// Copyright (C) 2024 Jérôme "SirLynix" Leclercq (lynix680@gmail.com)
// This file is part of the "Nazara Engine - Core module"
// For conditions of distribution and use, see copyright notice in Export.hpp

#include <Nazara/Core/EnumSerialization.hpp>

namespace Nz
{
	template<typename T>
	inline bool Serialize(SerializationContext& context, std::string_view name, const T& value)
	{
		return Serialize(context, name, value, TypeTag<std::decay_t<T>>());
	}

	template<typename T>
	bool Serialize(SerializationContext& context, std::string_view name, const T& value, TypeTag<T>)
	{
		if (!context.PushObject(name))
			return false;

		bool bRes = Serialize(context, value, TypeTag<std::decay_t<T>>());

		context.PopObject();
		return bRes;
	}

	/*!
	* \ingroup core
	* \brief Serializes a boolean
	* \return true if serialization succeeded
	*
	* \param context Context for the serialization
	* \param value Boolean to serialize
	*
	* \see Serialize, Unserialize
	*/
	inline bool Serialize(SerializationContext& context, std::string_view name, const bool& value, TypeTag<bool>)
	{
		return context.Write(name, value);
	}

	/*!
	* \ingroup core
	* \brief Serializes a std::string
	* \return true if successful
	*
	* \param context Context for the serialization
	* \param value String to serialize
	*/
	inline bool Serialize(SerializationContext& context, std::string_view name, const std::string& value, TypeTag<std::string>)
	{
		return context.Write(name, value);
	}

	inline bool Serialize(SerializationContext& context, std::string_view name, const std::filesystem::path& value, TypeTag<std::filesystem::path>)
	{
		std::string str = value.string();
		return context.Write(name, str);
	}

	template<typename T, size_t N>
	bool Serialize(SerializationContext& context, std::string_view name, const T(&values)[N])
	{
		if (!context.PushArray(name))
			return false;

		bool bRes = true;
		for (size_t i = 0; i < N; ++i)
		{
			if (!Serialize(context, "", values[i]))
				bRes = false;
		}

		context.PopArray();
		return bRes;
	}

	template<typename T, size_t N>
	bool Serialize(SerializationContext& context, std::string_view name, const std::array<T, N>& values)
	{
		if (!context.PushArray(name))
			return false;

		bool bRes = true;
		for (auto&& value : values)
		{
			if (!Serialize(context, "", value))
				bRes = false;
		}

		context.PopArray();
		return bRes;
	}

	template<typename T>
	bool Serialize(SerializationContext& context, std::string_view name, const std::vector<T>& values)
	{
		if (!context.PushArray(name))
			return false;

		bool bRes = true;
		for (auto&& value : values)
		{
			if (!Serialize(context, "", value))
				bRes = false;
		}

		context.PopArray();
		return bRes;
	}

	template<typename E, typename T>
	bool Serialize(SerializationContext& context, std::string_view name, const Nz::EnumArray<E, T>& values)
	{
		if (!context.PushArray(name))
			return false;

		bool bRes = true;
		for (auto&& value : values)
		{
			if (!Serialize(context, "", value))
				bRes = false;
		}

		context.PopArray();
		return bRes;
	}

	/*!
	* \ingroup core
	* \brief Serializes an arithmetic type
	* \return true if serialization succeeded
	*
	* \param context Context for the serialization
	* \param value Arithmetic type to serialize
	*
	* \see Serialize, Unserialize
	*/
	template<Numeric T>
	inline bool Serialize(SerializationContext& context, std::string_view name, const T&  value, TypeTag<T>)
	{
		return context.Write(name, value);
	}

	template<Enum T>
	inline bool Serialize(SerializationContext& context, std::string_view name, const T& value, TypeTag<T>)
	{
		switch (context.GetEnumSerializationMode())
		{
		case EnumSerializationMode::Binary:
			return Serialize(context, name, std::underlying_type_t<T>(value), TypeTag<std::decay_t<std::underlying_type_t<T>>>());
		case EnumSerializationMode::String:
			return Serialize(context, name, std::string(EnumToString(value)), TypeTag<std::string>());
		}
		return false;
	}


	template<typename T>
	inline bool Unserialize(SerializationContext& context, std::string_view name, T* value)
	{
		return Unserialize(context, name, value, TypeTag<std::decay_t<T>>());
	}

	template<typename T>
	bool Unserialize(SerializationContext& context, std::string_view name, T* value, TypeTag<T>)
	{
		if (!context.PushObject(name))
			return false;

		bool bRes = Unserialize(context, value, TypeTag<T>());

		context.PopObject();
		return bRes;
	}

	/*!
	* \ingroup core
	* \brief Unserializes a boolean
	* \return true if unserialization succedeed
	*
	* \param context Context for the unserialization
	* \param value Pointer to boolean to unserialize
	*
	* \see Serialize, Unserialize
	*/
	inline bool Unserialize(SerializationContext& context, std::string_view name, bool* value, TypeTag<bool>)
	{
		return context.Read(name, value);
	}

	/*!
	* \brief Unserializes a string
	* \return true if successful
	*
	* \param context Context of unserialization
	* \param string std::string to unserialize
	*/
	inline bool Unserialize(SerializationContext& context, std::string_view name, std::string* string, TypeTag<std::string>)
	{
		return context.Read(name, string);
	}

	inline bool Unserialize(SerializationContext& context, std::string_view name, std::filesystem::path* value, TypeTag<std::filesystem::path>)
	{
		std::string str;
		if (!context.Read(name, &str))
			return false;

		*value = str;
		return true;
	}

	template<typename T, size_t N>
	bool Unserialize(SerializationContext& context, std::string_view name, T(*values)[N])
	{
		if (!context.PushArray(name))
			return false;

		bool bRes = true;
		for (size_t i = 0; i < N; ++i)
		{
			if (!Unserialize(context, "", &(*values[i])))
				bRes = false;
		}

		context.PopArray();
		return bRes;
	}

	template<typename T, size_t N>
	bool Unserialize(SerializationContext& context, std::string_view name, std::array<T, N>* values)
	{
		if (!context.PushArray(name))
			return false;

		bool bRes = true;
		for (auto&& value : *values)
		{
			if (!Unserialize(context, "", &value))
				bRes = false;
		}

		context.PopArray();
		return bRes;
	}

	template<typename T>
	bool Unserialize(SerializationContext& context, std::string_view name, std::vector<T>* values)
	{
		if (!context.PushArray(name))
			return false;

		bool bRes = true;
		for (auto&& value : *values)
		{
			if (!Unserialize(context, "", &value))
				bRes = false;
		}

		context.PopArray();
		return bRes;
	}

	template<typename E, typename T>
	bool Unserialize(SerializationContext& context, std::string_view name, Nz::EnumArray<E, T>* values)
	{
		if (!context.PushArray(name))
			return false;

		bool bRes = true;
		for (auto&& value : *values)
		{
			if (!Unserialize(context, "", &value))
				bRes = false;
		}

		context.PopArray();
		return bRes;
	}

	/*!
	* \ingroup core
	* \brief Unserializes an arithmetic type
	* \return true if unserialization succedeed
	*
	* \param context Context for the unserialization
	* \param value Pointer to arithmetic type to serialize
	*
	* \remark Produce a NazaraAssert if pointer to value is invalid
	*
	* \see Serialize, Unserialize
	*/
	template<Numeric T>
	inline bool Unserialize(SerializationContext& context, std::string_view name, T* value, TypeTag<T>)
	{
		return context.Read(name, value);
	}

	template<Enum T>
	bool Unserialize(SerializationContext& context, std::string_view name, T* value, TypeTag<T>)
	{
		switch (context.GetEnumSerializationMode())
		{
		case EnumSerializationMode::Binary:
		{
			std::underlying_type_t<T> v = 0;
			if (!Unserialize(context, name, &v, TypeTag<std::decay_t<std::underlying_type_t<T>>>()))
				return false;

			*value = static_cast<T>(v);
			return true;
		}
		case EnumSerializationMode::String:
		{
			std::string str;
			if (!Unserialize(context, name, &str, TypeTag<std::string>()))
				return false;

			*value = EnumFromString<T>(str);
			return true;
		}
		}
		return false;
	}

	template<typename T>
	inline bool Serialize(SerializationContext& context, std::string_view name, const Flags<T>& flags, TypeTag<Flags<T>>)
	{
		return Serialize(context, name, static_cast<typename Flags<T>::BitField>(flags), TypeTag<std::decay_t<typename Flags<T>::BitField>>());
	}

	template<typename T>
	inline bool Unserialize(SerializationContext& context, std::string_view name, Flags<T>* flags, TypeTag<Flags<T>>)
	{
		typename Flags<T>::BitField v;
		if (Unserialize(context, name, &v, TypeTag<std::decay_t<typename Flags<T>::BitField>>()))
			*flags = v;
		return true;
	}
}