const fs = require('fs');

module.exports = {
    async writeFile(path, content, options)
    {
        return await new Promise((ok, no) =>
        {
            fs.writeFile(path, content, options, err => err ? no(err) : ok());
        });
    },

    async rename(from, to)
    {
        return await new Promise((ok, no) =>
        {
            fs.rename(from, to, err => err ? no(err) : ok());
        });
    },

    async mkdir(path, options)
    {
        return await new Promise((ok, no) =>
        {
            fs.mkdir(path, options, err => err ? no(err) : ok());
        });
    },

    async exists(path)
    {
        return await new Promise((ok, no) =>
        {
            fs.access(path, fs.constants.R_OK, err => err ? (err.code == 'ENOENT' ? ok(false) : no(err)) : ok(true));
        });
    },

    async is_writable(path)
    {
        return await new Promise((ok, no) =>
        {
            fs.access(path, fs.constants.R_OK | fs.constants.W_OK, err => ok(!err));
        });
    },
};