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

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

@@ -0,0 +1,37 @@
+// monorepo/cloud/maplefile-backend/internal/maplefile/repo/collection/hierarchy.go
+package collection
+
+import (
+	"context"
+	"fmt"
+	"time"
+
+	"github.com/gocql/gocql"
+)
+
+func (impl *collectionRepositoryImpl) MoveCollection(
+	ctx context.Context,
+	collectionID,
+	newParentID gocql.UUID,
+	updatedAncestors []gocql.UUID,
+	updatedPathSegments []string,
+) error {
+	// Get the collection
+	collection, err := impl.Get(ctx, collectionID)
+	if err != nil {
+		return fmt.Errorf("failed to get collection: %w", err)
+	}
+
+	if collection == nil {
+		return fmt.Errorf("collection not found")
+	}
+
+	// Update hierarchy information
+	collection.ParentID = newParentID
+	collection.AncestorIDs = updatedAncestors
+	collection.ModifiedAt = time.Now()
+	collection.Version++
+
+	// Single update call handles all the complexity with the optimized schema
+	return impl.Update(ctx, collection)
+}