#ifndef PAK_FILE_H__
#define PAK_FILE_H__

#include <stdio.h>
#include <tchar.h>
#include "../../../LString.h"
#include "PakTypes.h"
#include <windows.h>
#include "pakHeader.h"
#include "FolderEntry.h"
#include "FileEntry.h"
#include "EntryInfo.h"
#include "../../../IDataStream.h"
#include <map>
#define PAK_VERSION 0x0100
#define PAK_MAX_OPEN_ENTRY 256

namespace LifeCore
{
	struct OpenEntryInfo
	{
		FileEntry* entry;
		int position;
	};
	typedef int PakEntryHandle;

	class  PakFile
	{
		enum PAK_MODE
		{
			PM_WRITE_ENTRY = 0,
			PM_READ_ENTRY = 1,
			PM_EDIT_ENTRY = 2,
			PM_IDLE = 3
		};

	public:
		PakFile(void);
		~PakFile(void);
		int Open(IDataStream* source);

		void Close();
		int filesCount();
		entry_info GetEntryInfo(int id);
		PakEntryHandle fopen(const String& name);
		int fread(PakEntryHandle entry, void* buffer, int length);
		int fwrite(PakEntryHandle entry, const void* buffer, int length);
		int ftell(PakEntryHandle entry);
		void fseek(PakEntryHandle entry, int position);
		void fclose(PakEntryHandle entry);
		int fget_size(PakEntryHandle entry);
	private:
		int curFilePosition;
		int curEntryId;
		int freeFileSlots;
		int freeFolderSlots;
		int currentMode;
		FolderEntry*  hFolders;
		FileEntry* hFiles;
		IDataStream* pFile;
		PakHeader header;
		void DumpExtraData();
		void DumpHeader();
		FileEntry* tmpEntry;

		void NewFolderEntry(const String& path);
		void NewFileEntry(const String& path);
		void DeleteFileEntry(const String& path);

		int LocateEntry(const String& name);
		int LocateEntry(int id);

		OpenEntryInfo openEntries[PAK_MAX_OPEN_ENTRY];
		int openEntriesCount;

		BOOL IsLastEntry(const FileEntry* entry);
	};
}

#endif