/* 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.
 *
 * $URL$
 * $Id$
 *
 */

#include "common/endian.h"

#include "gui/message.h"

#include "gob/gob.h"
#include "gob/inter.h"
#include "gob/helper.h"
#include "gob/global.h"
#include "gob/util.h"
#include "gob/dataio.h"
#include "gob/draw.h"
#include "gob/game.h"
#include "gob/expression.h"
#include "gob/script.h"
#include "gob/hotspots.h"
#include "gob/palanim.h"
#include "gob/scenery.h"
#include "gob/video.h"
#include "gob/videoplayer.h"
#include "gob/save/saveload.h"
#include "gob/sound/sound.h"

namespace Gob {

#define OPCODEVER Inter_Playtoons
#define OPCODEDRAW(i, x)  _opcodesDraw[i]._OPCODEDRAW(OPCODEVER, x)
#define OPCODEFUNC(i, x)  _opcodesFunc[i]._OPCODEFUNC(OPCODEVER, x)
#define OPCODEGOB(i, x)   _opcodesGob[i]._OPCODEGOB(OPCODEVER, x)

Inter_Playtoons::Inter_Playtoons(GobEngine *vm) : Inter_v6(vm) {
}

void Inter_Playtoons::setupOpcodesDraw() {
	Inter_v6::setupOpcodesDraw();

// In the code, the Draw codes 0x00 to 0x06 and 0x13 are replaced by an engrish
// error message. As it's useless, they are simply cleared.
	CLEAROPCODEDRAW(0x00);
	CLEAROPCODEDRAW(0x01);
	CLEAROPCODEDRAW(0x02);
	CLEAROPCODEDRAW(0x03);
	CLEAROPCODEDRAW(0x04);
	CLEAROPCODEDRAW(0x05);
	CLEAROPCODEDRAW(0x06);
	CLEAROPCODEDRAW(0x13);

	CLEAROPCODEDRAW(0x21);
	CLEAROPCODEDRAW(0x22);
	CLEAROPCODEDRAW(0x24);

	OPCODEDRAW(0x19, oPlaytoons_getObjAnimSize);
	OPCODEDRAW(0x20, oPlaytoons_CD_20_23);
	OPCODEDRAW(0x23, oPlaytoons_CD_20_23);
	OPCODEDRAW(0x25, oPlaytoons_CD_25);
	OPCODEDRAW(0x60, oPlaytoons_copyFile);
	OPCODEDRAW(0x85, oPlaytoons_openItk);
}

void Inter_Playtoons::setupOpcodesFunc() {
	Inter_v6::setupOpcodesFunc();

	CLEAROPCODEFUNC(0x3D);
	OPCODEFUNC(0x0B, oPlaytoons_printText);
	OPCODEFUNC(0x1B, oPlaytoons_F_1B);
	OPCODEFUNC(0x24, oPlaytoons_putPixel);
	OPCODEFUNC(0x27, oPlaytoons_freeSprite);
	OPCODEFUNC(0x3F, oPlaytoons_checkData);
	OPCODEFUNC(0x4D, oPlaytoons_readData);
}

void Inter_Playtoons::setupOpcodesGob() {
}

bool Inter_Playtoons::oPlaytoons_printText(OpFuncParams &params) {
	char buf[60];
	int i;
	int16 oldTransparency;

	_vm->_draw->_destSpriteX = _vm->_game->_script->readValExpr();
	_vm->_draw->_destSpriteY = _vm->_game->_script->readValExpr();

	_vm->_draw->_backColor = _vm->_game->_script->readValExpr();
	_vm->_draw->_frontColor = _vm->_game->_script->readValExpr();
	_vm->_draw->_fontIndex = _vm->_game->_script->readValExpr();
	_vm->_draw->_destSurface = 21;
	_vm->_draw->_textToPrint = buf;
	_vm->_draw->_transparency = 0;

	if (_vm->_draw->_backColor == 16) {
		_vm->_draw->_backColor = 0;
		_vm->_draw->_transparency = 1;
	}

// colMod is read from conf file (_off_=xxx).
// in Playtoons, it's not present in the conf file, thus always equal to the default value (0).
// Maybe used in ADIs...
//	if (!_vm->_draw->_transparency)
//		_vm->_draw->_backColor += colMod;
//	_vm->_draw->_frontColor += colMod;

	oldTransparency = _vm->_draw->_transparency;
	do {
		for (i = 0; (_vm->_game->_script->peekChar() != '.') &&
				(_vm->_game->_script->peekByte() != 200); i++) {
			buf[i] = _vm->_game->_script->readChar();
		}

		if (_vm->_game->_script->peekByte() != 200) {
			_vm->_game->_script->skip(1);
			switch (_vm->_game->_script->peekByte()) {
			case TYPE_VAR_INT8:
			case TYPE_ARRAY_INT8:
				sprintf(buf + i, "%d",
						(int8) READ_VARO_UINT8(_vm->_game->_script->readVarIndex()));
				break;

			case TYPE_VAR_INT16:
			case TYPE_VAR_INT32_AS_INT16:
			case TYPE_ARRAY_INT16:
				sprintf(buf + i, "%d",
						(int16) READ_VARO_UINT16(_vm->_game->_script->readVarIndex()));
				break;

			case TYPE_VAR_INT32:
			case TYPE_ARRAY_INT32:
				sprintf(buf + i, "%d",
						VAR_OFFSET(_vm->_game->_script->readVarIndex()));
				break;

			case TYPE_VAR_STR:
			case TYPE_ARRAY_STR:
				sprintf(buf + i, "%s",
						GET_VARO_STR(_vm->_game->_script->readVarIndex()));
				break;
			}
			_vm->_game->_script->skip(1);
		} else
			buf[i] = 0;

		if (_vm->_game->_script->peekByte() == 200) {
			_vm->_draw->_spriteBottom = _vm->_draw->_fonts[_vm->_draw->_fontIndex]->getCharHeight();
			_vm->_draw->_spriteRight = _vm->_draw->stringLength(_vm->_draw->_textToPrint, _vm->_draw->_fontIndex);
			_vm->_draw->adjustCoords(1, &_vm->_draw->_spriteBottom, &_vm->_draw->_spriteRight);
			if (_vm->_draw->_transparency == 0) {
				_vm->_draw->spriteOperation(DRAW_FILLRECT);
				_vm->_draw->_transparency = 1;
			}
			_vm->_draw->spriteOperation(DRAW_PRINTTEXT);
			_vm->_draw->_transparency = oldTransparency;
			i = 0;
		} else
			i = strlen(buf);
	} while (_vm->_game->_script->peekByte() != 200);

	_vm->_game->_script->skip(1);

	return false;
}

bool Inter_Playtoons::oPlaytoons_F_1B(OpFuncParams &params) {
	_vm->_game->_hotspots->oPlaytoons_F_1B();
	return false;
}

bool Inter_Playtoons::oPlaytoons_putPixel(OpFuncParams &params) {
	_vm->_draw->_destSurface = _vm->_game->_script->readInt16();

	_vm->_draw->_destSpriteX = _vm->_game->_script->readValExpr();
	_vm->_draw->_destSpriteY = _vm->_game->_script->readValExpr();

	_vm->_game->_script->readExpr(99, 0);

	//unk_var is always set to 0 in Playtoons
	_vm->_draw->_frontColor = _vm->_game->_script->getResultInt() & 0xFFFF; // + unk_var;

	_vm->_draw->_pattern = _vm->_game->_script->getResultInt()>>16;

	_vm->_draw->spriteOperation(DRAW_PUTPIXEL);

	return false;
}

bool Inter_Playtoons::oPlaytoons_freeSprite(OpFuncParams &params) {
	int16 index;
	if (_vm->_game->_script->peekByte(1) == 0)
		index = _vm->_game->_script->readInt16();
	else
		index = _vm->_game->_script->readValExpr();
	_vm->_draw->freeSprite(index);
	return false;
}

bool Inter_Playtoons::oPlaytoons_checkData(OpFuncParams &params) {
	int16 handle;
	uint16 varOff;
	int32 size;
	char *backSlash;
	SaveLoad::SaveMode mode;

	_vm->_game->_script->evalExpr(0);
	varOff = _vm->_game->_script->readVarIndex();

	size = -1;
	handle = 1;

	char *file = _vm->_game->_script->getResultStr();

	// WORKAROUND: In Playtoons games, some files are read on CD (and only on CD).
	// In this case, "@:\" is replaced by the CD drive letter.
	// As the files are copied on the HDD, those characters are skipped.
	if (strncmp(file, "@:\\", 3) == 0) {
		debugC(2, kDebugFileIO, "oPlaytoons_checkData: \"%s\" instead of \"%s\"", file + 3, file);
		file += 3;
	}

	// WORKAROUND: In the Playtoons stick files found in german Addy 4, some paths are hardcoded
	if ((backSlash = strrchr(file, '\\'))) {
		debugC(2, kDebugFileIO, "oPlaytoons_checkData: \"%s\" instead of \"%s\"", backSlash + 1, file);
		file = backSlash + 1;
	}

	mode = _vm->_saveLoad->getSaveMode(file);
	if (mode == SaveLoad::kSaveModeNone) {
		if (_vm->_dataIO->existData(file))
			size = _vm->_dataIO->getDataSize(file);
		else
			warning("File \"%s\" not found", file);
	} else if (mode == SaveLoad::kSaveModeSave)
		size = _vm->_saveLoad->getSize(file);
	else if (mode == SaveLoad::kSaveModeExists)
		size = 23;

	if (size == -1)
		handle = -1;

	debugC(2, kDebugFileIO, "Requested size of file \"%s\": %d",
			file, size);

	WRITE_VAR_OFFSET(varOff, handle);
	WRITE_VAR(16, (uint32) size);

	return false;
}

bool Inter_Playtoons::oPlaytoons_readData(OpFuncParams &params) {
	int32 retSize;
	int32 size;
	int32 offset;
	uint16 dataVar;
	int16 handle;
	byte *buf;
	SaveLoad::SaveMode mode;

	_vm->_game->_script->evalExpr(0);
	dataVar = _vm->_game->_script->readVarIndex();
	size = _vm->_game->_script->readValExpr();
	_vm->_game->_script->evalExpr(0);
	offset = _vm->_game->_script->getResultInt();
	retSize = 0;

	char *file = _vm->_game->_script->getResultStr();

	// WORKAROUND: In Playtoons games, some files are read on CD (and only on CD).
	// In this case, "@:\" is replaced by the CD drive letter.
	// As the files are copied on the HDD, those characters are skipped.
	if (strncmp(file, "@:\\", 3) == 0) {
		debugC(2, kDebugFileIO, "oPlaytoons_readData: \"%s\" instead of \"%s\"", file + 3, file);
		file += 3;
	}

	debugC(2, kDebugFileIO, "Read from file \"%s\" (%d, %d bytes at %d)",
			file, dataVar, size, offset);

	mode = _vm->_saveLoad->getSaveMode(file);
	if (mode == SaveLoad::kSaveModeSave) {

		WRITE_VAR(1, 1);

		if (!_vm->_saveLoad->load(file, dataVar, size, offset)) {
			GUI::MessageDialog dialog("Failed to load game state from file.");
			dialog.runModal();
		} else
			WRITE_VAR(1, 0);

		return false;

	} else if (mode == SaveLoad::kSaveModeIgnore)
		return false;

	if (size < 0) {
		warning("Attempted to read a raw sprite from file \"%s\"",
				file);
		return false ;
	} else if (size == 0) {
		dataVar = 0;
		size = _vm->_game->_script->getVariablesCount() * 4;
	}

	buf = _variables->getAddressOff8(dataVar);

	if (file[0] == 0) {
		WRITE_VAR(1, size);
		return false;
	}

	WRITE_VAR(1, 1);
	handle = _vm->_dataIO->openData(file);

	if (handle < 0)
		return false;

	DataStream *stream = _vm->_dataIO->openAsStream(handle, true);

	_vm->_draw->animateCursor(4);
	if (offset < 0)
		stream->seek(offset + 1, SEEK_END);
	else
		stream->seek(offset);

	if (((dataVar >> 2) == 59) && (size == 4)) {
		WRITE_VAR(59, stream->readUint32LE());
		// The scripts in some versions divide through 256^3 then,
		// effectively doing a LE->BE conversion
		if ((_vm->getPlatform() != Common::kPlatformPC) && (VAR(59) < 256))
			WRITE_VAR(59, SWAP_BYTES_32(VAR(59)));
	} else
		retSize = stream->read(buf, size);

	if (retSize == size)
		WRITE_VAR(1, 0);

	delete stream;
	return false;
}

void Inter_Playtoons::oPlaytoons_getObjAnimSize() {
	int16 objIndex;
	uint16 readVar[4];
	uint8 i;
	bool break_fl;
	Mult::Mult_AnimData animData;

	_vm->_game->_script->evalExpr(&objIndex);

	for (i = 0; i < 4; i++)
		readVar[i] = _vm->_game->_script->readVarIndex();

	if (objIndex == -1) {
		warning("oPlaytoons_getObjAnimSize case -1 not implemented");
		return;
	}
	if (objIndex == -2) {
		break_fl = false;
		warning("oPlaytoons_getObjAnimSize case -2 not implemented");
		return;
	}

	if ((objIndex < 0) || (objIndex >= _vm->_mult->_objCount)) {
		warning("oPlaytoons_getObjAnimSize(): objIndex = %d (%d)", objIndex, _vm->_mult->_objCount);
		_vm->_scenery->_toRedrawLeft   = 0;
		_vm->_scenery->_toRedrawTop    = 0;
		_vm->_scenery->_toRedrawRight  = 0;
		_vm->_scenery->_toRedrawBottom = 0;
	} else {
		animData = *(_vm->_mult->_objects[objIndex].pAnimData);
		if (animData.isStatic == 0)
			_vm->_scenery->updateAnim(animData.layer, animData.frame,
					animData.animation, 0, *(_vm->_mult->_objects[objIndex].pPosX),
					*(_vm->_mult->_objects[objIndex].pPosY), 0);

		_vm->_scenery->_toRedrawLeft = MAX<int16>(_vm->_scenery->_toRedrawLeft, 0);
		_vm->_scenery->_toRedrawTop  = MAX<int16>(_vm->_scenery->_toRedrawTop , 0);
	}

	WRITE_VAR_OFFSET(readVar[0], _vm->_scenery->_toRedrawLeft);
	WRITE_VAR_OFFSET(readVar[1], _vm->_scenery->_toRedrawTop);
	WRITE_VAR_OFFSET(readVar[2], _vm->_scenery->_toRedrawRight);
	WRITE_VAR_OFFSET(readVar[3], _vm->_scenery->_toRedrawBottom);
}

void Inter_Playtoons::oPlaytoons_CD_20_23() {
	_vm->_game->_script->evalExpr(0);
}

void Inter_Playtoons::oPlaytoons_CD_25() {
	_vm->_game->_script->readVarIndex();
	_vm->_game->_script->readVarIndex();
}

void Inter_Playtoons::oPlaytoons_copyFile() {
	char fileName1[128];
	char fileName2[128];

	_vm->_game->_script->evalExpr(0);
	strncpy0(fileName1, _vm->_game->_script->getResultStr(), 127);
	_vm->_game->_script->evalExpr(0);
	strncpy0(fileName2, _vm->_game->_script->getResultStr(), 127);

	warning("Playtoons Stub: copy file from \"%s\" to \"%s\"", fileName1, fileName2);
}

void Inter_Playtoons::oPlaytoons_openItk() {
	char fileName[128];
	char *backSlash;

	_vm->_game->_script->evalExpr(0);
	strncpy0(fileName, _vm->_game->_script->getResultStr(), 124);

	if (!strchr(fileName, '.'))
		strcat(fileName, ".ITK");

	// Workaround for Bambou : In the script, the path is hardcoded (!!)
	if ((backSlash = strrchr(fileName, '\\'))) {
		debugC(2, kDebugFileIO, "Opening ITK file \"%s\" instead of \"%s\"", backSlash + 1, fileName);
		_vm->_dataIO->openDataFile(backSlash + 1, true);
	} else
		_vm->_dataIO->openDataFile(fileName, true);
	// All the other checks are meant to verify (if not found at the first try)
	// if the file is present on the CD or not. As everything is supposed to
	// be copied, those checks are skipped
}

} // End of namespace Gob