✨ [Channels] messages bulk delete

src/routes/api/v8/channels/#channel_id/messages/bulk-delete.ts

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+import { Router } from "express";
+import { ChannelModel, getPermission, MessageDeleteBulkEvent, MessageModel } from "fosscord-server-util";
+import { HTTPError } from "lambert-server";
+import Config from "../../../../../../util/Config";
+import { emitEvent } from "../../../../../../util/Event";
+import { check } from "../../../../../../util/instanceOf";
+
+const router: Router = Router();
+
+export default router;
+// TODO: should this request fail, if you provide messages older than 14 days/invalid ids?
+// https://discord.com/developers/docs/resources/channel#bulk-delete-messages
+router.post("/", check({ messages: [BigInt] }), async (req, res) => {
+	const channel_id = BigInt(req.params.channel_id);
+	const channel = await ChannelModel.findOne({ id: channel_id }, { permission_overwrites: true, guild_id: true }).exec();
+	if (!channel?.guild_id) throw new HTTPError("Can't bulk delete dm channel messages", 400);
+
+	const permission = await getPermission(req.userid, channel?.guild_id, channel_id, { channel });
+	if (!permission.has("MANAGE_MESSAGES")) throw new HTTPError("You are missing the MANAGE_MESSAGES permissions");
+
+	const { maxBulkDelete } = Config.get().limits.message;
+
+	const { messages } = req.body as { messages: bigint[] };
+	if (messages.length < 2) throw new HTTPError("You must at least specify 2 messages to bulk delete");
+	if (messages.length > maxBulkDelete) throw new HTTPError(`You cannot delete more than ${maxBulkDelete} messages`);
+
+	await MessageModel.deleteMany({ id: { $in: messages } }).exec();
+	await emitEvent({
+		event: "MESSAGE_DELETE_BULK",
+		channel_id,
+		data: { ids: messages, channel_id, guild_id: channel.guild_id },
+	} as MessageDeleteBulkEvent);
+
+	res.status(204).send();
+});