#pragma once
#include "RegionFile.h"
#include "Reference.h"
#include "File.h"

class RegionFileCache
{
	friend class ConsoleSaveFileOriginal;
private:
	static const int MAX_CACHE_SIZE = 256;

	unordered_map<File, RegionFile *, FileKeyHash, FileKeyEq> cache;

	static RegionFileCache s_defaultCache;

public:
	// Made public and non-static so we can have a cache for input and output files
	RegionFileCache() {}

    RegionFile *_getRegionFile(ConsoleSaveFile *saveFile, const wstring &prefix, int chunkX, int chunkZ);		// 4J - TODO was synchronized
    void _clear();															// 4J - TODO was synchronized
    int _getSizeDelta(ConsoleSaveFile *saveFile, const wstring &prefix, int chunkX, int chunkZ);
    DataInputStream *_getChunkDataInputStream(ConsoleSaveFile *saveFile, const wstring &prefix, int chunkX, int chunkZ);
    DataOutputStream *_getChunkDataOutputStream(ConsoleSaveFile *saveFile, const wstring &prefix, int chunkX, int chunkZ);

	// Keep static version for general game usage
	static RegionFile *getRegionFile(ConsoleSaveFile *saveFile, const wstring &prefix, int chunkX, int chunkZ)						{ return s_defaultCache._getRegionFile(saveFile, prefix, chunkX, chunkZ); }
    static void clear()																												{ s_defaultCache._clear(); }
    static int getSizeDelta(ConsoleSaveFile *saveFile, const wstring &prefix, int chunkX, int chunkZ)								{ return s_defaultCache._getSizeDelta(saveFile, prefix, chunkX, chunkZ); }
    static DataInputStream *getChunkDataInputStream(ConsoleSaveFile *saveFile, const wstring &prefix, int chunkX, int chunkZ)		{ return s_defaultCache._getChunkDataInputStream(saveFile, prefix, chunkX, chunkZ); }
    static DataOutputStream *getChunkDataOutputStream(ConsoleSaveFile *saveFile, const wstring &prefix, int chunkX, int chunkZ)		{ return s_defaultCache._getChunkDataOutputStream(saveFile, prefix, chunkX, chunkZ); }

private:
	bool useSplitSaves(ESavePlatform platform);
};