/* ScummVM - Graphic Adventure Engine
 *
 * ScummVM is the legal property of its developers, whose names
 * are too numerous to list here. Please refer to the COPYRIGHT
 * file distributed with this source distribution.
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * as published by the Free Software Foundation; either version 2
 * of the License, or (at your option) any later version.

 * This program 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 General Public License for more details.

 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
 *
 * $URL$
 * $Id$
 *
 */

#ifndef KYRA_RESOURCE_H
#define KYRA_RESOURCE_H


#include "common/scummsys.h"
#include "common/str.h"
#include "common/file.h"
#include "common/list.h"
#include "common/hash-str.h"
#include "common/hashmap.h"
#include "common/stream.h"
#include "common/ptr.h"
#include "common/archive.h"

#include "kyra/kyra_v1.h"
#include "kyra/kyra_hof.h"
#include "kyra/lol.h"

namespace Kyra {

class Resource;

class ResArchiveLoader;

class Resource {
public:
	Resource(KyraEngine_v1 *vm);
	~Resource();

	bool reset();

	bool loadPakFile(Common::String filename);
	bool loadPakFile(Common::String name, Common::SharedPtr<Common::ArchiveMember> file);

	void unloadPakFile(Common::String filename, bool remFromCache = false);

	bool isInPakList(Common::String filename);

	bool isInCacheList(Common::String name);

	bool loadFileList(const Common::String &filedata);
	bool loadFileList(const char * const *filelist, uint32 numFiles);

	// This unloads *all* pakfiles, even kyra.dat and protected ones.
	// It does not remove files from cache though!
	void unloadAllPakFiles();

	void listFiles(const Common::String &pattern, Common::ArchiveMemberList &list);

	bool exists(const char *file, bool errorOutOnFail=false);
	uint32 getFileSize(const char *file);
	uint8* fileData(const char *file, uint32 *size);
	Common::SeekableReadStream *createReadStream(const Common::String &file);

	bool loadFileToBuf(const char *file, void *buf, uint32 maxSize);
protected:
	typedef Common::HashMap<Common::String, Common::Archive*, Common::CaseSensitiveString_Hash, Common::CaseSensitiveString_EqualTo> ArchiveMap;
	ArchiveMap _archiveCache;

	Common::SearchSet _files;
	Common::SearchSet _archiveFiles;
	Common::SearchSet _protectedFiles;

	Common::Archive *loadArchive(const Common::String &name, Common::SharedPtr<Common::ArchiveMember> member);
	Common::Archive *loadInstallerArchive(const Common::String &file, const Common::String &ext, const uint8 offset);

	bool loadProtectedFiles(const char * const * list);

	void initializeLoaders();

	typedef Common::List<Common::SharedPtr<ResArchiveLoader> > LoaderList;
	LoaderList _loaders;

	KyraEngine_v1 *_vm;
};

enum kKyraResources {
	kLoadAll = -1,

	k1ForestSeq,
	k1KallakWritingSeq,
	k1KyrandiaLogoSeq,
	k1KallakMalcolmSeq,
	k1MalcolmTreeSeq,
	k1WestwoodLogoSeq,

	k1Demo1Seq,
	k1Demo2Seq,
	k1Demo3Seq,
	k1Demo4Seq,

	k1AmuleteAnimSeq,

	k1OutroReunionSeq,

	k1IntroCPSStrings,
	k1IntroCOLStrings,
	k1IntroWSAStrings,
	k1IntroStrings,

	k1OutroHomeString,

	k1RoomFilenames,
	k1RoomList,

	k1CharacterImageFilenames,

	k1ItemNames,
	k1TakenStrings,
	k1PlacedStrings,
	k1DroppedStrings,
	k1NoDropStrings,

	k1PutDownString,
	k1WaitAmuletString,
	k1BlackJewelString,
	k1PoisonGoneString,
	k1HealingTipString,
	k1WispJewelStrings,
	k1MagicJewelStrings,

	k1ThePoisonStrings,
	k1FluteStrings,

	k1FlaskFullString,
	k1FullFlaskString,

	k1VeryCleverString,
	k1NewGameString,

	k1DefaultShapes,
	k1Healing1Shapes,
	k1Healing2Shapes,
	k1PoisonDeathShapes,
	k1FluteShapes,
	k1Winter1Shapes,
	k1Winter2Shapes,
	k1Winter3Shapes,
	k1DrinkShapes,
	k1WispShapes,
	k1MagicAnimShapes,
	k1BranStoneShapes,

	k1PaletteList,

	k1GUIStrings,
	k1ConfigStrings,

	k1AudioTracks,
	k1AudioTracksIntro,

	k1TownsSFXwdTable,
	k1TownsSFXbtTable,
	k1TownsCDATable,
	k1CreditsStrings,

	k2SeqplayPakFiles,
	k2SeqplayCredits,
	k2SeqplayCreditsSpecial,
	k2SeqplayStrings,
	k2SeqplaySfxFiles,
	k2SeqplayTlkFiles,
	k2SeqplaySeqData,
	k2SeqplayIntroTracks,
	k2SeqplayFinaleTracks,
	k2SeqplayIntroCDA,
	k2SeqplayFinaleCDA,
	k2SeqplayShapeAnimData,

	k2IngamePakFiles,
	k2IngameSfxFiles,
	k2IngameSfxIndex,
	k2IngameTracks,
	k2IngameCDA,
	k2IngameTalkObjIndex,
	k2IngameTimJpStrings,
	k2IngameShapeAnimData,
	k2IngameTlkDemoStrings,

	k3MainMenuStrings,
	k3MusicFiles,
	k3ScoreTable,
	k3SfxFiles,
	k3SfxMap,
	k3ItemAnimData,
	k3ItemMagicTable,
	k3ItemStringMap,

	lolCharacterDefs,
	lolIngameSfxFiles,
	lolIngameSfxIndex,
	lolMusicTrackMap,
	lolIngameGMSfxIndex,
	lolIngameMT32SfxIndex,
	lolSpellProperties,
	lolGameShapeMap,
	lolLevelShpList,
	lolLevelDatList,
	lolCompassDefs,

	lolDscUnk1,
	lolDscShapeIndex,
	lolDscOvlMap,
	lolDscScaleWidthData,
	lolDscScaleHeightData,
	lolDscX,
	lolDscY,
	lolDscTileIndex,
	lolDscUnk2,
	lolDscDoorShapeIndex,
	lolDscDimData1,
	lolDscDimData2,
	lolDscBlockMap,
	lolDscDimMap,
	lolDscDoor1,
	lolDscDoorScale,
	lolDscDoor4,
	lolDscDoorX,
	lolDscDoorY,
	lolDscOvlIndex,
	lolDscBlockIndex,

	kMaxResIDs
};

struct Shape;
struct Room;

class StaticResource {
public:
	static const Common::String staticDataFilename() { return "KYRA.DAT"; }

	StaticResource(KyraEngine_v1 *vm) : _vm(vm), _resList(), _fileLoader(0), _builtIn(0), _filenameTable(0) {}
	~StaticResource() { deinit(); }

	bool loadStaticResourceFile();

	bool init();
	void deinit();

	const char * const*loadStrings(int id, int &strings);
	const uint8 *loadRawData(int id, int &size);
	const Shape *loadShapeTable(int id, int &entries);
	const Room *loadRoomTable(int id, int &entries);
	const uint8 * const*loadPaletteTable(int id, int &entries);
	const HofSeqData *loadHofSequenceData(int id, int &entries);
	const ItemAnimData_v1 *loadShapeAnimData_v1(int id, int &entries);
	const ItemAnimData_v2 *loadShapeAnimData_v2(int id, int &entries);
	const LoLCharacter *loadCharData(int id, int &entries);
	const SpellProperty *loadSpellData(int id, int &entries);
	const CompassDef *loadCompassData(int id, int &entries);
	const uint16 *loadRawDataBe16(int id, int &entries);

	// use '-1' to prefetch/unload all ids
	// prefetchId retruns false if only on of the resources
	// can't be loaded and it breaks then the first res
	// can't be loaded
	bool prefetchId(int id);
	void unloadId(int id);
private:
	bool tryKyraDatLoad();

	KyraEngine_v1 *_vm;

	struct FilenameTable;
	struct ResData;
	struct FileType;

	bool checkResList(int id, int &type, const void *&ptr, int &size);
	const void *checkForBuiltin(int id, int &type, int &size);
	const FilenameTable *searchFile(int id);
	const FileType *getFiletype(int type);
	const void *getData(int id, int requesttype, int &size);

	bool loadLanguageTable(const char *filename, void *&ptr, int &size);
	bool loadStringTable(const char *filename, void *&ptr, int &size);
	bool loadRawData(const char *filename, void *&ptr, int &size);
	bool loadShapeTable(const char *filename, void *&ptr, int &size);
	bool loadRoomTable(const char *filename, void *&ptr, int &size);
	bool loadPaletteTable(const char *filename, void *&ptr, int &size);
	bool loadHofSequenceData(const char *filename, void *&ptr, int &size);
	bool loadShapeAnimData_v1(const char *filename, void *&ptr, int &size);
	bool loadShapeAnimData_v2(const char *filename, void *&ptr, int &size);
	bool loadCharData(const char *filename, void *&ptr, int &size);
	bool loadSpellData(const char *filename, void *&ptr, int &size);
	bool loadCompassData(const char *filename, void *&ptr, int &size);
	bool loadRawDataBe16(const char *filename, void *&ptr, int &size);	

	void freeRawData(void *&ptr, int &size);
	void freeStringTable(void *&ptr, int &size);
	void freeShapeTable(void *&ptr, int &size);
	void freeRoomTable(void *&ptr, int &size);
	void freePaletteTable(void *&ptr, int &size);
	void freeHofSequenceData(void *&ptr, int &size);
	void freeHofShapeAnimDataV1(void *&ptr, int &size);
	void freeHofShapeAnimDataV2(void *&ptr, int &size);
	void freeCharData(void *&ptr, int &size);
	void freeSpellData(void *&ptr, int &size);
	void freeCompassData(void *&ptr, int &size);
	void freeRawDataBe16(void *&ptr, int &size);

	const char *getFilename(const char *name);
	Common::SeekableReadStream *getFile(const char *name);

	enum kResTypes {
		kLanguageList,
		kStringList,
		kRoomList,
		kShapeList,
		kRawData,
		kPaletteTable,

		k2SeqData,
		k2ShpAnimDataV1,
		k2ShpAnimDataV2,

		lolCharData,
		lolSpellData,
		lolCompassData,
		lolRawDataBe16
	};

	struct BuiltinRes {
		int id;
		int type;
		int size;
		const void *data;
	};

	struct FilenameTable {
		int id;
		int type;
		const char *filename;
	};

	struct FileType {
		int type;
		typedef bool (StaticResource::*LoadFunc)(const char *filename, void *&ptr, int &size);
		typedef void (StaticResource::*FreeFunc)(void *&ptr, int &size);

		LoadFunc load;
		FreeFunc free;
	};

	struct ResData {
		int id;
		int type;
		int size;
		void *data;
	};

	Common::List<ResData> _resList;

	const FileType *_fileLoader;
	const BuiltinRes *_builtIn;
	const FilenameTable *_filenameTable;
};

} // end of namespace Kyra

#endif