[server] Add req/res model files

server/ente/filedata/filedata.go

@@ -0,0 +1,67 @@
+package filedata
+
+import (
+	"fmt"
+	"github.com/ente-io/museum/ente"
+)
+
+type PutFileDataRequest struct {
+	FileID           int64           `json:"fileID" binding:"required"`
+	Type             ente.ObjectType `json:"type" binding:"required"`
+	EncryptedData    *string         `json:"encryptedData"`
+	DecryptionHeader *string         `json:"decryptionHeader"`
+	// ObjectKey is the key of the object in the S3 bucket. This is needed while putting the object in the S3 bucket.
+	ObjectKey *string `json:"objectKey"`
+	// size of the object that is being uploaded. This helps in checking the size of the object that is being uploaded.
+	Size *int64 `json:"size" `
+}
+
+func (r PutFileDataRequest) Validate() error {
+	switch r.Type {
+	case ente.PreviewVideo:
+		if r.EncryptedData == nil || r.DecryptionHeader == nil || *r.EncryptedData == "" || *r.DecryptionHeader == "" {
+			// the video playlist is uploaded as part of encrypted data and decryption header
+			return ente.NewBadRequestWithMessage("encryptedData and decryptionHeader are required for preview video")
+		}
+		if r.Size == nil || r.ObjectKey == nil {
+			return ente.NewBadRequestWithMessage("size and objectKey are required for preview video")
+		}
+	case ente.PreviewImage:
+		if r.Size == nil || r.ObjectKey == nil {
+			return ente.NewBadRequestWithMessage("size and objectKey are required for preview image")
+		}
+	case ente.DerivedMeta:
+		if r.EncryptedData == nil || r.DecryptionHeader == nil || *r.EncryptedData == "" || *r.DecryptionHeader == "" {
+			return ente.NewBadRequestWithMessage("encryptedData and decryptionHeader are required for derived meta")
+		}
+	default:
+		return ente.NewBadRequestWithMessage(fmt.Sprintf("invalid object type %s", r.Type))
+	}
+	return nil
+}
+
+// GetFilesData should only be used for getting the preview video playlist and derived metadata.
+type GetFilesData struct {
+	FileIDs []int64         `form:"fileIDs" binding:"required"`
+	Type    ente.ObjectType `json:"type" binding:"required"`
+}
+
+func (g *GetFilesData) Validate() error {
+	if g.Type != ente.PreviewVideo && g.Type != ente.DerivedMeta {
+		return ente.NewBadRequestWithMessage(fmt.Sprintf("unsupported object type %s", g.Type))
+	}
+	return nil
+}
+
+type Entity struct {
+	FileID           int64           `json:"fileID"`
+	Type             ente.ObjectType `json:"type"`
+	EncryptedData    string          `json:"encryptedData"`
+	DecryptionHeader string          `json:"decryptionHeader"`
+}
+
+type GetFilesDataResponse struct {
+	Data                []Entity `json:"data"`
+	PendingIndexFileIDs []int64  `json:"pendingIndexFileIDs"`
+	ErrFileIDs          []int64  `json:"errFileIDs"`
+}