Value.h

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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
*/

#pragma once

#include <trUtil/Export.h>

#include <ostream>
#include <memory>
#include <vector>

// Forward declarations to avoid including Json/valu.h
namespace Json
{
    class Value;
}

namespace trUtil::JSON
{
    class Array;
    class Object;

    using Int = int;
    using UInt = unsigned int;
#if defined(JSON_NO_INT64)

    using LargestInt = int;
    using LargestUInt = unsigned int;
#else   // if defined(JSON_NO_INT64)
    // For Microsoft Visual use specific types as long long is not supported
#if defined(_MSC_VER) // Microsoft Visual Studio

    using Int64 = __int64;
    using UInt64 = unsigned __int64;
#else   // if defined(_MSC_VER) // Other platforms, use long long

    using  Int64 = int64_t;
    using  UInt64 = uint64_t;
#endif // if defined(_MSC_VER)

    using LargestInt = Int64;
    using LargestUInt = UInt64;
#endif // if defined(JSON_NO_INT64)

    enum ValueType
    {
        NullValue = 0,      
        IntValue = 1,       
        UintValue = 2,      
        RealValue = 3,      
        StringValue = 4,    
        BooleanValue = 5,   
        ArrayValue = 6,     
        ObjectValue = 7     
    };

    class TR_UTIL_EXPORT Value
    {
    public:

        using Members = std::vector<std::string>;

        Value(Json::Value& value);

        Value(ValueType type = NullValue);

        Value(Int value);

        Value(UInt value);

        Value(Int64 value);

        Value(UInt64 value);

        Value(double value);

        Value(const char* value); 

        Value(const char* begin, const char* end); 

        Value(const std::string& value); 

        Value(bool value);

        Value(const Value& other);

        //Value(Value&& other);

        ~Value();

        Json::Value& GetJsonValue();

        const Json::Value& GetJsonValue() const;

        void SetComment(const std::string& comment);

        bool HasComment() const;

        std::string GetComment() const;

        virtual void Clear();

        int Size();

        void Resize(int newSize);

        bool IsValidIndex(int index) const;

        bool RemoveIndex(int index, Value *removedVal);

        Value Index(int index);

        const Value::Members GetMemberNames() const;

        bool HasMember(const std::string& key) const;

        virtual bool KeyPresent(const std::string &key) const;

        virtual bool IsNull() const;

        virtual bool IsNull(const int index) const;

        virtual bool IsNull(const std::string& key) const;

        virtual void SetNull(const std::string& key) const;

        virtual bool IsEmpty() const;

        virtual bool IsEmpty(const int index) const;

        virtual bool IsEmpty(const std::string& key) const;

        virtual void Append(const Value& val);

        virtual bool IsBool() const;

        virtual bool IsBool(const int index) const;

        virtual bool IsBool(const std::string& key) const;

        virtual bool GetBool() const;

        virtual bool GetBool(const int index) const;

        virtual bool GetBool(const std::string& key) const;

        virtual void SetBool(const std::string& key, bool value);

        virtual bool IsNumber() const;

        virtual bool IsNumber(const int index) const;

        virtual bool IsNumber(const std::string& key) const;

        virtual bool IsInt() const;

        virtual bool IsInt(const int index) const;

        virtual bool IsInt(const std::string& key) const;

        virtual int GetInt() const;

        virtual int GetInt(const int index) const;

        virtual int GetInt(const std::string& key) const;

        virtual void SetInt(const std::string& key, int value);

        virtual bool IsDouble() const;

        virtual bool IsDouble(const int index) const;

        virtual bool IsDouble(const std::string& key) const;

        virtual double GetDouble() const;

        virtual double GetDouble(const int index) const;

        virtual double GetDouble(const std::string& key) const;

        virtual void SetDouble(const std::string& key, double value);

        virtual bool IsUInt() const;

        virtual bool IsUInt(const int index) const;

        virtual bool IsUInt(const std::string& key) const;

        virtual unsigned int GetUInt() const;

        virtual unsigned int GetUInt(const int index) const;

        virtual unsigned int GetUInt(const std::string& key) const;

        virtual void SetUInt(const std::string& key, unsigned int value);

        virtual bool IsInt64() const;

        virtual bool IsInt64(const int index) const;

        virtual bool IsInt64(const std::string& key) const;

        virtual Int64 GetInt64() const;

        virtual Int64 GetInt64(const int index) const;

        virtual Int64 GetInt64(const std::string& key) const;

        virtual void SetInt64(const std::string& key, Int64 value);

        virtual bool IsUInt64() const;

        virtual bool IsUInt64(const int index) const;

        virtual bool IsUInt64(const std::string& key) const;

        virtual UInt64 GetUInt64() const;

        virtual UInt64 GetUInt64(const int index) const;

        virtual UInt64 GetUInt64(const std::string& key) const;

        virtual void SetUInt64(const std::string& key, UInt64 value);

        virtual bool IsFloat() const;

        virtual bool IsFloat(const int index) const;

        virtual bool IsFloat(const std::string& key) const;

        virtual float GetFloat() const;

        virtual float GetFloat(const int index) const;

        virtual float GetFloat(const std::string& key) const;

        virtual void SetFloat(const std::string& key, float value);

        virtual bool IsString() const;

        virtual bool IsString(const int index) const;

        virtual bool IsString(const std::string& key) const;

        virtual const std::string GetString() const;

        virtual const std::string GetString(const int index) const;

        virtual const std::string GetString(const std::string& key) const;

        virtual void SetString(const std::string& key, const std::string& value);

        virtual bool IsArray() const;

        virtual bool IsArray(const int index) const;

        virtual bool IsArray(const std::string& key) const;

        virtual const Array GetArray() const;

        virtual const Array GetArray(const int index) const;

        virtual const Array GetArray(const std::string& key) const;

        virtual void SetArray(const std::string& key, Array& value);

        virtual bool IsObject() const;

        virtual bool IsObject(const int index) const;

        virtual bool IsObject(const std::string& key) const;

        virtual const Object GetObject() const;

        virtual const Object GetObject(const int index) const;

        virtual const Object GetObject(const std::string& key) const;

        virtual void SetObject(const std::string& key, Object& value);

        operator Json::Value() const;

        operator Json::Value& ();

        operator const Json::Value& () const;

        operator Json::Value* ();

        //Value operator[](int index);

        //const Value operator[](int index) const;

        //Value operator[](const char* key);

        //const Value operator[](const char* key) const;

        //Value operator[](const std::string& key);

        Value& operator=(Value other);

    protected:

        bool clearInternalVal = true;
        Json::Value* mValuePtr = nullptr;
    };

    TR_UTIL_EXPORT std::ostream& operator<<(std::ostream&, const Value& root);
}