1 files changed, 57 insertions, 0 deletions
diff --git a/src/handler/index.ts b/src/handler/index.ts
new file mode 100644
index 0000000..8126717
--- /dev/null
+++ b/src/handler/index.ts
@@ -0,0 +1,57 @@
+import { REST } from "@discordjs/rest";
+import {
+  APIApplicationCommandInteraction,
+  APIInteraction,
+  APIInteractionResponse,
+  InteractionType,
+  RESTPostAPIApplicationCommandsJSONBody,
+  RESTPostAPIChatInputApplicationCommandsJSONBody,
+  RESTPostAPIWebhookWithTokenJSONBody,
+  Routes,
+} from "discord-api-types/v10";
+import { rest } from "../rest";
+
+export * from "./builder";
+
+export type HandlerFn = (
+  data: APIApplicationCommandInteraction
+) => PromiseLike<APIInteractionResponse>;
+export type PromiseLike<T> = T | Promise<T>;
+export type Command = {
+  json: RESTPostAPIChatInputApplicationCommandsJSONBody;
+  handler: HandlerFn;
+};
+
+export const registerCommands = async (
+  commands: Iterable<Command>,
+  rest: REST,
+  applicationId: string
+) => {
+  for (const command of commands) {
+    await rest.post(Routes.applicationCommands(applicationId), {
+      body: command.json as RESTPostAPIApplicationCommandsJSONBody,
+    });
+  }
+};
+
+export const buildHandler = (commands: Iterable<Command>) => {
+  let internal: Map<String, Command> = new Map();
+  for (const command of commands) {
+    internal.set(command.json.name, command);
+  }
+
+  return async (event: APIInteraction, reply?: (data: object) => void) => {
+    console.log("executing: ", event.data);
+    if (event.type === InteractionType.ApplicationCommand) {
+      console.log("executing: ", event.data);
+      let command = internal.get(event.data.name);
+
+      if (command) {
+        let data = await command.handler(event);
+        console.log("sending reply", data);
+
+        reply(data);
+      }
+    }
+  };
+};