// Copyright (c) 2020-2021 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 <common/messages.h>

#include <consensus/amount.h>

#include <policy/fees.h>

#include <test/fuzz/FuzzedDataProvider.h>

#include <test/fuzz/fuzz.h>

#include <test/fuzz/util.h>

#include <cstdint>

#include <string>

#include <vector>

using common::StringForFeeReason;

FUZZ_TARGET(fees)

{

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

    const CFeeRate minimal_incremental_fee{ConsumeMoney(fuzzed_data_provider)};

    FastRandomContext rng{/*fDeterministic=*/true};

    FeeFilterRounder fee_filter_rounder{minimal_incremental_fee, rng};

    LIMITED_WHILE(fuzzed_data_provider.ConsumeBool(), 10000) {

        const CAmount current_minimum_fee = ConsumeMoney(fuzzed_data_provider);

        const CAmount rounded_fee = fee_filter_rounder.round(current_minimum_fee);

        assert(MoneyRange(rounded_fee));

    }

    const FeeReason fee_reason = fuzzed_data_provider.PickValueInArray({FeeReason::NONE, FeeReason::HALF_ESTIMATE, FeeReason::FULL_ESTIMATE, FeeReason::DOUBLE_ESTIMATE, FeeReason::CONSERVATIVE, FeeReason::MEMPOOL_MIN, FeeReason::PAYTXFEE, FeeReason::FALLBACK, FeeReason::REQUIRED});

    (void)StringForFeeReason(fee_reason);

}