rippled/include/xrpl/protocol/STXChainBridge.h

#ifndef XRPL_PROTOCOL_STXCHAINBRIDGE_H_INCLUDED
#define XRPL_PROTOCOL_STXCHAINBRIDGE_H_INCLUDED

#include <xrpl/basics/CountedObject.h>
#include <xrpl/protocol/STAccount.h>
#include <xrpl/protocol/STBase.h>
#include <xrpl/protocol/STIssue.h>

namespace ripple {

class Serializer;
class STObject;

class STXChainBridge final : public STBase, public CountedObject<STXChainBridge>
{
    STAccount lockingChainDoor_{sfLockingChainDoor};
    STIssue lockingChainIssue_{sfLockingChainIssue};
    STAccount issuingChainDoor_{sfIssuingChainDoor};
    STIssue issuingChainIssue_{sfIssuingChainIssue};

public:
    using value_type = STXChainBridge;

    enum class ChainType { locking, issuing };

    static ChainType
    otherChain(ChainType ct);

    static ChainType
    srcChain(bool wasLockingChainSend);

    static ChainType
    dstChain(bool wasLockingChainSend);

    STXChainBridge();

    explicit STXChainBridge(SField const& name);

    STXChainBridge(STXChainBridge const& rhs) = default;

    STXChainBridge(STObject const& o);

    STXChainBridge(
        AccountID const& srcChainDoor,
        Issue const& srcChainIssue,
        AccountID const& dstChainDoor,
        Issue const& dstChainIssue);

    explicit STXChainBridge(Json::Value const& v);

    explicit STXChainBridge(SField const& name, Json::Value const& v);

    explicit STXChainBridge(SerialIter& sit, SField const& name);

    STXChainBridge&
    operator=(STXChainBridge const& rhs) = default;

    std::string
    getText() const override;

    STObject
    toSTObject() const;

    AccountID const&
    lockingChainDoor() const;

    Issue const&
    lockingChainIssue() const;

    AccountID const&
    issuingChainDoor() const;

    Issue const&
    issuingChainIssue() const;

    AccountID const&
    door(ChainType ct) const;

    Issue const&
    issue(ChainType ct) const;

    SerializedTypeID
    getSType() const override;

    Json::Value getJson(JsonOptions) const override;

    void
    add(Serializer& s) const override;

    bool
    isEquivalent(STBase const& t) const override;

    bool
    isDefault() const override;

    value_type const&
    value() const noexcept;

private:
    static std::unique_ptr<STXChainBridge>
    construct(SerialIter&, SField const& name);

    STBase*
    copy(std::size_t n, void* buf) const override;
    STBase*
    move(std::size_t n, void* buf) override;

    friend bool
    operator==(STXChainBridge const& lhs, STXChainBridge const& rhs);

    friend bool
    operator<(STXChainBridge const& lhs, STXChainBridge const& rhs);
};

inline bool
operator==(STXChainBridge const& lhs, STXChainBridge const& rhs)
{
    return std::tie(
               lhs.lockingChainDoor_,
               lhs.lockingChainIssue_,
               lhs.issuingChainDoor_,
               lhs.issuingChainIssue_) ==
        std::tie(
               rhs.lockingChainDoor_,
               rhs.lockingChainIssue_,
               rhs.issuingChainDoor_,
               rhs.issuingChainIssue_);
}

inline bool
operator<(STXChainBridge const& lhs, STXChainBridge const& rhs)
{
    return std::tie(
               lhs.lockingChainDoor_,
               lhs.lockingChainIssue_,
               lhs.issuingChainDoor_,
               lhs.issuingChainIssue_) <
        std::tie(
               rhs.lockingChainDoor_,
               rhs.lockingChainIssue_,
               rhs.issuingChainDoor_,
               rhs.issuingChainIssue_);
}

inline AccountID const&
STXChainBridge::lockingChainDoor() const
{
    return lockingChainDoor_.value();
};

inline Issue const&
STXChainBridge::lockingChainIssue() const
{
    return lockingChainIssue_.value().get<Issue>();
};

inline AccountID const&
STXChainBridge::issuingChainDoor() const
{
    return issuingChainDoor_.value();
};

inline Issue const&
STXChainBridge::issuingChainIssue() const
{
    return issuingChainIssue_.value().get<Issue>();
};

inline STXChainBridge::value_type const&
STXChainBridge::value() const noexcept
{
    return *this;
}

inline AccountID const&
STXChainBridge::door(ChainType ct) const
{
    if (ct == ChainType::locking)
        return lockingChainDoor();
    return issuingChainDoor();
}

inline Issue const&
STXChainBridge::issue(ChainType ct) const
{
    if (ct == ChainType::locking)
        return lockingChainIssue();
    return issuingChainIssue();
}

inline STXChainBridge::ChainType
STXChainBridge::otherChain(ChainType ct)
{
    if (ct == ChainType::locking)
        return ChainType::issuing;
    return ChainType::locking;
}

inline STXChainBridge::ChainType
STXChainBridge::srcChain(bool wasLockingChainSend)
{
    if (wasLockingChainSend)
        return ChainType::locking;
    return ChainType::issuing;
}

inline STXChainBridge::ChainType
STXChainBridge::dstChain(bool wasLockingChainSend)
{
    if (wasLockingChainSend)
        return ChainType::issuing;
    return ChainType::locking;
}

}  // namespace ripple

#endif