// MassBuilderSaveTool
// Copyright (C) 2021-2022 Guillaume Jacquemin
//
// 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 <https://www.gnu.org/licenses/>.

#ifndef SAVETOOL_DEBUG_BUILD
#include <fstream>
#endif

#include <SDL_messagebox.h>

#include <cpuid.h>

#include <errhandlingapi.h>
#include <synchapi.h>
#include <winerror.h>

#include "SaveTool/SaveTool.h"

int main(int argc, char** argv) {
    auto str = std::setlocale(LC_ALL, ".utf-8");
    if(str && !Containers::StringView{str}.hasSuffix(".utf8")) {
        SDL_ShowSimpleMessageBox(SDL_MESSAGEBOX_ERROR, "Error",
                                 "Your system doesn't support UTF-8.", nullptr);
        return EXIT_FAILURE;
    }

    #ifndef SAVETOOL_DEBUG_BUILD
    std::ofstream output{"SaveToolLog.txt", std::ios::trunc|std::ios::out};

    Utility::Debug d{&output};
    Utility::Warning w{&output};
    Utility::Error e{&output};
    #else
    Utility::Warning w{Utility::Debug::defaultOutput()};
    Utility::Error e{Utility::Debug::defaultOutput()};
    #endif

    Utility::Debug{} << "M.A.S.S. Builder Save Tool version " SAVETOOL_VERSION;

    auto mutex_handle = CreateMutexW(nullptr, 0, L"MassBuilderSaveTool");

    if(!mutex_handle) {
        SDL_ShowSimpleMessageBox(SDL_MESSAGEBOX_ERROR, "Error",
                                 "There was an error initialising the single-instance checker.",nullptr);
        return EXIT_FAILURE;
    }

    if(GetLastError() == ERROR_ALREADY_EXISTS) {
        SDL_ShowSimpleMessageBox(SDL_MESSAGEBOX_ERROR, "Error",
                                 "There can be only one running instance of the application.",nullptr);
        return EXIT_FAILURE;
    }

    std::uint32_t brand[12];

    if (!__get_cpuid_max(0x80000004, nullptr)) {
        Utility::Warning{} << "Warning: CPUID features not supported. Can't get the current processor's model.";
    }
    else {
        __get_cpuid(0x80000002, brand+0x0, brand+0x1, brand+0x2, brand+0x3);
        __get_cpuid(0x80000003, brand+0x4, brand+0x5, brand+0x6, brand+0x7);
        __get_cpuid(0x80000004, brand+0x8, brand+0x9, brand+0xa, brand+0xb);
        Utility::Debug{} << "Processor:" << Containers::arrayCast<const char>(brand).data();
    }

    SaveTool app({argc, argv});
    Int result = app.exec();

    ReleaseMutex(mutex_handle);

    return result;
}