const realpath = require('fs/promises').realpath;
const stat = require('fs/promises').stat;

async function getFileInfo(file) {
    if (file === undefined) {
        throw new Error('can not check the existence of an undefined file');
    }
    const path = await resolvePath(file);
    const stats = await stat(path);
    return { path, stats };
}

async function resolvePath(file) {
    if (file === undefined) {
        throw new Error('can not resolve a path to an undefined file');
    }
    return realpath(file);
}

module.exports = {
    getFileInfo,
    resolvePath
}