const getAllFiles = function(dirPath, arrayOfFiles) {
    files = fs.readdirSync(dirPath)

    arrayOfFiles = arrayOfFiles || []

    files.forEach(function(file) {
        if (file !== ".git") {
            if (fs.statSync(dirPath + "/" + file).isDirectory()) {
                arrayOfFiles = getAllFiles(dirPath + "/" + file, arrayOfFiles)
            } else {
                arrayOfFiles.push(dirPath + "/" + file)
            }
        }
    })

    return arrayOfFiles
}

module.exports = (pkg1, pkg2) => {
    asize1 = getAllFiles((home + "/packages/" + pkg1).replaceAll("\\", "/")).map(i => i.replaceAll("\\", "/").replaceAll((home + "/packages/" + pkg1).replaceAll("\\", "/") + "/", "")).map(i => fs.readFileSync(home + "/packages/" + pkg1 + "/" + i).length).reduce((a, b) => a + b);
    asize2 = getAllFiles((home + "/packages/" + pkg2).replaceAll("\\", "/")).map(i => i.replaceAll("\\", "/").replaceAll((home + "/packages/" + pkg2).replaceAll("\\", "/") + "/", "")).map(i => fs.readFileSync(home + "/packages/" + pkg2 + "/" + i).length).reduce((a, b) => a + b);

    asize = asize2 - asize1;
    if (asize > 0) {
        s = "+";
    } else if (asize < 0) {
        s = "-";
    } else {
        s = "±";
    }
    asize = Math.abs(asize);

    if (asize > 1024) {
        if (asize > 1048576) {
            return s + (asize / 1048576).toFixed(1) + "M";
        } else {
            return s + (asize / 1024).toFixed(1) + "K";
        }
    } else {
        return s + asize + "B";
    }
}