// Copyright (c) 2020-2022 The Bitcoin Core developers

// Distributed under the MIT software license, see the accompanying

// file COPYING or http://www.opensource.org/licenses/mit-license.php.

#include <node/mempool_persist.h>

#include <node/mempool_args.h>

#include <node/mempool_persist_args.h>

#include <test/fuzz/FuzzedDataProvider.h>

#include <test/fuzz/fuzz.h>

#include <test/fuzz/util.h>

#include <test/fuzz/util/mempool.h>

#include <test/util/setup_common.h>

#include <test/util/txmempool.h>

#include <txmempool.h>

#include <util/check.h>

#include <util/time.h>

#include <util/translation.h>

#include <validation.h>

#include <cstdint>

#include <vector>

using node::DumpMempool;

using node::LoadMempool;

using node::MempoolPath;

namespace {

const TestingSetup* g_setup;

} // namespace

void initialize_validation_load_mempool()

{

    static const auto testing_setup = MakeNoLogFileContext<const TestingSetup>();

    g_setup = testing_setup.get();

}

FUZZ_TARGET(validation_load_mempool, .init = initialize_validation_load_mempool)

{

    SeedRandomStateForTest(SeedRand::ZEROS);

    FuzzedDataProvider fuzzed_data_provider{buffer.data(), buffer.size()};

    SetMockTime(ConsumeTime(fuzzed_data_provider));

    FuzzedFileProvider fuzzed_file_provider{fuzzed_data_provider};

    bilingual_str error;

    CTxMemPool pool{MemPoolOptionsForTest(g_setup->m_node), error};

    Assert(error.empty());

    auto& chainstate{static_cast<DummyChainState&>(g_setup->m_node.chainman->ActiveChainstate())};

    chainstate.SetMempool(&pool);

    auto fuzzed_fopen = [&](const fs::path&, const char*) {

        return fuzzed_file_provider.open();

    };

    (void)LoadMempool(pool, MempoolPath(g_setup->m_args), chainstate,

                      {

                          .mockable_fopen_function = fuzzed_fopen,

                      });

    pool.SetLoadTried(true);

    (void)DumpMempool(pool, MempoolPath(g_setup->m_args), fuzzed_fopen, true);

}