Merged in feature/doc_import (pull request #177)

integration of background processor

* integration part 1

* feature working

* fix mimetype issue

internal/document/upload/get.go

@@ -3,6 +3,8 @@ package documentupload
 import (
 	"context"
 	"io"
+	"mime"
+	"path/filepath"
 	"time"
 
 	"queryorchestration/internal/database/repository"
@@ -16,6 +18,19 @@ import (
 type File struct {
 	ClientID string
 	Content  io.Reader
+	BatchID  *uuid.UUID // Optional batch ID for batch processing
+	Filename string     // Original filename for MIME type detection
+}
+
+// detectContentType determines the MIME type based on file extension
+func detectContentType(filename string) string {
+	// Use Go's standard library to detect MIME type from extension
+	contentType := mime.TypeByExtension(filepath.Ext(filename))
+	if contentType == "" {
+		// Default to binary if extension is unknown
+		return "application/octet-stream"
+	}
+	return contentType
 }
 
 func (s *Service) Upload(ctx context.Context, file File) error {
@@ -40,6 +55,7 @@ func (s *Service) Upload(ctx context.Context, file File) error {
 			CreatedAt: now,
 			EntityID:  uploadId,
 			Part:      &newPart,
+			BatchID:   file.BatchID,
 		}
 		keyStr := key.String()
 		bucket := s.cfg.GetBucket()
@@ -59,10 +75,14 @@ func (s *Service) Upload(ctx context.Context, file File) error {
 			return err
 		}
 
+		// Detect content type from original filename
+		contentType := detectContentType(file.Filename)
+
 		_, err = s.cfg.GetStoreClient().PutObject(ctx, &s3.PutObjectInput{
-			Bucket: &bucket,
-			Key:    &keyStr,
-			Body:   file.Content,
+			Bucket:      &bucket,
+			Key:         &keyStr,
+			Body:        file.Content,
+			ContentType: &contentType,
 		})
 		if err != nil {
 			return err

internal/document/upload/get_test.go

@@ -43,6 +43,7 @@ func TestUpload(t *testing.T) {
 	file := documentupload.File{
 		ClientID: "client_id",
 		Content:  strings.NewReader("abc"),
+		Filename: "test.txt",
 	}
 	log.Print("test")