/**********************************************************************
 *  main.cpp
 **********************************************************************
 * Copyright (C) 2017-2025 MX Authors
 *
 * Authors: Adrian
 *          MX Linux <http://mxlinux.org>
 *
 * This file is part of mx-conky.
 *
 * mx-conky 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.
 *
 * mx-conky 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 mx-conky.  If not, see <http://www.gnu.org/licenses/>.
 **********************************************************************/

#include "cmd.h"
#include "mainwindow.h"

#include <QApplication>
#include <QDebug>
#include <QDir>
#include <QFileDialog>
#include <QIcon>
#include <QLibraryInfo>
#include <QLocale>
#include <QTranslator>

#include <unistd.h>

#ifndef VERSION
#define VERSION "?.?.?.?"
#endif

// Return the config file used for the newest conky process
QString getRunningConky()
{
    const QString pid = Cmd().getCmdOut("pgrep -u $(id -nu) -nx conky", true);
    if (pid.isEmpty()) {
        return {};
    }
    const QString conkyrc = Cmd().getCmdOutUntrimmed(
        QString("sed -nrz '/^--config=/s///p; /^(-c|--config)/{n;p;}' /proc/%1/cmdline").arg(pid), true);
    if (conkyrc.startsWith("/")) {
        return conkyrc;
    }
    const QString conkywd
        = Cmd().getCmdOutUntrimmed(QString("sed -nrz '/^PWD=/s///p' /proc/%1/environ").arg(pid), true);
    return conkywd + "/" + conkyrc;
}

QString openFile(const QDir &dir)
{
    const QString fileName = getRunningConky();
    if (!fileName.isEmpty()) {
        return fileName;
    }

    const QString selected
        = QFileDialog::getOpenFileName(nullptr, QObject::tr("Select Conky Manager config file"), dir.path());
    if (!selected.isEmpty()) {
        return selected;
    }
    return {};
}

int main(int argc, char *argv[])
{
    // Set Qt platform to XCB (X11) if not already set and we're in X11 environment
    if (qEnvironmentVariableIsEmpty("QT_QPA_PLATFORM")) {
        if (!qEnvironmentVariableIsEmpty("DISPLAY") && qEnvironmentVariableIsEmpty("WAYLAND_DISPLAY")) {
            qputenv("QT_QPA_PLATFORM", "xcb");
        }
    }

    QApplication app(argc, argv);

    QApplication::setApplicationName("mx-conky");
    QApplication::setWindowIcon(QIcon::fromTheme(QApplication::applicationName()));
    QApplication::setOrganizationName("MX-Linux");
    QApplication::setApplicationVersion(VERSION);

    QTranslator qtTran;
    if (qtTran.load("qt_" + QLocale().name(), QLibraryInfo::path(QLibraryInfo::TranslationsPath))) {
        QApplication::installTranslator(&qtTran);
    }

    QTranslator qtBaseTran;
    if (qtBaseTran.load("qtbase_" + QLocale().name(), QLibraryInfo::path(QLibraryInfo::TranslationsPath))) {
        QApplication::installTranslator(&qtBaseTran);
    }

    QTranslator appTran;
    if (appTran.load(QApplication::applicationName() + "_" + QLocale().name(),
                     "/usr/share/" + QApplication::applicationName() + "/locale")) {
        QApplication::installTranslator(&appTran);
    }

    if (getuid() != 0) {
        MainWindow w;
        w.show();
        return QApplication::exec();
    } else {
        QApplication::beep();
        QMessageBox::critical(nullptr, QObject::tr("Error"), QObject::tr("You must run this program as normal user"));
        return EXIT_FAILURE;
    }
}
