// -*- mode: javascript; indent-tabs-mode: nil; c-basic-offset: 8 -*-
"use strict";

// Base layers configuration
//			"url" : "https://{a-c}.tile.openstreetmap.org/{z}/{x}/{y}.png"
//			"url" : "http://{a-c}.basemaps.cartocdn.com/light_all/{z}/{x}/{y}.png"
//			"url" : "http://{a-c}.basemaps.cartocdn.com/dark_all/{z}/{x}/{y}.png"
//			"url" : "https://korona.geog.uni-heidelberg.de/tiles/roads/x={x}&y={y}&z={z}"
//			"url" : "https://korona.geog.uni-heidelberg.de/tiles/asterh/x={x}&y={y}&z={z}"
//			"url" : "https://{a-c}.tile.openstreetmap.de/tiles/osmde/{z}/{x}/{y}.png"
//			"url" : "http://{a-c}.tilessputnik.ru/tiles/kmt2/{z}/{x}/{y}.png"
//			"url" : "https://{a-c}.tile.openstreetmap.se/hydda/full/{z}/{x}/{y}.png"
//			"url" : "https://{a-c}.tile.openstreetmap.se/osm/{z}/{x}/{y}.png"

function createBaseLayers() {
    let layers = new ol.Collection();
    let layers_group = new ol.layer.Group({
        layers: layers,
    });

    let world = new ol.Collection();
    let us = new ol.Collection();
    let europe = new ol.Collection();
    let custom = new ol.Collection();

    if (localStorage['customTiles'] != undefined) {
        custom.push(new ol.layer.Tile({
            source: new ol.source.OSM({
                "url" : localStorage['customTiles'],
            }),
            name: 'custom_tiles',
            title: 'Custom tiles',
            type: 'base',
        }));
    }
    /*
    world.push(new ol.layer.Tile({
        source: new ol.source.OSM({
            "url" : "https://maps.wikimedia.org/osm-intl/{z}/{x}/{y}.png"
        }),
        name: 'wikimedia',
        title: 'OpenStreetMap Wikimedia',
        type: 'base',
    }));
    */

    world.push(new ol.layer.Tile({
        source: new ol.source.OSM(),
        name: 'osm',
        title: 'OpenStreetMap',
        type: 'base',
    }));

    world.push(new ol.layer.Tile({
        source: new ol.source.XYZ({
            "url" : "https://server.arcgisonline.com/ArcGIS/rest/services/World_Imagery/MapServer/tile/{z}/{y}/{x}",
            "attributions" : "Tiles © Esri — Source: Esri, i-cubed, USDA, USGS, AEX, GeoEye, Getmapping, Aerogrid, IGN, IGP, UPR-EGP, and the GIS User Community",
        }),
        name: 'esri',
        title: 'ESRI Sat.',
        type: 'base',
    }));

    /*
    world.push(new ol.layer.Tile({
        source: new ol.source.OSM({
            "url" : "http://{a-d}.tile.stamen.com/terrain/{z}/{x}/{y}.png", 
            "attributions" : 'Map tiles by <a href="http://stamen.com">Stamen Design</a>, under <a href="http://creativecommons.org/licenses/by/3.0">CC BY 3.0</a>. ' 
            + 'Data by <a _href="http://openstreetmap.org">OpenStreetMap</a>, under <a href="http://www.openstreetmap.org/copyright">ODbL</a>.',
        }),
        name: 'terrain_roads',
        title: 'Terrain + Roads',
        type: 'base',
    }));

    world.push(new ol.layer.Tile({
        source: new ol.source.OSM({
            "url" : "http://{a-d}.tile.stamen.com/terrain-background/{z}/{x}/{y}.png", 
            "attributions" : 'Map tiles by <a href="http://stamen.com">Stamen Design</a>, under <a href="http://creativecommons.org/licenses/by/3.0">CC BY 3.0</a>. ' 
            + 'Data by <a href="http://openstreetmap.org">OpenStreetMap</a>, under <a href="http://www.openstreetmap.org/copyright">ODbL</a>.',
        }),
        name: 'terrain',
        title: 'Terrain',
        type: 'base',
    }));
    */

    world.push(new ol.layer.Tile({
        source: new ol.source.OSM({
            url: 'https://gibs-{a-c}.earthdata.nasa.gov/wmts/epsg3857/best/' +
            'MODIS_Terra_CorrectedReflectance_TrueColor/default/2019-07-22/' +
            'GoogleMapsCompatible_Level9/{z}/{y}/{x}.jpg',
        }),
        name: 'gibs',
        title: 'GIBS',
        type: 'base',
    }));
    // carto.com basemaps, see the following URLs for details on them:
    // http://basemaps.cartocdn.com
    // https://github.com/CartoDB/cartodb/wiki/BaseMaps-available

    let basemaps = [ "dark_all", "dark_nolabels",
        "light_all", "light_nolabels"
    ]

    for (let i in basemaps) {
        let basemap_id = basemaps[i];

        world.push(new ol.layer.Tile({
            source: new ol.source.OSM({
                "url" : "https://{a-d}.basemaps.cartocdn.com/"+ basemap_id + "/{z}/{x}/{y}.png",
                "attributions" : 'Courtesy of <a href="https://carto.com">CARTO.com</a>'
                + ' using data by <a href="http://openstreetmap.org">OpenStreetMap</a>, under <a href="http://www.openstreetmap.org/copyright">ODbL</a>.',
            }),
            name: "carto_" + basemap_id,
            title: 'carto.com ' +basemap_id,
            type: 'base',
        }));
    }

    if (localStorage['bingKey'] != undefined)
        BingMapsAPIKey = localStorage['bingKey'];

    if (BingMapsAPIKey) {
        world.push(new ol.layer.Tile({
            source: new ol.source.BingMaps({
                key: BingMapsAPIKey,
                imagerySet: 'Aerial'
            }),
            name: 'bing_aerial',
            title: 'Bing Aerial',
            type: 'base',
        }));
        world.push(new ol.layer.Tile({
            source: new ol.source.BingMaps({
                key: BingMapsAPIKey,
                imagerySet: 'RoadOnDemand'
            }),
            name: 'bing_roads',
            title: 'Bing Roads',
            type: 'base',
        }));
    }

    if (ChartBundleLayers) {

        let chartbundleTypes = {
            sec: "Sectional Charts",
            enrh: "IFR Enroute High Charts"
        };

        for (let type in chartbundleTypes) {
            us.push(new ol.layer.Tile({
                source: new ol.source.TileWMS({
                    url: 'https://map.adsbexchange.com/mapproxy/wms',
                    params: {LAYERS: type},
                    projection: 'EPSG:3857',
                    attributions: 'Tiles courtesy of <a href="http://www.chartbundle.com/">ChartBundle</a>'
                }),
                name: 'chartbundle_' + type,
                title: chartbundleTypes[type],
                type: 'base',
                group: 'chartbundle'}));
        }
        chartbundleTypes = {
            tac: "Terminal Area Charts",
            hel: "Helicopter Charts",
            enrl: "IFR Enroute Low Charts",
            enra: "IFR Area Charts",
            secgrids: "Sect. w/ SAR grid",
        };

        for (let type in chartbundleTypes) {
            us.push(new ol.layer.Tile({
                source: new ol.source.TileWMS({
                    url: 'https://wms.chartbundle.com/wms',
                    params: {LAYERS: type},
                    projection: 'EPSG:3857',
                    attributions: 'Tiles courtesy of <a href="http://www.chartbundle.com/">ChartBundle</a>'
                }),
                name: 'chartbundle_' + type,
                title: chartbundleTypes[type],
                type: 'base',
                group: 'chartbundle'}));
        }
    }

    world.push(new ol.layer.Tile({
        source: new ol.source.OSM({
            "url" : "https://map.adsbexchange.com/mapproxy/tiles/1.0.0/osm/osm_grid/{z}/{x}/{y}.png",
             //'hosted by <a href="https://adsbexchange.com/">adsbexchange.com</a> '
            "attributions" : '© <a href="https://www.openstreetmap.org/copyright" target="_blank">OpenStreetMap</a>  contributors.',
        }),
        name: 'osm_adsbx',
        title: 'OSM by ADSBx',
        type: 'base',
    }));

    world.push(new ol.layer.Tile({
        source: new ol.source.XYZ({
            "url" : "https://map.adsbexchange.com/mapproxy/tiles/1.0.0/openaip/ul_grid/{z}/{x}/{y}.png",
            "attributions" : "openAIP.net",
        }),
        name: 'openaip',
        title: 'openAIP TMS',
        type: 'overlay',
        opacity: 0.7,
        visible: false,
        zIndex: 99,
        maxZoom: 14,
    }));

    let nexrad = new ol.layer.Tile({
        name: 'nexrad',
        title: 'NEXRAD',
        type: 'overlay',
        opacity: 0.3,
        visible: false,
        zIndex: 99,
        maxZoom: 14,
    });

    let refreshNexrad = function() {
        // re-build the source to force a refresh of the nexrad tiles
        let now = new Date().getTime();
        nexrad.setSource(new ol.source.XYZ({
            url : 'https://mesonet{1-3}.agron.iastate.edu/cache/tile.py/1.0.0/nexrad-n0q-900913/{z}/{x}/{y}.png?_=' + now,
            attributions: 'NEXRAD courtesy of <a href="https://mesonet.agron.iastate.edu/">IEM</a>'
        }));
    };

    refreshNexrad();
    window.setInterval(refreshNexrad, 300 * 1000);

    let dwd;
    if (enableDWD) {
        dwd = new ol.layer.Tile({
            source: new ol.source.TileWMS({
                url: 'https://maps.dwd.de/geoserver/wms',
                params: {LAYERS: 'dwd:RX-Produkt', validtime: (new Date()).getTime()},
                projection: 'EPSG:3857',
                attributions: 'Deutscher Wetterdienst (DWD)'
            }),
            name: 'radolan',
            title: 'DWD RADOLAN',
            type: 'overlay',
            opacity: 0.3,
            visible: false,
            zIndex: 99,
            maxZoom: 14,
        });


        let refreshDwd = function () {
            dwd.getSource().updateParams({"validtime": (new Date()).getTime()});
        };
        refreshDwd();
        window.setInterval(refreshDwd, 4 * 60000);

        europe.push(dwd);
    }

    us.push(nexrad);

    let createGeoJsonLayer = function (title, name, url, fill, stroke, showLabel = true) {
        return new ol.layer.Vector({
            type: 'overlay',
            title: title,
            name: name,
            zIndex: 99,
            visible: false,
            source: new ol.source.Vector({
              url: url,
              format: new ol.format.GeoJSON({
                defaultDataProjection :'EPSG:4326', 
                    projection: 'EPSG:3857'
              })
            }),
            style: function style(feature) { 
                return new ol.style.Style({
                    fill: new ol.style.Fill({
                        color : fill
                    }),
                    stroke: new ol.style.Stroke({
                        color: stroke,
                        width: 1
                    }),
                    text: new ol.style.Text({
                        text: showLabel ? feature.get("name") : "",
                        overflow: OLMap.getView().getZoom() > 5,
                        scale: 1.25,
                        fill: new ol.style.Fill({
                            color: '#000000'
                        }),
                        stroke: new ol.style.Stroke({
                            color: '#FFFFFF',
                            width: 2
                        })
                    })
                });
            }
        });
    };

    // Taken from https://github.com/alkissack/Dump1090-OpenLayers3-html
    europe.push(createGeoJsonLayer('UK Radar Corridors', 'ukradarcorridors', 'geojson/UK_Mil_RC.geojson', 'rgba(22, 171, 22, 0.3)', 'rgba(22, 171, 22, 1)'));
    europe.push(createGeoJsonLayer('UK A2A Refueling', 'uka2arefueling', 'geojson/UK_Mil_AAR_Zones.geojson', 'rgba(52, 50, 168, 0.3)', 'rgba(52, 50, 168, 1)'));
    europe.push(createGeoJsonLayer('UK AWACS Orbits', 'uka2awacsorbits', 'geojson/UK_Mil_AWACS_Orbits.geojson', 'rgba(252, 186, 3, 0.3)', 'rgba(252, 186, 3, 1)', false));

    us.push(createGeoJsonLayer('US A2A Refueling', 'usa2arefueling', 'geojson/US_A2A_refueling.geojson', 'rgba(52, 50, 168, 0.3)', 'rgba(52, 50, 168, 1)'));

    us.push(createGeoJsonLayer('US ARTCC Boundaries', 'usartccboundaries', 'geojson/US_ARTCC_boundaries.geojson', 'rgba(255, 0, 255, 0.3)', 'rgba(255, 0, 255, 1)', false));

    if (l3harris) {
        let c = 1;
        /*
        us.push(createGeoJsonLayer('L3 Area Labels Brown', 'harris' + c++, 'geojson/L3Harris/Area_Labels_Brown.geojson', 'rgba(52, 50, 168, 0.3)', 'rgba(52, 50, 168, 1)'));
        us.push(createGeoJsonLayer('L3 Area Labels Green', 'harris' + c++, 'geojson/L3Harris/Area_Labels_Green.geojson', 'rgba(52, 50, 168, 0.3)', 'rgba(52, 50, 168, 1)'));
        us.push(createGeoJsonLayer('L3 Den App GPS', 'harris' + c++, 'geojson/L3Harris/Den_Apch_Inbound_Call_Points_GPS.geojson', 'rgba(52, 50, 168, 0.3)', 'rgba(52, 50, 168, 1)'));
        us.push(createGeoJsonLayer('L3 Den App Visual', 'harris' + c++, 'geojson/L3Harris/Den_Apch_Inbound_Call_Points_Visual.geojson', 'rgba(52, 50, 168, 0.3)', 'rgba(52, 50, 168, 1)'));
        us.push(createGeoJsonLayer('L3 Harris', 'harris' + c++, 'geojson/L3Harris/L3Harris.geojson', 'rgba(52, 50, 168, 0.3)', 'rgba(52, 50, 168, 1)'));
        us.push(createGeoJsonLayer('L3 Pueblo Inbound', 'harris' + c++, 'geojson/L3Harris/Pueblo_Tower_Inbound_Call_Points_Visual.geojson', 'rgba(52, 50, 168, 0.3)', 'rgba(52, 50, 168, 1)'));
        us.push(createGeoJsonLayer('L3 Routes', 'harris' + c++, 'geojson/L3Harris/Route_Name_Labels.geojson', 'rgba(52, 50, 168, 0.3)', 'rgba(52, 50, 168, 1)'));
        */
        us.push(createGeoJsonLayer('L3 Training Areas', 'harris' + c++, 'geojson/L3Harris/L3Harris_Training_Areas.geojson', 'rgba(52, 50, 168, 0.3)', 'rgba(52, 50, 168, 1)'));
        us.push(createGeoJsonLayer('L3 USAFA Training', 'harris' + c++, 'geojson/L3Harris/USAFA_Training_Areas.geojson', 'rgba(52, 50, 168, 0.3)', 'rgba(52, 50, 168, 1)'));
        us.push(createGeoJsonLayer('L3 VNAV', 'harris' + c++, 'geojson/L3Harris/L3Harris_VNAV.geojson', 'rgba(52, 50, 168, 0.3)', 'rgba(52, 50, 168, 1)'));
    }

    if (custom.getLength() > 0) {
        layers.push(new ol.layer.Group({
            name: 'custom',
            title: 'Custom',
            layers: new ol.Collection(custom.getArray().reverse()),
        }));
    }

    if (europe.getLength() > 0) {
        layers.push(new ol.layer.Group({
            name: 'europe',
            title: 'Europe',
            layers: new ol.Collection(europe.getArray().reverse()),
            //fold: 'close',
        }));
    }

    if (us.getLength() > 0) {
        layers.push(new ol.layer.Group({
            name: 'us',
            title: 'US',
            layers: new ol.Collection(us.getArray().reverse()),
            //fold: 'close',
        }));
    }

    if (world.getLength() > 0) {
        layers.push(new ol.layer.Group({
            name: 'world',
            title: 'Worldwide',
            layers: new ol.Collection(world.getArray().reverse()),
            //fold: 'open',
        }));
    }




    return layers_group;
}