playground: simple command handler

playground/command-handler.ts

@@ -0,0 +1,39 @@
+import type { Client, CommandInteraction } from "discord.js"
+
+type Command = {
+  name: string
+  description: string
+  run: (interaction: CommandInteraction) => unknown
+}
+
+export function createCommandHandler(client: Client, commands: Command[]) {
+  client.on("ready", async () => {
+    for (const command of commands) {
+      for (const guild of client.guilds.cache.values()) {
+        await client.application?.commands.create(
+          {
+            name: command.name,
+            description: command.description,
+          },
+          guild.id,
+        )
+      }
+    }
+    console.info("ready 💖")
+  })
+
+  client.on("interactionCreate", async (interaction) => {
+    if (!interaction.isCommand()) return
+
+    const command = commands.find(
+      (command) => command.name === interaction.commandName,
+    )
+    if (command) {
+      try {
+        await command.run(interaction)
+      } catch (error) {
+        console.error(error)
+      }
+    }
+  })
+}