/* Residual - A 3D game interpreter
 *
 * Residual 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 library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.

 * This library 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
 * Lesser General Public License for more details.

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

#include "engines/advancedDetector.h"

#include "engines/grim/grim.h"
#include "engines/grim/colormap.h"
#include "engines/grim/savegame.h"

#include "common/system.h"
#include "common/savefile.h"

namespace Grim {

struct GrimGameDescription {
	ADGameDescription desc;
	GrimGameType gameType;
};

static const PlainGameDescriptor grimGames[] = {
	{"grim", "Grim Fandango"},
	{"monkey4", "Escape From Monkey Island"},
	{0, 0}
};

using Common::GUIO_NONE;

static const GrimGameDescription gameDescriptions[] = {
	{
		// Grim Fandango English version
		{
			"grim",
			"",
			AD_ENTRY1s("grim.tab", "cfb333d6aec260c905151b6b98ef71e8", 362212),
			Common::EN_ANY,
			Common::kPlatformWindows,
			ADGF_NO_FLAGS,
			GUIO_NONE
		},
		GType_GRIM
	},
	{
		// Grim Fandango English version (Adventure-bundle, possibly patched)
		{
			"grim",
			"",
			AD_ENTRY1s("grim.tab", "cfb333d6aec260c905151b6b98ef71e8", 362164),
			Common::EN_ANY,
			Common::kPlatformWindows,
			ADGF_NO_FLAGS,
			GUIO_NONE
		},
		GType_GRIM
	},
	{
		// Grim Fandango German version
		{
			"grim",
			"",
			AD_ENTRY1s("grim.tab", "464138caf47e580cbb237dee10674b16", 398592),
			Common::DE_DEU,
			Common::kPlatformWindows,
			ADGF_NO_FLAGS,
			GUIO_NONE
		},
		GType_GRIM
	},
	{
		// Grim Fandango German version (patched)
		{
			"grim",
			"",
			AD_ENTRY1s("grim.tab", "464138caf47e580cbb237dee10674b16", 398671),
			Common::DE_DEU,
			Common::kPlatformWindows,
			ADGF_NO_FLAGS,
			GUIO_NONE
		},
		GType_GRIM
	},
	{
		// Grim Fandango Spanish version
		{
			"grim",
			"",
			AD_ENTRY1s("grim.tab", "b1460cd029f13718f7f62c2403e047ec", 372709),
			Common::ES_ESP,
			Common::kPlatformWindows,
			ADGF_NO_FLAGS,
			GUIO_NONE
		},
		GType_GRIM
	},
	{
		// Grim Fandango Italian version
		{
			"grim",
			"",
			AD_ENTRY1s("grim.tab", "2d99c796b7a4e5c421cae49dc29dab6c", 369071),
			Common::IT_ITA,
			Common::kPlatformWindows,
			ADGF_NO_FLAGS,
			GUIO_NONE
		},
		GType_GRIM
	},
	{
		// Grim Fandango patched Italian version
		{
			"grim",
			"",
			AD_ENTRY1s("grim.tab", "2d99c796b7a4e5c421cae49dc29dab6c", 369242),
			Common::IT_ITA,
			Common::kPlatformWindows,
			ADGF_NO_FLAGS,
			GUIO_NONE
		},
		GType_GRIM
	},
	{
		// Grim Fandango French version
		{
			"grim",
			"",
			AD_ENTRY1s("grim.tab", "3bd00ca87214862c012ac99e1758dd83", 386292),
			Common::FR_FRA,
			Common::kPlatformWindows,
			ADGF_NO_FLAGS,
			GUIO_NONE
		},
		GType_GRIM
	},
	{
		// Grim Fandango English demo version
		{
			"grim",
			"Demo",
			AD_ENTRY1s("gfdemo01.lab", "755cdac083f7f751bec7506402278f1a", 29489930),
			Common::EN_ANY,
			Common::kPlatformWindows,
			ADGF_DEMO,
			GUIO_NONE
		},
		GType_GRIM
	},
	{
		// Escape from Monkey Island English
		{
			"monkey4",
			"",
			AD_ENTRY1s("voiceAll.m4b", "c66cc6b656a2b1abae373b61d3115342", 17325629),
			Common::EN_ANY,
			Common::kPlatformWindows,
			ADGF_NO_FLAGS,
			GUIO_NONE
		},
		GType_MONKEY4
	},
	{
		// Escape from Monkey Island German
		{
			"monkey4",
			"",
			AD_ENTRY1s("voiceAll.m4b", "63b4724afc9d94a5aa71b46e6b1b7551", 19999850),
			Common::DE_DEU,
			Common::kPlatformWindows,
			ADGF_NO_FLAGS,
			GUIO_NONE
		},
		GType_MONKEY4
	},
	{
		// Escape from Monkey Island Italian
		{
			"monkey4",
			"",
			AD_ENTRY1s("voiceAll.m4b", "d4b9659a0853e707fdb7c7a68c7604d2", 21206992),
			Common::IT_ITA,
			Common::kPlatformWindows,
			ADGF_NO_FLAGS,
			GUIO_NONE
		},
		GType_MONKEY4
	},
	{
		// Escape from Monkey Island Spanish
		{
			"monkey4",
			"",
			AD_ENTRY1s("voiceAll.m4b", "0b48fba32e47f372712ed06365678c2b", 18486773),
			Common::ES_ESP,
			Common::kPlatformWindows,
			ADGF_NO_FLAGS,
			GUIO_NONE
		},
		GType_MONKEY4
	},
	{
		// Escape from Monkey Island French
		{
			"monkey4",
			"",
			AD_ENTRY1s("voiceAll.m4b", "e75ca3a03515e009dc2e4426010d8ebb", 20044753),
			Common::FR_FRA,
			Common::kPlatformWindows,
			ADGF_NO_FLAGS,
			GUIO_NONE
		},
		GType_MONKEY4
	},
	{
		// Escape from Monkey Island English PS2
		{
			"monkey4",
			"",
			AD_ENTRY1s("voiceAll.m4b", "c03391279486f0158c75398f5117ad73", 15095808),
			Common::EN_ANY,
			Common::kPlatformPS2,
			ADGF_NO_FLAGS,
			GUIO_NONE
		},
		GType_MONKEY4
	},
	{
		// Escape from Monkey Island German PS2
		{
			"monkey4",
			"",
			AD_ENTRY1s("voiceAll.m4b", "6bdd08f3f313765c610fbbe39d18797f", 17262912),
			Common::DE_DEU,
			Common::kPlatformPS2,
			ADGF_NO_FLAGS,
			GUIO_NONE
		},
		GType_MONKEY4
	},
	{
		// Escape from Monkey Island Italian PS2
		{
			"monkey4",
			"",
			AD_ENTRY1s("voiceAll.m4b", "342fc0288a7d0e25a7284a04b98ede83", 18128960),
			Common::IT_ITA,
			Common::kPlatformPS2,
			ADGF_NO_FLAGS,
			GUIO_NONE
		},
		GType_MONKEY4
	},
	{
		// Escape from Monkey Island Spanish PS2
		{
			"monkey4",
			"",
			AD_ENTRY1s("voiceAll.m4b", "782ca7d9357577a4c5eefc37974661cc", 15789184),
			Common::ES_ESP,
			Common::kPlatformPS2,
			ADGF_NO_FLAGS,
			GUIO_NONE
		},
		GType_MONKEY4
	},
	{
		// Escape from Monkey Island French PS2
		{
			"monkey4",
			"",
			AD_ENTRY1s("voiceAll.m4b", "ef0905bc590e1afbe2eef1535bde7a6b", 16768512),
			Common::FR_FRA,
			Common::kPlatformPS2,
			ADGF_NO_FLAGS,
			GUIO_NONE
		},
		GType_MONKEY4
	},
	{
		// Escape from Monkey Island demo
		{
			"monkey4",
			"Demo",
			AD_ENTRY1s("magdemo.lab", "9e7eaa1b9317ff47d5deeda0b2c42ce3", 19826116),
			Common::EN_ANY,
			Common::kPlatformWindows,
			ADGF_DEMO,
			GUIO_NONE
		},
		GType_MONKEY4
	},


	{ AD_TABLE_END_MARKER, GType_GRIM }
};

static const ADObsoleteGameID obsoleteGameIDsTable[] = {
	{"grimdemo", "grim", Common::kPlatformWindows},
	{0, 0, Common::kPlatformUnknown}
};

static const ADParams detectionParams = {
	// Pointer to ADGameDescription or its superset structure
	(const byte *)gameDescriptions,
	// Size of that superset structure
	sizeof(GrimGameDescription),
	// Number of bytes to compute MD5 sum for
	5000,
	// List of all engine targets
	grimGames,
	// Structure for autoupgrading obsolete targets
	obsoleteGameIDsTable,
	// Name of single gameid (optional)
	0,
	// List of files for file-based fallback detection (optional)
	0,
	// Flags
	0,
	// Additional GUI options (for every game}
	Common::GUIO_NOMIDI,
	// Maximum directory depth
	1,
	// List of directory globs
	0
};

class GrimMetaEngine : public AdvancedMetaEngine {
public:
	GrimMetaEngine() : AdvancedMetaEngine(detectionParams) {}

	virtual const char *getName() const {
		return "Grim Engine";
	}

	virtual const char *getOriginalCopyright() const {
		return "LucasArts GrimE Games (C) LucasArts";
	}

	virtual bool createInstance(OSystem *syst, Engine **engine, const ADGameDescription *desc) const;

	virtual bool hasFeature(MetaEngineFeature f) const;
	virtual SaveStateList listSaves(const char *target) const;
};

bool GrimMetaEngine::createInstance(OSystem *syst, Engine **engine, const ADGameDescription *desc) const {
	const GrimGameDescription *gd = (const GrimGameDescription *)desc;

	if (gd)
		*engine = new GrimEngine(syst, gd->desc.flags, gd->gameType, gd->desc.platform, gd->desc.language);

	return gd != 0;
}

bool GrimMetaEngine::hasFeature(MetaEngineFeature f) const {
	return
		(f == kSupportsListSaves) ||
		(f == kSupportsLoadingDuringStartup);
}

SaveStateList GrimMetaEngine::listSaves(const char *target) const {
	Common::SaveFileManager *saveFileMan = g_system->getSavefileManager();
	Common::StringArray filenames;
	Common::String saveDesc;
	Common::String pattern = "grim??.gsv";

	filenames = saveFileMan->listSavefiles(pattern);
	sort(filenames.begin(), filenames.end());	// Sort (hopefully ensuring we are sorted numerically..)

	SaveStateList saveList;
	char str[256];
	int32 strSize;
	for (Common::StringArray::const_iterator file = filenames.begin(); file != filenames.end(); ++file) {
		// Obtain the last 2 digits of the filename, since they correspond to the save slot
		int slotNum = atoi(file->c_str() + 4);

		if (slotNum >= 0 && slotNum <= 99) {
			SaveGame *savedState = new SaveGame((*file).c_str(), false);
			if (savedState) {
				if (savedState->saveVersion() != SaveGame::SAVEGAME_VERSION) {
					delete savedState;
					continue;
				}
				savedState->beginSection('SUBS');
				strSize = savedState->readLESint32();
				savedState->read(str, strSize);
				saveDesc = str;
				saveList.push_back(SaveStateDescriptor(slotNum, saveDesc));
				delete savedState;
			}

		}
	}

	return saveList;
}

} // End of namespace Grim

#if PLUGIN_ENABLED_DYNAMIC(GRIM)
	REGISTER_PLUGIN_DYNAMIC(GRIM, PLUGIN_TYPE_ENGINE, Grim::GrimMetaEngine);
#else
	REGISTER_PLUGIN_STATIC(GRIM, PLUGIN_TYPE_ENGINE, Grim::GrimMetaEngine);
#endif