/*
 * This file is part of VoidArchiveTool.
 *
 * Copyright (C) 2025 Yanczi
 *
 * Void Archive Toolis free software: you can redistribute it and/or modify
 * it under the terms of the GNU Lesser 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 Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public License
 * along with this program.  If not, see <https://www.gnu.org/licenses/>.
 */

#pragma once

#include <cstdint>
#include <string>

#define EXTENSION "pak"
#define SIGNATURE "XPAK"

#define SIGNATURE_KEY_FILE "XKEY"

#define VERSION	  0x03

// Wielkość pojedynczego bloku strumienia
#define CHUNK_STREAM_512KB 524288 // 512KB
#define CHUNK_STREAM_16MB  16777216 // 16MB
#define CHUNK_STREAM_256MB 268435456 // 256MB

// Rozmiar pojedynczego bloku
#define CHUNK_BLOCK_SIZE   131072 // 128KB

#define FILE_FLAG_RAW       0x00
#define FILE_FLAG_COMPRESS  0x0F
#define FILE_FLAG_ENCRYPT   0xF0
#define FILE_FLAG_ZIPENC    0xFF

#define FILE_FLAG_FILTERING 0xAB

//Prgoram title
#define PROGRAM_TITLE     "eXtendet PAK"
#define PROGRAM_VERSION   "v0.5"
#define PROGRAM_AUTHOR    "Yanczi"
#define PROGRAM_COMPILING "19 December 2025"
#define PROGRAM_LICENSE   "GNU LGPL v3"

// Pliki
namespace fl {
	inline constexpr std::string_view sigpak = "XPAK";
	inline constexpr std::string_view sigkey = "XKEY";

	inline constexpr std::string_view extpak = "pak";
	inline constexpr std::string_view extkey = "key";
}

// Size
namespace ds
{
	// Chunki streamowania
	inline constexpr int chunk_stream = 268435456; // 256MB

	// Blok chunków
	inline constexpr int block_size   = 131072;    // 128KB

	// Maksymalny rozmiar pliku do spakowania
	inline constexpr int maxFileSize = 8589934592; // 8GB
}

// Flagi
namespace flag
{
	inline constexpr uint8_t raw = 0x00; // Surowy plik
	inline constexpr uint8_t zip = 0x0F; // Kompresja
	inline constexpr uint8_t enc = 0xF0; // Szyfrowanie
	inline constexpr uint8_t ezd = 0xFF; // Kompresja z szyfrowaniem

	// Flaga do aktywacji filtra zdefiniowanego w json
	inline constexpr uint8_t filter = 0xAB;
}

struct CargoHead
{
	std::string signature;
	uint8_t version;
	uint64_t table;
	uint32_t files;
};

struct FilesTable
{
	uint8_t nameLen;
	std::string nameFile;
	uint64_t offset;
	uint64_t size;
	uint64_t crc;
	uint8_t flag;
};