Set Node Type Operation

interface SetNodeTypeOperation extends Operation {
  type: 'setNodeType';
  path: Path;
  nodeType: string; // New node type
  previousType?: string; // Store previous type for undo
  attributes?: Record<string, any>; // Optional new attributes
  previousAttributes?: Record<string, any>; // Store previous attributes
}

// Convert paragraph to heading
function paragraphToHeading(editor: Editor, paragraphPath: Path, level: number) {
  const node = editor.getNodeAtPath(paragraphPath);
  
  const operation: SetNodeTypeOperation = {
    type: 'setNodeType',
    path: paragraphPath,
    nodeType: 'heading',
    previousType: node.type,
    attributes: { level },
    previousAttributes: node.attributes
  };
  
  editor.applyOperation(operation);
}

// Convert heading to paragraph
function headingToParagraph(editor: Editor, headingPath: Path) {
  const node = editor.getNodeAtPath(headingPath);
  
  const operation: SetNodeTypeOperation = {
    type: 'setNodeType',
    path: headingPath,
    nodeType: 'paragraph',
    previousType: node.type,
    previousAttributes: node.attributes
  };
  
  editor.applyOperation(operation);
}

// Change heading level
function changeHeadingLevel(editor: Editor, headingPath: Path, newLevel: number) {
  const node = editor.getNodeAtPath(headingPath);
  
  const operation: SetNodeTypeOperation = {
    type: 'setNodeType',
    path: headingPath,
    nodeType: 'heading', // Same type
    previousType: node.type,
    attributes: { level: newLevel },
    previousAttributes: { level: node.attributes.level }
  };
  
  editor.applyOperation(operation);
}

// Convert list item to paragraph
function listItemToParagraph(editor: Editor, itemPath: Path) {
  const node = editor.getNodeAtPath(itemPath);
  
  const operation: SetNodeTypeOperation = {
    type: 'setNodeType',
    path: itemPath,
    nodeType: 'paragraph',
    previousType: node.type,
    previousAttributes: node.attributes
  };
  
  editor.applyOperation(operation);
}

function getInverse(operation: SetNodeTypeOperation): SetNodeTypeOperation {
  return {
    type: 'setNodeType',
    path: operation.path,
    nodeType: operation.previousType!,
    previousType: operation.nodeType,
    attributes: operation.previousAttributes,
    previousAttributes: operation.attributes
  };
}