Method buildComponentNode

ui/src/protocol/message-processor.ts:599–635

* Build a component node recursively * In streaming mode, tracks pending components that are not yet defined

(
    definition: ComponentDefinition,
    surface: Surface,
    visited: Set<string>,
    streamingState?: StreamingState,
  )

   * In streaming mode, tracks pending components that are not yet defined
   */
  private buildComponentNode(
    definition: ComponentDefinition,
    surface: Surface,
    visited: Set<string>,
    streamingState?: StreamingState,
  ): AnyComponentNode | null {
    // Cycle detection
    if (visited.has(definition.id)) {
      console.warn(`Circular reference detected for component ${definition.id}.`);
      return null;
    }
    visited.add(definition.id);

    const typeName = getComponentTypeName(definition.component);
    const props = getComponentProps<Record<string, unknown>>(definition.component);

    // Resolve property values
    const resolvedProps = this.resolveProps(props, surface.dataModel);

    // Build children
    const children = this.buildChildren(props, surface, visited, streamingState);

    // Track rendered component in streaming state
    if (streamingState) {
      streamingState.renderedComponentIds.add(definition.id);
    }

    // Remove from visited after processing (allow same component in different branches)
    visited.delete(definition.id);

    return {
      id: definition.id,
      type: typeName,
      props: resolvedProps,
      children: children.length > 0 ? children : undefined,
    };
  }

  /**
   * Resolve property values from data model