/* 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/>.
 *
 */

#include "bagel/hodjnpodj/hnplibs/stdafx.h"
#include "bagel/hodjnpodj/hnplibs/lzss.h"
#include "bagel/hodjnpodj/crypt/rec.h"

namespace Bagel {
namespace HodjNPodj {
namespace Crypt {

bool CCryptRecord::GetRecord(int nID) {
	Common::SeekableReadStream *cryptFile;
	char chBuf;
	int i;

	if ((cryptFile = makeLzssStream(CRYPT_TXT_FILE)) == nullptr)
		return false;

	cryptFile->seek(nID * RECORD_LEN + 1);

	for (i = 0; ; i++) {                                 // Grab cryptogram
		if (i >= MAX_GRAM_LEN) {
			delete cryptFile;
			return false;
		}

		chBuf = (char)cryptFile->readByte();
		if (chBuf == '\\') {
			chBuf = (char)cryptFile->readByte();
		} else if (chBuf == '\"') {
			m_lpszGram[i] = '\0';
			break;
		}

		m_lpszGram[i] = toupper(chBuf);
	}

	// Advance past dilimiting comma and initial quote mark
	cryptFile->skip(2);

	for (i = 0; ; i++) {
		// Grab source
		if (i >= MAX_SOURCE_LEN)
			return false;

		chBuf = (char)cryptFile->readByte();
		if (chBuf == '\\') {
			chBuf = (char)cryptFile->readByte();
		} else if (chBuf == '\"') {
			m_lpszSource[i] = '\0';
			break;
		}

		m_lpszSource[i] = toupper(chBuf);
	}

	delete cryptFile;
	return true;
}

} // namespace Crypt
} // namespace HodjNPodj
} // namespace Bagel