config.h

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// Copyright (c) 2017 Amaury SÉCHET
// Distributed under the MIT software license, see the accompanying
// file COPYING or http://www.opensource.org/licenses/mit-license.php.

#ifndef BITCOIN_CONFIG_H
#define BITCOIN_CONFIG_H

#include <amount.h>
#include <feerate.h>

#include <boost/noncopyable.hpp>

#include <cstdint>
#include <memory>
#include <string>

class CChainParams;

class Config : public boost::noncopyable {
public:
    virtual bool SetMaxBlockSize(uint64_t maxBlockSize) = 0;
    virtual uint64_t GetMaxBlockSize() const = 0;
    virtual const CChainParams &GetChainParams() const = 0;
    virtual void SetCashAddrEncoding(bool) = 0;
    virtual bool UseCashAddrEncoding() const = 0;

    virtual void SetExcessUTXOCharge(Amount amt) = 0;
    virtual Amount GetExcessUTXOCharge() const = 0;
};

class GlobalConfig final : public Config {
public:
    GlobalConfig();
    bool SetMaxBlockSize(uint64_t maxBlockSize) override;
    uint64_t GetMaxBlockSize() const override;
    const CChainParams &GetChainParams() const override;
    void SetCashAddrEncoding(bool) override;
    bool UseCashAddrEncoding() const override;

    void SetExcessUTXOCharge(Amount) override;
    Amount GetExcessUTXOCharge() const override;

private:
    bool useCashAddr;
    Amount excessUTXOCharge;

    uint64_t nMaxBlockSize;
};

// Dummy for subclassing in unittests
class DummyConfig : public Config {
public:
    DummyConfig();
    explicit DummyConfig(std::string net);
    explicit DummyConfig(std::unique_ptr<CChainParams> chainParamsIn);
    bool SetMaxBlockSize(uint64_t maxBlockSize) override { return false; }
    uint64_t GetMaxBlockSize() const override { return 0; }

    void SetChainParams(std::string net);
    const CChainParams &GetChainParams() const override { return *chainParams; }

    void SetCashAddrEncoding(bool) override {}
    bool UseCashAddrEncoding() const override { return false; }

    void SetExcessUTXOCharge(Amount amt) override {}
    Amount GetExcessUTXOCharge() const override { return Amount::zero(); }

private:
    std::unique_ptr<CChainParams> chainParams;
};

// Temporary woraround.
const Config &GetConfig();

#endif // BITCOIN_CONFIG_H