// Copyright (c) 2014-2019, The Monero Project
//
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without modification, are
// permitted provided that the following conditions are met:
//
// 1. Redistributions of source code must retain the above copyright notice, this list of
//    conditions and the following disclaimer.
//
// 2. Redistributions in binary form must reproduce the above copyright notice, this list
//    of conditions and the following disclaimer in the documentation and/or other
//    materials provided with the distribution.
//
// 3. Neither the name of the copyright holder nor the names of its contributors may be
//    used to endorse or promote products derived from this software without specific
//    prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY
// EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
// MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
// THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
// PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
// STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF
// THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

#include <QtCore>
#include <QCoreApplication>
#include <QtGlobal>

#include "TailsOS.h"
#include "utils.h"

bool fileExists(QString path) {
    QFileInfo check_file(path);
    return check_file.exists() && check_file.isFile();
}

QByteArray fileGetContents(QString path)
{
    QFile file(path);
    if (!file.open(QFile::ReadOnly))
    {
        throw std::runtime_error(QString("failed to open %1").arg(path).toStdString());
    }

    QByteArray data;
    data.resize(file.size());
    if (file.read(data.data(), data.size()) != data.size())
    {
        throw std::runtime_error(QString("failed to read %1").arg(path).toStdString());
    }

    return data;
}

QByteArray fileOpen(QString path) {
    QFile file(path);
    if(!file.open(QFile::ReadOnly | QFile::Text))
        return QByteArray();

    QByteArray data = file.readAll();
    file.close();
    return data;
}

bool fileWrite(QString path, QString data) {
    QFile file(path);
    if(file.open(QIODevice::WriteOnly)){
        QTextStream out(&file);
        out << data << '\n';
        file.close();
        return true;
    }

    return false;
}

QString getAccountName(){
    QString accountName = qgetenv("USER"); // mac/linux
    if (accountName.isEmpty())
        accountName = qgetenv("USERNAME"); // Windows
    if (accountName.isEmpty())
        accountName = "My monero Account";
    return accountName;
}

#ifdef Q_OS_LINUX
QString xdgMime(){
    return QString(
        "[Desktop Entry]\n"
        "Name=Monero GUI\n"
        "GenericName=Monero-GUI\n"
        "X-GNOME-FullName=Monero-GUI\n"
        "Comment=Monero GUI\n"
        "Keywords=Monero;\n"
        "Exec=%1 %u\n"
        "Terminal=false\n"
        "Type=Application\n"
        "Icon=monero\n"
        "Categories=Network;GNOME;Qt;\n"
        "MimeType=x-scheme-handler/monero;x-scheme-handler/moneroseed\n"
        "StartupNotify=true\n"
        "X-GNOME-Bugzilla-Bugzilla=GNOME\n"
        "X-GNOME-UsesNotifications=true\n"
        "StartupWMClass=monero-wallet-gui\n"
    ).arg(QCoreApplication::applicationFilePath());
}

void registerXdgMime(){
    // Register desktop entry
    // - MacOS handled via Info.plist
    // - Windows handled in the installer by rbrunner7
    // - Linux written to `QStandardPaths::ApplicationsLocation`
    // - Tails written to persistent dotfiles
    QString mime = xdgMime();
    QString appPath = QStandardPaths::writableLocation(QStandardPaths::ApplicationsLocation);
    QString filePath = QString("%1/monero-gui.desktop").arg(appPath);

    if (TailsOS::detect())
    {
        if (TailsOS::detectDotPersistence() && TailsOS::usePersistence)
        {
            TailsOS::persistXdgMime(filePath, mime);
        }
    }
    else
    {
        QDir().mkpath(QFileInfo(filePath).path());
        fileWrite(filePath, mime);
    }
}
#endif

QString randomUserAgent(){
    QStringList urand;
    urand << "Mozilla/5.0 (Windows NT 6.1; WOW64; rv:40.0) Gecko/20100101 Firefox/40.1"
          << "Mozilla/5.0 (Windows NT 6.3; rv:36.0) Gecko/20100101 Firefox/36.0"
          << "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_10; rv:33.0) Gecko/20100101 Firefox/33.0"
          << "Mozilla/5.0 (X11; Linux i586; rv:31.0) Gecko/20100101 Firefox/31.0"
          << "Mozilla/5.0 (Windows NT 6.1; WOW64; rv:31.0) Gecko/20130401 Firefox/31.0"
          << "Mozilla/5.0 (Windows NT 5.1; rv:31.0) Gecko/20100101 Firefox/31.0"
          << "Mozilla/5.0 (Windows NT 6.1; WOW64; rv:29.0) Gecko/20120101 Firefox/29.0"
          << "Mozilla/5.0 (Windows NT 6.1; Win64; x64; rv:25.0) Gecko/20100101 Firefox/29.0"
          << "Mozilla/5.0 (X11; OpenBSD amd64; rv:28.0) Gecko/20100101 Firefox/28.0"
          << "Mozilla/5.0 (X11; Linux x86_64; rv:28.0) Gecko/20100101  Firefox/28.0"
          << "Mozilla/5.0 (Windows NT 6.1; rv:27.3) Gecko/20130101 Firefox/27.3"
          << "Mozilla/5.0 (Windows NT 6.2; Win64; x64; rv:27.0) Gecko/20121011 Firefox/27.0"
          << "Mozilla/5.0 (Windows NT 6.1; Win64; x64; rv:25.0) Gecko/20100101 Firefox/25.0"
          << "Mozilla/5.0 (Macintosh; Intel Mac OS X 10.6; rv:25.0) Gecko/20100101 Firefox/25.0"
          << "Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:24.0) Gecko/20100101 Firefox/24.0"
          << "Mozilla/5.0 (Windows NT 6.0; WOW64; rv:24.0) Gecko/20100101 Firefox/24.0"
          << "Mozilla/5.0 (Macintosh; Intel Mac OS X 10.8; rv:24.0) Gecko/20100101 Firefox/24.0"
          << "Mozilla/5.0 (Windows NT 6.2; rv:22.0) Gecko/20130405 Firefox/23.0"
          << "Mozilla/5.0 (Windows NT 6.1; WOW64; rv:23.0) Gecko/20130406 Firefox/23.0"
          << "Mozilla/5.0 (Windows NT 6.1; Win64; x64; rv:23.0) Gecko/20131011 Firefox/23.0"
          << "Mozilla/5.0 (Windows NT 6.2; rv:22.0) Gecko/20130405 Firefox/22.0"
          << "Mozilla/5.0 (Windows NT 6.1; Win64; x64; rv:22.0) Gecko/20130328 Firefox/22.0"
          << "Mozilla/5.0 (Windows NT 6.1; rv:22.0) Gecko/20130405 Firefox/22.0"
          << "Mozilla/5.0 (Microsoft Windows NT 6.2.9200.0); rv:22.0) Gecko/20130405 Firefox/22.0"
          << "Mozilla/5.0 (Windows NT 6.2; Win64; x64; rv:16.0.1) Gecko/20121011 Firefox/21.0.1"
          << "Mozilla/5.0 (Windows NT 6.1; Win64; x64; rv:16.0.1) Gecko/20121011 Firefox/21.0.1"
          << "Mozilla/5.0 (Windows NT 6.2; Win64; x64; rv:21.0.0) Gecko/20121011 Firefox/21.0.0"
          << "Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:21.0) Gecko/20130331 Firefox/21.0"
          << "Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:21.0) Gecko/20100101 Firefox/21.0"
          << "Mozilla/5.0 (X11; Linux i686; rv:21.0) Gecko/20100101 Firefox/21.0"
          << "Mozilla/5.0 (Windows NT 6.2; WOW64; rv:21.0) Gecko/20130514 Firefox/21.0"
          << "Mozilla/5.0 (Windows NT 6.2; rv:21.0) Gecko/20130326 Firefox/21.0"
          << "Mozilla/5.0 (Windows NT 6.1; WOW64; rv:21.0) Gecko/20130401 Firefox/21.0"
          << "Mozilla/5.0 (Windows NT 6.1; WOW64; rv:21.0) Gecko/20130331 Firefox/21.0"
          << "Mozilla/5.0 (Windows NT 6.1; WOW64; rv:21.0) Gecko/20130330 Firefox/21.0"
          << "Mozilla/5.0 (Windows NT 6.1; WOW64; rv:21.0) Gecko/20100101 Firefox/21.0"
          << "Mozilla/5.0 (Windows NT 6.1; rv:21.0) Gecko/20130401 Firefox/21.0"
          << "Mozilla/5.0 (Windows NT 6.1; rv:21.0) Gecko/20130328 Firefox/21.0"
          << "Mozilla/5.0 (Windows NT 6.1; rv:21.0) Gecko/20100101 Firefox/21.0"
          << "Mozilla/5.0 (Windows NT 5.1; rv:21.0) Gecko/20130401 Firefox/21.0"
          << "Mozilla/5.0 (Windows NT 5.1; rv:21.0) Gecko/20130331 Firefox/21.0"
          << "Mozilla/5.0 (Windows NT 5.1; rv:21.0) Gecko/20100101 Firefox/21.0"
          << "Mozilla/5.0 (Windows NT 5.0; rv:21.0) Gecko/20100101 Firefox/21.0"
          << "Mozilla/5.0 (Macintosh; Intel Mac OS X 10.8; rv:21.0) Gecko/20100101 Firefox/21.0"
          << "Mozilla/5.0 (Windows NT 6.2; Win64; x64;) Gecko/20100101 Firefox/20.0"
          << "Mozilla/5.0 (Windows x86; rv:19.0) Gecko/20100101 Firefox/19.0"
          << "Mozilla/5.0 (Windows NT 6.1; rv:6.0) Gecko/20100101 Firefox/19.0"
          << "Mozilla/5.0 (Windows NT 6.1; rv:14.0) Gecko/20100101 Firefox/18.0.1"
          << "Mozilla/5.0 (Windows NT 6.1; WOW64; rv:18.0)  Gecko/20100101 Firefox/18.0"
          << "Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:17.0) Gecko/20100101 Firefox/17.0.6"
          << "Mozilla/5.0 (X11; Ubuntu; Linux armv7l; rv:17.0) Gecko/20100101 Firefox/17.0"
          << "Mozilla/6.0 (Windows NT 6.2; WOW64; rv:16.0.1) Gecko/20121011 Firefox/16.0.1"
          << "Mozilla/5.0 (Windows NT 6.2; WOW64; rv:16.0.1) Gecko/20121011 Firefox/16.0.1"
          << "Mozilla/5.0 (Windows NT 6.2; Win64; x64; rv:16.0.1) Gecko/20121011 Firefox/16.0.1"
          << "Mozilla/5.0 (X11; NetBSD amd64; rv:16.0) Gecko/20121102 Firefox/16.0"
          << "Mozilla/5.0 (Windows NT 6.1; rv:15.0) Gecko/20120716 Firefox/15.0a2"
          << "Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.9.1.16) Gecko/20120427 Firefox/15.0a1"
          << "Mozilla/5.0 (Windows NT 6.1; WOW64; rv:15.0) Gecko/20120427 Firefox/15.0a1"
          << "Mozilla/5.0 (Windows NT 6.2; WOW64; rv:15.0) Gecko/20120910144328 Firefox/15.0.2"
          << "Mozilla/5.0 (X11; Ubuntu; Linux i686; rv:15.0) Gecko/20100101 Firefox/15.0.1"
          << "Mozilla/5.0 (Windows; U; Windows NT 5.1; rv:15.0) Gecko/20121011 Firefox/15.0.1"
          << "Mozilla/5.0 (Windows NT 6.1; Win64; x64; rv:14.0) Gecko/20120405 Firefox/14.0a1"
          << "Mozilla/5.0 (Windows NT 6.1; rv:14.0) Gecko/20120405 Firefox/14.0a1"
          << "Mozilla/5.0 (Windows NT 5.1; rv:14.0) Gecko/20120405 Firefox/14.0a1"
          << "Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:14.0) Gecko/20100101 Firefox/14.0.1"
          << "Mozilla/5.0 (X11; Ubuntu; Linux i686; rv:14.0) Gecko/20100101 Firefox/14.0.1"
          << "Mozilla/5.0 (Windows; U; Windows NT 6.1; WOW64; en-US; rv:2.0.4) Gecko/20120718 AskTbAVR-IDW/3.12.5.17700 Firefox/14.0.1"
          << "Mozilla/5.0 (Windows NT 6.1; rv:12.0) Gecko/20120403211507 Firefox/14.0.1"
          << "Mozilla/5.0 (Windows NT 6.1; rv:12.0) Gecko/ 20120405 Firefox/14.0.1"
          << "Mozilla/5.0 (Windows NT 6.0; rv:14.0) Gecko/20100101 Firefox/14.0.1"
          << "Mozilla/5.0 (Windows NT 5.1; rv:15.0) Gecko/20100101 Firefox/13.0.1"
          << "Mozilla/5.0 (Windows NT 6.1; rv:12.0) Gecko/20120403211507 Firefox/12.0"
          << "Mozilla/5.0 (Windows NT 6.1; de;rv:12.0) Gecko/20120403211507 Firefox/12.0";

    // @TODO: Qt 5.10 - QRandomGenerator
    int irand = rand() % urand.length();
    return urand.at(irand);
}
