message: fix:  add to thread perm checks
diff: import { cacheHandlers } from "../../../cache.ts";
  import { rest } from "../../../rest/rest.ts";
  -import { ChannelTypes } from "../../../types/channels/channel_types.ts";
  import { Errors } from "../../../types/discordeno/errors.ts";
  import { endpoints } from "../../../util/constants.ts";
  -import { botHasChannelPermissions } from "../../../util/permissions.ts";
  +import { requireBotChannelPermissions } from "../../../util/permissions.ts";
  -/** Adds the current user to a thread. Returns a 204 empty response on success. Also requires the thread is not archived. Fires a Thread Members Update Gateway event.
  - * Adds another user to a thread. Requires the ability to send messages in the thread. Also requires the thread is not archived. Returns a 204 empty response on success. Fires a Thread Members Update Gateway event.
  - * @param userId the user to add to the thread defaults to bot
  +/** Adds the bot to a thread. When a user id is provided, it adds that user to the thread. User id requires the ability to send messages in the thread. Both requires the thread is not archived.
  */
  -export async function addToThread(channelId: bigint, userId?: bigint) {
  - const channel = await cacheHandlers.get("channels", channelId);
  - if (channel) {
  - if (
  - ![ChannelTypes.GuildNewsThread, ChannelTypes.GuildPivateThread, ChannelTypes.GuildPublicThread].includes(
  - channel.type
  - )
  - ) {
  - throw new Error(Errors.NOT_A_THREAD_CHANNEL);
  +export async function addToThread(threadId: bigint, userId?: bigint) {
  + const thread = await cacheHandlers.get("threads", threadId);
  + if (thread) {
  + if (thread.archived) {
  + throw new Error(Errors.CANNOT_ADD_USER_TO_ARCHIVED_THREADS);
  }
  - if (!(await botHasChannelPermissions(channel, ["MANAGE_THREADS"])) && !channel.member) {
  - throw new Error(Errors.HAVE_TO_BE_PART_OF_THE_THREAD_OR_A_THREAD_MODERATOR_TO_ADD_OTHERS_TO_A_THREAD);
  + // If a user id is provided SEND_MESSAGES is required.
  + if (userId) {
  + const channel = await cacheHandlers.get("channels", thread.channelId);
  + // TODO: does MANAGE_THREADS override this????
  + if (channel) await requireBotChannelPermissions(channel, ["SEND_MESSAGES"]);
  }
  }
  - return await rest.runMethod(
  - "put",
  - userId ? endpoints.THREAD_USER(channelId, userId) : endpoints.THREAD_ME(channelId)
  - );
  + return await rest.runMethod("put", userId ? endpoints.THREAD_USER(threadId, userId) : endpoints.THREAD_ME(threadId));
  }
  