// Copyright (c) 2017-2018, The Monero Project
// 
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// permitted provided that the following conditions are met:
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// 1. Redistributions of source code must retain the above copyright notice, this list of
//    conditions and the following disclaimer.
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// 2. Redistributions in binary form must reproduce the above copyright notice, this list
//    of conditions and the following disclaimer in the documentation and/or other
//    materials provided with the distribution.
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#include "include_base_utils.h"
#include "file_io_utils.h"
#include "cryptonote_basic/blobdatatype.h"
#include "cryptonote_basic/cryptonote_basic.h"
#include "cryptonote_basic/cryptonote_format_utils.h"
#include "wallet/wallet2.h"
#include "fuzzer.h"

class ColdTransactionFuzzer: public Fuzzer
{
public:
  ColdTransactionFuzzer(): wallet(cryptonote::TESTNET) {}
  virtual int init();
  virtual int run(const std::string &filename);

private:
  tools::wallet2 wallet;
};


int ColdTransactionFuzzer::init()
{
  static const char * const spendkey_hex = "0b4f47697ec99c3de6579304e5f25c68b07afbe55b71d99620bf6cbf4e45a80f";
  crypto::secret_key spendkey;
  epee::string_tools::hex_to_pod(spendkey_hex, spendkey);

  try
  {
    wallet.init("", boost::none, boost::asio::ip::tcp::endpoint{}, 0, true, epee::net_utils::ssl_support_t::e_ssl_support_disabled);
    wallet.set_subaddress_lookahead(1, 1);
    wallet.generate("", "", spendkey, true, false);
  }
  catch (const std::exception &e)
  {
    std::cerr << "Error on ColdTransactionFuzzer::init: " << e.what() << std::endl;
    return 1;
  }
  return 0;
}

int ColdTransactionFuzzer::run(const std::string &filename)
{
  std::string s;

  if (!epee::file_io_utils::load_file_to_string(filename, s))
  {
    std::cout << "Error: failed to load file " << filename << std::endl;
    return 1;
  }
  s = std::string("\x01\x16serialization::archive") + s;
  try
  {
    tools::wallet2::unsigned_tx_set exported_txs;
    std::stringstream iss;
    iss << s;
    boost::archive::portable_binary_iarchive ar(iss);
    ar >> exported_txs;
    std::vector<tools::wallet2::pending_tx> ptx;
    bool success = wallet.sign_tx(exported_txs, "/tmp/cold-transaction-test-signed", ptx);
    std::cout << (success ? "signed" : "error") << std::endl;
  }
  catch (const std::exception &e)
  {
    std::cerr << "Failed to sign transaction: " << e.what() << std::endl;
    return 1;
  }
  return 0;
}

int main(int argc, const char **argv)
{
  TRY_ENTRY();
  ColdTransactionFuzzer fuzzer;
  return run_fuzzer(argc, argv, fuzzer);
  CATCH_ENTRY_L0("main", 1);
}
