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

cloud/maplefile-backend/internal/repo/collection/restore.go

@@ -0,0 +1,36 @@
+// monorepo/cloud/maplefile-backend/internal/maplefile/repo/collection/restore.go
+package collection
+
+import (
+	"context"
+	"fmt"
+	"time"
+
+	"github.com/gocql/gocql"
+	dom_collection "codeberg.org/mapleopentech/monorepo/cloud/maplefile-backend/internal/domain/collection"
+)
+
+func (impl *collectionRepositoryImpl) Restore(ctx context.Context, id gocql.UUID) error {
+	collection, err := impl.Get(ctx, id)
+	if err != nil {
+		return fmt.Errorf("failed to get collection for restore: %w", err)
+	}
+
+	if collection == nil {
+		return fmt.Errorf("collection not found")
+	}
+
+	// Validate state transition
+	if err := dom_collection.IsValidStateTransition(collection.State, dom_collection.CollectionStateActive); err != nil {
+		return fmt.Errorf("invalid state transition: %w", err)
+	}
+
+	// Update collection state
+	collection.State = dom_collection.CollectionStateActive
+	collection.ModifiedAt = time.Now()
+	collection.Version++
+	collection.TombstoneVersion = 0
+	collection.TombstoneExpiry = time.Time{}
+
+	return impl.Update(ctx, collection)
+}