/*
 * Copyright 2016 - 2017 Anton Tananaev (anton@traccar.org)
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * 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.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program. If not, see <http://www.gnu.org/licenses/>.
 */

Ext.define('Traccar.view.map.BaseMap', {
    extend: 'Ext.panel.Panel',
    xtype: 'baseMapView',

    layout: 'fit',

    getMap: function () {
        return this.map;
    },

    getMapView: function () {
        return this.mapView;
    },

    initMap: function () {
        var server, layer, type, bingKey, lat, lon, zoom, target;

        server = Traccar.app.getServer();

        type = Traccar.app.getPreference('map', null);
        bingKey = server.get('bingKey');

        if (type === 'custom') {
            layer = new ol.layer.Tile({
                source: new ol.source.XYZ({
                    url: server.get('mapUrl'),
                    attributions: [
                        new ol.Attribution({
                            html: ''
                        })
                    ]
                })
            });
        } else if (type === 'bingRoad') {
            layer = new ol.layer.Tile({
                source: new ol.source.BingMaps({
                    key: bingKey,
                    imagerySet: 'Road'
                })
            });
        } else if (type === 'bingAerial') {
            layer = new ol.layer.Tile({
                source: new ol.source.BingMaps({
                    key: bingKey,
                    imagerySet: 'Aerial'
                })
            });
        } else if (type === 'bingHybrid') {
            layer = new ol.layer.Tile({
                source: new ol.source.BingMaps({
                    key: bingKey,
                    imagerySet: 'AerialWithLabels'
                })
            });
        } else if (type === 'carto') {
            layer = new ol.layer.Tile({
                source: new ol.source.XYZ({
                    url: 'https://cartodb-basemaps-{a-d}.global.ssl.fastly.net/light_all/{z}/{x}/{y}.png',
                    attributions: [
                        new ol.Attribution({
                            html: [
                                '&copy; <a href="http://www.openstreetmap.org/copyright">OpenStreetMap</a> ' +
                                'contributors, &copy; <a href="https://carto.com/attributions">CARTO</a>'
                            ]
                        })
                    ]
                })
            });
        } else if (type === 'baidu') {
            layer = new ol.layer.Tile({
                source: new ol.source.XYZ({
                    projection: 'BD-MC',
                    tileUrlFunction: function (tileCoord) {
                        var urlsLength = 5, z = tileCoord[0], x = tileCoord[1], y = tileCoord[2], hash, index;

                        hash = (x << z) + y;
                        index = hash % urlsLength;
                        index = index < 0 ? index + urlsLength : index;

                        if (x < 0) {
                            x = 'M' + -x;
                        }
                        if (y < 0) {
                            y = 'M' + -y;
                        }
                        return 'http://online{}.map.bdimg.com/onlinelabel/?qt=tile&x={x}&y={y}&z={z}&styles=pl'
                            .replace('{}', index).replace('{x}', x).replace('{y}', y).replace('{z}', z);
                    },
                    tileGrid: new ol.tilegrid.TileGrid({
                        extent: ol.proj.transformExtent([-180, -74, 180, 74], 'EPSG:4326', 'BD-MC'),
                        origin: [0, 0],
                        minZoom: 3,
                        resolutions: [
                            262144, 131072, 65536, 32768, 16384, 8192, 4096, 2048,
                            1024, 512, 256, 128, 64, 32, 16, 8, 4, 2, 1, 0.5
                        ]
                    }),
                    attributions: [
                        new ol.Attribution({
                            html: '&copy; <a href="http://map.baidu.com/">Baidu</a>'
                        })
                    ]
                })
            });
        } else if (type === 'yandexMap') {
            layer = new ol.layer.Tile({
                source: new ol.source.XYZ({
                    url: 'https://vec0{1-4}.maps.yandex.net/tiles?l=map&x={x}&y={y}&z={z}',
                    projection: 'EPSG:3395',
                    attributions: [
                        new ol.Attribution({
                            html: '&copy; <a href="https://yandex.com/maps/">Yandex</a>'
                        })
                    ]
                })
            });
        } else if (type === 'yandexSat') {
            layer = new ol.layer.Tile({
                source: new ol.source.XYZ({
                    url: 'https://sat0{1-4}.maps.yandex.net/tiles?l=sat&x={x}&y={y}&z={z}',
                    projection: 'EPSG:3395',
                    attributions: [
                        new ol.Attribution({
                            html: '&copy; <a href="https://yandex.com/maps/">Yandex</a>'
                        })
                    ]
                })
            });
        } else {
            layer = new ol.layer.Tile({
                source: new ol.source.OSM({})
            });
        }

        lat = Traccar.app.getPreference('latitude', Traccar.Style.mapDefaultLat);
        lon = Traccar.app.getPreference('longitude', Traccar.Style.mapDefaultLon);
        zoom = Traccar.app.getPreference('zoom', Traccar.Style.mapDefaultZoom);

        this.mapView = new ol.View({
            center: ol.proj.fromLonLat([lon, lat]),
            zoom: zoom,
            maxZoom: Traccar.Style.mapMaxZoom
        });

        this.map = new ol.Map({
            target: this.body.dom.id,
            layers: [layer],
            view: this.mapView
        });

        target = this.map.getTarget();
        if (typeof target === 'string') {
            target = Ext.get(target).dom;
        }

        this.map.on('pointermove', function (e) {
            var hit = this.forEachFeatureAtPixel(e.pixel, function () {
                return true;
            });
            if (hit) {
                target.style.cursor = 'pointer';
            } else {
                target.style.cursor = '';
            }
        });

        this.map.on('click', function (e) {
            var i, features = this.map.getFeaturesAtPixel(e.pixel, {
                layerFilter: function (layer) {
                    return !layer.get('name');
                }
            });
            if (features) {
                for (i = 0; i < features.length; i++) {
                    this.fireEvent('selectfeature', features[i]);
                }
            } else {
                this.fireEvent('deselectfeature');
            }
        }, this);
    },

    listeners: {
        afterrender: function () {
            this.initMap();
        },

        resize: function () {
            this.map.updateSize();
        }
    }
}, function () {
    proj4.defs('BD-MC', '+proj=merc +lon_0=0 +units=m +ellps=clrk66 +no_defs');
    proj4.defs('EPSG:3395', '+proj=merc +lon_0=0 +k=1 +x_0=0 +y_0=0 +datum=WGS84 +units=m +no_defs');
    ol.proj.get('EPSG:3395').setExtent([-20037508.342789244, -20037508.342789244, 20037508.342789244, 20037508.342789244]);
});