HuasoFoundries/ig_markerfactory

export function hslaString(hslcolor) {
    if (hslcolor.a !== undefined) {
        return (
            "hsla(" +
            hslcolor.h +
            "," +
            hslcolor.s +
            "%," +
            hslcolor.l +
            "%," +
            parseFloat(hslcolor.a, 10) +
            ")"
        );
    }
    return "hsl(" + hslcolor.h + "," + hslcolor.s + "%," + hslcolor.l + "%)";
}

export function rgbaString(hexcolor) {
    if (hexcolor.a !== undefined) {
        return (
            "rgba(" +
            hexcolor.r +
            "," +
            hexcolor.g +
            "," +
            hexcolor.b +
            "," +
            parseFloat(hexcolor.a, 10) +
            ")"
        );
    }
    return "rgb(" + hexcolor.r + "," + hexcolor.g + "," + hexcolor.b + ")";
}

export function parseHalf(foo) {
    return parseInt(foo / 2, 10);
}

export function compact(array) {
    let index = -1,
        length = array ? array.length : 0,
        resIndex = 0,
        result = [];

    while (++index < length) {
        let value = array[index];
        if (value) {
            result[resIndex++] = value;
        }
    }
    return result;
}

export function omit(obj, fn) {
    var target = {};
    for (var i in obj) {
        if (fn(i)) {
            continue;
        }
        if (!Object.prototype.hasOwnProperty.call(obj, i)) {
            continue;
        }
        target[i] = obj[i];
    }
    return target;
}

export function serializeOptions(options) {
    if (typeof options !== "object") {
        return null;
    }
    var cleanOptions = omit(options, function(prop) {
            return prop.indexOf("gm_") === 0;
        }),
        sortedOpts = Object.entries(cleanOptions)
            .filter(function(item) {
                return (
                    typeof item[1] !== "function" &&
                    typeof item[1] !== "object" &&
                    item[1] !== null &&
                    typeof item[1] !== "undefined"
                );
            })
            .sort();
    return JSON.stringify(sortedOpts);
}