import {
  AbiMessage,
  ContractExecResult,
  DecodedResult,
  Registry,
} from '../../types/mod.js';

export function decodeContractExecResult<T>(
  result: ContractExecResult['result'],
  message: AbiMessage,
  registry: Registry,
): DecodedResult<T> {
  if (result.isErr) return { ok: false, error: result.asErr };
  if (!message.returnType) return { ok: false, error: undefined };

  const raw = registry.createTypeUnsafe(
    message.returnType.lookupName || message.returnType.type,
    [result.asOk.data.toU8a(true)],
    { isPedantic: true },
  );

  return { ok: true, value: (raw.toHuman() as Record<'Ok', T>).Ok };
}