// Copyright (c) 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 <util/fees.h>

#include <util/strencodings.h>

#include <cassert>

#include <optional>

#include <string_view>

std::string_view FeeRateEstimatorTypeToString(FeeRateEstimatorType feerate_estimator_type)

{

    switch (feerate_estimator_type) {

    case FeeRateEstimatorType::AUTO:

        return "auto";

    case FeeRateEstimatorType::BLOCK_POLICY:

        return "block_policy";

    case FeeRateEstimatorType::MEMPOOL_POLICY:

        return "mempool_policy";

    }

    // no default case, so the compiler can warn about missing cases

    assert(false);

}

std::optional<FeeRateEstimatorType> FeeRateEstimatorTypeFromString(std::string_view feerate_estimator_type)

{

    const auto normalized{ToLower(feerate_estimator_type)};

    if (normalized == "auto") return FeeRateEstimatorType::AUTO;

    if (normalized == "block_policy") return FeeRateEstimatorType::BLOCK_POLICY;

    if (normalized == "mempool_policy") return FeeRateEstimatorType::MEMPOOL_POLICY;

    return std::nullopt;

}