selmerBot/commands/admin/unnlockchannel.js

const { checkRole } = require('./verify.js');
const { Constants } = require('discord.js');


module.exports = {
    name: 'unlock',
    description: 'Unlock a channel',
    execute(interaction, Discord, Client, bot) {
        const arg = interaction.options.data[0];
        const guild = bot.guilds.cache.get(interaction.guildId);

        if (!checkRole(bot, guild, interaction.user.id)) { return message.reply('Insufficient Permissions!'); }

        var channel;
        if (arg) {
            channel = arg.channel;
        } else {
            channel = interaction.channel;
        }

        let role = interaction.guild.roles.cache.find(r => r.name === "@everyone");

        channel.permissionOverwrites.edit(role.id, {
            VIEW_CHANNEL: true,
            SEND_MESSAGES: true,
            READ_MESSAGE_HISTORY: true,
            ATTACH_FILES: true
        });

        interaction.reply(`${channel} has been unlocked!`);
    },
    options: [{name: 'channel', description: 'The channel to unlock (defaults to current channel)', type: Constants.ApplicationCommandOptionTypes.CHANNEL, required: false}]
}