import { GET_PROPERTIES } from '../../nested';
import type { NodeDef } from '../../NodeRegistry';
import { propertyPort } from '../../propertyPorts';
import { asEntity, type Value } from '../../values';
import { obj } from '../shared';

/** The plural of Get property: one output per property picked, the way Get variables reads. */
export const GetProperties: NodeDef = {
  type: GET_PROPERTIES,
  label: 'Get properties',
  category: 'data',
  description: 'Reads several properties (width, color, …) of an object at once, one output per property.',
  inputs: [obj('object')],
  outputs: [],
  params: [],
  declaresPorts: 'outputs',
  declaredPort: propertyPort,
  run: (_ctx, inputs, _params, def) => {
    const target = asEntity(inputs.object);
    const outputs: Record<string, Value> = {};
    for (const port of def.outputs) outputs[port.key] = target?.props[port.key] ?? null;
    return { outputs };
  },
};