import type { TypedDataDefinition } from "viem";
import { TypedDataDefinition as TTypedDataDefinition } from "./schemas.js";
import { z } from "./zod.js";

/* Encodes TypedDataDefinition to a JSON-safe format */
export const formatTypedData = (
  typedData: TypedDataDefinition,
): z.input<typeof TTypedDataDefinition> => {
  // viem's TypedDataDefinition uses readonly arrays; our Zod schema uses
  // mutable ones.  The structures are identical at runtime, so the minimal
  // cast bridges the variance gap without lying about the shape.
  return TTypedDataDefinition.encode(
    typedData as unknown as z.output<typeof TTypedDataDefinition>,
  );
};