");
        var index = count[0].split(",").length - 1;
        return index;
    };
    
    this.CalcDistance = function (forecastPoint, realtimePoint) {
        var from = L.latLng(forecastPoint.Latitude, forecastPoint.Longitude);
        var to = L.latLng(realtimePoint.Latitude, realtimePoint.Longitude);
        let distance = from.distanceTo(to);
        return distance / 1000;
    };

    this.SetDistance = function (fromLon, fromLat, toLon, toLat, features) {
        var lon = (fromLon + toLon) / 2;
        var lat = (fromLat + toLat) / 2;
        var from = L.latLng(fromLat, fromLon);
        var to = L.latLng(toLat, toLon);
        var bounds = from.distanceTo(to);

        L.marker([lat, lon], {
            icon: L.divIcon({
                className: 'distance',
                html: '<span>两点之间距离为：{0}公里</span>'.format(Math.round((bounds / 1000) * 100) / 100)
            })
        }).addTo(features);
    };

    this.AddCenter = function (features, param) {
        var latlng = [param.Latitude, param.Longitude];
        L.circleMarker(latlng, {
            opacity: 1,
            weight: 0.5,
            color: 'black',
            fillColor: 'yellow',
            fillOpacity: 0.5,
            radius: 6
        }).addTo(features);

        L.marker(latlng, {
            icon: L.divIcon({
                className: 'center-label',
                html: this.GetCenterLabel(param)
            })
        }).addTo(features);
    };

    this.AddPoints = function (features, points, weight, color, fillColor) {
        $(points).each(function (index, point) {
            L.circleMarker([point[1], point[0]], {
                opacity: 1,
                weight: weight,
                color: color,
                fillColor: fillColor,
                fillOpacity: 1,
                radius: 4,
                className: 'point point{0}'.format(point[1].toString().split(".").join(""))
            }).addTo(features);
        }.bind(this));
    };

    this.AddLabels = function (features, points, className) {
        $(points).each(function (index, point) {
            var item = className === 'actual' ? point[3] : point[2];
            L.marker([point[1], point[0]], {
                icon: L.divIcon({
                    className: 'time-label {0}-time-label'.format(className),
                    html: this.NormalizeTime(point[1], point[3])
                })
            }).addTo(features);
        }.bind(this));
    };

    this.GetCenterLabel = function (param) {
        var pattern = '<p>经度：{0}</p><p>纬度：{1}</p><p>高度：{2}米</p><p>释放时间：{3}</p>';
        return pattern.format(param.Longitude, param.Latitude, param.Height, moment(param.ReleaseTime).format("MM/DD HH:mm"));
    };

    this.NormalizeTime = function (lng, time) {
        var attr = lng.toString().split(".").join("");
        var value = moment(time, "YYYYMMDD_HHmmss");
        return '<a href="javascript:;" class="close-button" title="关闭"></a><span lng="point{0}">{1}</span>'.format(attr, value.format("MM/DD HH:mm"));
    };

    this.ShowWindLayer = function (data) {
        this.WindLayer = L.velocityLayer({
            displayValues: false,
            displayOptions: {
                velocityType: 'GBR Wind',
                displayPosition: 'bottomleft',
                displayEmptyString: 'No wind data'
            },
            data: data,
            maxVelocity: 15
        });
        this.map.addLayer(this.WindLayer);
    };

    this.HideWindLayer = function () {
        if (this.map.hasLayer(this.WindLayer))
            this.map.removeLayer(this.WindLayer);
    };

    this.InitCapture = function () {
        Init();
        $('#capture-button').on('click', function () {
            var returned = Capture();
            if (returned === emCaptureFailed || returned === emCaptureUnknown) {
                $('#capture-button').hide();
                $('#download-button').show();
            }
        });
    };

    this.GetPointsColor = function (value) {
        if (value <= 0.0001)
            return 'rgb(255,255,255)';
        if (value <= 0.001)
            return 'rgb(178, 226, 249)';
        if (value <= 0.01)
            return 'rgb(93, 160, 213)';
        if (value <= 0.1)
            return 'rgb(73, 170, 106)';
        if (value <= 1)
            return 'rgb(159, 206, 81)';
        if (value <= 10)
            return 'rgb(248, 171, 67)';
        if (value <= 100)
            return 'rgb(239, 94, 41)';
        if (value <= 1000)
            return 'rgb(192, 28, 36)';
    };

    this.LoadInfoPoint = function () {
        $.ajax({
            type: "POST",
            dataType: 'text',
            url: '/Point/Query',
            data: {
                region: 'bj'
            },
            success: function (result) {
                var data = JSON.parse(result);
                data.forEach(function (item, index) {
                    var point = {
                        lat: item.Latitude,
                        lng: item.Longitude
                    };
                    this.AddInfoPoint(point, item.Title, item.Icon, item.Id)
                }.bind(this))
            }.bind(this)
        });
    };

    this.onSelectPointClick = function () {
        this.isSelected = true;

        $('#map').css('cursor', 'crosshair');
        this.SelectPiontInfo();
    };

    this.SelectPiontInfo = function () {
        this.map.on('click', function (e) {
            if (this.isSelected)
                this.SelectPoint.ShowDialog(e.latlng);
            else
                return;
        }.bind(this));
    };

    this.onMarkClick = function () {
        this.isMark = true;

        $('#map').css('cursor', 'crosshair');
        this.DrewInfoPoint();
    };

    this.DrewInfoPoint = function () {
        this.map.on('click', function (e) {
            if (this.isMark)
                this.InfoPoint.ShowDialog(e.latlng);
            else
                return;
        }.bind(this))
    };

    this.AddInfoPoint = function (point, title, icon, id) {
        let label = '<div class="info-point-block info-point{0}"><div class="info-point-top"><p>{1}</p><div class="remove-info-point""><span class="remove-info-point-btn" id="close-btn{2}"></span></div></div><div class="icon icon{3}"/></div></div>'.format(id, title, id, icon.slice(0, 1));
        L.marker([point.lat, point.lng], {
            icon: L.divIcon({
                className: 'info-point-content',
                html: label
            })
        }).addTo(this.map);

        var button = $('#close-btn{0}'.format(id));
        button.on('click', this.RemoveInfoPoint.bind(this, id));
    };

    this.RemoveInfoPoint = function (id, event) {
        $.ajax({
            type: "POST",
            dataType: 'text',
            url: '/Point/Delete',
            data: {
                id: id,
            },
            success: function () {
                $('.info-point{0}'.format(id)).hide();
            }.bind(this)
        });
    }
};