assertPermissions

import { assertPermissions } from '@seedcord/core';
import { PermissionFlagsBits } from 'discord-api-types/v10';

// gateway, the bits come off a discord.js member
assertPermissions({
    subject: `<@${member.id}>`,
    permissions: member.permissions.bitfield,
    scope: [PermissionFlagsBits.BanMembers]
});

// HTTP, the payload carries the member's bits as a string
assertPermissions({
    subject: `<@${this.event.member.user.id}>`,
    permissions: BigInt(this.event.member.permissions),
    scope: [PermissionFlagsBits.ManageMessages]
});

// inverse, refuse a role that carries Administrator
assertPermissions({
    subject: `<@&${role.id}>`,
    permissions: role.permissions.bitfield,
    scope: [PermissionFlagsBits.Administrator],
    inverse: true
});

import { Notice } from '@seedcord/core';

// a replacement notice takes the same three arguments the default one does
class CannotBan extends Notice {
    public constructor(
        message: string | undefined,
        private readonly subject: string,
        private readonly missing: readonly string[]
    ) {
        super(message ?? 'You cannot ban here.');
    }

    public render(): ReplyResponse {
        return { components: [new BanDenied(this.subject, this.missing).component] };
    }
}

assertPermissions({
    subject: `<@${member.id}>`,
    permissions: member.permissions.bitfield,
    scope: [PermissionFlagsBits.BanMembers],
    missingNotice: CannotBan
});