badgen-font-color/src/index.js

Badge generator with gradient support

const { badgen } = require('badgen');

// https://github.com/badgen/badgen/blob/master/src/color-presets.ts
const colorPresets = {
    green: '3C1',
    blue: '08C',
    red: 'E43',
    yellow: 'DB1',
    orange: 'F73',
    purple: '94E',
    pink: 'E5B',
    grey: '999',
    gray: '999',
    cyan: '1BC',
    black: '2A2A2A'
};

const fontColor = (str, color) => {
    const regex = /<text x="([0-9]*)" y="([0-9]*)" textLength="([0-9]*)">(.*)<\/text>\n  <\/g>/gm;
    const result = regex.exec(str)

    if (result) {
        return str.replace(result[0], `<text x="${result[1]}" y="${result[2]}" textLength="${result[3]}" fill="#${colorPresets[color] || color}">${result[4]}</text>\n  </g>`)
    }

    return str
};

const labelFontColor = (str, color) => {
    const regex = /<text x="([0-9]*)" y="([0-9]*)" textLength="([0-9]*)">(.*)<\/text>/gm;
    const result = regex.exec(str)

    if (result) {
        return str.replace(result[0], `<text x="${result[1]}" y="${result[2]}" textLength="${result[3]}" fill="#${colorPresets[color] || color}">${result[4]}</text>`)
    }

    return str
};

module.exports = function (options) {
    const svg = badgen(options)

    if (!options.labelFontColor && !options.fontColor) {
        return svg
    }

    return fontColor(labelFontColor(svg, options.labelFontColor || "fff"), options.fontColor || "fff");
};