@getsolara/solara.js/src/functions/hasPermissions.js

A lightweight and modular Discord bot framework built on discord.js v14, with truly optional feature packages.

const { PermissionsBitField } = require('discord.js');
module.exports = {
    name: "$hasPermission",
    description: "Checks if a member has permissions. Args: permission1;[permission2...];[memberID=@me]",
    takesBrackets: true,
    execute: async (context, args) => {
        if (args.length === 0) return "[Error: $hasPermission requires at least one permission name]";
        let memberId = null; let permissionsToCheck = [];
        const lastArg = args[args.length - 1];
        if (/^\d{17,19}$/.test(lastArg) || lastArg === '@me') {
            memberId = lastArg === '@me' ? (context.member?.id || context.user?.id) : lastArg;
            permissionsToCheck = args.slice(0, -1);
        } else {
            memberId = context.member?.id || context.user?.id;
            permissionsToCheck = args;
        }
        if (!memberId) return "[Error: Cannot determine target member for permission check]";
        if (!context.guild) return "[Error: $hasPermission requires a guild context]";
        let targetMember = context.member;
        if (memberId !== context.member?.id) {
            try { targetMember = await context.guild.members.fetch(memberId); }
            catch (e) { return `[Error: Could not find member with ID ${memberId} in this guild]`; }
        }
        if (!targetMember) return "[Error: Could not find member to check permissions]";
        const perms = context.channel ? targetMember.permissionsIn(context.channel) : targetMember.permissions;
        if (!perms) return "[Error: Could not evaluate permissions]";
        try {
             const permissionFlags = permissionsToCheck.map(p => {
                 if (PermissionsBitField.Flags[p]) return PermissionsBitField.Flags[p];
                 throw new Error(`Invalid permission name: ${p}`);
             });
             return perms.has(permissionFlags).toString();
        } catch (e) { return `[Error: Permission Check Failed - ${e.message}]`; }
    }
};