/*
 * This file is part of the AzerothCore Project. See AUTHORS file for Copyright information
 *
 * This program is free software; you can redistribute it and/or modify it
 * under the terms of the GNU Affero 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 Affero 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/>.
 */

#define _CRT_SECURE_NO_DEPRECATE

#include <cstdio>
#include <cstdlib>
#include <deque>
#include <filesystem>
#include <set>
#include <unordered_map>
#include <cstring>

#ifdef _WIN32
#include "direct.h"
#else
#include <sys/stat.h>
#include <unistd.h>
#endif

#include "dbcfile.h"
#include "mpq_libmpq04.h"
#include "StringFormat.h"

#include "adt.h"
#include "wdt.h"

#include <fcntl.h>

#if defined( __GNUC__ )
#define _open   open
#define _close close
#ifndef O_BINARY
#define O_BINARY 0
#endif
#else
#include <io.h>
#endif

#ifdef O_LARGEFILE
#define OPEN_FLAGS  (O_RDONLY | O_BINARY | O_LARGEFILE)
#else
#define OPEN_FLAGS (O_RDONLY | O_BINARY)
#endif
extern ArchiveSet gOpenArchives;

// cppcheck-suppress ctuOneDefinitionRuleViolation
typedef struct
{
    char name[64];
    uint32 id;
} map_id;

struct LiquidTypeEntry
{
    uint8 SoundBank;
};

std::vector<map_id> map_ids;
std::unordered_map<uint32, LiquidTypeEntry> LiquidTypes;
#define MAX_PATH_LENGTH 128
char output_path[MAX_PATH_LENGTH] = ".";
char input_path[MAX_PATH_LENGTH] = ".";

// **************************************************
// Extractor options
// **************************************************
enum Extract
{
    EXTRACT_MAP    = 1,
    EXTRACT_DBC    = 2,
    EXTRACT_CAMERA = 4
};

// Select data for extract
int   CONF_extract = EXTRACT_MAP | EXTRACT_DBC | EXTRACT_CAMERA;
// This option allow limit minimum height to some value (Allow save some memory)
bool  CONF_allow_height_limit = true;
float CONF_use_minHeight = -500.0f;

// This option allow use float to int conversion
bool  CONF_allow_float_to_int   = true;
float CONF_float_to_int8_limit  = 2.0f;      // Max accuracy = val/256
float CONF_float_to_int16_limit = 2048.0f;   // Max accuracy = val/65536
float CONF_flat_height_delta_limit = 0.005f; // If max - min less this value - surface is flat
float CONF_flat_liquid_delta_limit = 0.001f; // If max - min less this value - liquid surface is flat

// List MPQ for extract from
const char* CONF_mpq_list[] =
{
    "common.MPQ",
    "common-2.MPQ",
    "lichking.MPQ",
    "expansion.MPQ",
    "patch.MPQ",
    "patch-2.MPQ",
    "patch-3.MPQ",
    "patch-4.MPQ",
    "patch-5.MPQ",
};

static const char* const langs[] = {"enGB", "enUS", "deDE", "esES", "frFR", "koKR", "zhCN", "zhTW", "enCN", "enTW", "esMX", "ruRU" };
#define LANG_COUNT 12

void CreateDir( const std::string& Path )
{
    if (chdir(Path.c_str()) == 0)
    {
        int ret = chdir("../");
        if (ret < 0)
        {
            printf("Error while executing chdir");
        }
        return;
    }

    int ret;
#ifdef _WIN32
    ret = _mkdir( Path.c_str());
#else
    ret = mkdir( Path.c_str(), 0777 );
#endif
    if (ret != 0)
    {
        printf("Fatal Error: Could not create directory %s check your permissions", Path.c_str());
        exit(1);
    }
}

bool FileExists( const char* FileName )
{
    int fp = _open(FileName, OPEN_FLAGS);
    if (fp != -1)
    {
        _close(fp);
        return true;
    }

    return false;
}

void Usage(char* prg)
{
    printf(
        "Usage:\n"\
        "%s -[var] [value]\n"\
        "-i set input path\n"\
        "-o set output path\n"\
        "-e extract only MAP(1)/DBC(2)/Camera(4) - standard: all(7)\n"\
        "-f height stored as int (less map size but lost some accuracy) 1 by default\n"\
        "Example: %s -f 0 -i \"c:\\games\\game\"", prg, prg);
    exit(1);
}

void HandleArgs(int argc, char* arg[])
{
    for (int c = 1; c < argc; ++c)
    {
        // i - input path
        // o - output path
        // e - extract only MAP(1)/DBC(2) - standard both(3)
        // f - use float to int conversion
        // h - limit minimum height
        if (arg[c][0] != '-')
        {
            Usage(arg[0]);
        }

        switch (arg[c][1])
        {
            case 'i':
                if (c + 1 < argc)                           // all ok
                {
                    std::strncpy(input_path, arg[(c++) + 1], MAX_PATH_LENGTH - 1);
                    input_path[MAX_PATH_LENGTH - 1] = '\0';
                }
                else
                {
                    Usage(arg[0]);
                }
                break;
            case 'o':
                if (c + 1 < argc)                           // all ok
                {
                    std::strncpy(output_path, arg[(c++) + 1], MAX_PATH_LENGTH - 1);
                    output_path[MAX_PATH_LENGTH - 1] = '\0';
                }
                else
                {
                    Usage(arg[0]);
                }
                break;
            case 'f':
                if (c + 1 < argc)                           // all ok
                {
                    CONF_allow_float_to_int = atoi(arg[(c++) + 1]) != 0;
                }
                else
                {
                    Usage(arg[0]);
                }
                break;
            case 'e':
                if (c + 1 < argc)                           // all ok
                {
                    CONF_extract = atoi(arg[(c++) + 1]);
                    if (!(CONF_extract > 0 && CONF_extract < 8))
                    {
                        Usage(arg[0]);
                    }
                }
                else
                {
                    Usage(arg[0]);
                }
                break;
        }
    }
}

uint32 ReadBuild(int locale)
{
    // include build info file also
    std::string filename  = std::string("component.wow-") + langs[locale] + ".txt";
    //printf("Read %s file... ", filename.c_str());

    MPQFile m(filename.c_str());
    if (m.isEof())
    {
        printf("Fatal error: Not found %s file!\n", filename.c_str());
        exit(1);
    }

    std::string text = std::string(m.getPointer(), m.getSize());
    m.close();

    std::size_t pos = text.find("version=\"");
    std::size_t pos1 = pos + strlen("version=\"");
    std::size_t pos2 = text.find("\"", pos1);
    if (pos == text.npos || pos2 == text.npos || pos1 >= pos2)
    {
        printf("Fatal error: Invalid  %s file format!\n", filename.c_str());
        exit(1);
    }

    std::string build_str = text.substr(pos1, pos2 - pos1);

    int build = atoi(build_str.c_str());
    if (build <= 0)
    {
        printf("Fatal error: Invalid  %s file format!\n", filename.c_str());
        exit(1);
    }

    return build;
}

uint32 ReadMapDBC()
{
    printf("Read Map.dbc file... ");
    DBCFile dbc("DBFilesClient\\Map.dbc");

    if (!dbc.open())
    {
        printf("Fatal error: Invalid Map.dbc file format!\n");
        exit(1);
    }

    std::size_t map_count = dbc.getRecordCount();
    map_ids.resize(map_count);
    for (uint32 x = 0; x < map_count; ++x)
    {
        map_ids[x].id = dbc.getRecord(x).getUInt(0);
        std::strncpy(map_ids[x].name, dbc.getRecord(x).getString(1), sizeof(map_ids[x].name) - 1);
        map_ids[x].name[sizeof(map_ids[x].name) - 1] = '\0';
    }
    printf("Done! (%u maps loaded)\n", (uint32)map_count);
    return map_count;
}

void ReadLiquidTypeTableDBC()
{
    printf("Read LiquidType.dbc file...");
    DBCFile dbc("DBFilesClient\\LiquidType.dbc");
    if (!dbc.open())
    {
        printf("Fatal error: Invalid LiquidType.dbc file format!\n");
        exit(1);
    }

    for (uint32 x = 0; x < dbc.getRecordCount(); ++x)
    {
        LiquidTypeEntry& liquidType = LiquidTypes[dbc.getRecord(x).getUInt(0)];
        liquidType.SoundBank = dbc.getRecord(x).getUInt(3);
    }

    printf("Done! (%lu LiquidTypes loaded)\n", LiquidTypes.size());
}

//
// Adt file convertor function and data
//

// Map file format data
static char const* MAP_MAGIC         = "MAPS";
static uint32 const MAP_VERSION_MAGIC = 9;
static char const* MAP_AREA_MAGIC    = "AREA";
static char const* MAP_HEIGHT_MAGIC  = "MHGT";
static char const* MAP_LIQUID_MAGIC  = "MLIQ";

struct map_fileheader
{
    uint32 mapMagic;
    uint32 versionMagic;
    uint32 buildMagic;
    uint32 areaMapOffset;
    uint32 areaMapSize;
    uint32 heightMapOffset;
    uint32 heightMapSize;
    uint32 liquidMapOffset;
    uint32 liquidMapSize;
    uint32 holesOffset;
    uint32 holesSize;
};

#define MAP_AREA_NO_AREA      0x0001

struct map_areaHeader
{
    uint32 fourcc;
    uint16 flags;
    uint16 gridArea;
};

#define MAP_HEIGHT_NO_HEIGHT            0x0001
#define MAP_HEIGHT_AS_INT16             0x0002
#define MAP_HEIGHT_AS_INT8              0x0004
#define MAP_HEIGHT_HAS_FLIGHT_BOUNDS    0x0008

struct map_heightHeader
{
    uint32 fourcc;
    uint32 flags;
    float  gridHeight;
    float  gridMaxHeight;
};

#define MAP_LIQUID_TYPE_NO_WATER    0x00
#define MAP_LIQUID_TYPE_WATER       0x01
#define MAP_LIQUID_TYPE_OCEAN       0x02
#define MAP_LIQUID_TYPE_MAGMA       0x04
#define MAP_LIQUID_TYPE_SLIME       0x08

#define MAP_LIQUID_TYPE_DARK_WATER  0x10

#define MAP_LIQUID_NO_TYPE    0x0001
#define MAP_LIQUID_NO_HEIGHT  0x0002

struct map_liquidHeader
{
    uint32 fourcc;
    uint8 flags;
    uint8 liquidFlags;
    uint16 liquidType;
    uint8  offsetX;
    uint8  offsetY;
    uint8  width;
    uint8  height;
    float  liquidLevel;
};

float selectUInt8StepStore(float maxDiff)
{
    return 255 / maxDiff;
}

float selectUInt16StepStore(float maxDiff)
{
    return 65535 / maxDiff;
}
// Temporary grid data store
uint16 area_ids[ADT_CELLS_PER_GRID][ADT_CELLS_PER_GRID];

float V8[ADT_GRID_SIZE][ADT_GRID_SIZE];
float V9[ADT_GRID_SIZE + 1][ADT_GRID_SIZE + 1];
uint16 uint16_V8[ADT_GRID_SIZE][ADT_GRID_SIZE];
uint16 uint16_V9[ADT_GRID_SIZE + 1][ADT_GRID_SIZE + 1];
uint8  uint8_V8[ADT_GRID_SIZE][ADT_GRID_SIZE];
uint8  uint8_V9[ADT_GRID_SIZE + 1][ADT_GRID_SIZE + 1];

uint16 liquid_entry[ADT_CELLS_PER_GRID][ADT_CELLS_PER_GRID];
uint8 liquid_flags[ADT_CELLS_PER_GRID][ADT_CELLS_PER_GRID];
bool  liquid_show[ADT_GRID_SIZE][ADT_GRID_SIZE];
float liquid_height[ADT_GRID_SIZE + 1][ADT_GRID_SIZE + 1];
uint16 holes[ADT_CELLS_PER_GRID][ADT_CELLS_PER_GRID];

int16 flight_box_max[3][3];
int16 flight_box_min[3][3];

bool ConvertADT(std::string const& inputPath, std::string const& outputPath, int /*cell_y*/, int /*cell_x*/, uint32 build)
{
    ADT_file adt;

    if (!adt.loadFile(inputPath))
        return false;

    adt_MCIN* cells = adt.a_grid->getMCIN();
    if (!cells)
    {
        printf("Can't find cells in '%s'\n", inputPath.c_str());
        return false;
    }

    memset(liquid_show, 0, sizeof(liquid_show));
    memset(liquid_flags, 0, sizeof(liquid_flags));
    memset(liquid_entry, 0, sizeof(liquid_entry));

    memset(holes, 0, sizeof(holes));

    // Prepare map header
    map_fileheader map;
    map.mapMagic = *reinterpret_cast<uint32 const*>(MAP_MAGIC);
    map.versionMagic = MAP_VERSION_MAGIC;
    map.buildMagic = build;

    // Get area flags data
    for (int i = 0; i < ADT_CELLS_PER_GRID; i++)
        for (int j = 0; j < ADT_CELLS_PER_GRID; j++)
            area_ids[i][j] = cells->getMCNK(i, j)->areaid;

    //============================================
    // Try pack area data
    //============================================
    bool fullAreaData = false;
    uint32 areaId = area_ids[0][0];
    for (auto & area_id : area_ids)
    {
        for (int x = 0; x < ADT_CELLS_PER_GRID; ++x)
        {
            if (area_id[x] != areaId)
            {
                fullAreaData = true;
                break;
            }
        }
    }

    map.areaMapOffset = sizeof(map);
    map.areaMapSize   = sizeof(map_areaHeader);

    map_areaHeader areaHeader;
    areaHeader.fourcc = *reinterpret_cast<uint32 const*>(MAP_AREA_MAGIC);
    areaHeader.flags = 0;
    if (fullAreaData)
    {
        areaHeader.gridArea = 0;
        map.areaMapSize += sizeof(area_ids);
    }
    else
    {
        areaHeader.flags |= MAP_AREA_NO_AREA;
        areaHeader.gridArea = static_cast<uint16>(areaId);
    }

    //
    // Get Height map from grid
    //
    for (int i = 0; i < ADT_CELLS_PER_GRID; i++)
    {
        for (int j = 0; j < ADT_CELLS_PER_GRID; j++)
        {
            adt_MCNK* cell = cells->getMCNK(i, j);
            if (!cell)
                continue;
            // Height values for triangles stored in order:
            // 1     2     3     4     5     6     7     8     9
            //    10    11    12    13    14    15    16    17
            // 18    19    20    21    22    23    24    25    26
            //    27    28    29    30    31    32    33    34
            // . . . . . . . .
            // For better get height values merge it to V9 and V8 map
            // V9 height map:
            // 1     2     3     4     5     6     7     8     9
            // 18    19    20    21    22    23    24    25    26
            // . . . . . . . .
            // V8 height map:
            //    10    11    12    13    14    15    16    17
            //    27    28    29    30    31    32    33    34
            // . . . . . . . .

            // Set map height as grid height
            for (int y = 0; y <= ADT_CELL_SIZE; y++)
            {
                int cy = i * ADT_CELL_SIZE + y;
                for (int x = 0; x <= ADT_CELL_SIZE; x++)
                {
                    int cx = j * ADT_CELL_SIZE + x;
                    V9[cy][cx] = cell->ypos;
                }
            }
            for (int y = 0; y < ADT_CELL_SIZE; y++)
            {
                int cy = i * ADT_CELL_SIZE + y;
                for (int x = 0; x < ADT_CELL_SIZE; x++)
                {
                    int cx = j * ADT_CELL_SIZE + x;
                    V8[cy][cx] = cell->ypos;
                }
            }
            // Get custom height
            adt_MCVT* v = cell->getMCVT();
            if (!v)
                continue;
            // get V9 height map
            for (int y = 0; y <= ADT_CELL_SIZE; y++)
            {
                int cy = i * ADT_CELL_SIZE + y;
                for (int x = 0; x <= ADT_CELL_SIZE; x++)
                {
                    int cx = j * ADT_CELL_SIZE + x;
                    V9[cy][cx] += v->height_map[y * (ADT_CELL_SIZE * 2 + 1) + x];
                }
            }
            // get V8 height map
            for (int y = 0; y < ADT_CELL_SIZE; y++)
            {
                int cy = i * ADT_CELL_SIZE + y;
                for (int x = 0; x < ADT_CELL_SIZE; x++)
                {
                    int cx = j * ADT_CELL_SIZE + x;
                    V8[cy][cx] += v->height_map[y * (ADT_CELL_SIZE * 2 + 1) + ADT_CELL_SIZE + 1 + x];
                }
            }
        }
    }
    //============================================
    // Try pack height data
    //============================================
    float maxHeight = -20000;
    float minHeight =  20000;
    for (auto & y : V8)
    {
        for (int x = 0; x < ADT_GRID_SIZE; x++)
        {
            float h = y[x];
            if (maxHeight < h) maxHeight = h;
            if (minHeight > h) minHeight = h;
        }
    }
    for (int y = 0; y <= ADT_GRID_SIZE; y++)
    {
        for (int x = 0; x <= ADT_GRID_SIZE; x++)
        {
            float h = V9[y][x];
            if (maxHeight < h) maxHeight = h;
            if (minHeight > h) minHeight = h;
        }
    }

    // Check for allow limit minimum height (not store height in deep ochean - allow save some memory)
    if (CONF_allow_height_limit && minHeight < CONF_use_minHeight)
    {
        for (auto & y : V8)
            for (int x = 0; x < ADT_GRID_SIZE; x++)
                if (y[x] < CONF_use_minHeight)
                    y[x] = CONF_use_minHeight;
        for (int y = 0; y <= ADT_GRID_SIZE; y++)
            for (int x = 0; x <= ADT_GRID_SIZE; x++)
                if (V9[y][x] < CONF_use_minHeight)
                    V9[y][x] = CONF_use_minHeight;
        if (minHeight < CONF_use_minHeight)
            minHeight = CONF_use_minHeight;
        if (maxHeight < CONF_use_minHeight)
            maxHeight = CONF_use_minHeight;
    }

    bool hasFlightBox = false;
    if (adt_MFBO* mfbo = adt.a_grid->getMFBO())
    {
        memcpy(flight_box_max, &mfbo->max, sizeof(flight_box_max));
        memcpy(flight_box_min, &mfbo->min, sizeof(flight_box_min));
        hasFlightBox = true;
    }

    map.heightMapOffset = map.areaMapOffset + map.areaMapSize;
    map.heightMapSize = sizeof(map_heightHeader);

    map_heightHeader heightHeader;
    heightHeader.fourcc = *reinterpret_cast<uint32 const*>(MAP_HEIGHT_MAGIC);
    heightHeader.flags = 0;
    heightHeader.gridHeight    = minHeight;
    heightHeader.gridMaxHeight = maxHeight;

    if (maxHeight == minHeight)
        heightHeader.flags |= MAP_HEIGHT_NO_HEIGHT;

    // Not need store if flat surface
    if (CONF_allow_float_to_int && (maxHeight - minHeight) < CONF_flat_height_delta_limit)
        heightHeader.flags |= MAP_HEIGHT_NO_HEIGHT;

    if (hasFlightBox)
    {
        heightHeader.flags |= MAP_HEIGHT_HAS_FLIGHT_BOUNDS;
        map.heightMapSize += sizeof(flight_box_max) + sizeof(flight_box_min);
    }

    // Try store as packed in uint16 or uint8 values
    if (!(heightHeader.flags & MAP_HEIGHT_NO_HEIGHT))
    {
        float step = 0;
        // Try Store as uint values
        if (CONF_allow_float_to_int)
        {
            float diff = maxHeight - minHeight;
            if (diff < CONF_float_to_int8_limit)      // As uint8 (max accuracy = CONF_float_to_int8_limit/256)
            {
                heightHeader.flags |= MAP_HEIGHT_AS_INT8;
                step = selectUInt8StepStore(diff);
            }
            else if (diff < CONF_float_to_int16_limit) // As uint16 (max accuracy = CONF_float_to_int16_limit/65536)
            {
                heightHeader.flags |= MAP_HEIGHT_AS_INT16;
                step = selectUInt16StepStore(diff);
            }
        }

        // Pack it to int values if need
        if (heightHeader.flags & MAP_HEIGHT_AS_INT8)
        {
            for (int y = 0; y < ADT_GRID_SIZE; y++)
                for (int x = 0; x < ADT_GRID_SIZE; x++)
                    uint8_V8[y][x] = uint8((V8[y][x] - minHeight) * step + 0.5f);
            for (int y = 0; y <= ADT_GRID_SIZE; y++)
                for (int x = 0; x <= ADT_GRID_SIZE; x++)
                    uint8_V9[y][x] = uint8((V9[y][x] - minHeight) * step + 0.5f);
            map.heightMapSize += sizeof(uint8_V9) + sizeof(uint8_V8);
        }
        else if (heightHeader.flags & MAP_HEIGHT_AS_INT16)
        {
            for (int y = 0; y < ADT_GRID_SIZE; y++)
                for (int x = 0; x < ADT_GRID_SIZE; x++)
                    uint16_V8[y][x] = uint16((V8[y][x] - minHeight) * step + 0.5f);
            for (int y = 0; y <= ADT_GRID_SIZE; y++)
                for (int x = 0; x <= ADT_GRID_SIZE; x++)
                    uint16_V9[y][x] = uint16((V9[y][x] - minHeight) * step + 0.5f);
            map.heightMapSize += sizeof(uint16_V9) + sizeof(uint16_V8);
        }
        else
            map.heightMapSize += sizeof(V9) + sizeof(V8);
    }

    // Get from MCLQ chunk (old)
    for (int i = 0; i < ADT_CELLS_PER_GRID; i++)
    {
        for (int j = 0; j < ADT_CELLS_PER_GRID; j++)
        {
            adt_MCNK* cell = cells->getMCNK(i, j);
            if (!cell)
                continue;

            adt_MCLQ* liquid = cell->getMCLQ();
            int count = 0;
            if (!liquid || cell->sizeMCLQ <= 8)
                continue;

            for (int y = 0; y < ADT_CELL_SIZE; y++)
            {
                int cy = i * ADT_CELL_SIZE + y;
                for (int x = 0; x < ADT_CELL_SIZE; x++)
                {
                    int cx = j * ADT_CELL_SIZE + x;
                    if (liquid->flags[y][x] != 0x0F)
                    {
                        liquid_show[cy][cx] = true;
                        if (liquid->flags[y][x] & (1 << 7))
                            liquid_flags[i][j] |= MAP_LIQUID_TYPE_DARK_WATER;
                        ++count;
                    }
                }
            }

            uint32 c_flag = cell->flags;
            if (c_flag & (1 << 2))
            {
                liquid_entry[i][j] = 1;
                liquid_flags[i][j] |= MAP_LIQUID_TYPE_WATER;            // water
            }
            if (c_flag & (1 << 3))
            {
                liquid_entry[i][j] = 2;
                liquid_flags[i][j] |= MAP_LIQUID_TYPE_OCEAN;            // ocean
            }
            if (c_flag & (1 << 4))
            {
                liquid_entry[i][j] = 3;
                liquid_flags[i][j] |= MAP_LIQUID_TYPE_MAGMA;            // magma/slime
            }

            if (!count && liquid_flags[i][j])
                fprintf(stderr, "Wrong liquid detect in MCLQ chunk");

            for (int y = 0; y <= ADT_CELL_SIZE; y++)
            {
                int cy = i * ADT_CELL_SIZE + y;
                for (int x = 0; x <= ADT_CELL_SIZE; x++)
                {
                    int cx = j * ADT_CELL_SIZE + x;
                    liquid_height[cy][cx] = liquid->liquid[y][x].height;
                }
            }
        }
    }

    // Get liquid map for grid (in WOTLK used MH2O chunk)
    adt_MH2O* h2o = adt.a_grid->getMH2O();
    if (h2o)
    {
        for (int32 i = 0; i < ADT_CELLS_PER_GRID; i++)
        {
            for (int32 j = 0; j < ADT_CELLS_PER_GRID; j++)
            {
                adt_liquid_instance const* h = h2o->GetLiquidInstance(i,j);
                if (!h)
                    continue;

                adt_liquid_attributes attrs = h2o->GetLiquidAttributes(i, j);

                int32 count = 0;
                uint64 existsMask = h2o->GetLiquidExistsBitmap(h);
                for (int32 y = 0; y < h->GetHeight(); y++)
                {
                    int32 cy = i * ADT_CELL_SIZE + y + h->GetOffsetY();
                    for (int32 x = 0; x < h->GetWidth(); x++)
                    {
                        int32 cx = j * ADT_CELL_SIZE + x + h->GetOffsetX();
                        if (existsMask & 1)
                        {
                            liquid_show[cy][cx] = true;
                            ++count;
                        }
                        existsMask >>= 1;
                    }
                }

                liquid_entry[i][j] = h->LiquidType;
                switch (LiquidTypes.at(h->LiquidType).SoundBank)
                {
                    case LIQUID_TYPE_WATER: liquid_flags[i][j] |= MAP_LIQUID_TYPE_WATER; break;
                    case LIQUID_TYPE_OCEAN: liquid_flags[i][j] |= MAP_LIQUID_TYPE_OCEAN; if (attrs.Deep) liquid_flags[i][j] |= MAP_LIQUID_TYPE_DARK_WATER; break;
                    case LIQUID_TYPE_MAGMA: liquid_flags[i][j] |= MAP_LIQUID_TYPE_MAGMA; break;
                    case LIQUID_TYPE_SLIME: liquid_flags[i][j] |= MAP_LIQUID_TYPE_SLIME; break;
                    default:
                        printf("\nCan't find Liquid type %u for map %s\nchunk %d,%d\n", h->LiquidType, inputPath.c_str(), i, j);
                        break;
                }

                if (!count && liquid_flags[i][j])
                    printf("Wrong liquid detect in MH2O chunk");

                int32 pos = 0;
                for (int32 y = 0; y <= h->GetHeight(); y++)
                {
                    int cy = i * ADT_CELL_SIZE + y + h->GetOffsetY();
                    for (int32 x = 0; x <= h->GetWidth(); x++)
                    {
                        int32 cx = j * ADT_CELL_SIZE + x + h->GetOffsetX();
                        liquid_height[cy][cx] = h2o->GetLiquidHeight(h, pos);

                        pos++;
                    }
                }
            }
        }
    }
    //============================================
    // Pack liquid data
    //============================================
    uint16 firstLiquidType = liquid_entry[0][0];
    uint8 firstLiquidFlag = liquid_flags[0][0];
    bool fullType = false;
    for (int y = 0; y < ADT_CELLS_PER_GRID; y++)
    {
        for (int x = 0; x < ADT_CELLS_PER_GRID; x++)
        {
            if (liquid_entry[y][x] != firstLiquidType || liquid_flags[y][x] != firstLiquidFlag)
            {
                fullType = true;
                y = ADT_CELLS_PER_GRID;
                break;
            }
        }
    }

    map_liquidHeader liquidHeader;

    // no water data (if all grid have 0 liquid type)
    if (firstLiquidFlag == 0 && !fullType)
    {
        // No liquid data
        map.liquidMapOffset = 0;
        map.liquidMapSize   = 0;
    }
    else
    {
        int minX = 255, minY = 255;
        int maxX = 0, maxY = 0;
        maxHeight = -20000;
        minHeight = 20000;
        for (int y = 0; y < ADT_GRID_SIZE; y++)
        {
            for (int x = 0; x < ADT_GRID_SIZE; x++)
            {
                if (liquid_show[y][x])
                {
                    if (minX > x) minX = x;
                    if (maxX < x) maxX = x;
                    if (minY > y) minY = y;
                    if (maxY < y) maxY = y;
                    float h = liquid_height[y][x];
                    if (maxHeight < h) maxHeight = h;
                    if (minHeight > h) minHeight = h;
                }
                else
                {
                    liquid_height[y][x] = CONF_use_minHeight;

                    if (minHeight > CONF_use_minHeight)
                    {
                        minHeight = CONF_use_minHeight;
                    }
                }
            }
        }
        map.liquidMapOffset = map.heightMapOffset + map.heightMapSize;
        map.liquidMapSize = sizeof(map_liquidHeader);
        liquidHeader.fourcc = *(uint32 const*)MAP_LIQUID_MAGIC;
        liquidHeader.flags = 0;
        liquidHeader.liquidType = 0;
        liquidHeader.offsetX = minX;
        liquidHeader.offsetY = minY;
        liquidHeader.width   = maxX - minX + 1 + 1;
        liquidHeader.height  = maxY - minY + 1 + 1;
        liquidHeader.liquidLevel = minHeight;

        if (maxHeight == minHeight)
            liquidHeader.flags |= MAP_LIQUID_NO_HEIGHT;

        // Not need store if flat surface
        if (CONF_allow_float_to_int && (maxHeight - minHeight) < CONF_flat_liquid_delta_limit)
            liquidHeader.flags |= MAP_LIQUID_NO_HEIGHT;

        if (!fullType)
            liquidHeader.flags |= MAP_LIQUID_NO_TYPE;

        if (liquidHeader.flags & MAP_LIQUID_NO_TYPE)
        {
            liquidHeader.liquidFlags = firstLiquidFlag;
            liquidHeader.liquidType = firstLiquidType;
        }
        else
            map.liquidMapSize += sizeof(liquid_entry) + sizeof(liquid_flags);

        if (!(liquidHeader.flags & MAP_LIQUID_NO_HEIGHT))
            map.liquidMapSize += sizeof(float) * liquidHeader.width * liquidHeader.height;
    }

    bool hasHoles = false;

    for (int i = 0; i < ADT_CELLS_PER_GRID; ++i)
    {
        for (int j = 0; j < ADT_CELLS_PER_GRID; ++j)
        {
            adt_MCNK* cell = cells->getMCNK(i, j);
            if (!cell)
                continue;
            holes[i][j] = cell->holes;
            if (!hasHoles && cell->holes != 0)
                hasHoles = true;
        }
    }

    if (hasHoles)
    {
        if (map.liquidMapOffset)
            map.holesOffset = map.liquidMapOffset + map.liquidMapSize;
        else
            map.holesOffset = map.heightMapOffset + map.heightMapSize;

        map.holesSize = sizeof(holes);
    }
    else
    {
        map.holesOffset = 0;
        map.holesSize = 0;
    }

    // Ok all data prepared - store it
    FILE* output = fopen(outputPath.c_str(), "wb");
    if (!output)
    {
        printf("Can't create the output file '%s'\n", outputPath.c_str());
        return false;
    }
    fwrite(&map, sizeof(map), 1, output);
    // Store area data
    fwrite(&areaHeader, sizeof(areaHeader), 1, output);
    if (!(areaHeader.flags & MAP_AREA_NO_AREA))
        fwrite(area_ids, sizeof(area_ids), 1, output);

    // Store height data
    fwrite(&heightHeader, sizeof(heightHeader), 1, output);
    if (!(heightHeader.flags & MAP_HEIGHT_NO_HEIGHT))
    {
        if (heightHeader.flags & MAP_HEIGHT_AS_INT16)
        {
            fwrite(uint16_V9, sizeof(uint16_V9), 1, output);
            fwrite(uint16_V8, sizeof(uint16_V8), 1, output);
        }
        else if (heightHeader.flags & MAP_HEIGHT_AS_INT8)
        {
            fwrite(uint8_V9, sizeof(uint8_V9), 1, output);
            fwrite(uint8_V8, sizeof(uint8_V8), 1, output);
        }
        else
        {
            fwrite(V9, sizeof(V9), 1, output);
            fwrite(V8, sizeof(V8), 1, output);
        }
    }

    if (heightHeader.flags & MAP_HEIGHT_HAS_FLIGHT_BOUNDS)
    {
        fwrite(flight_box_max, sizeof(flight_box_max), 1, output);
        fwrite(flight_box_min, sizeof(flight_box_min), 1, output);
    }

    // Store liquid data if need
    if (map.liquidMapOffset)
    {
        fwrite(&liquidHeader, sizeof(liquidHeader), 1, output);
        if (!(liquidHeader.flags & MAP_LIQUID_NO_TYPE))
        {
            fwrite(liquid_entry, sizeof(liquid_entry), 1, output);
            fwrite(liquid_flags, sizeof(liquid_flags), 1, output);
        }
        if (!(liquidHeader.flags & MAP_LIQUID_NO_HEIGHT))
        {
            for (int y = 0; y < liquidHeader.height; y++)
                fwrite(&liquid_height[y + liquidHeader.offsetY][liquidHeader.offsetX], sizeof(float), liquidHeader.width, output);
        }
    }

    // store hole data
    if (hasHoles)
        fwrite(holes, map.holesSize, 1, output);

    fclose(output);

    return true;
}

void ExtractMapsFromMpq(uint32 build)
{
    std::string mpqFileName;
    std::string outputFileName;
    std::string mpqMapName;

    printf("Extracting maps...\n");

    uint32 map_count = ReadMapDBC();

    ReadLiquidTypeTableDBC();

    std::string path = output_path;
    path += "/maps/";
    CreateDir(path);

    printf("Convert map files\n");
    for (uint32 z = 0; z < map_count; ++z)
    {
        printf("Extract %s (%d/%u)                  \n", map_ids[z].name, z + 1, map_count);
        // Loadup map grid data
        mpqMapName = Acore::StringFormat(R"(World\Maps\{}\{}.wdt)", map_ids[z].name, map_ids[z].name);
        WDT_file wdt;
        if (!wdt.loadFile(mpqMapName, false))
        {
            //            printf("Error loading %s map wdt data\n", map_ids[z].name);
            continue;
        }

        for (uint32 y = 0; y < WDT_MAP_SIZE; ++y)
        {
            for (uint32 x = 0; x < WDT_MAP_SIZE; ++x)
            {
                if (!wdt.main->adt_list[y][x].exist)
                    continue;
                mpqFileName = Acore::StringFormat(R"(World\Maps\{}\{}_{}_{}.adt)", map_ids[z].name, map_ids[z].name, x, y);
                outputFileName = Acore::StringFormat("{}/maps/{:03}{:02}{:02}.map", output_path, map_ids[z].id, y, x);
                ConvertADT(mpqFileName, outputFileName, y, x, build);
            }
            // draw progress bar
            printf("Processing........................%d%%\r", (100 * (y + 1)) / WDT_MAP_SIZE);
        }
    }
    printf("\n");
}

bool ExtractFile( char const* mpq_name, std::string const& filename )
{
    FILE* output = fopen(filename.c_str(), "wb");
    if (!output)
    {
        printf("Can't create the output file '%s'\n", filename.c_str());
        return false;
    }
    MPQFile m(mpq_name);
    if (!m.isEof())
        fwrite(m.getPointer(), 1, m.getSize(), output);

    fclose(output);
    return true;
}

void ExtractDBCFiles(int locale, bool basicLocale)
{
    printf("Extracting dbc files...\n");

    std::set<std::string> dbcfiles;

    // get DBC file list
    for (auto & gOpenArchive : gOpenArchives)
    {
        vector<string> files;
        gOpenArchive->GetFileListTo(files);
        for (auto & file : files)
            if (file.rfind(".dbc") == file.length() - strlen(".dbc"))
                dbcfiles.insert(file);
    }

    std::string path = output_path;
    path += "/dbc/";
    CreateDir(path);
    if (!basicLocale)
    {
        path += langs[locale];
        path += "/";
        CreateDir(path);
    }

    // extract Build info file
    {
        string mpq_name = std::string("component.wow-") + langs[locale] + ".txt";
        string filename = path + mpq_name;

        ExtractFile(mpq_name.c_str(), filename);
    }

    // extract DBCs
    uint32 count = 0;
    for (const auto & dbcfile : dbcfiles)
    {
        string filename = path;
        filename += (dbcfile.c_str() + strlen("DBFilesClient\\"));

        if (FileExists(filename.c_str()))
            continue;

        if (ExtractFile(dbcfile.c_str(), filename))
            ++count;
    }
    printf("Extracted %u DBC files\n\n", count);
}

void ExtractCameraFiles(int locale, bool basicLocale)
{
    printf("Extracting camera files...\n");
    DBCFile camdbc("DBFilesClient\\CinematicCamera.dbc");

    if (!camdbc.open())
    {
        printf("Unable to open CinematicCamera.dbc. Camera extract aborted.\n");
        return;
    }

    // get camera file list from DBC
    std::vector<std::string> camerafiles;
    std::size_t cam_count = camdbc.getRecordCount();

    for (std::size_t i = 0; i < cam_count; ++i)
    {
        std::string camFile(camdbc.getRecord(i).getString(1));
        std::size_t loc = camFile.find(".mdx");
        if (loc != std::string::npos)
        {
            camFile.replace(loc, 4, ".m2");
        }
        camerafiles.push_back(std::string(camFile));
    }

    std::string path = output_path;
    path += "/Cameras/";
    CreateDir(path);
    if (!basicLocale)
    {
        path += langs[locale];
        path += "/";
        CreateDir(path);
    }

    // extract M2s
    uint32 count = 0;
    for (std::string thisFile : camerafiles)
    {
        std::string filename = path;
        filename += (thisFile.c_str() + strlen("Cameras\\"));

        if (std::filesystem::exists(filename))
        {
            continue;
        }

        if (ExtractFile(thisFile.c_str(), filename))
        {
            ++count;
        }
    }
    printf("Extracted %u camera files\n", count);
}

void LoadLocaleMPQFiles(int const locale)
{
    char filename[512];

    sprintf(filename, "%s/Data/%s/locale-%s.MPQ", input_path, langs[locale], langs[locale]);
    new MPQArchive(filename);

    for (int i = 1; i <= 9; ++i)
    {
        char ext[3] = "";
        if (i > 1)
            sprintf(ext, "-%i", i);

        sprintf(filename, "%s/Data/%s/patch-%s%s.MPQ", input_path, langs[locale], langs[locale], ext);
        if (FileExists(filename))
            new MPQArchive(filename);
    }
}

void LoadCommonMPQFiles()
{
    char filename[512];
    int count = sizeof(CONF_mpq_list) / sizeof(char*);
    for (int i = 0; i < count; ++i)
    {
        sprintf(filename, "%s/Data/%s", input_path, CONF_mpq_list[i]);
        if (FileExists(filename))
            new MPQArchive(filename);
    }
}

inline void CloseMPQFiles()
{
    for (auto & gOpenArchive : gOpenArchives) gOpenArchive->close();
    gOpenArchives.clear();
}

int main(int argc, char* arg[])
{
    printf("Map & DBC Extractor\n");
    printf("===================\n\n");

    HandleArgs(argc, arg);

    int FirstLocale = -1;
    uint32 build = 0;

    for (int i = 0; i < LANG_COUNT; i++)
    {
        char tmp1[512];
        sprintf(tmp1, "%s/Data/%s/locale-%s.MPQ", input_path, langs[i], langs[i]);
        if (FileExists(tmp1))
        {
            printf("Detected locale: %s\n", langs[i]);

            //Open MPQs
            LoadLocaleMPQFiles(i);

            if ((CONF_extract & EXTRACT_DBC) == 0)
            {
                FirstLocale = i;
                build = ReadBuild(FirstLocale);
                printf("Detected client build: %u\n", build);
                break;
            }

            //Extract DBC files
            if (FirstLocale < 0)
            {
                FirstLocale = i;
                build = ReadBuild(FirstLocale);
                printf("Detected client build: %u\n", build);
                ExtractDBCFiles(i, true);
            }
            else
                ExtractDBCFiles(i, false);

            //Close MPQs
            CloseMPQFiles();
        }
    }

    if (FirstLocale < 0)
    {
        printf("No locales detected\n");
        return 0;
    }

    if (CONF_extract & EXTRACT_CAMERA)
    {
        printf("Using locale: %s\n", langs[FirstLocale]);

        // Open MPQs
        LoadLocaleMPQFiles(FirstLocale);
        LoadCommonMPQFiles();

        ExtractCameraFiles(FirstLocale, true);
        // Close MPQs
        CloseMPQFiles();
    }

    if (CONF_extract & EXTRACT_MAP)
    {
        printf("Using locale: %s\n", langs[FirstLocale]);

        // Open MPQs
        LoadLocaleMPQFiles(FirstLocale);
        LoadCommonMPQFiles();

        // Extract maps
        ExtractMapsFromMpq(build);

        // Close MPQs
        CloseMPQFiles();
    }

    return 0;
}