Bulk delete stopping at 50

const handleBulkDelete = async (
    channel: TextChannel,
    amountToDelete: number,
    target?: GuildMember
) => {
    const messagesToDelete = await channel.messages.fetch();
    const filteredMessages: Message[] = [];
    if (target) {
        let i = 0;
        messagesToDelete.filter((msg: Message) => {
            if (msg.author.id === target.id && i < amountToDelete) {
                filteredMessages.push(msg);
                i++;
            }
        });
        if (filteredMessages.length === 0) return 0;
    } else {
        filteredMessages.push(...messagesToDelete.first(amountToDelete));
    }
    if (filteredMessages.length === 0) return 0;
    await channel.bulkDelete(filteredMessages, true);
    return filteredMessages.length;
};