/* 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.
 *
 */

#include "common/scummsys.h"

#include "zvision/scripting/controls/fist_control.h"

#include "zvision/zvision.h"
#include "zvision/scripting/script_manager.h"
#include "zvision/graphics/render_manager.h"
#include "zvision/cursors/cursor_manager.h"
#include "zvision/animation/meta_animation.h"
#include "zvision/utility/utility.h"

#include "common/stream.h"
#include "common/file.h"
#include "common/system.h"

#include "graphics/surface.h"


namespace ZVision {

FistControl::FistControl(ZVision *engine, uint32 key, Common::SeekableReadStream &stream)
	: Control(engine, key, CONTROL_FIST) {
	_cursor = CursorIndex_Idle;
	_animation = NULL;
	_soundKey = 0;
	_fiststatus = 0;
	_order = 0;
	_fistnum = 0;

	_frameCur = -1;
	_frameEnd = -1;
	_frameTime = 0;
	_lastRenderedFrame = -1;
	_animationId = 0;

	clearFistArray(_fistsUp);
	clearFistArray(_fistsDwn);

	_numEntries = 0;
	_entries.clear();

	_anmRect = Common::Rect();

	// Loop until we find the closing brace
	Common::String line = stream.readLine();
	trimCommentsAndWhiteSpace(&line);
	Common::String param;
	Common::String values;
	getParams(line, param, values);

	while (!stream.eos() && !line.contains('}')) {
		if (param.matchString("sound_key", true)) {
			_soundKey = atoi(values.c_str());
		} else if (param.matchString("cursor", true)) {
			_cursor = _engine->getCursorManager()->getCursorId(values);
		} else if (param.matchString("descfile", true)) {
			readDescFile(values);
		} else if (param.matchString("animation_id", true)) {
			_animationId = atoi(values.c_str());
		} else if (param.matchString("venus_id", true)) {
			_venus_id = atoi(values.c_str());
		}

		line = stream.readLine();
		trimCommentsAndWhiteSpace(&line);
		getParams(line, param, values);
	}
}

FistControl::~FistControl() {
	if (_animation)
		delete _animation;

	clearFistArray(_fistsUp);
	clearFistArray(_fistsDwn);
	_entries.clear();
}

void FistControl::renderFrame(uint frameNumber) {
	if ((int32)frameNumber == _lastRenderedFrame)
		return;

	_lastRenderedFrame = frameNumber;

	const Graphics::Surface *frameData;

	if (_animation) {
		frameData = _animation->getFrameData(frameNumber);
		if (frameData)
			_engine->getRenderManager()->blitSurfaceToBkgScaled(*frameData, _anmRect);
	}
}

bool FistControl::process(uint32 deltaTimeInMillis) {
	if (_engine->getScriptManager()->getStateFlag(_key) & Puzzle::DISABLED)
		return false;

	if (_frameCur >= 0 && _frameEnd >= 0)
		if (_frameCur <= _frameEnd) {
			_frameTime -= deltaTimeInMillis;

		if (_frameTime <= 0) {
			_frameTime = _animation->frameTime();

                renderFrame(_frameCur);

                _frameCur++;

                if (_frameCur > _frameEnd)
                    _engine->getScriptManager()->setStateValue(_animationId, 2);
		}
        }

	return false;
}

bool FistControl::onMouseMove(const Common::Point &screenSpacePos, const Common::Point &backgroundImageSpacePos) {
	if (_engine->getScriptManager()->getStateFlag(_key) & Puzzle::DISABLED)
		return false;

	if (mouseIn(screenSpacePos, backgroundImageSpacePos) >= 0) {
		_engine->getCursorManager()->changeCursor(_cursor);
	        return true;
	}

	return false;
}

bool FistControl::onMouseUp(const Common::Point &screenSpacePos, const Common::Point &backgroundImageSpacePos) {
	if (_engine->getScriptManager()->getStateFlag(_key) & Puzzle::DISABLED)
		return false;

	int n_fist = mouseIn(screenSpacePos, backgroundImageSpacePos);

	if (n_fist >= 0) {
		//ctrl_setvenus(ct);

		uint32 oldStatus = _fiststatus;
		_fiststatus ^= (1 << n_fist);

		for(int i = 0; i < _numEntries; i++)
			if (_entries[i]._bitsStrt == oldStatus && _entries[i]._bitsEnd == _fiststatus) {
				_frameCur = _entries[i]._anmStrt;
				_frameEnd = _entries[i]._anmEnd;
				_frameTime = 0;

				_engine->getScriptManager()->setStateValue(_animationId, 1);
				_engine->getScriptManager()->setStateValue(_soundKey, _entries[i]._sound);
				break;
			}

		_engine->getScriptManager()->setStateValue(_key, _fiststatus);

		//_engine->getScriptManager()->FlushMouseBtn(SDL_BUTTON_LEFT);
	}

	return false;
}

void FistControl::readDescFile(const Common::String &fileName) {
	Common::File file;
	if (!_engine->getSearchManager()->openFile(file, fileName)) {
		warning("Desc file %s could could be opened", fileName.c_str());
		return;
	}

	Common::String line;

	while (!file.eos()) {
		line = file.readLine();

		for (int i = line.size() - 1; i >= 0; i--)
			if (line[i] == '~')
				line.deleteChar(i);

		if (line.matchString("*animation_id*", true)) {
			// Not used
		} else if (line.matchString("*animation*", true)) {
			char filename[64];
			sscanf(line.c_str(), "animation:%s", filename);
			_animation = new MetaAnimation(Common::String(filename), _engine);
		} else if (line.matchString("*anim_rect*", true)) {
			int left, top, right, bottom;
			sscanf(line.c_str(), "anim_rect:%d %d %d %d", &left, &top, &right, &bottom);
			_anmRect = Common::Rect(left, top, right, bottom);
		} else if (line.matchString("*num_fingers*", true)) {
			sscanf(line.c_str(), "num_fingers:%d", &_fistnum);
			_fistsUp.resize(_fistnum);
			_fistsDwn.resize(_fistnum);
		} else if (line.matchString("*entries*", true)) {
			sscanf(line.c_str(), "entries:%d", &_numEntries);
			_entries.resize(_numEntries);
		} else if (line.matchString("*eval_order_ascending*", true)) {
			sscanf(line.c_str(), "eval_order_ascending:%d", &_order);
		} else if (line.matchString("*up_hs_num_*", true)) {
			int fist, num;
			sscanf(line.c_str(), "up_hs_num_%d:%d", &fist, &num);
			_fistsUp[fist].resize(num);
		} else if (line.matchString("*up_hs_*", true)) {
			int16 fist, box, x1, y1, x2, y2;
			sscanf(line.c_str(), "up_hs_%hd_%hd:%hd %hd %hd %hd", &fist, &box, &x1, &y1, &x2, &y2);
			(_fistsUp[fist])[box] = Common::Rect(x1, y1, x2, y2);
		} else if (line.matchString("*down_hs_num_*", true)) {
			int fist, num;
			sscanf(line.c_str(), "down_hs_num_%d:%d", &fist, &num);
			_fistsDwn[fist].resize(num);
		} else if (line.matchString("*down_hs_*", true)) {
			int16 fist, box, x1, y1, x2, y2;
			sscanf(line.c_str(), "down_hs_%hd_%hd:%hd %hd %hd %hd", &fist, &box, &x1, &y1, &x2, &y2);
			(_fistsDwn[fist])[box] = Common::Rect(x1, y1, x2, y2);
		} else {
			int  entry, start, end, sound;
			char bits_start[33];
			char bits_end[33];
			if (sscanf(line.c_str(), "%d:%s %s %d %d (%d)", &entry, bits_start, bits_end, &start, &end, &sound) == 6) {
				_entries[entry]._bitsStrt = readBits(bits_start);
				_entries[entry]._bitsEnd = readBits(bits_end);
				_entries[entry]._anmStrt = start;
				_entries[entry]._anmEnd = end;
				_entries[entry]._sound = sound;
			}
		}
	}
	file.close();
}

void FistControl::clearFistArray(Common::Array< Common::Array<Common::Rect> > &arr) {
	for (uint i = 0; i < arr.size(); i++)
		arr[i].clear();

	arr.clear();
}

uint32 FistControl::readBits(const char *str) {
	uint32 bfield = 0;
	int len = strlen(str);
	for (int i = 0; i < len; i++)
		if (str[i] != '0')
			bfield |= (1 << i);
	return bfield;
}

int FistControl::mouseIn(const Common::Point &screenSpacePos, const Common::Point &backgroundImageSpacePos) {
	if (_order) {
		for(int i = 0; i < _fistnum; i++) {
			if (((_fiststatus >> i) & 1) == 1) {
				for(uint j = 0; j < _fistsDwn[i].size(); j++)
					if ((_fistsDwn[i])[j].contains(backgroundImageSpacePos))
						return i;
			} else {
				for(uint j = 0; j < _fistsUp[i].size(); j++)
					if ((_fistsUp[i])[j].contains(backgroundImageSpacePos))
						return i;
			}
		}
	} else {
		for(int i = _fistnum - 1; i >= 0; i--) {
			if (((_fiststatus >> i) & 1) == 1) {
				for(uint j = 0; j < _fistsDwn[i].size(); j++)
					if ((_fistsDwn[i])[j].contains(backgroundImageSpacePos))
						return i;
			} else {
				for(uint j = 0; j < _fistsUp[i].size(); j++)
					if ((_fistsUp[i])[j].contains(backgroundImageSpacePos))
						return i;
			}
		}
	}
	return -1;
}

} // End of namespace ZVision