UniqueId.cpp

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/*
* True Reality Open Source Game and Simulation Engine
* Copyright © 2021 Acid Rain Studios LLC
*
* This library is free software; you can redistribute it and/or modify it under
* the terms of the GNU Lesser General Public License as published by the Free
* Software Foundation; either version 3.0 of the License, or (at your option)
* any later version.
*
* This library is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
* FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more
* details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this library; if not, write to the Free Software Foundation, Inc.,
* 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
* @author Maxim Serebrennik
*/

#include <trBase/UniqueId.h>

#include <trUtil/PlatformMacros.h>
#include <trUtil/Logging/Log.h>

#include <bID/uuid/random_generator.hpp>
#include <bID/uuid/string_generator.hpp>
#include <bID/uuid/nil_generator.hpp>
#include <bID/uuid/uuid.hpp>
#include <bID/uuid/uuid_io.hpp>

#include <iostream>

namespace trBase
{
    class implId
    {
    public:

        explicit implId(bool createNewId)
                : mGUID(bID::uuids::random_generator()())       //Create a random GUID
        {
            if (!createNewId)
            {
                //Create a NULL GUID
                mGUID = bID::uuids::nil_uuid();
            }
        }

        implId(const implId& toCopy)
                : mGUID(toCopy.mGUID)
                {
        }

        explicit implId(const std::string& toCopy)
                : mGUID(bID::uuids::string_generator()(toCopy))
                {
        }

        const std::string ToString() const
        {
            return bID::uuids::to_string(mGUID);
        }

        void FromString(const std::string& idString)
        {
            mGUID = bID::uuids::string_generator()(idString);
        }

        bool IsNull() const
        {
            return mGUID.is_nil();
        }

        uint8_t* GetData()
        {
            return mGUID.data;
        }

        implId& operator=(const implId& id)
        {
            if (this == &id)
            {
                return *this;
            }

            mGUID = id.mGUID;
            return *this;
        }

        implId& operator=(const implId* id)
        {
            if (this == id)
            {
                return *this;
            }

            mGUID = id->mGUID;
            return *this;
        }

        implId& operator=(const std::string& id)
        {
            mGUID = bID::uuids::string_generator()(id);
            return *this;
        }

        bool operator==(const implId & id) const
        {
            return mGUID == id.mGUID;
        }

        bool operator!=(const implId & id) const
        {
            return mGUID != id.mGUID;
        }

        bool operator<(const implId & id) const
        {
            return mGUID < id.mGUID;
        }

        bool operator>(const implId & id) const
        {
            return mGUID > id.mGUID;
        }

    private:
        bID::uuids::uuid mGUID;
    };

    const trUtil::RefStr UniqueId::CLASS_TYPE = trUtil::RefStr("trBase::UniqueId");

    UniqueId::UniqueId(bool createNewId)
    {
        mGUIDPtr = new implId(createNewId);
    }

    UniqueId::UniqueId(const UniqueId& toCopy) : BaseClass()
    {
        // Create a NULL ID then copy the passed in IDs bits.
        mGUIDPtr = new implId(false);
        for (int i = 0; i < 16; ++i)
        {
            mGUIDPtr->GetData()[i] = toCopy.mGUIDPtr->GetData()[i];
        }

    }

    UniqueId::UniqueId(const std::string& toCopy)
    {
        mGUIDPtr = new implId(toCopy);
    }

    UniqueId::~UniqueId()
    {
        if (mGUIDPtr)
        {
            delete mGUIDPtr;
            mGUIDPtr = nullptr;
        }
    }

    const std::string& UniqueId::GetType() const
    {
        return CLASS_TYPE;
    }

    const std::string UniqueId::ToString() const
    {
        return mGUIDPtr->ToString();
    }

    void UniqueId::FromString(const std::string& idString)
    {
        mGUIDPtr->FromString(idString);
    }

    bool UniqueId::IsNull() const
    {
        return mGUIDPtr->IsNull();
    }

    UniqueId& UniqueId::operator=(const UniqueId& id)
    {
        mGUIDPtr->operator= (*id.mGUIDPtr);
        return *this;
    }

    UniqueId& UniqueId::operator=(const UniqueId* id)
    {
        mGUIDPtr->operator= (id->mGUIDPtr);
        return *this;
    }

    UniqueId& UniqueId::operator=(const std::string& id)
    {
        mGUIDPtr->operator=(id);
        return *this;
    }

    bool UniqueId::operator==(const UniqueId & id) const
    {
        return mGUIDPtr->operator== (*id.mGUIDPtr);
    }

    bool UniqueId::operator!=(const UniqueId & id) const
    {
        return mGUIDPtr->operator!= (*id.mGUIDPtr);
    }

    bool UniqueId::operator<(const UniqueId & id) const
    {
        return mGUIDPtr->operator< (*id.mGUIDPtr);
    }

    bool UniqueId::operator>(const UniqueId & id) const
    {
        return mGUIDPtr->operator> (*id.mGUIDPtr);
    }

    std::ostream& operator << (std::ostream& o, const UniqueId& id)
    {
        o << id.ToString();
        return o;
    }

    std::istream& operator >> (std::istream& i, UniqueId& id)
    {
        std::string value;
        i >> value;
        id = value;
        return i;
    }
}