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

// From the original planeObject.js:
var _generic_plane_svg = "M 0,0 " +
        "M 1.9565564,41.694305 C 1.7174505,40.497708 1.6419973,38.448747 " +
        "1.8096508,37.70494 1.8936398,37.332056 2.0796653,36.88191 2.222907,36.70461 " +
        "2.4497603,36.423844 4.087816,35.47248 14.917931,29.331528 l 12.434577," +
        "-7.050718 -0.04295,-7.613412 c -0.03657,-6.4844888 -0.01164,-7.7625804 " +
        "0.168134,-8.6194061 0.276129,-1.3160905 0.762276,-2.5869575 1.347875," +
        "-3.5235502 l 0.472298,-0.7553719 1.083746,-0.6085497 c 1.194146,-0.67053522 " +
        "1.399524,-0.71738842 2.146113,-0.48960552 1.077005,0.3285939 2.06344," +
        "1.41299352 2.797602,3.07543322 0.462378,1.0469993 0.978731,2.7738408 " +
        "1.047635,3.5036272 0.02421,0.2570284 0.06357,3.78334 0.08732,7.836246 0.02375," +
        "4.052905 0.0658,7.409251 0.09345,7.458546 0.02764,0.04929 5.600384,3.561772 " +
        "12.38386,7.805502 l 12.333598,7.715871 0.537584,0.959688 c 0.626485,1.118378 " +
        "0.651686,1.311286 0.459287,3.516442 -0.175469,2.011604 -0.608966,2.863924 " +
        "-1.590344,3.127136 -0.748529,0.200763 -1.293144,0.03637 -10.184829,-3.07436 " +
        "C 48.007733,41.72562 44.793806,40.60197 43.35084,40.098045 l -2.623567," +
        "-0.916227 -1.981212,-0.06614 c -1.089663,-0.03638 -1.985079,-0.05089 -1.989804," +
        "-0.03225 -0.0052,0.01863 -0.02396,2.421278 -0.04267,5.339183 -0.0395,6.147742 " +
        "-0.143635,7.215456 -0.862956,8.845475 l -0.300457,0.680872 2.91906,1.361455 " +
        "c 2.929379,1.366269 3.714195,1.835385 4.04589,2.41841 0.368292,0.647353 " +
        "0.594634,2.901439 0.395779,3.941627 -0.0705,0.368571 -0.106308,0.404853 " +
        "-0.765159,0.773916 L 41.4545,62.83158 39.259237,62.80426 c -6.030106,-0.07507 " +
        "-16.19508,-0.495041 -16.870991,-0.697033 -0.359409,-0.107405 -0.523792," +
        "-0.227482 -0.741884,-0.541926 -0.250591,-0.361297 -0.28386,-0.522402 -0.315075," +
        "-1.52589 -0.06327,-2.03378 0.23288,-3.033615 1.077963,-3.639283 0.307525," +
        "-0.2204 4.818478,-2.133627 6.017853,-2.552345 0.247872,-0.08654 0.247455," +
        "-0.102501 -0.01855,-0.711959 -0.330395,-0.756986 -0.708622,-2.221756 -0.832676," +
        "-3.224748 -0.05031,-0.406952 -0.133825,-3.078805 -0.185533,-5.937448 -0.0517," +
        "-2.858644 -0.145909,-5.208974 -0.209316,-5.222958 -0.06341,-0.01399 -0.974464," +
        "-0.0493 -2.024551,-0.07845 L 23.247235,38.61921 18.831373,39.8906 C 4.9432155," +
        "43.88916 4.2929558,44.057819 3.4954426,43.86823 2.7487826,43.690732 2.2007966," +
        "42.916622 1.9565564,41.694305 z";

// Rescaled from "Helicopter bottom view silhouette"
// http://www.flaticon.com/free-icon/helicopter-bottom-view-silhouette_26901
// by Freepik (http://www.flaticon.com/authors/freepik)
// licensed under CC BY 3.0 (https://creativecommons.org/licenses/by/3.0/)

// 44x64
var _rotorcraft_svg =
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        "M 18.80421,51.60336 h -0.5165 c -0.42794,0 -0.77495,0.34754 -0.77495,0.77521 v 10.84709 c 0,0.42768 0.34701,0.77469 0.77495,0.77469 h 0.5165 c 0.42768,0 0.77469,-0.34701 0.77469,-0.77469 V 52.37857 c 0,-0.42781 -0.34701,-0.77521 -0.77469,-0.77521 z";

// Modified version of "Beechcraft Bonanza V35B"
// https://commons.wikimedia.org/wiki/File:Beechcraft_Bonanza_V35B.svg
// by Kaboldy (https://commons.wikimedia.org/wiki/User:Kaboldy)
// licensed under CC BY-SA 3.0 (https://creativecommons.org/licenses/by-sa/3.0/deed.en)

// 64x49
var _beechcraft_svg = 
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// From https://commons.wikimedia.org/wiki/File:Silhouette_An-124.svg
// (which puts the original SVG in the public domain)
var _heavy_svg =
        "m28.64874,12.035023l0,8.801421l-4.585627,3.066495c0.126825,-0.257055 0.094102,-0.531839 0.095802,-0.802796l-0.015437,-3.087446l-2.230453,-0.012673l0.019009,3.599141c0.000513,0.577993 0.076338,0.923195 0.589296,1.241956l-5.533809,3.630512c0.166511,-0.256275 0.153699,-0.551367 0.153699,-0.841892l-0.005929,-3.270195l-2.160751,-0.012672l-0.006337,3.637159c0.016349,0.5301 0.096662,1.090947 0.576623,1.419379l-11.976014,7.825597c-2.106287,1.48859 -1.705322,3.044253 -1.56512,4.587637l26.645047,-9.048544l0,13.750239l0.722364,5.062875l-8.681027,6.387208c-1.239945,1.059417 -1.080616,2.171837 -0.842757,3.256969l11.278998,-2.946479c0.130159,3.116897 1.559821,3.171571 1.780561,0.006336l11.278998,2.94648c0.23786,-1.085133 0.397189,-2.197552 -0.842756,-3.256969l-8.681026,-6.387207l0.722362,-5.062875l0,-13.750239l26.645048,9.042207c0.140203,-1.543381 0.541167,-3.092711 -1.56512,-4.581301l-11.976015,-7.825597c0.47996,-0.328434 0.553938,-0.889279 0.570286,-1.419379l0,-3.63716l-2.160751,0.012673l-0.005378,3.328244c-0.002334,0.294243 0.007077,0.545056 0.178191,0.817583l-5.565189,-3.664251c0.512962,-0.318761 0.59512,-0.663963 0.595633,-1.241956l0.019009,-3.599141l-2.230454,0.012673l-0.015793,3.100403c0.001462,0.282341 -0.019949,0.535579 0.124839,0.794638l-4.614307,-3.071294l0,-8.801421c-1.111672,-11.152869 -5.489391,-11.217579 -6.735717,-0.006336z";

// From https://discussions.flightaware.com/ads-b-flight-tracking-f21/some-custom-svg-plane-icons-t37783.html
// by Peter Lowden
// licensed under CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/)

// NB: scaled so that 1 pixel is about 1.33m (0.75px = 1m)
var _a320 = {
        key: "a320",
        scale: 0.60 * 0.75,
        size: [64, 64],
        anchor: [32, 28],
        path: "m 32,1 2,1 2,3 0,18 4,1 0,-4 3,0 0,5 17,6 0,3 -15,-2 -9,0 0,12 -2,6 7,3 0,2 -8,-1 -1,2 -1,-2 -8,1 0,-2 7,-3 -2,-6 0,-12 -9,0 -15,2 0,-3 17,-6 0,-5 3,0 0,4 4,-1 0,-18 2,-3 2,-1z"
};

var _b777 = {
        key: "b777",
        scale: 0.80 * 0.75,
        size: [64, 64],
        anchor: [32, 32],
        path: "m 32,1 2,1 1,2 0,20 4,4 0,-4 3,0 0,4 -1,2 17,12 0,2 -16,-5 -7,0 0,13 -1,5 7,5 0,2 -8,-2 -1,2 -1,-2 -8,2 0,-2 7,-5 -1,-5 0,-13 -7,0 -16,5 0,-2 17,-12 -1,-2 0,-4 3,0 0,4 4,-4 0,-20 1,-2 2,-1z"
};

var _dash8 = {
        key: "dash8",
        scale: 0.60 * 0.75,
        size: [64, 64],
        anchor: [32, 30],
        path: "m 32,1 3,4 0,20 4,0 0,-5 1,-1 1,1 0,5 17,2 0,3 -17,2 0,3 -1,1 -1,-1 0,-3 -4,0 0,15 -1,8 6,0 1,1 0,3 -8,0 -1,1 -1,-1 -8,0 0,-3 1,-1 6,0 -1,-8 0,-15 -4,0 0,3, -1,1 -1,-1 0,-3 -17,-2 0,-3 17,-2 0,-5 1,-1 1,1 0,5 4,0 0,-20 3,-4z"
};

var _b200 = {
        key: "b200",
        scale: 0.55 * 0.75,
        size: [64, 64],
        anchor: [32, 19],
        path: "m 32,1 1,0 1,2 1,4 0,5 5,0 0,-5 -1,-1 2,-2 2,2 -1,1 0,5 17,2 0,3 -17,3 0,1 -2,0 0,-1 -5,0 0,5 -2,8 6,3 0,2 -6,-1 -1,0 -6,1 0,-2 6,-3 -2,-8 0,-5 -5,0 0,1, -2,0 0,-1 -17,-3 0,-3 17,-2 0,-5 -1,-1 2,-2 2,2 -1,1 0,5 5,0 0,-5 1,-4 1,-2 z"
};

var _g650 = {
        key: "g650",
        scale: 0.58 * 0.75,
        size: [64, 64],
        anchor: [32, 26],
        path: "m 32,1 1,0 1,2 1,4 0,10 21,17 0,5 -2,-2 -16,-8 -3,0 0,3 2,0 1,1 0,5 -1,1 0,3 -2,0 0,1 7,5 0,3 -9,-3 -1,0 -9,3 0,-3 7,-5 0,-1 -2,0 0,-3 -1,-1 0,-5 1,-1 2,0 0,-3 -3,0 -16,8 -2,2 0,-5 21,-17 0,-10 1,-4 1,-2z"
};

var _c130 = {
        key: "c130",
        scale: 0.75 * 0.75,
        size: [64, 64],
        anchor: [32, 17],
        path: "m 31,1 1,0 1,1 1,2 0,8 3,0 0,-3 1,-1 1,1 0,3 6,0 0,-3 1,-1 1,1 0,3 10,1 0,2 -1,1 -17,3 -5,0 0,10 -1,1 8,2 0,1 -1,1 -8,0 -1,1 -1,-1 -8,0 -1,-1 0,-1 8,-2 -1,-1 0,-10 -5,0 -17,-3 -1,-1 0,-2 10,-1 0,-3 1,-1 1,1 0,3 6,0 0,-3 1,-1 1,1 0,3 3,0 0,-8 1,-2 1,-1 z"
};

var _balloon = {
        key: "balloon",
        scale: 0.50,
        size: [64, 64],
        anchor: [32, 32],
        path: "m 27,1 10,0 3,1 3,1 1,1 2,1 6,6 1,2 1,1 1,3 1,3 0,10 -1,3 -1,3 -1,1 -1,2 -6,6 -2,1 -1,1 -2,1 -2,1 -2,8 -1,0 2,-8 -3,1 -6,0 -3,-1 2,8 9,0 0,6 -10,0 0,-6 -2,-8 -2,-1 -2,-1 -1,-1 -2,-1 -6,-6 -1,-2 -1,-1 -1,-3 -1,-3 0,-10 1,-3 1,-3 1,-1 1,-2 6,-6 2,-1 1,-1 3,-1 3,-1 z",
        noRotate: true,
        markerRadius: 32
};

var _helicopter = {
        key : "helicopter",
        scale : 0.50,
        size : [64, 64],
        anchor : [22, 32],
        path : _rotorcraft_svg
};

var _single_prop = {
        key : "single_prop",
        scale : 0.30,
        size : [64, 64],
        anchor : [32, 25],
        path : _beechcraft_svg
};

// by Oliver Jowett <oliver@mutability.co.uk>
// licensed under CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/)
var _a380 = {
        key: "a380",
        scale: 1.26 * 0.75,
        size: [64, 64],
        anchor: [32, 30],
        path: "m 32,59 -1,-4 -4,1 -7,3 -1,0 1,-3 1,-1 7,-6 2,-2 -1,-5 0,-9 -1,-2 -2,0 -6,2 -5,2 -5,2 -9,4 0,1 0,-3 1,-2 9,-7 -1,-1 0,-4 1,-1 1,0 1,1 0,3 1,0 5,-4 0,-5 1,-1 1,0 1,1 0,3 6,-5 1,-2 0,-7 1,-5 1,-2 1,-1 1,1 1,2 1,5 0,7 1,2 6,5 0,-3 1,-1 1,0 1,1 0,5 5,4 1,0 0,-3 1,-1 1,0 1,1 0,4 -1,1 9,7 1,2 0,3 0,-1 -9,-4 -5,-2 -5,-2 -6,-2 -2,0 -1,2 0,9 -1,5 2,2 7,6 1,1 1,3 -1,0 -7,-3 -4,-1 -1,4 z"
};

var _b738 = {
        key: "b738",
        scale: 0.70 * 0.75,
        size: [64, 64],
        anchor: [32, 32],
        path: "m 32,61 -1,-1 -9,2 -2,1 0,-2 9,-6 1,-1 -1,-9 0,-11 -7,0 -1,1 0,-1 -3,1 -1,1 0,-1 -3,1 -9,3 -1,1 0,-2 1,-2 17,-9 1,-1 -1,-2 0,-3 1,-1 2,0 1,1 0,3 3,-2 0,-13 1,-5 1,-3 1,-1 1,1 1,3 1,5 0,13 3,2 0,-3 1,-1 2,0 1,1 0,3 -1,2 1,1 17,9 1,2 0,2 -1,-1 -9,-3 -3,-1 0,1 -1,-1 -3,-1 0,1 -1,-1 -7,0 0,11 -1,9 1,1 9,6 0,2 -2,-1 -9,-2 -1,1 z"
};

var TypeDesignatorIcons = {
        'A318': _a320, // shortened a320
        'A319': _a320, // shortened a320
        'A320': _a320,
        'A321': _a320, // stretched a320

        'A388': _a380,

        // dubious since these are old-generation 737s
        // but the shape is similar
        'B731': _b738,
        'B732': _b738,
        'B733': _b738,
        'B734': _b738,
        'B735': _b738,

        // these probably need reworking
        // since they vary in length
        'B736': _b738,
        'B737': _b738,
        'B738': _b738,
        'B739': _b738,

        'B772': _b777, // all pretty similar except for length
        'B77W': _b777,
        'B773': _b777,
        'B77L': _b777,

        'DH8A': _dash8,
        'DH8B': _dash8,
        'DH8C': _dash8,
        'DH8D': _dash8,

        'BE20': _b200,

        'GLF5': _g650, // close enough
        'GLF6': _g650,

        'C130': _c130,
        'C30J': _c130
};

// Maps ICAO aircraft type description codes (e.g. "L2J") to aircraft icons. This is used if the ICAO type designator (e.g. "B731")
// cannot be found in the TypeDesignatorIcons mappings. The key can be one of the following:
//   - Single character: The basic aircraft type letter code (e.g. "H" for helicopter).
//   - Three characters: The ICAO type description code (e.g. "L2J" for landplanes with 2 jet engines).
//   - Five characters: The ICAO type description code concatenated with the wake turbulence category code, separated by
//     a dash (e.g. "L2J-M").

var TypeDescriptionIcons = {
        'H': _helicopter,

        'L1J': _g650,
        'L1P': _single_prop,
        'L1T': _single_prop,

        'L2P': _b200,
        'L2T': _b200,

        'L2J-L': _g650,
        'L2J-M': _a320,
        'L2J-H': _b777,
};

var CategoryIcons = {
        "A1" : _single_prop,

        "A2" : {
                key : "A2",
                scale : 0.35,
                size : [64, 64],
                anchor : [32, 32],
                path : _generic_plane_svg
        },

        "A3" : {
                key : "A3",
                scale : 0.40,
                size : [64, 64],
                anchor : [32, 32],
                path : _generic_plane_svg
        },

        "A5" : {
                key : "A5",
                scale : 0.73,
                size : [64, 64],
                anchor : [32, 32],
                path : _heavy_svg
        },

        "A7" : _helicopter,

        "B2" : _balloon
};

var DefaultIcon = {
        key : "default",
        scale : 0.4,
        size : [64, 64],
        anchor : [32, 32],
        path : _generic_plane_svg
};

function getBaseMarker(category, typeDesignator, typeDescription, wtc) {
        if (typeDesignator in TypeDesignatorIcons) {
                return TypeDesignatorIcons[typeDesignator];
        }

        if (typeDescription !== undefined && typeDescription !== null && typeDescription.length === 3) {
                if (wtc !== undefined && wtc !== null && wtc.length === 1) {
                        var typeDescriptionWithWtc = typeDescription + "-" + wtc;
                        if (typeDescriptionWithWtc in TypeDescriptionIcons) {
                                return TypeDescriptionIcons[typeDescriptionWithWtc];
                        }
                }

                if (typeDescription in TypeDescriptionIcons) {
                        return TypeDescriptionIcons[typeDescription];
                }

                var basicType = typeDescription.charAt(0);
                if (basicType in TypeDescriptionIcons) {
                        return TypeDescriptionIcons[basicType];
                }
        }

        if (category in CategoryIcons) {
                return CategoryIcons[category];
        }

        return DefaultIcon;
}

function svgPathToSvg(path, size, stroke, width, fill, transparentBorderWidth) {
        var svg = '<svg width="' + size[0] + 'px" height="' + size[1] + 'px" version="1.1" xmlns="http://www.w3.org/2000/svg">';
        svg += '<path d="' + path + '"';
        if (stroke !== null) {
                svg += ' stroke="' + stroke + '"';
        }
        if (width !== null) {
                svg += ' stroke-width="' + width + '"';
        }
        if (fill !== null) {
                svg += ' fill="' + fill + '"';
        }
        svg += '/>';
        // Add a transparent border to increase the size of the plane marker clickable area.
        if (transparentBorderWidth > 0) {
                // If the border is 100% transparent, OpenLayers will ignore it completely - see
                // https://github.com/openlayers/ol3/issues/2961. The stroke opacity is set to 1% as a workaround. 
                // This is transparent enough to be invisible to the user.
                svg += '<path d="' + path + '" fill="none" stroke="#FFFFFF" stroke-opacity="0.01" stroke-width="' + transparentBorderWidth + '" />';
        }
        svg += '</svg>';
        return svg;
}


function svgPathToURI(path, size, stroke, width, fill, transparentBorderWidth) {
        return "data:image/svg+xml;base64," + btoa(svgPathToSvg(path, size, stroke, width, fill, transparentBorderWidth));
}