[Buttons] Update buttons to use classes (#24)

src/buttons/roleButton.ts

@@ -0,0 +1,38 @@
+import { ButtonInteraction, Client, MessageFlags } from 'discord.js';
+import { Database } from '../shared/Database';
+import { Button } from '../types';
+
+class RoleButtonButton implements Button<Client> {
+  id = 'role-button';
+
+  async execute(context: Client<boolean>, interaction: ButtonInteraction): Promise<void> {
+    if (!interaction.inGuild()) return;
+    await interaction.deferReply({ flags: MessageFlags.Ephemeral });
+
+    try {
+      const roleId = await Database.getRoleFromButton(interaction.message.id);
+      if (!roleId) throw new Error("I couldn't find an associated role ID with this button.");
+
+      const guild = await context.guilds.fetch(interaction.guildId);
+      const member = await guild.members.fetch(interaction.user.id);
+      if (!member) throw new Error('I was unable to fetch you as a member.');
+
+      const bot = await guild.members.fetchMe();
+      const role = await guild.roles.fetch(roleId);
+      if (!role) throw new Error("The configured role for this button doesn't exist.");
+      if (role.position > bot.roles.highest.position) throw new Error(`The configured role (\`${role.name}\`) is higher than my highest role.`);
+
+      if (member.roles.cache.has(roleId)) {
+        await member.roles.remove(roleId);
+        await interaction.editReply({ content: 'Role removed.' });
+      } else {
+        await member.roles.add(roleId);
+        await interaction.editReply({ content: 'Role Added' });
+      }
+    } catch (error: Error | any) {
+      await interaction.editReply({ content: error.message }).catch(() => {});
+    }
+  }
+}
+
+export default new RoleButtonButton();