More partials for reactions, add removeUserReaction util function

src/main.js

@@ -146,7 +146,7 @@ const bot = new Client({
     GatewayIntentBits.DirectMessages,
     GatewayIntentBits.DirectMessageReactions,
   ],
-  partials: [Partials.Channel],
+  partials: [Partials.Message, Partials.Channel, Partials.Reaction, Partials.User],
 });
 
 bot.on("ready", async () => {
@@ -211,6 +211,9 @@ bot.on("messageReactionAdd", async (reaction, user) => {
     // If the message this reaction belongs to was removed, the fetching might result in an API error which should be handled
     try {
       await reaction.fetch();
+      if (reaction.message.partial) {
+        await reaction.message.fetch();
+      }
     } catch (error) {
       utils.logger.error(
         `Something went wrong when fetching the message: ${error}`

src/utils.js

@@ -184,6 +184,17 @@ function createEmbed(options = DEFAULT_EMBED) {
     .addFields(...options["additionalFields"]);
 }
 
+async function removeUserReaction(message, user, emojiName) {
+  const reactions = message.reactions.cache.filter(r => r.users.cache.has(user.id) && r.emoji.name === emojiName);
+  for (const r of reactions.values()) {
+    try {
+      await r.users.remove(user.id)
+    } catch (e) {
+      // Do nothing
+    }
+  }
+}
+
 module.exports = {
   SECOND,
   MINUTE,
@@ -195,4 +206,5 @@ module.exports = {
   createEmbed,
   logger,
   plugins,
+  removeUserReaction
 };