From 6673d3c29472affc72e1a5cf11e4372632652eec Mon Sep 17 00:00:00 2001
From: Wroclaw <wroclaw223@outlook.com>
Date: Mon, 24 Jul 2023 03:06:33 +0200
Subject: [PATCH] Fix crash when replying to request where bot cannot reply

---
 src/execution.ts | 16 +++++++++++++++-
 1 file changed, 15 insertions(+), 1 deletion(-)

diff --git a/src/execution.ts b/src/execution.ts
index 2be19cd..057d80e 100644
--- a/src/execution.ts
+++ b/src/execution.ts
@@ -1,4 +1,4 @@
-import DiscordApi from "discord.js";
+import DiscordApi, { GuildTextBasedChannel } from "discord.js";
 
 import { database, openai } from "./index";
 import Moderation from "./moderation";
@@ -115,6 +115,15 @@ function requestReply(
   }
 }
 
+/**
+ * Checks if the request can be replied in a channel
+ * @param request the request to check
+ * @returns if the request can be replied to
+ */
+function canReplyToRequest(request: apiRequest) {
+  return !(request.guild?.members.me?.permissionsIn(request.channel as GuildTextBasedChannel).has("SendMessages") ?? true);
+}
+
 /**
  * Check and queues up the request and runs it if there is nothing in queue.
  * @param request the message to check and queue
@@ -130,6 +139,8 @@ export async function queueRequest(request: apiRequest) {
     return;
   }
 
+  if (!canReplyToRequest(request)) return;
+
   const userLimit = await getUserLimit(getAuthor(request), request.createdAt);
 
   if (userLimit !== false && userLimit.remaining <= 0) {
@@ -208,6 +219,9 @@ async function executeFromQueue(channel: string) {
   const message = channelQueue.at(0) as RequestMessage;
   let functionRanCounter = 0;
 
+  // ignore if we can't even send anything to reply
+  if (!canReplyToRequest(message)) return;
+
   try {
     let messages: DiscordApi.Collection<string, DiscordApi.Message> = await message.channel.messages.fetch({ limit: config.limits.messages, cache: false });