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

cloud/maplefile-backend/internal/usecase/collection/harddelete.go

@@ -0,0 +1,70 @@
+// monorepo/cloud/backend/internal/maplefile/usecase/collection/harddelete.go
+package collection
+
+import (
+	"context"
+
+	"go.uber.org/zap"
+
+	"github.com/gocql/gocql"
+	"codeberg.org/mapleopentech/monorepo/cloud/maplefile-backend/config"
+	dom_collection "codeberg.org/mapleopentech/monorepo/cloud/maplefile-backend/internal/domain/collection"
+	"codeberg.org/mapleopentech/monorepo/cloud/maplefile-backend/pkg/httperror"
+)
+
+// HardDeleteCollectionUseCase permanently deletes a collection
+// Used for GDPR right-to-be-forgotten implementation
+type HardDeleteCollectionUseCase interface {
+	Execute(ctx context.Context, id gocql.UUID) error
+}
+
+type hardDeleteCollectionUseCaseImpl struct {
+	config *config.Configuration
+	logger *zap.Logger
+	repo   dom_collection.CollectionRepository
+}
+
+func NewHardDeleteCollectionUseCase(
+	config *config.Configuration,
+	logger *zap.Logger,
+	repo dom_collection.CollectionRepository,
+) HardDeleteCollectionUseCase {
+	logger = logger.Named("HardDeleteCollectionUseCase")
+	return &hardDeleteCollectionUseCaseImpl{config, logger, repo}
+}
+
+func (uc *hardDeleteCollectionUseCaseImpl) Execute(ctx context.Context, id gocql.UUID) error {
+	//
+	// STEP 1: Validation.
+	//
+
+	e := make(map[string]string)
+	if id.String() == "" {
+		e["id"] = "Collection ID is required"
+	}
+	if len(e) != 0 {
+		uc.logger.Warn("Failed validating collection hard deletion",
+			zap.Any("error", e))
+		return httperror.NewForBadRequest(&e)
+	}
+
+	//
+	// STEP 2: Hard delete from database (no tombstone).
+	//
+
+	uc.logger.Info("Hard deleting collection (GDPR mode)",
+		zap.String("collection_id", id.String()))
+
+	err := uc.repo.HardDelete(ctx, id)
+	if err != nil {
+		uc.logger.Error("Failed to hard delete collection",
+			zap.String("collection_id", id.String()),
+			zap.Error(err))
+		return err
+	}
+
+	uc.logger.Info("✅ Collection hard deleted successfully",
+		zap.String("collection_id", id.String()))
+
+	return nil
+}