/*
The MIT License (MIT)

Copyright (c) 2013 The ioquake Group

Permission is hereby granted, free of charge, to any person obtaining a copy of
this software and associated documentation files (the "Software"), to deal in
the Software without restriction, including without limitation the rights to
use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
the Software, and to permit persons to whom the Software is furnished to do so,
subject to the following conditions:

The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
#include <QDir>
#include <QMessageBox>
#include <QProcess>
#include "mainwindow.h"
#include "ui_mainwindow.h"
#include "installwizard.h"
#include "quakeutils.h"

ioLaunch::ioLaunch(QWidget *parent) :
    QMainWindow(parent),
    ui(new Ui::ioLaunch)
{
    ui->setupUi(this);

    // Calculate the ioquake3 home path.
    const QString homePath = QuakeUtils::calculateHomePath();
    const QDir homeDir(homePath);

    // Try to parse q3config.cfg to get default settings if this is the first time the program has run.
    if (!homePath.isEmpty() && homeDir.exists() && !settings.getHaveRun())
    {
        QuakeUtils::parseQuake3Config(&settings, homePath);
    }

    // On first run, try to get the Q3A path.
    if (!settings.getHaveRun())
    {
        settings.setQuakePath(QuakeUtils::calculateQuake3Path());
    }

    settings.setHaveRun(true);

    // Populate the GUI with values read from settings.
    if (settings.getResolutionMode() >= 0)
    {
        // Predefined.
        ui->cbResolution->setCurrentIndex(2 + settings.getResolutionMode());
    }
    else if (settings.getResolutionMode() == -1)
    {
        // Custom.
        ui->cbResolution->setCurrentIndex(1);
    }
    else if (settings.getResolutionMode() == -2)
    {
        // Desktop.
        ui->cbResolution->setCurrentIndex(0);
    }

    ui->sbWidth->setValue(settings.getResolutionWidth());
    ui->sbHeight->setValue(settings.getResolutionHeight());

    if (settings.getResolutionFullscreen())
    {
        ui->rbFull->setChecked(true);
    }
    else
    {
        ui->rbWin->setChecked(true);
    }
}

ioLaunch::~ioLaunch()
{
    delete ui;
}

void ioLaunch::on_btnLaunch_clicked()
{
    QString ioq3;

#ifdef Q_OS_WIN32
    if(!isQuake3PathValid())
    {
        InstallWizard wizard(this, &settings);
        wizard.exec();

        if(!isQuake3PathValid())
            return;
    }

    ioq3 = QString("\"") + settings.getQuakePath() + "/ioquake3.x86.exe\"";
#else

#if defined Q_OS_MAC
    ioq3 = "open -a ioquake3 --args";
#elif defined Q_OS_UNIX
    ioq3 = "ioquake3";
#else
    #error "Unsupported platform"
#endif

    QString quakePath = settings.getQuakePath();
    if ( !quakePath.isEmpty() )
    {
        ioq3 += QString(" +set fs_basepath \"%1\"").arg(quakePath);
    }
#endif

    int r_mode = settings.getResolutionMode();
    int r_width = settings.getResolutionWidth();
    int r_height = settings.getResolutionHeight();

    // Handle modes outside what ioquake3 recognize.
    if (r_mode == 12)
    {
        r_mode = -1;
        r_width = 1280;
        r_height = 720;
    }
    else if (r_mode == 13)
    {
        r_mode = -1;
        r_width = 1920;
        r_height = 1080;
    }
    else if (r_mode == 14)
    {
        r_mode = -1;
        r_width = 1280;
        r_height = 800;
    }

    ioq3 += QString(" +set r_mode \"%1\"").arg(r_mode);

    if (r_mode == -1)
    {
        ioq3 += QString(" +set r_customwidth %1").arg(r_width) + QString(" +set r_customheight %1").arg(r_height);
    }

    ioq3 += QString(" +set r_fullscreen %1").arg(settings.getResolutionFullscreen() ? "1" : "0");

    if(!QProcess::startDetached(ioq3))
    {
        QMessageBox ioq3Failed;
        ioq3Failed.setText("ioquake3 failed to start!\nIs it installed?\n");
        ioq3Failed.exec();
    }
}

void ioLaunch::on_cbResolution_currentIndexChanged(int index)
{
    if (index == 0)
    {
        // Desktop.
        settings.setResolutionMode(-2);
    }
    else if (index == 1)
    {
        // Custom.
        settings.setResolutionMode(-1);
    }
    else if (index >= 2)
    {
        // Predefined.
        settings.setResolutionMode(index - 2);
    }

    if (index == 1)
    {
        ui->sbWidth->setEnabled(true);
        ui->sbHeight->setEnabled(true);
    }
    else
    {
        ui->sbWidth->setEnabled(false);
        ui->sbHeight->setEnabled(false);
    }
}

void ioLaunch::on_rbFull_toggled(bool checked)
{
    if(checked)
    {
        settings.setResolutionFullscreen(true);
    }
}

void ioLaunch::on_rbWin_toggled(bool checked)
{
    if(checked)
    {
        settings.setResolutionFullscreen(false);
    }
}

void ioLaunch::on_sbWidth_valueChanged(int arg1)
{
    settings.setResolutionWidth(arg1);
}

void ioLaunch::on_sbHeight_valueChanged(int arg1)
{
    settings.setResolutionHeight(arg1);
}

void ioLaunch::on_btnRunInstallWizard_clicked()
{
    InstallWizard wizard(this, &settings);
    wizard.exec();
}

#ifdef Q_OS_WIN32
bool ioLaunch::isQuake3PathValid() const
{
    if (!settings.containsQuakePath())
        return false;

    return !settings.getQuakePath().isEmpty() && QDir(settings.getQuakePath()).exists();
}
#endif