refac: decouple persistence and image storage behind driver registries

internal/domain/image/imageDomain.go

@@ -191,6 +191,15 @@ type ImageInput struct {
 	UploadedByID uint32
 }
 
+type Metadata struct {
+	Filename    string
+	Size        int64
+	ContentType string
+	Width       int
+	Height      int
+	SHA256      string
+}
+
 type Image struct {
 	ID           uint32    `json:"id"`
 	Path         string    `json:"path"`

internal/domain/image/imageRepositoryInterface.go

@@ -6,7 +6,7 @@ type SearchQuery struct {
 }
 
 type Repository interface {
-	Create(input ImageInput) (Image, error)
+	Create(image Image) (Image, error)
 	Get(id uint32) (Image, error)
 	Delete(id uint32) error
 	List(query SearchQuery) ([]Image, error)
@@ -14,4 +14,6 @@ type Repository interface {
 	Rename(id uint32, filename string) (Image, error)
 	ListDuplicates() ([]Image, error)
 	Counts() (Counts, error)
+	ListMissingMetadata() ([]Image, error)
+	UpdateMetadata(id uint32, metadata Metadata) error
 }

internal/domain/image/imageStorage.go

@@ -0,0 +1,27 @@
+package image
+
+import (
+	"errors"
+	"io"
+	"time"
+)
+
+var ErrBlobNotFound = errors.New("stored image content not found")
+
+const PublicPathPrefix = "/static/uploadedImages/"
+
+func PublicPath(storedName string) string {
+	return PublicPathPrefix + storedName
+}
+
+type Blob struct {
+	Content io.ReadCloser
+	Size    int64
+	ModTime time.Time
+}
+
+type Storage interface {
+	Put(contentType string, content io.Reader) (string, error)
+	Open(storedName string) (Blob, error)
+	Delete(storedName string) error
+}