Initial commit: Open sourcing all of the Maple Open Technologies code.

cloud/maplefile-backend/internal/repo/filemetadata/delete.go

@@ -0,0 +1,127 @@
+// monorepo/cloud/maplefile-backend/internal/maplefile/repo/filemetadata/delete.go
+package filemetadata
+
+import (
+	"context"
+	"fmt"
+	"time"
+
+	"github.com/gocql/gocql"
+	"go.uber.org/zap"
+
+	dom_file "codeberg.org/mapleopentech/monorepo/cloud/maplefile-backend/internal/domain/file"
+)
+
+func (impl *fileMetadataRepositoryImpl) SoftDelete(id gocql.UUID) error {
+	file, err := impl.Get(id)
+	if err != nil {
+		return fmt.Errorf("failed to get file for soft delete: %w", err)
+	}
+
+	if file == nil {
+		return fmt.Errorf("file not found")
+	}
+
+	// Validate state transition
+	if err := dom_file.IsValidStateTransition(file.State, dom_file.FileStateDeleted); err != nil {
+		return fmt.Errorf("invalid state transition: %w", err)
+	}
+
+	// Update file state
+	file.State = dom_file.FileStateDeleted
+	file.ModifiedAt = time.Now()
+	file.Version++
+	file.TombstoneVersion = file.Version
+	file.TombstoneExpiry = time.Now().Add(30 * 24 * time.Hour) // 30 days
+
+	return impl.Update(file)
+}
+
+func (impl *fileMetadataRepositoryImpl) SoftDeleteMany(ids []gocql.UUID) error {
+	for _, id := range ids {
+		if err := impl.SoftDelete(id); err != nil {
+			impl.Logger.Warn("failed to soft delete file",
+				zap.String("file_id", id.String()),
+				zap.Error(err))
+		}
+	}
+	return nil
+}
+
+func (impl *fileMetadataRepositoryImpl) HardDelete(id gocql.UUID) error {
+	file, err := impl.Get(id)
+	if err != nil {
+		return fmt.Errorf("failed to get file for hard delete: %w", err)
+	}
+
+	if file == nil {
+		return fmt.Errorf("file not found")
+	}
+
+	batch := impl.Session.NewBatch(gocql.LoggedBatch)
+
+	// 1. Delete from main table
+	batch.Query(`DELETE FROM maplefile.files_by_id WHERE id = ?`, id)
+
+	// 2. Delete from collection table
+	batch.Query(`DELETE FROM maplefile.files_by_collection
+		WHERE collection_id = ? AND modified_at = ? AND id = ?`,
+		file.CollectionID, file.ModifiedAt, id)
+
+	// 3. Delete from owner table
+	batch.Query(`DELETE FROM maplefile.files_by_owner
+		WHERE owner_id = ? AND modified_at = ? AND id = ?`,
+		file.OwnerID, file.ModifiedAt, id)
+
+	// 4. Delete from created_by table
+	batch.Query(`DELETE FROM maplefile.files_by_creator
+		WHERE created_by_user_id = ? AND created_at = ? AND id = ?`,
+		file.CreatedByUserID, file.CreatedAt, id)
+
+	// 5. Delete from user sync table
+	batch.Query(`DELETE FROM maplefile.files_by_user
+		WHERE user_id = ? AND modified_at = ? AND id = ?`,
+		file.OwnerID, file.ModifiedAt, id)
+
+	// 6. Delete from denormalized files_by_tag_id table for all tags
+	for _, tag := range file.Tags {
+		batch.Query(`DELETE FROM maplefile.files_by_tag_id
+			WHERE tag_id = ? AND file_id = ?`,
+			tag.ID, id)
+	}
+
+	// Execute batch
+	if err := impl.Session.ExecuteBatch(batch); err != nil {
+		impl.Logger.Error("failed to hard delete file",
+			zap.String("file_id", id.String()),
+			zap.Error(err))
+		return fmt.Errorf("failed to hard delete file: %w", err)
+	}
+
+	// Decrement collection file count if the file was active
+	if file.State == dom_file.FileStateActive {
+		if err := impl.CollectionRepo.DecrementFileCount(context.Background(), file.CollectionID); err != nil {
+			impl.Logger.Error("failed to decrement collection file count",
+				zap.String("file_id", id.String()),
+				zap.String("collection_id", file.CollectionID.String()),
+				zap.Error(err))
+			// Don't fail the entire operation if count update fails
+		}
+	}
+
+	impl.Logger.Info("file hard deleted successfully",
+		zap.String("file_id", id.String()))
+
+	return nil
+}
+
+func (impl *fileMetadataRepositoryImpl) HardDeleteMany(ids []gocql.UUID) error {
+	for _, id := range ids {
+		if err := impl.HardDelete(id); err != nil {
+			impl.Logger.Warn("failed to hard delete file",
+				zap.String("file_id", id.String()),
+				zap.Error(err))
+		}
+	}
+	return nil
+}