Feat: Implement S3 object deletion when deleting an asset record

Channel-Backend/src/services/asset.service.ts

@@ -1,6 +1,8 @@
 import prisma from '../utils/db';
 import crypto from 'crypto';
 import { MailService } from './mail.service';
+import { s3Client, BUCKET_NAME } from '../utils/s3';
+import { DeleteObjectCommand } from '@aws-sdk/client-s3';
 
 export class AssetService {
   private mailService = new MailService();
@@ -377,6 +379,19 @@ export class AssetService {
   }
 
   public async deleteAsset(id: string) {
+    const asset = await prisma.asset.findUnique({ where: { id } });
+    if (asset && asset.url.startsWith('/uploads/')) {
+      const filename = asset.url.replace('/uploads/', '');
+      try {
+        await s3Client.send(new DeleteObjectCommand({
+          Bucket: BUCKET_NAME,
+          Key: filename,
+        }));
+        console.log(`[S3] Deleted file: ${filename}`);
+      } catch (err) {
+        console.error(`[S3] Failed to delete file ${filename}:`, err);
+      }
+    }
     return await prisma.asset.delete({ where: { id } });
   }