/* 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 3 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, see <http://www.gnu.org/licenses/>.
 *
 */

#ifndef DRAGONS_TALK_H
#define DRAGONS_TALK_H

#include "common/str.h"
#include "dragons/scriptopcodes.h"

namespace Dragons {

class BigfileArchive;
class Actor;
class DragonsEngine;

struct TalkDialogEntry {
	char dialogText[600];
	uint32 textIndex;
	uint32 textIndex1;
	byte *scriptCodeStartPtr;
	byte *scriptCodeEndPtr;
	uint16 flags;
	uint8 xPosMaybe;
	uint8 yPosMaybe;
	int16 field_26c;
	uint16 iniId;
	bool hasText;
};


class Talk {
public:
	uint32 _dat_8008e7e8_dialogBox_x1;
	uint32 _dat_8008e844_dialogBox_y1;
	uint32 _dat_8008e848_dialogBox_x2;
	uint32 _dat_8008e874_dialogBox_y2;
private:
	DragonsEngine *_vm;
	BigfileArchive *_bigfileArchive;
	Common::Array<TalkDialogEntry*> _dialogEntries;
	uint32 _defaultResponseTbl[45];

	uint8 _dat_800726ec_tfont_field0;
	uint8 _dat_800726f0_tfont_field2;

	uint8 _dat_800633f8_talkDialogFlag;

public:
	Talk(DragonsEngine *vm, BigfileArchive *bigfileArchive);
	void init();
	bool loadText(uint32 textIndex, uint16 *textBuffer, uint16 bufferLength);
	void printWideText(byte *text);

	void talkFromIni(uint32 iniId, uint32 textIndex);
	void flickerRandomDefaultResponse();

	void loadAndDisplayDialogAroundPoint(uint32 textId, uint16 x, uint16 y, uint16 param_4, int16 param_5);
	uint32 displayDialogAroundINI(uint32 iniId, uint16 *dialogText, uint32 textIndex);
	void displayDialogAroundPoint(uint16 *dialogText, uint16 x, uint16 y, uint16 param_4, int16 param_5, uint32 textId);
	void displayDialogAroundActor(Actor *actor, uint16 param_2, uint16 *dialogText, uint32 textIndex);

	void FUN_8003239c(uint16 *dialog, int16 x, int16 y, int32 param_4, uint16 param_5, Actor *actor, uint16 startSequenceId, uint16 endSequenceId, uint32 textId);

	uint8 conversation_related_maybe(uint16 *dialogText, uint16 x, uint16 y, uint16 param_4, int16 param_5, uint32 textId, int16 param_7);

	void addTalkDialogEntry(TalkDialogEntry *talkDialogEntry);
	void clearDialogEntries();

	bool talkToActor(ScriptOpCall &scriptOpCall);

	uint somethingTextAndSpeechAndAnimRelated(Actor *actor, int16 sequenceId1, int16 sequenceId2, uint32 textIndex, uint16 param_5);
	void FUN_8001a7c4_clearDialogBoxMaybe(); //clear box maybe?

	void playDialogAudioDontWait(uint32 textIndex);

private:
	void copyTextToBuffer(uint16 *destBuffer, byte *src, uint32 destBufferLength);
	uint32 wideStrLen(uint16 *text);
	TalkDialogEntry *displayTalkDialogMenu(Common::Array<TalkDialogEntry*> dialogEntries);
	void exitTalkMenu(bool isFlag8Set, bool isFlag100Set, Common::Array<TalkDialogEntry*> dialogEntries);
	uint32 getDefaultResponseTextIndex();
	void initDefaultResponseTable();
	uint32 strlenUTF16(uint16 *text);
	uint16 *findCharInU16Str(uint16 *text, uint16 chr);
	void drawDialogBox(uint32 x1, uint32 y1, uint32 x2, uint32 y2, uint16 unk);
	uint16 *UTF16ToUTF16Z(uint16 *dest, uint16 *src);
	uint16 findLastPositionOf5cChar(uint16 *text);
	uint32 truncateDialogText(uint16 *srcText, uint16 *destText, uint32 srcLength, uint16 destLength);

	uint32 extractTextIndex(Common::File *fd, uint16 offset);
};

} // End of namespace Dragons

#endif //DRAGONS_TALK_H