Initial commit

src/utils/partial-utils.ts

@@ -0,0 +1,88 @@
+import {
+    DiscordAPIError,
+    RESTJSONErrorCodes as DiscordApiErrors,
+    Message,
+    MessageReaction,
+    PartialMessage,
+    PartialMessageReaction,
+    PartialUser,
+    User,
+} from 'discord.js';
+
+const IGNORED_ERRORS = [
+    DiscordApiErrors.UnknownMessage,
+    DiscordApiErrors.UnknownChannel,
+    DiscordApiErrors.UnknownGuild,
+    DiscordApiErrors.UnknownUser,
+    DiscordApiErrors.UnknownInteraction,
+    DiscordApiErrors.MissingAccess,
+];
+
+export class PartialUtils {
+    public static async fillUser(user: User | PartialUser): Promise<User> {
+        if (user.partial) {
+            try {
+                return await user.fetch();
+            } catch (error) {
+                if (
+                    error instanceof DiscordAPIError &&
+                    typeof error.code == 'number' &&
+                    IGNORED_ERRORS.includes(error.code)
+                ) {
+                    return;
+                } else {
+                    throw error;
+                }
+            }
+        }
+
+        return user as User;
+    }
+
+    public static async fillMessage(msg: Message | PartialMessage): Promise<Message> {
+        if (msg.partial) {
+            try {
+                return await msg.fetch();
+            } catch (error) {
+                if (
+                    error instanceof DiscordAPIError &&
+                    typeof error.code == 'number' &&
+                    IGNORED_ERRORS.includes(error.code)
+                ) {
+                    return;
+                } else {
+                    throw error;
+                }
+            }
+        }
+
+        return msg as Message;
+    }
+
+    public static async fillReaction(
+        msgReaction: MessageReaction | PartialMessageReaction
+    ): Promise<MessageReaction> {
+        if (msgReaction.partial) {
+            try {
+                msgReaction = await msgReaction.fetch();
+            } catch (error) {
+                if (
+                    error instanceof DiscordAPIError &&
+                    typeof error.code == 'number' &&
+                    IGNORED_ERRORS.includes(error.code)
+                ) {
+                    return;
+                } else {
+                    throw error;
+                }
+            }
+        }
+
+        msgReaction.message = await this.fillMessage(msgReaction.message);
+        if (!msgReaction.message) {
+            return;
+        }
+
+        return msgReaction as MessageReaction;
+    }
+}