Add a configUploader module to select the uploader based on config

src/config.ts

@@ -1,8 +1,4 @@
 import { dotenv, getPublicKey, nip19, secp, z } from '@/deps.ts';
-import { ipfsUploader } from '@/uploaders/ipfs.ts';
-import { s3Uploader } from '@/uploaders/s3.ts';
-
-import type { Uploader } from '@/uploaders/types.ts';
 
 /** Load environment config from `.env` */
 await dotenv.load({
@@ -100,15 +96,8 @@ const Conf = {
     },
   },
   /** Module to upload files with. */
-  get uploader(): Uploader {
-    switch (Deno.env.get('DITTO_UPLOADER')) {
-      case 's3':
-        return s3Uploader;
-      case 'ipfs':
-        return ipfsUploader;
-      default:
-        return ipfsUploader;
-    }
+  get uploader() {
+    return Deno.env.get('DITTO_UPLOADER');
   },
   /** Media base URL for uploads. */
   get mediaDomain() {

src/controllers/api/media.ts

@@ -2,6 +2,7 @@ import { AppController } from '@/app.ts';
 import { Conf } from '@/config.ts';
 import { z } from '@/deps.ts';
 import { fileSchema } from '@/schema.ts';
+import { configUploader as uploader } from '@/uploaders/config.ts';
 import { parseBody } from '@/utils/web.ts';
 
 const mediaBodySchema = z.object({
@@ -20,7 +21,7 @@ const mediaController: AppController = async (c) => {
 
   try {
     const { file, description } = result.data;
-    const { cid } = await Conf.uploader.upload(file);
+    const { cid } = await uploader.upload(file);
 
     const url = new URL(`/ipfs/${cid}`, Conf.mediaDomain).toString();
 

src/uploaders/config.ts

@@ -0,0 +1,30 @@
+import { Conf } from '@/config.ts';
+
+import { ipfsUploader } from './ipfs.ts';
+import { s3Uploader } from './s3.ts';
+
+import type { Uploader } from './types.ts';
+
+/** Meta-uploader determined from configuration. */
+const configUploader: Uploader = {
+  upload(file) {
+    return uploader().upload(file);
+  },
+  delete(cid) {
+    return uploader().delete(cid);
+  },
+};
+
+/** Get the uploader module based on configuration. */
+function uploader() {
+  switch (Conf.uploader) {
+    case 's3':
+      return s3Uploader;
+    case 'ipfs':
+      return ipfsUploader;
+    default:
+      return ipfsUploader;
+  }
+}
+
+export { configUploader };