(buttons): Hook up buttons. Pre-testing.

src/buttons/closeModTicket.ts

@@ -0,0 +1,39 @@
+import { ButtonInteraction, Client, MessageFlags, ChannelType } from 'discord.js';
+import { Button } from '../types';
+
+class CloseModTicketButton implements Button<Client> {
+  id = 'close-mod-ticket';
+
+  async execute(context: Client<boolean>, interaction: ButtonInteraction): Promise<void> {
+    if (!interaction.inGuild()) return;
+    await interaction.deferReply({ flags: MessageFlags.Ephemeral });
+
+    try {
+      const channel = await context.channels.fetch(interaction.channelId);
+  
+      if (!channel) throw new Error("The interaction channel couldn't be fetched.");
+      if (!channel.isThread() || channel.type != ChannelType.PrivateThread) throw new Error('This interaction was not run in a ticket thread.');
+      if (!channel.isSendable()) throw new Error("I don't have permission to send messages in this channel.");
+  
+      if (!interaction.memberPermissions.has('KickMembers')) throw new Error("You don't have permission to close this ticket.");
+  
+      await interaction.message.edit({
+        content: interaction.message.content,
+        components: []
+      });
+  
+      await channel.send('This ticket has been closed by staff.');
+  
+      await interaction.editReply({ content: 'Ticket closed.' });
+  
+      await channel.edit({
+        archived: true,
+        locked: true
+      });
+    } catch (error: Error | any) {
+      await interaction.editReply({ content: error.message }).catch(() => {});
+    }
+  }
+}
+
+export default new CloseModTicketButton();