/*
 * Copyright 2019 ConsenSys AG.
 *
 * Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with
 * the License. You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on
 * an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the
 * specific language governing permissions and limitations under the License.
 */
package tech.pegasys.pantheon.ethereum.graphql.internal.pojoadapter;

import tech.pegasys.pantheon.ethereum.core.Account;
import tech.pegasys.pantheon.ethereum.core.Address;
import tech.pegasys.pantheon.util.bytes.Bytes32;
import tech.pegasys.pantheon.util.bytes.BytesValue;
import tech.pegasys.pantheon.util.uint.UInt256;

import java.util.Optional;

import graphql.schema.DataFetchingEnvironment;

@SuppressWarnings("unused") // reflected by GraphQL
public class AccountAdapter extends AdapterBase {
  private final Account account;

  public AccountAdapter(final Account account) {
    this.account = account;
  }

  public Optional<Address> getAddress() {
    return Optional.of(account.getAddress());
  }

  public Optional<UInt256> getBalance() {
    return Optional.of(account.getBalance().asUInt256());
  }

  public Optional<Long> getTransactionCount() {
    return Optional.of(account.getNonce());
  }

  public Optional<BytesValue> getCode() {
    return Optional.of(account.getCode());
  }

  public Optional<Bytes32> getStorage(final DataFetchingEnvironment environment) {
    final Bytes32 slot = environment.getArgument("slot");
    return Optional.of(account.getStorageValue(slot.asUInt256()).getBytes());
  }
}
