/*

 * Copyright (c) 2014, 2018, Oracle and/or its affiliates. All rights reserved.

 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

 *

 * This code is free software; you can redistribute it and/or modify it

 * under the terms of the GNU General Public License version 2 only, as

 * published by the Free Software Foundation.  Oracle designates this

 * particular file as subject to the "Classpath" exception as provided

 * by Oracle in the LICENSE file that accompanied this code.

 *

 * This code 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

 * version 2 for more details (a copy is included in the LICENSE file that

 * accompanied this code).

 *

 * You should have received a copy of the GNU General Public License version

 * 2 along with this work; if not, write to the Free Software Foundation,

 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

 *

 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA

 * or visit www.oracle.com if you need additional information or have any

 * questions.

 */

#include "GenericPlatform.h"

#include <fstream>

#include <locale>

#ifdef WINDOWS

#include <codecvt>

#endif // WINDOWS

GenericPlatform::GenericPlatform(void) {

}

GenericPlatform::~GenericPlatform(void) {

}

TString GenericPlatform::GetConfigFileName() {

    TString result;

    TString basedir = GetPackageAppDirectory();

    if (basedir.empty() == false) {

        basedir = FilePath::IncludeTrailingSeparator(basedir);

        TString appConfig = basedir + GetAppName() + _T(".cfg");

        if (FilePath::FileExists(appConfig) == true) {

            result = appConfig;

        }

        else {

            result = basedir + _T("package.cfg");

            if (FilePath::FileExists(result) == false) {

                result = _T("");

            }

        }

    }

    return result;

}

TString GenericPlatform::GetPackageAppDirectory() {

#if defined(WINDOWS) || defined(LINUX)

    return FilePath::IncludeTrailingSeparator(

            GetPackageRootDirectory()) + _T("app");

#endif // WINDOWS || LINUX

#ifdef MAC

    return FilePath::IncludeTrailingSeparator(

            GetPackageRootDirectory()) + _T("Java");

#endif

}

TString GenericPlatform::GetPackageLauncherDirectory() {

#if defined(WINDOWS) || defined(LINUX)

    return GetPackageRootDirectory();

#endif // WINDOWS || LINUX

#ifdef MAC

    return FilePath::IncludeTrailingSeparator(

            GetPackageRootDirectory()) + _T("MacOS");

#endif

}

TString GenericPlatform::GetPackageRuntimeBinDirectory() {

#ifdef WINDOWS

    return FilePath::IncludeTrailingSeparator(GetPackageRootDirectory()) + _T("runtime\\bin");

#endif // WINDOWS

#ifdef LINUX

    return FilePath::IncludeTrailingSeparator(GetPackageRootDirectory()) + _T("runtime/bin");

#endif // LINUX

#ifdef MAC

    return FilePath::IncludeTrailingSeparator(GetPackageRootDirectory()) + _T("Plugins/Java.runtime/Contents/Home/bin");

#endif

}

std::list<TString> GenericPlatform::LoadFromFile(TString FileName) {

    std::list<TString> result;

    if (FilePath::FileExists(FileName) == true) {

        std::wifstream stream(FileName.data());

#ifdef WINDOWS

        const std::locale empty_locale = std::locale::empty();

#endif // WINDOWS

#ifdef POSIX

        const std::locale empty_locale = std::locale::classic();

#endif // POSIX

#if defined(WINDOWS)

        const std::locale utf8_locale =

                std::locale(empty_locale, new std::codecvt_utf8<wchar_t>());

        stream.imbue(utf8_locale);

#endif // WINDOWS

        if (stream.is_open() == true) {

            while (stream.eof() == false) {

                std::wstring line;

                std::getline(stream, line);

                // # at the first character will comment out the line.

                if (line.empty() == false && line[0] != '#') {

                    result.push_back(PlatformString(line).toString());

                }

            }

        }

    }

    return result;

}

void GenericPlatform::SaveToFile(TString FileName, std::list<TString> Contents, bool ownerOnly) {

    TString path = FilePath::ExtractFilePath(FileName);

    if (FilePath::DirectoryExists(path) == false) {

        FilePath::CreateDirectory(path, ownerOnly);

    }

    std::wofstream stream(FileName.data());

    FilePath::ChangePermissions(FileName.data(), ownerOnly);

#ifdef WINDOWS

    const std::locale empty_locale = std::locale::empty();

#endif // WINDOWS

#ifdef POSIX

    const std::locale empty_locale = std::locale::classic();

#endif // POSIX

#if defined(WINDOWS)

    const std::locale utf8_locale =

            std::locale(empty_locale, new std::codecvt_utf8<wchar_t>());

    stream.imbue(utf8_locale);

#endif // WINDOWS || MAC

    if (stream.is_open() == true) {

        for (std::list<TString>::const_iterator iterator =

                Contents.begin(); iterator != Contents.end(); iterator++) {

            TString line = *iterator;

            stream << PlatformString(line).toUnicodeString() << std::endl;

        }

    }

}

#if defined(WINDOWS) || defined(LINUX)

TString GenericPlatform::GetAppName() {

    TString result = GetModuleFileName();

    result = FilePath::ExtractFileName(result);

#if defined(WINDOWS)

    result = FilePath::ChangeFileExt(result, _T(""));

#endif

    return result;

}

#endif // WINDOWS || LINUX

std::map<TString, TString> GenericPlatform::GetKeys() {

    std::map<TString, TString> keys;

    keys.insert(std::map<TString, TString>::value_type(CONFIG_VERSION,

            _T("app.version")));

    keys.insert(std::map<TString, TString>::value_type(CONFIG_MAINJAR_KEY,

            _T("app.mainjar")));

    keys.insert(std::map<TString, TString>::value_type(CONFIG_MAINMODULE_KEY,

            _T("app.mainmodule")));

    keys.insert(std::map<TString, TString>::value_type(CONFIG_MAINCLASSNAME_KEY,

            _T("app.mainclass")));

    keys.insert(std::map<TString, TString>::value_type(CONFIG_CLASSPATH_KEY,

            _T("app.classpath")));

    keys.insert(std::map<TString, TString>::value_type(CONFIG_MODULEPATH_KEY,

            _T("app.modulepath")));

    keys.insert(std::map<TString, TString>::value_type(APP_NAME_KEY,

            _T("app.name")));

    keys.insert(std::map<TString, TString>::value_type(CONFIG_APP_ID_KEY,

            _T("app.preferences.id")));

    keys.insert(std::map<TString, TString>::value_type(JVM_RUNTIME_KEY,

            _T("app.runtime")));

    keys.insert(std::map<TString, TString>::value_type(JPACKAGE_APP_DATA_DIR,

            _T("app.identifier")));

    keys.insert(std::map<TString, TString>::value_type(CONFIG_SPLASH_KEY,

            _T("app.splash")));

    keys.insert(std::map<TString, TString>::value_type(CONFIG_APP_MEMORY,

            _T("app.memory")));

    keys.insert(std::map<TString, TString>::value_type(CONFIG_APP_DEBUG,

            _T("app.debug")));

    keys.insert(std::map<TString,

            TString>::value_type(CONFIG_APPLICATION_INSTANCE,

            _T("app.application.instance")));

    keys.insert(std::map<TString,

            TString>::value_type(CONFIG_SECTION_APPLICATION,

            _T("Application")));

    keys.insert(std::map<TString,

            TString>::value_type(CONFIG_SECTION_JVMOPTIONS,

            _T("JVMOptions")));

    keys.insert(std::map<TString,

            TString>::value_type(CONFIG_SECTION_APPCDSJVMOPTIONS,

            _T("AppCDSJVMOptions")));

    keys.insert(std::map<TString,

            TString>::value_type(CONFIG_SECTION_APPCDSGENERATECACHEJVMOPTIONS,

            _T("AppCDSGenerateCacheJVMOptions")));

    keys.insert(std::map<TString,

            TString>::value_type(CONFIG_SECTION_ARGOPTIONS,

            _T("ArgOptions")));

    return keys;

}

#ifdef DEBUG

DebugState GenericPlatform::GetDebugState() {

    DebugState result = dsNone;

    if (IsNativeDebuggerPresent() == true) {

        result = dsNative;

    }

    return result;

}

#endif // DEBUG