const fs = require('fs');
const path = require('path');

const osuEntities = [
    'avcodec-51.dll',
    'avformat-52.dll',
    'avutil-49.dll',
    'bass.dll',
    'bass_fx.dll',
    'collection.db',
    'd3dcompiler_47.dll',
    'Data',
    'Downloads',
    'libEGL.dll',
    'libGLESv2.dll',
    'Logs',
    'Microsoft.Ink.dll',
    'OpenTK.dll',
    'osu!.cfg',
    'osu!.db',
    'osu!.exe',
    'osu!auth.dll',
    'osu!gameplay.dll',
    'osu!seasonal.dll',
    'osu!ui.dll',
    'presence.db',
    'pthreadGC2.dll',
    'scores.db',
    'Skins',
    'Songs'
]

async function isValidOsuFolder(path) {
    const allFiles = await fs.promises.readdir(path);
    let matches = 0;
    for (const file of allFiles) {
        if (osuEntities.includes(file)) matches = matches + 1;
    }
    return Math.round((matches / osuEntities.length) * 100) >= 60;
}

module.exports = { isValidOsuFolder }