/* Copyright (C) 2019 Mr Goldberg
   This file is part of the Goldberg Emulator

   The Goldberg Emulator is 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.

   The Goldberg Emulator 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 the Goldberg Emulator; if not, see
   <http://www.gnu.org/licenses/>.  */

#ifndef __INCLUDED_COMMON_INCLUDES__
#define __INCLUDED_COMMON_INCLUDES__

// OS detection
#if defined(WIN64) || defined(_WIN64) || defined(__MINGW64__)
    #define __WINDOWS_64__
#elif defined(WIN32) || defined(_WIN32) || defined(__MINGW32__)
    #define __WINDOWS_32__
#endif

#if defined(__WINDOWS_32__) || defined(__WINDOWS_64__)
    #define __WINDOWS__
#endif

#if defined(__linux__) || defined(linux)
    #if defined(__x86_64__)
        #define __LINUX_64__
    #else
        #define __LINUX_32__
    #endif
#endif

#if defined(__LINUX_32__) || defined(__LINUX_64__)
    #define __LINUX__
#endif

#if defined(__WINDOWS__)
    #define STEAM_WIN32
    #ifndef NOMINMAX
        #define NOMINMAX
    #endif
#endif

#define STEAM_API_EXPORTS

// C/C++ includes
#include <cstdint>
#include <algorithm>
#include <string>
#include <chrono>
#include <cctype>
#include <iomanip>
#include <fstream>
#include <sstream>
#include <iterator>

#include <vector>
#include <map>
#include <set>
#include <queue>
#include <list>

#include <thread>
#include <mutex>
#include <condition_variable>

#include <string.h>
#include <stdio.h>

// OS specific includes + definitions
#if defined(__WINDOWS__)
    #include <winsock2.h>
    #include <windows.h>
    #include <ws2tcpip.h>
    #include <processthreadsapi.h>
    #include <windows.h>
    #include <direct.h>
    #include <iphlpapi.h> // Include winsock2 before this, or winsock2 iphlpapi will be unavailable
    #include <shlobj.h>

    // we need this for BCryptGenRandom() in base.cpp
    #include <bcrypt.h>

    #define MSG_NOSIGNAL 0

    EXTERN_C IMAGE_DOS_HEADER __ImageBase;
    #define PATH_SEPARATOR "\\"

    #ifdef EMU_EXPERIMENTAL_BUILD
        #include <winhttp.h>
        #include "../detours/detours.h"
    #endif

// Convert a wide Unicode string to an UTF8 string
static inline std::string utf8_encode(const std::wstring &wstr)
{
    if( wstr.empty() ) return std::string();
    int size_needed = WideCharToMultiByte(CP_UTF8, 0, &wstr[0], (int)wstr.size(), NULL, 0, NULL, NULL);
    std::string strTo( size_needed, 0 );
    WideCharToMultiByte                  (CP_UTF8, 0, &wstr[0], (int)wstr.size(), &strTo[0], size_needed, NULL, NULL);
    return strTo;
}

// Convert an UTF8 string to a wide Unicode String
static inline std::wstring utf8_decode(const std::string &str)
{
    if( str.empty() ) return std::wstring();
    int size_needed = MultiByteToWideChar(CP_UTF8, 0, &str[0], (int)str.size(), NULL, 0);
    std::wstring wstrTo( size_needed, 0 );
    MultiByteToWideChar                  (CP_UTF8, 0, &str[0], (int)str.size(), &wstrTo[0], size_needed);
    return wstrTo;
}

static inline void reset_LastError()
{
    SetLastError(0);
}

#elif defined(__LINUX__)
    #ifndef _GNU_SOURCE
        #define _GNU_SOURCE
    #endif // _GNU_SOURCE

    #include <arpa/inet.h>

    #include <sys/types.h>
    #include <sys/stat.h>
    #include <sys/ioctl.h>
    #include <sys/socket.h>
    #include <sys/mount.h>
    #include <sys/statvfs.h>
    #include <sys/time.h>

    #include <netinet/in.h>
    #include <netinet/tcp.h>
    #include <linux/netdevice.h>

    #include <fcntl.h>
    #include <unistd.h>
    #include <dirent.h>
    #include <netdb.h>
    #include <dlfcn.h>
    #include <utime.h>

    #define PATH_MAX_STRING_SIZE 512
    #define PATH_SEPARATOR "/" 
    #define utf8_decode(a) a
    #define reset_LastError()
#endif

// Other libs includes
#include "json/json.hpp"
#include "utfcpp/utf8.h"
#include "controller/gamepad.h"

// Steamsdk includes
#include "sdk_includes/steam_api.h"
#include "sdk_includes/steam_gameserver.h"
#include "sdk_includes/steamdatagram_tickets.h"

// PRINT_DEBUG definition
// notice the extra call to WSASetLastError(0) in Windows def
#ifndef EMU_RELEASE_BUILD
    // we need this for printf specifiers for intptr_t such as PRIdPTR
    #include <inttypes.h>
    
    //#define PRINT_DEBUG(...) fprintf(stdout, __VA_ARGS__)
    extern const std::string dbg_log_file;
    extern const std::chrono::time_point<std::chrono::high_resolution_clock> startup_counter;
    #if defined(__WINDOWS__)
        #define PRINT_DEBUG(a, ...) do {                                                                                                                     \
            auto __prnt_dbg_ctr = std::chrono::high_resolution_clock::now();                                                                                 \
            auto __prnt_dbg_duration = __prnt_dbg_ctr - startup_counter;                                                                                     \
            auto __prnt_dbg_micro = std::chrono::duration_cast<std::chrono::duration<unsigned long long, std::micro>>(__prnt_dbg_duration);                  \
            auto __prnt_dbg_ms = std::chrono::duration_cast<std::chrono::duration<unsigned long long, std::milli>>(__prnt_dbg_duration);                     \
            auto __prnt_dbg_f = fopen(dbg_log_file.c_str(), "a");                                                                                            \
            fprintf(__prnt_dbg_f, "[%llu ms, %llu us] [tid %lu] " a, __prnt_dbg_ms.count(), __prnt_dbg_micro.count(), GetCurrentThreadId(), __VA_ARGS__);    \
            fclose(__prnt_dbg_f);                                                                                                                            \
            WSASetLastError(0);                                                                                                                              \
        } while (0)
    #elif defined(__LINUX__)
        #include <sys/syscall.h>
        #define PRINT_DEBUG(a, ...) do {                                                                                                                      \
            auto __prnt_dbg_ctr = std::chrono::high_resolution_clock::now();                                                                                  \
            auto __prnt_dbg_duration = __prnt_dbg_ctr - startup_counter;                                                                                      \
            auto __prnt_dbg_micro = std::chrono::duration_cast<std::chrono::duration<unsigned long long, std::micro>>(__prnt_dbg_duration);                   \
            auto __prnt_dbg_ms = std::chrono::duration_cast<std::chrono::duration<unsigned long long, std::milli>>(__prnt_dbg_duration);                      \
            auto __prnt_dbg_f = fopen(dbg_log_file.c_str(), "a");                                                                                             \
            fprintf(__prnt_dbg_f, "[%llu ms, %llu us] [tid %ld] " a, __prnt_dbg_ms.count(), __prnt_dbg_micro.count(), syscall(SYS_gettid), ##__VA_ARGS__);    \
            fclose(__prnt_dbg_f);                                                                                                                             \
        } while (0)
    #endif
#else // EMU_RELEASE_BUILD
    #define PRINT_DEBUG(...)
#endif // EMU_RELEASE_BUILD

static inline std::string ascii_to_lowercase(std::string data) {
    std::transform(data.begin(), data.end(), data.begin(),
        [](unsigned char c){ return std::tolower(c); });
    return data;
}

static inline void thisThreadYieldFor(std::chrono::microseconds u)
{
    PRINT_DEBUG("Thread is waiting for %lld us\n", (long long int)u.count());
    const auto start = std::chrono::high_resolution_clock::now();
    const auto end = start + u;
    do
    {
        std::this_thread::yield();
    }
    while (std::chrono::high_resolution_clock::now() < end);
    PRINT_DEBUG("Thread finished waiting\n");
}

static std::string uint8_vector_to_hex_string(std::vector<uint8_t>& v)
{
    std::string result;
    result.reserve(v.size() * 2);   // two digits per character

    static constexpr char hex[] = "0123456789ABCDEF";

    for (uint8_t c : v)
    {
        result.push_back(hex[c / 16]);
        result.push_back(hex[c % 16]);
    }

    return result;
}

// Emulator includes
// add them here after the inline functions definitions
#include "net.pb.h"
#include "settings.h"
#include "local_storage.h"
#include "network.h"

// Emulator defines
#define CLIENT_HSTEAMUSER 1
#define SERVER_HSTEAMUSER 1

#define DEFAULT_NAME "Noob"
#define PROGRAM_NAME_1 "Go"
#define PROGRAM_NAME_2 "ld"
#define PROGRAM_NAME_3 "be"
#define PROGRAM_NAME_4 "rg "
#define PROGRAM_NAME_5 "St"
#define PROGRAM_NAME_6 "ea"
#define PROGRAM_NAME_7 "mE"
#define PROGRAM_NAME_8 "mu"

#define DEFAULT_LANGUAGE "english"

#define LOBBY_CONNECT_APPID ((uint32)-2)

#endif//__INCLUDED_COMMON_INCLUDES__