typescript schmypescript

src/index.ts

@@ -0,0 +1,82 @@
+import fs from "node:fs";
+import { fileURLToPath } from "node:url";
+import { dirname } from "node:path";
+import EventEmitter from "node:events";
+
+const __dirname = dirname(fileURLToPath(import.meta.url));
+
+interface Config {
+  enabled: boolean;
+  type: string;
+  network: string;
+}
+
+interface Client {
+  name: string;
+  type: string;
+  client: any;
+}
+
+interface CuffeoEvents {
+  data: [string, any];
+  error: [Error];
+}
+
+export default class Cuffeo extends EventEmitter {
+  private clients: Client[] = [];
+  private libs: Record<string, any> = {};
+
+  emit<K extends keyof CuffeoEvents>(event: K, ...args: CuffeoEvents[K]): boolean {
+    return super.emit(event, ...args);
+  }
+
+  on<K extends keyof CuffeoEvents>(event: K, listener: (...args: CuffeoEvents[K]) => void): this {
+    return super.on(event, listener);
+  }
+
+  constructor(cfg: Config[]) {
+    super();
+
+    return (async () => {
+      this.libs = await this.loadLibs();
+      this.clients = await this.registerClients(cfg);
+      return this;
+    })() as unknown as Cuffeo;
+  }
+
+  private async loadLibs(): Promise<Record<string, any>> {
+    const clientFiles = await fs.promises.readdir(`${__dirname}/clients`);
+    const modules = await Promise.all(
+      clientFiles
+        .filter(f => f.endsWith(".js"))
+        .map(async client => {
+          const lib = (await import(`./clients/${client}`)).default;
+          return { [lib.name]: lib };
+        })
+    );
+    return modules.reduce((a, b) => ({ ...a, ...b }), {});
+  }
+
+  private async registerClients(cfg: Config[]): Promise<Client[]> {
+    return Promise.all(
+      cfg
+        .filter(e => e.enabled)
+        .map(async srv => {
+          if(!Object.keys(this.libs).includes(srv.type))
+            throw new Error(`unsupported client: ${srv.type}`);
+
+          const client: Client = {
+            name: srv.network,
+            type: srv.type,
+            client: await new this.libs[srv.type](srv),
+          };
+
+          client.client.on("data", ([type, data]: [keyof CuffeoEvents, any]) =>
+            this.emit(type, data)
+          );
+
+          return client;
+        })
+    );
+  }
+}