// ResMan.h
//

// Author:			Lea Hayes
// Date Created:	10/03/2006
// Date Modified:	24/03/2006

// Description:		This resource manager has been designed to simplify
//					resource management. In-order to utilise resource
//					management on a custom resource type the specific
//					resource interface must be derived upon.
//

#pragma once

#include "ResArray.h"


// Predefined unique resource IDs:


namespace Resources
{


const DWORD DIRECTX_TEXTURE			= 1U;
const DWORD DIRECTX_OBJECTX			= 2U;
const DWORD DIRECTX_FONT			= 3U;
const DWORD DIRECTX_SOUNDFX			= 4U;
const DWORD DIRECTX_MUSIC			= 5U;


class ResourceManager
{
// Private construction prevents any further instantiation.
private:
	ResourceManager();

// Destruction.
public:
	virtual ~ResourceManager();

	static void Destroy();

// Resource handle.
	typedef ResArrayHandle ResHandle;

	static const ResHandle NullHandle;


// File and path management.
	static bool CheckFilePath(LPCSTR lpszFilePath);
	static LPCSTR ResolveFilePath(LPCSTR lpszFilename,
		LPCSTR lpszResFolder = NULL);


// Resource management.
	static HRESULT PreloadTexture(LPCSTR lpszFilename);
	static HRESULT PreloadObjectX(LPCSTR lpszFilename);
	static HRESULT PreloadFont(LPCSTR lpszFontName, INT nHeight, UINT nWidth,
		bool bBold, bool bItalic, UINT nMipLevels, LPCSTR lpszTypeFace);

	static void AppendCustom(LPRESOURCE pCustomRes);

	static ResHandle AquireTexture(LPCSTR lpszFilename);
	static ResHandle AquireObjectX(LPCSTR lpszFilename);
	static ResHandle AquireFont(LPCSTR lpszFontName, INT nHeight, UINT nWidth,
		bool bBold, bool bItalic, UINT nMipLevels, LPCSTR lpszTypeFace);

	static inline ResHandle AquireFirstCustom(LPCSTR lpszFilename)
	{
		return m_sGlobal.m_arCustom.Aquire(lpszFilename);
	}
	static inline ResHandle AquireFirstCustom(DWORD dwUniqueID)
	{
		return m_sGlobal.m_arCustom.Aquire(dwUniqueID);
	}
	static inline ResHandle AquireCustomByIndex(size_t nIndex)
	{
		return m_sGlobal.m_arCustom.AquireByIndex(nIndex);
	}

	inline static ResHandle AquireNextCustom(const ResHandle& prev,
											 LPCSTR lpszFilename)
	{
		return m_sGlobal.m_arCustom.AquireNext(prev, lpszFilename);
	}
	inline static ResHandle AquireNextCustom(const ResHandle& prev,
											 DWORD dwUniqueID)
	{
		return m_sGlobal.m_arCustom.AquireNext(prev, dwUniqueID);
	}

	static inline void Release(ResHandle &handle)
	{
		handle->Release();
		handle = NullHandle;
	}

// Properties.
	static void EnableAutoFreeUnused(bool bEnable = true);

	static inline LPDIRECT3DDEVICE9 GetActiveDevice()
	{
		return m_sGlobal.m_pDevice;
	}
	static inline void SetActiveDevice(LPDIRECT3DDEVICE9 pDevice)
	{
		m_sGlobal.m_pDevice = pDevice;
	}

// Attributes.
private:
	ResourceArray m_arDirectX;
	ResourceArray m_arCustom;

	LPDIRECT3DDEVICE9 m_pDevice;

	// The one and only resource manager.
	static ResourceManager m_sGlobal;
};


// The following macro will improve upon the readability of derived
// source. Also the definition abstracts other programmers from the
// DMA which is occuring here.
//

#define CREATE_RESOURCE(class_name) \
	new class_name

#define OPEN_RESOURCE(class_name, filename) \
	new class_name(filename)


// Proposed Usage:
//		ResourceManager::CreateEntity(CREATE_RESOURCE(MyEntity));
//


}; // namespace Resources