import type {
  FreeformExtension,
  ManifestFieldDefinition,
} from "@solspace/freeform-core";
import { PACKAGE_VERSION } from "../version.js";

function supportsCalculation(field: ManifestFieldDefinition): boolean {
  return (
    field.type === "calculation" ||
    field.frontend?.extension === "calculation" ||
    field.frontend?.renderer === "calculation"
  );
}

/**
 * Registers the calculation extension required by manifests that include
 * calculation fields. Live evaluation is handled by @solspace/freeform-react
 * (and evaluateCalculation from @solspace/freeform-core).
 */
export function createCalculationExtension(): FreeformExtension {
  return {
    name: "calculation",
    version: PACKAGE_VERSION,
    supports: supportsCalculation,
  };
}

export const calculationExtension = createCalculationExtension();