echos-ocr/src/lib/minio.ts

import { S3Client, PutObjectCommand, GetObjectCommand, DeleteObjectCommand } from "@aws-sdk/client-s3";
import { getSignedUrl } from "@aws-sdk/s3-request-presigner";

const MINIO_ENDPOINT = process.env.MINIO_ENDPOINT || "192.168.68.105";
const MINIO_PORT = parseInt(process.env.MINIO_PORT || "9000");
const MINIO_ACCESS_KEY = process.env.MINIO_ACCESS_KEY || "minioadmin";
const MINIO_SECRET_KEY = process.env.MINIO_SECRET_KEY || "";
const MINIO_BUCKET = process.env.MINIO_BUCKET || "echos-ocr";

export const s3 = new S3Client({
  endpoint: `http://${MINIO_ENDPOINT}:${MINIO_PORT}`,
  region: "us-east-1",
  credentials: {
    accessKeyId: MINIO_ACCESS_KEY,
    secretAccessKey: MINIO_SECRET_KEY,
  },
  forcePathStyle: true,
});

export const BUCKET = MINIO_BUCKET;

export async function uploadBuffer(key: string, buffer: Buffer, contentType: string): Promise<string> {
  await s3.send(
    new PutObjectCommand({
      Bucket: BUCKET,
      Key: key,
      Body: buffer,
      ContentType: contentType,
    })
  );
  return key;
}

export async function getPresignedUrl(key: string, expiresIn = 3600): Promise<string> {
  return getSignedUrl(
    s3,
    new GetObjectCommand({ Bucket: BUCKET, Key: key }),
    { expiresIn }
  );
}

export async function deleteObject(key: string): Promise<void> {
  await s3.send(
    new DeleteObjectCommand({ Bucket: BUCKET, Key: key })
  );
}