function Options(style, size, color, parentStyle, parentSize) {
    this.style = style;
    this.color = color;
    this.size = size;

    if (parentStyle === undefined) {
        parentStyle = style;
    }
    this.parentStyle = parentStyle;

    if (parentSize === undefined) {
        parentSize = size;
    }
    this.parentSize = parentSize;
}

Options.prototype.withStyle = function(style) {
    return new Options(style, this.size, this.color, this.style, this.size);
};

Options.prototype.withSize = function(size) {
    return new Options(this.style, size, this.color, this.style, this.size);
};

Options.prototype.withColor = function(color) {
    return new Options(this.style, this.size, color, this.style, this.size);
};

Options.prototype.reset = function() {
    return new Options(
        this.style, this.size, this.color, this.style, this.size);
};

var colorMap = {
    "katex-blue": "#6495ed",
    "katex-orange": "#ffa500",
    "katex-pink": "#ff00af",
    "katex-red": "#df0030",
    "katex-green": "#28ae7b",
    "katex-gray": "gray",
    "katex-purple": "#9d38bd"
};

Options.prototype.getColor = function() {
    return colorMap[this.color] || this.color;
};

module.exports = Options;