feat: ♻️ centralized error classes

I have cleaned up some code by moving some regular used throw new messages to a error class file

src/commands/credits/groups/bonus/subcommands/daily/index.ts

@@ -9,6 +9,10 @@ import CreditsManager from "../../../../../../handlers/CreditsManager";
 import prisma from "../../../../../../handlers/prisma";
 import generateCooldownName from "../../../../../../helpers/generateCooldownName";
 import deferReply from "../../../../../../utils/deferReply";
+import {
+  GuildNotFoundError,
+  UserNotFoundError,
+} from "../../../../../../utils/errors";
 import sendResponse from "../../../../../../utils/sendResponse";
 
 const cooldownManager = new CooldownManager();
@@ -22,18 +26,8 @@ export const execute = async (interaction: ChatInputCommandInteraction) => {
   const { guild, user } = interaction;
 
   await deferReply(interaction, false);
-
+  if (!guild) throw new GuildNotFoundError();
-  if (!guild) {
+  if (!user) throw new UserNotFoundError();
-    throw new Error(
-      "Oops! It looks like you're not part of a guild. Join a guild to embark on this adventure!"
-    );
-  }
-
-  if (!user) {
-    throw new Error(
-      "Oops! We couldn't find your user information. Please try again or contact support for assistance."
-    );
-  }
 
   const guildCreditsSettings = await prisma.guildCreditsSettings.upsert({
     where: { id: guild.id },

src/commands/credits/groups/bonus/subcommands/monthly/index.ts

@@ -9,6 +9,10 @@ import CreditsManager from "../../../../../../handlers/CreditsManager";
 import prisma from "../../../../../../handlers/prisma";
 import generateCooldownName from "../../../../../../helpers/generateCooldownName";
 import deferReply from "../../../../../../utils/deferReply";
+import {
+  GuildNotFoundError,
+  UserNotFoundError,
+} from "../../../../../../utils/errors";
 import sendResponse from "../../../../../../utils/sendResponse";
 
 const cooldownManager = new CooldownManager();
@@ -25,17 +29,8 @@ export const execute = async (interaction: ChatInputCommandInteraction) => {
 
   await deferReply(interaction, false);
 
-  if (!guild) {
+  if (!guild) throw new GuildNotFoundError();
-    throw new Error(
+  if (!user) throw new UserNotFoundError();
-      "Oops! It looks like you're not part of a guild. Join a guild to embark on this adventure!"
-    );
-  }
-
-  if (!user) {
-    throw new Error(
-      "Oops! We couldn't find your user information. Please try again or contact support for assistance."
-    );
-  }
 
   const guildCreditsSettings = await prisma.guildCreditsSettings.upsert({
     where: { id: guild.id },

src/commands/credits/groups/bonus/subcommands/weekly/index.ts

@@ -9,6 +9,10 @@ import CreditsManager from "../../../../../../handlers/CreditsManager";
 import prisma from "../../../../../../handlers/prisma";
 import generateCooldownName from "../../../../../../helpers/generateCooldownName";
 import deferReply from "../../../../../../utils/deferReply";
+import {
+  GuildNotFoundError,
+  UserNotFoundError,
+} from "../../../../../../utils/errors";
 import sendResponse from "../../../../../../utils/sendResponse";
 
 const cooldownManager = new CooldownManager();
@@ -24,18 +28,8 @@ export const execute = async (interaction: ChatInputCommandInteraction) => {
   const { guild, user } = interaction;
 
   await deferReply(interaction, false);
-
+  if (!guild) throw new GuildNotFoundError();
-  if (!guild) {
+  if (!user) throw new UserNotFoundError();
-    throw new Error(
-      "Oops! It looks like you're not part of a guild. Join a guild to embark on this adventure!"
-    );
-  }
-
-  if (!user) {
-    throw new Error(
-      "Oops! We couldn't find your user information. Please try again or contact support for assistance."
-    );
-  }
 
   const guildCreditsSettings = await prisma.guildCreditsSettings.upsert({
     where: { id: guild.id },

src/commands/credits/subcommands/balance/index.ts

@@ -7,6 +7,7 @@ import {
 } from "discord.js";
 import CreditsManager from "../../../../handlers/CreditsManager";
 import deferReply from "../../../../utils/deferReply";
+import { GuildNotFoundError } from "../../../../utils/errors";
 import sendResponse from "../../../../utils/sendResponse";
 
 const creditsManager = new CreditsManager();
@@ -26,11 +27,9 @@ export const builder = (command: SlashCommandSubcommandBuilder) => {
 
 export const execute = async (interaction: ChatInputCommandInteraction) => {
   const { options, user, guild } = interaction;
-  await deferReply(interaction, false);
 
-  if (!guild) {
+  await deferReply(interaction, false);
-    throw new Error("This command can only be used in guild environments. ❌");
+  if (!guild) throw new GuildNotFoundError();
-  }
 
   const checkAccount = options.getUser("account") || user;
   const creditAccount = await creditsManager.balance(guild, checkAccount);

src/commands/credits/subcommands/gift/index.ts

@@ -9,6 +9,7 @@ import {
 import CreditsManager from "../../../../handlers/CreditsManager";
 import upsertGuildMember from "../../../../helpers/upsertGuildMember";
 import deferReply from "../../../../utils/deferReply";
+import { GuildNotFoundError } from "../../../../utils/errors";
 import sendResponse from "../../../../utils/sendResponse";
 
 const creditsManager = new CreditsManager();
@@ -39,17 +40,15 @@ export const builder = (command: SlashCommandSubcommandBuilder) => {
 };
 
 export const execute = async (interaction: ChatInputCommandInteraction) => {
-  await deferReply(interaction, true);
-
   const { options, user, guild } = interaction;
-  const recipient = options.getUser("account");
+
+  await deferReply(interaction, true);
+  if (!guild) throw new GuildNotFoundError();
+
+  const recipient = options.getUser("account", true);
   const amount = options.getInteger("amount");
   const message = options.getString("message");
 
-  if (!guild || !user || !recipient) {
-    throw new Error("Invalid interaction data");
-  }
-
   if (typeof amount !== "number" || amount < 1) {
     throw new Error("Please enter a valid number of credits to gift");
   }

src/commands/credits/subcommands/top/index.ts

@@ -6,6 +6,7 @@ import {
 } from "discord.js";
 import CreditsManager from "../../../../handlers/CreditsManager";
 import deferReply from "../../../../utils/deferReply";
+import { GuildNotFoundError } from "../../../../utils/errors";
 import sendResponse from "../../../../utils/sendResponse";
 
 const creditsManager = new CreditsManager();
@@ -20,10 +21,7 @@ export const execute = async (interaction: CommandInteraction) => {
   const { guild, client, user } = interaction;
 
   await deferReply(interaction, false);
-
+  if (!guild) throw new GuildNotFoundError();
-  if (!guild) {
-    throw new Error("Unable to find the guild.");
-  }
 
   const topTen = await creditsManager.topUsers(guild, 10);
 

src/commands/credits/subcommands/work/index.ts

@@ -10,6 +10,7 @@ import CreditsManager from "../../../../handlers/CreditsManager";
 import prisma from "../../../../handlers/prisma";
 import generateCooldownName from "../../../../helpers/generateCooldownName";
 import deferReply from "../../../../utils/deferReply";
+import { GuildNotFoundError } from "../../../../utils/errors";
 import sendResponse from "../../../../utils/sendResponse";
 import jobs from "./jobs";
 
@@ -28,18 +29,7 @@ export const execute = async (interaction: ChatInputCommandInteraction) => {
   const { guild, user } = interaction;
 
   await deferReply(interaction, false);
-
+  if (!guild) throw new GuildNotFoundError();
-  if (!guild) {
-    throw new Error(
-      "Oops! It seems like you're not part of a guild. Join a guild to use this command!"
-    );
-  }
-
-  if (!user) {
-    throw new Error(
-      "Oops! It looks like we couldn't find your user information. Please try again or contact support for assistance."
-    );
-  }
 
   const chance = new Chance();
 

src/commands/manage/groups/credits/subcommands/give/index.ts

@@ -7,6 +7,7 @@ import {
 import CreditsManager from "../../../../../../handlers/CreditsManager";
 import checkPermission from "../../../../../../utils/checkPermission";
 import deferReply from "../../../../../../utils/deferReply";
+import { GuildNotFoundError } from "../../../../../../utils/errors";
 import sendResponse from "../../../../../../utils/sendResponse";
 
 const creditsManager = new CreditsManager();
@@ -40,19 +41,11 @@ export const execute = async (
 
   await deferReply(interaction, false);
   checkPermission(interaction, PermissionsBitField.Flags.ManageGuild);
-
+  if (!guild) throw new GuildNotFoundError();
-  if (!guild) {
-    throw new Error("We could not get the current guild from Discord.");
-  }
 
   const discordReceiver = options.getUser("user", true);
   const creditsAmount = options.getInteger("amount", true);
 
-  if (!discordReceiver || typeof creditsAmount !== "number") {
-    await sendResponse(interaction, "Invalid user or credit amount provided.");
-    return;
-  }
-
   const embedSuccess = new EmbedBuilder()
     .setColor(process.env.EMBED_COLOR_SUCCESS)
     .setAuthor({ name: "💳 Credits Manager" })

src/commands/manage/groups/credits/subcommands/giveaway/index.ts

@@ -14,6 +14,7 @@ import { v4 as uuidv4 } from "uuid";
 import CtrlPanelAPI from "../../../../../../services/CtrlPanelAPI";
 import checkPermission from "../../../../../../utils/checkPermission";
 import deferReply from "../../../../../../utils/deferReply";
+import { GuildNotFoundError } from "../../../../../../utils/errors";
 import sendResponse from "../../../../../../utils/sendResponse";
 
 // Function
@@ -47,18 +48,13 @@ export const execute = async (interaction: ChatInputCommandInteraction) => {
 
   await deferReply(interaction, true);
   checkPermission(interaction, PermissionsBitField.Flags.ManageGuild);
+  if (!guild) throw new GuildNotFoundError();
 
-  if (!guild) throw new Error("This command can only be used in guilds");
   const ctrlPanelAPI = new CtrlPanelAPI(guild);
 
-  const uses = options?.getInteger("uses");
+  const uses = options?.getInteger("uses", true);
-  const creditAmount = options?.getInteger("credit");
+  const creditAmount = options?.getInteger("credit", true);
-  const channel = options?.getChannel("channel");
+  const channel = options?.getChannel("channel", true);
-
-  if (!uses) throw new Error("Amount of uses is required.");
-  if (!creditAmount) throw new Error("Amount of credits is required.");
-  if (!channel) throw new Error("Channel is required.");
-  if (!guild) throw new Error("Guild is required.");
 
   const embedSuccess = new EmbedBuilder()
     .setTitle(":toolbox:︱Giveaway")

src/commands/manage/groups/credits/subcommands/set/index.ts

@@ -7,6 +7,7 @@ import {
 import CreditsManager from "../../../../../../handlers/CreditsManager";
 import checkPermission from "../../../../../../utils/checkPermission";
 import deferReply from "../../../../../../utils/deferReply";
+import { GuildNotFoundError } from "../../../../../../utils/errors";
 import sendResponse from "../../../../../../utils/sendResponse";
 
 const creditsManager = new CreditsManager();
@@ -38,18 +39,10 @@ export const execute = async (
 
   await deferReply(interaction, false);
   checkPermission(interaction, PermissionsBitField.Flags.ManageGuild);
+  if (!guild) throw new GuildNotFoundError();
 
-  if (!guild) {
+  const discordReceiver = options.getUser("user", true);
-    throw new Error("We could not get the current guild from Discord.");
+  const creditsAmount = options.getInteger("amount", true);
-  }
-
-  const discordReceiver = options.getUser("user");
-  const creditsAmount = options.getInteger("amount");
-
-  if (!discordReceiver || typeof creditsAmount !== "number") {
-    await sendResponse(interaction, "Invalid user or credit amount provided.");
-    return;
-  }
 
   const embedSuccess = new EmbedBuilder()
     .setColor(process.env.EMBED_COLOR_SUCCESS)

src/commands/manage/groups/credits/subcommands/take/index.ts

@@ -7,6 +7,7 @@ import {
 import CreditsManager from "../../../../../../handlers/CreditsManager";
 import checkPermission from "../../../../../../utils/checkPermission";
 import deferReply from "../../../../../../utils/deferReply";
+import { GuildNotFoundError } from "../../../../../../utils/errors";
 import sendResponse from "../../../../../../utils/sendResponse";
 
 const creditsManager = new CreditsManager();
@@ -38,18 +39,10 @@ export const execute = async (
 
   await deferReply(interaction, false);
   checkPermission(interaction, PermissionsBitField.Flags.ManageGuild);
+  if (!guild) throw new GuildNotFoundError();
 
-  if (!guild) {
+  const discordReceiver = options.getUser("user", true);
-    throw new Error("We could not get the current guild from Discord.");
+  const creditsAmount = options.getInteger("amount", true);
-  }
-
-  const discordReceiver = options.getUser("user");
-  const creditsAmount = options.getInteger("amount");
-
-  if (!discordReceiver || typeof creditsAmount !== "number") {
-    await sendResponse(interaction, "Invalid user or credit amount provided.");
-    return;
-  }
 
   const embedSuccess = new EmbedBuilder()
     .setColor(process.env.EMBED_COLOR_SUCCESS)

src/commands/manage/groups/credits/subcommands/transfer/index.ts

@@ -7,6 +7,7 @@ import {
 import CreditsManager from "../../../../../../handlers/CreditsManager";
 import checkPermission from "../../../../../../utils/checkPermission";
 import deferReply from "../../../../../../utils/deferReply";
+import { GuildNotFoundError } from "../../../../../../utils/errors";
 import sendResponse from "../../../../../../utils/sendResponse";
 
 const creditsManager = new CreditsManager();
@@ -44,18 +45,11 @@ export const execute = async (
 
   await deferReply(interaction, false);
   checkPermission(interaction, PermissionsBitField.Flags.ManageGuild);
+  if (!guild) throw new GuildNotFoundError();
 
-  if (!guild) {
+  const fromUser = options.getUser("from-user", true);
-    throw new Error("We could not get the current guild from Discord.");
+  const toUser = options.getUser("to-user", true);
-  }
+  const creditsAmount = options.getInteger("amount", true);
-
-  const fromUser = options.getUser("from-user");
-  const toUser = options.getUser("to-user");
-  const creditsAmount = options.getInteger("amount");
-
-  if (!fromUser || !toUser || typeof creditsAmount !== "number") {
-    throw new Error("Invalid user(s) or credit amount provided.");
-  }
 
   const transactionResult = await creditsManager.transfer(
     guild,

src/commands/moderation/subcommands/prune/index.ts

@@ -8,6 +8,10 @@ import {
 } from "discord.js";
 import checkPermission from "../../../../utils/checkPermission";
 import deferReply from "../../../../utils/deferReply";
+import {
+  ChannelNotFoundError,
+  GuildNotFoundError,
+} from "../../../../utils/errors";
 import sendResponse from "../../../../utils/sendResponse";
 
 // Function
@@ -31,23 +35,23 @@ export const builder = (command: SlashCommandSubcommandBuilder) => {
 };
 
 export const execute = async (interaction: ChatInputCommandInteraction) => {
-  const { user, options, channel } = interaction;
+  const { guild, user, options, channel } = interaction;
-  if (!channel) {
-    throw new Error("The bot failed to find the channel to prune messages in.");
-  }
 
   await deferReply(interaction, false);
   checkPermission(interaction, PermissionsBitField.Flags.ManageMessages);
+  if (!guild) throw new GuildNotFoundError();
+  if (!channel) throw new ChannelNotFoundError();
 
-  const count = options.getInteger("count");
+  const count = options.getInteger("count", true);
   const bots = options.getBoolean("bots");
-  if (!count || count < 1 || count > 99) {
+  if (count < 1 || count > 99) {
     throw new Error(
       "Please provide a number between 1 and 99 for the prune command."
     );
   }
 
-  if (channel.type !== ChannelType.GuildText) return;
+  if (channel.type !== ChannelType.GuildText)
+    throw new Error("This channel is not a text channel in a guild!");
 
   const messagesToDelete = await channel.messages
     .fetch({ limit: count + 1 }) // Fetch count + 1 messages to exclude the interaction message itself

src/commands/quotes/subcommands/post/index.ts

@@ -10,6 +10,10 @@ import prisma from "../../../../handlers/prisma";
 import generateCooldownName from "../../../../helpers/generateCooldownName";
 import upsertGuildMember from "../../../../helpers/upsertGuildMember";
 import deferReply from "../../../../utils/deferReply";
+import {
+  ChannelNotFoundError,
+  GuildNotFoundError,
+} from "../../../../utils/errors";
 import sendResponse from "../../../../utils/sendResponse";
 
 const cooldownManager = new CooldownManager();
@@ -35,10 +39,10 @@ export const builder = (command: SlashCommandSubcommandBuilder) => {
 export const execute = async (
   interaction: ChatInputCommandInteraction
 ): Promise<void> => {
-  await deferReply(interaction, true);
-
   const { options, guild, user } = interaction;
-  if (!guild) throw new Error("A guild is required.");
+
+  await deferReply(interaction, true);
+  if (!guild) throw new GuildNotFoundError();
 
   const quoteUser = options.getUser("user", true);
   const quoteString = options.getString("message", true);
@@ -61,7 +65,7 @@ export const execute = async (
     guildQuotesSettings.quoteChannelId
   );
 
-  if (!channel) throw new Error("No channel found.");
+  if (!channel) throw new ChannelNotFoundError();
 
   if (channel.type !== ChannelType.GuildText)
     throw new Error("The channel is not a text channel.");

src/commands/reputation/subcommands/check/index.ts

@@ -22,14 +22,11 @@ export const builder = (command: SlashCommandSubcommandBuilder) => {
 };
 
 export const execute = async (interaction: ChatInputCommandInteraction) => {
-  await deferReply(interaction, false);
-
   const { options, user } = interaction;
 
+  await deferReply(interaction, false);
   const checkUser = options.getUser("user") || user;
 
-  if (!user) throw new Error("User unavailable");
-
   const userReputation = await reputationManager.check(checkUser);
 
   const interactionEmbed = new EmbedBuilder()

src/commands/reputation/subcommands/repute/index.ts

@@ -8,6 +8,7 @@ import CooldownManager from "../../../../handlers/CooldownManager";
 import ReputationManager from "../../../../handlers/ReputationManager";
 import generateCooldownName from "../../../../helpers/generateCooldownName";
 import deferReply from "../../../../utils/deferReply";
+import { GuildNotFoundError } from "../../../../utils/errors";
 import sendResponse from "../../../../utils/sendResponse";
 
 const cooldownManager = new CooldownManager();
@@ -37,21 +38,13 @@ export const builder = (command: SlashCommandSubcommandBuilder) => {
 
 export const execute = async (interaction: ChatInputCommandInteraction) => {
   const { options, user, guild } = interaction;
-  await deferReply(interaction, true);
 
-  if (!guild) {
+  await deferReply(interaction, true);
-    throw new Error("This command can only be used in guilds");
+  if (!guild) throw new GuildNotFoundError();
-  }
 
   const targetUser = options.getUser("user", true);
   const reputationType = options.getString("type", true);
 
-  if (!targetUser) {
-    throw new Error(
-      "Sorry, we were unable to find the user you are trying to give reputation to."
-    );
-  }
-
   if (reputationType !== "positive" && reputationType !== "negative") {
     throw new Error("Invalid reputation type");
   }

src/commands/settings/subcommands/credits/index.ts

@@ -7,6 +7,7 @@ import {
 import prisma from "../../../../handlers/prisma";
 import checkPermission from "../../../../utils/checkPermission";
 import deferReply from "../../../../utils/deferReply";
+import { GuildNotFoundError } from "../../../../utils/errors";
 import sendResponse from "../../../../utils/sendResponse";
 
 export const builder = (command: SlashCommandSubcommandBuilder) => {
@@ -32,26 +33,14 @@ export const builder = (command: SlashCommandSubcommandBuilder) => {
 };
 
 export const execute = async (interaction: ChatInputCommandInteraction) => {
-  await deferReply(interaction, true);
-
-  checkPermission(interaction, PermissionsBitField.Flags.ManageGuild);
-
   const { guild, options, user } = interaction;
 
-  const workBonusChance = options.getNumber("work-bonus-chance");
+  await deferReply(interaction, true);
-  const workPenaltyChance = options.getNumber("work-penalty-chance");
+  checkPermission(interaction, PermissionsBitField.Flags.ManageGuild);
+  if (!guild) throw new GuildNotFoundError();
 
-  if (!guild) {
+  const workBonusChance = options.getNumber("work-bonus-chance", true);
-    throw new Error("Guild not found.");
+  const workPenaltyChance = options.getNumber("work-penalty-chance", true);
-  }
-
-  if (typeof workBonusChance !== "number") {
-    throw new Error("Work Bonus Chance must be a number.");
-  }
-
-  if (typeof workPenaltyChance !== "number") {
-    throw new Error("Work Penalty Chance must be a number.");
-  }
 
   const upsertGuildCreditsSettings = await prisma.guildCreditsSettings.upsert({
     where: {

src/commands/settings/subcommands/ctrlpanel/index.ts

@@ -9,6 +9,7 @@ import CtrlPanelAPI, {
 } from "../../../../services/CtrlPanelAPI";
 import checkPermission from "../../../../utils/checkPermission";
 import deferReply from "../../../../utils/deferReply";
+import { GuildNotFoundError } from "../../../../utils/errors";
 import logger from "../../../../utils/logger";
 import sendResponse from "../../../../utils/sendResponse";
 
@@ -35,12 +36,11 @@ export const builder = (command: SlashCommandSubcommandBuilder) => {
 };
 
 export const execute = async (interaction: ChatInputCommandInteraction) => {
-  await deferReply(interaction, true);
-
-  checkPermission(interaction, PermissionsBitField.Flags.ManageGuild);
-
   const { guild, options, user } = interaction;
-  if (!guild) throw new Error("Guild unavailable");
+
+  await deferReply(interaction, true);
+  checkPermission(interaction, PermissionsBitField.Flags.ManageGuild);
+  if (!guild) throw new GuildNotFoundError();
 
   const scheme = options.getString("scheme", true);
   const domain = options.getString("domain", true);

src/commands/settings/subcommands/quotes/index.ts

@@ -7,6 +7,7 @@ import {
 import prisma from "../../../../handlers/prisma";
 import checkPermission from "../../../../utils/checkPermission";
 import deferReply from "../../../../utils/deferReply";
+import { GuildNotFoundError } from "../../../../utils/errors";
 import sendResponse from "../../../../utils/sendResponse";
 
 export const builder = (command: SlashCommandSubcommandBuilder) => {
@@ -22,19 +23,15 @@ export const builder = (command: SlashCommandSubcommandBuilder) => {
 };
 
 export const execute = async (interaction: ChatInputCommandInteraction) => {
-  await deferReply(interaction, true);
-
-  checkPermission(interaction, PermissionsBitField.Flags.ManageGuild);
-
   const { guild, options, user } = interaction;
 
+  await deferReply(interaction, true);
+  checkPermission(interaction, PermissionsBitField.Flags.ManageGuild);
+  if (!guild) throw new GuildNotFoundError();
+
   const quoteStatus = options.getBoolean("status", true);
   const quoteChannel = options.getChannel("channel", true);
 
-  if (!guild) {
-    throw new Error("Guild not found.");
-  }
-
   const upsertGuildQuotesSettings = await prisma.guildQuotesSettings.upsert({
     where: {
       id: guild.id,

src/commands/shop/subcommands/ctrlpanel.ts

@@ -11,6 +11,7 @@ import { v4 as uuidv4 } from "uuid";
 import CreditsManager from "../../../handlers/CreditsManager";
 import CtrlPanelAPI from "../../../services/CtrlPanelAPI";
 import deferReply from "../../../utils/deferReply";
+import { GuildNotFoundError } from "../../../utils/errors";
 import sendResponse from "../../../utils/sendResponse";
 
 const creditsManager = new CreditsManager();
@@ -30,15 +31,13 @@ export const builder = (command: SlashCommandSubcommandBuilder) => {
 };
 
 export const execute = async (interaction: ChatInputCommandInteraction) => {
-  await deferReply(interaction, true);
-
   const { options, guild, user, client } = interaction;
-  if (!guild) throw new Error("This command can only be executed in a guild");
+
+  await deferReply(interaction, true);
+  if (!guild) throw new GuildNotFoundError();
 
   const ctrlPanelAPI = new CtrlPanelAPI(guild);
-
   const withdrawalAmount = options.getInteger("withdraw", true);
-
   await creditsManager.take(guild, user, withdrawalAmount);
 
   const voucherCode = uuidv4();

src/commands/utils/subcommands/about/index.ts

@@ -8,6 +8,7 @@ import {
   SlashCommandSubcommandBuilder,
 } from "discord.js";
 import deferReply from "../../../../utils/deferReply";
+import { GuildNotFoundError } from "../../../../utils/errors";
 import sendResponse from "../../../../utils/sendResponse";
 
 export const builder = (command: SlashCommandSubcommandBuilder) => {
@@ -17,13 +18,10 @@ export const builder = (command: SlashCommandSubcommandBuilder) => {
 };
 
 export const execute = async (interaction: CommandInteraction) => {
-  await deferReply(interaction, false);
-
   const { user, guild, client } = interaction;
 
-  if (!guild) {
+  await deferReply(interaction, false);
-    throw new Error("This command is only available in guilds");
+  if (!guild) throw new GuildNotFoundError();
-  }
 
   const guildCount = client.guilds.cache.size;
   const memberCount = client.guilds.cache.reduce(

src/commands/utils/subcommands/avatar/index.ts

@@ -18,12 +18,10 @@ export const builder = (command: SlashCommandSubcommandBuilder) => {
 };
 
 export const execute = async (interaction: CommandInteraction) => {
-  await deferReply(interaction, false);
-
   const { options, user } = interaction;
 
+  await deferReply(interaction, false);
   const userOption = options.getUser("user");
-
   const targetUser = userOption || user;
 
   const embed = new EmbedBuilder()

src/utils/ensureGuildExists.ts

@@ -0,0 +1,10 @@
+import { Guild, Interaction } from "discord.js";
+
+export default function ensureGuildExists(interaction: Interaction): Guild {
+  if (!interaction.guild) {
+    throw new Error(
+      "Oops! It looks like you're not part of a guild. Join a guild to embark on this adventure!"
+    );
+  }
+  return interaction.guild;
+}

src/utils/ensureUserExists.ts

@@ -0,0 +1,10 @@
+import { Interaction, User } from "discord.js";
+
+export default function ensureUserExists(interaction: Interaction): User {
+  if (!interaction.user) {
+    throw new Error(
+      "Oops! We couldn't find your user information. Please try again or contact support for assistance."
+    );
+  }
+  return interaction.user;
+}

src/utils/errors.ts

@@ -0,0 +1,32 @@
+class CustomError extends Error {
+  constructor(message: string) {
+    super(message);
+    this.name = this.constructor.name;
+  }
+}
+
+class GuildNotFoundError extends CustomError {
+  constructor() {
+    super(
+      "Guild not found: You are not part of a guild. Join a guild to embark on this adventure."
+    );
+  }
+}
+
+class UserNotFoundError extends CustomError {
+  constructor() {
+    super(
+      "User not found: We couldn't retrieve your user information. Please try again or contact support for assistance."
+    );
+  }
+}
+
+class ChannelNotFoundError extends CustomError {
+  constructor() {
+    super(
+      "Channel not found: We couldn't retrieve the channel. Please try again or contact support for assistance."
+    );
+  }
+}
+
+export { GuildNotFoundError, UserNotFoundError, ChannelNotFoundError };