/* 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 "titanic/files_manager.h"
#include "titanic/game_manager.h"
#include "titanic/screen_manager.h"
#include "titanic/titanic.h"
#include "titanic/video_surface.h"
#include "titanic/core/game_object.h"
#include "titanic/core/resource_key.h"

namespace Titanic {

void *CGameObject::_v1 = nullptr;

CGameObject::CGameObject(): CNamedItem() {
	_bounds = Rect(0, 0, 15, 15);
	_field34 = 0;
	_field38 = 0;
	_field3C = 0;
	_field40 = 0;
	_field44 = 0xF0;
	_field48 = 0xF0;
	_field4C = 0xFF;
	_field50 = 0;
	_field54 = 0;
	_field58 = 0;
	_field5C = 1;
	_field60 = 0;
	_cursorId = CURSOR_1;
	_field78 = 0;
	_frameNumber = -1;
	_field90 = 0;
	_field94 = 0;
	_field98 = 0;
	_field9C = 0;
	_fieldA0 = 0;
	_fieldA4 = 0;
	_surface = nullptr;
	_fieldB8 = 0;
}

void CGameObject::save(SimpleFile *file, int indent) const {
	file->writeNumberLine(7, indent);
	error("TODO: CGameObject::save");

	CNamedItem::save(file, indent);
}

void CGameObject::load(SimpleFile *file) {
	int val = file->readNumber();
	CResourceKey resourceKey;

	switch (val) {
	case 7:
		_clipList2.load(file);
		_frameNumber = file->readNumber();
		// Deliberate fall-through

	case 6:
		_cursorId = (CursorId)file->readNumber();
		// Deliberate fall-through

	case 5:
		_clipList1.load(file);
		// Deliberate fall-through

	case 4:
		_field60 = file->readNumber();
		// Deliberate fall-through

	case 3:
		_field40 = file->readNumber();
		// Deliberate fall-through

	case 2:
		_resource = file->readString();
		// Deliberate fall-through

	case 1:
		_bounds = file->readRect();
		_field34 = file->readFloat();
		_field38 = file->readFloat();
		_field3C = file->readFloat();
		_field44 = file->readNumber();
		_field48 = file->readNumber();
		_field4C = file->readNumber();
		_fieldB8 = file->readNumber();
		_field5C = file->readNumber();
		_field50 = file->readNumber();
		_field54 = file->readNumber();
		_field58 = file->readNumber();

		resourceKey.load(file);		
		_surface = nullptr;
		val = file->readNumber();
		if (val) {
			_resource = resourceKey.getString();
		}
		break;

	default:
		break;
	}

	CNamedItem::load(file);
}

void CGameObject::fn2() {
	error("TODO");
}

bool CGameObject::checkPoint(const Point &pt, int v0, int v1) {
	warning("TODO: CGameObject::checkPoint");
	return false;
}

void CGameObject::draw(CScreenManager *screenManager) {
	if (!_field5C)
		return;
	if (_v1) {
		error("TODO: Block in CGameObject::draw");
	}

	if (_field40) {
		if (_field90) {
			if (_bounds.intersects(getGameManager()->_bounds))
				warning("TODO: _field90(screenManager);");
		}
	} else {
		if (!_surface) {
			if (!_resource.empty()) {
				loadResource(_resource);
				_resource = "";
			}
		}

		if (_surface) {
			_bounds.right = _surface->getWidth();
			_bounds.bottom = _surface->getHeight();

			if (!_bounds.right || !_bounds.bottom)
				return;

			if (_frameNumber >= 0) {
				loadFrame(_frameNumber);
				_frameNumber = -1;
			}

			if (!_clipList2.empty())
				processClipList2();

			if (_bounds.intersects(getGameManager()->_bounds)) {
				if (_surface) {
					Point destPos(_bounds.left, _bounds.top);
					screenManager->blitFrom(SURFACE_BACKBUFFER, _surface, &destPos);
				}

				if (_field90)
					warning("TODO: sub_415f80(screenManager);");
			}
		}
	}
}

void CGameObject::loadResource(const CString &name) {
	switch (name.imageTypeSuffix()) {
	case FILETYPE_IMAGE:
		loadImage(name);
		break;
	case FILETYPE_MOVIE:
		loadMovie(name);
		break;
	}
}

void CGameObject::loadMovie(const CString &name, bool pendingFlag) {
	warning("TODO: CGameObject::loadMovie");
}

void CGameObject::loadImage(const CString &name, bool pendingFlag) {
	// Get a refernce to the game and screen managers
	CGameManager *gameManager = getGameManager();
	CScreenManager *screenManager;

	if (gameManager && (screenManager = CScreenManager::setCurrent()) != nullptr) {
		// Destroy the object's surface if it already had one
		if (_surface) {
			delete _surface;
			_surface = nullptr;
		}

		g_vm->_filesManager.fn5(name);

		if (!name.empty()) {
			_surface = new OSVideoSurface(screenManager, CResourceKey(name), pendingFlag);
		}

		if (_surface && !pendingFlag) {
			_bounds.right = _surface->getWidth();
			_bounds.bottom = _surface->getHeight();
		}

		// Mark the object's area as dirty, so that on the next frame rendering
		// this object will be redrawn
		makeDirty();
	}

	_field78 = 0;
}

void CGameObject::loadFrame(int frameNumber) {
	warning("CGameObject::loadFrame");
}

void CGameObject::processClipList2() {
	warning("CGameObject::processClipList2");
}

void CGameObject::makeDirty(const Rect &r) {
	CGameManager *gameManager = getGameManager();
	if (gameManager)
		gameManager->extendBounds(r);
}

void CGameObject::makeDirty() {
	makeDirty(_bounds);
}

} // End of namespace Titanic