import type { Node } from 'web-tree-sitter';
import type { CommaNode } from './comma.js';
import type { NameNode } from './name.js';
import type { ValueNode } from './value.js';
const TYPE = 'object_field' as const;



// ================================================================
// ================================================================
//
//                           ObjectFieldNode
//
//        GraphQL object field node
//
// ================================================================
// ================================================================


/**
 * Represents a object field in the GraphQL AST.
 * 
 * Children:
 *   {@link CommaNode}, {@link NameNode}, {@link ValueNode}
 * 
 */
export interface ObjectFieldNode extends Node {
  type: typeof TYPE;
}


// ================================================================
// ================================================================
//
//                           Type Guard
//
// ================================================================
// ================================================================


/**
 * Type guard to check if a node is a {@link ObjectFieldNode}.
 * 
 * @param node - The node to check
 * @returns True if the node is a {@link ObjectFieldNode}
 * 
 * @example
 * ```typescript
 * if (isObjectFieldNode(node)) {
 *   // TypeScript now knows node is ObjectFieldNode
 *   console.log(node.type); // 'object_field'
 * }
 * ```
 */
export function isObjectFieldNode(node: unknown): node is ObjectFieldNode {
  return (node as any)?.type === TYPE;
}


// ================================================================
// ================================================================
//
//                           Constructor
//
// ================================================================
// ================================================================


/**
 * Creates a new {@link ObjectFieldNode} with the specified properties.
 * 
 * @param props - The node properties
 * @param props.comma - {@link CommaNode}
 * @param props.name - {@link NameNode}
 * @param props.value - {@link ValueNode}
 * @returns A new {@link ObjectFieldNode}
 * 
 * @example
 * ```typescript
 * const node = ObjectFieldNode({
 *   // properties...
 * });
 * ```
 */
export function ObjectFieldNode(props: Omit<ObjectFieldNode, 'type'>): ObjectFieldNode {
  return {
    type: TYPE,
    ...props
  };
}