chore: Adding id conversion

Signed-off-by: Vincent Boutour <[email protected]>

pkg/exif/event.go

@@ -19,6 +19,9 @@ func (a App) EventConsumer(ctx context.Context, e provider.Event) {
 
 	switch e.Type {
 	case provider.StartEvent:
+		if err := provider.RenamePreviousID(ctx, a.storageApp, e.Item, ".json", a.Rename); err != nil {
+			logger.Error("rename from previous ID: %s", err)
+		}
 		if err = a.handleStartEvent(ctx, e); err != nil {
 			getEventLogger(e.Item).Error("start: %s", err)
 		}

pkg/provider/provider.go

@@ -1,6 +1,10 @@
 package provider
 
 import (
+	"context"
+	"crypto/sha256"
+	"encoding/hex"
+	"path"
 	"path/filepath"
 
 	absto "github.com/ViBiOh/absto/pkg/model"
@@ -37,3 +41,24 @@ func MetadataDirectory(item absto.Item) string {
 
 	return Dirname(MetadataDirectoryName + pathname)
 }
+
+func itemPreviousID(item absto.Item) string {
+	hasher := sha256.New()
+	_, _ = hasher.Write([]byte(item.Pathname))
+	return hex.EncodeToString(hasher.Sum(nil))
+}
+
+func RenamePreviousID(ctx context.Context, storageApp absto.Storage, item absto.Item, suffix string, renameFunc func(context.Context, absto.Item, absto.Item) error) error {
+	if _, err := storageApp.Info(ctx, path.Join(MetadataDirectory(item), itemPreviousID(item)+suffix)); err != nil {
+		if absto.IsNotExist(err) {
+			return nil
+		}
+
+		return err
+	}
+
+	previous := item
+	previous.ID = itemPreviousID(previous)
+
+	return renameFunc(ctx, previous, item)
+}

pkg/thumbnail/event.go

@@ -17,6 +17,9 @@ func (a App) EventConsumer(ctx context.Context, e provider.Event) {
 
 	switch e.Type {
 	case provider.StartEvent:
+		if err := provider.RenamePreviousID(ctx, a.storageApp, e.Item, ".webp", a.Rename); err != nil {
+			logger.Error("rename from previous ID: %s", err)
+		}
 		fallthrough
 	case provider.UploadEvent:
 		a.generateItem(ctx, e)