[New] Added nickname command which allows you to change your own nick…

…name or others!

commands/misc/nickname.js

@@ -0,0 +1,87 @@
+const { SlashCommandBuilder } = require("@discordjs/builders");
+const { Permissions } = require("discord.js");
+const { embedMessage } = require("../../modules/embedSimple");
+
+module.exports = {
+  data: new SlashCommandBuilder()
+    .setName("nickname")
+    .setDescription("Changes your own nickname or other user's")
+    .addStringOption((option) =>
+      option
+        .setName("nick")
+        .setDescription("The new nickname!")
+        .setRequired(true)
+    )
+    .addUserOption((option) =>
+      option
+        .setName("user")
+        .setDescription("Select a user to change their's nickname")
+    ),
+  async execute(interaction, client) {
+    await interaction.deferReply();
+
+    const user = interaction.options.getMember("user");
+    const newNickname = interaction.options.getString("nick");
+
+    if (
+      user &&
+      !interaction.member.permissions.has(Permissions.FLAGS.MANAGE_NICKNAMES)
+    ) {
+      await interaction.followUp({
+        embeds: [
+          embedMessage(
+            "#9dcc37",
+            `You do not have permission to change ${user.toString()} nickname!`
+          ),
+        ],
+      });
+    }
+
+    if (
+      user &&
+      interaction.member.permissions.has(Permissions.FLAGS.MANAGE_NICKNAMES)
+    ) {
+      try {
+        await user.setNickname(newNickname);
+        await interaction.followUp({
+          embeds: [
+            embedMessage("#9dcc37", `Nickname has been successfully changed!`),
+          ],
+        });
+      } catch (err) {
+        if (err.message === "Missing Permissions") {
+          return await interaction.followUp({
+            embeds: [
+              embedMessage(
+                "#9dcc37",
+                `❌ I do not have permission to change other member's nicknames who have the same role as me or higher!`
+              ),
+            ],
+          });
+        }
+      }
+    }
+
+    if (!user) {
+      try {
+        await interaction.member.setNickname(newNickname);
+        await interaction.followUp({
+          embeds: [
+            embedMessage("#9dcc37", `Nickname has been successfully changed!`),
+          ],
+        });
+      } catch (err) {
+        if (err.message === "Missing Permissions") {
+          return await interaction.followUp({
+            embeds: [
+              embedMessage(
+                "#9dcc37",
+                ` ❌ I do not have permission to change your Nickname, maybe your role is higher than mine or perhaps you are the owner ?`
+              ),
+            ],
+          });
+        }
+      }
+    }
+  },
+};