#include "mainwizard.hpp"

#include <QDebug>
#include <QDir>

#include "intropage.hpp"
#include "methodselectionpage.hpp"
#include "languageselectionpage.hpp"
#include "existinginstallationpage.hpp"
#include "installationtargetpage.hpp"
#include "componentselectionpage.hpp"
#include "installationpage.hpp"
#include "importpage.hpp"
#include "conclusionpage.hpp"

Wizard::MainWizard::MainWizard(QWidget *parent) :
    QWizard(parent)
{

#ifndef Q_OS_MAC
    setWizardStyle(QWizard::ModernStyle);
#else
    setWizardStyle(QWizard::ClassicStyle);
#endif

    setWindowTitle(tr("OpenMW Wizard"));

    // Set the property for comboboxes to the text instead of index
    setDefaultProperty("QComboBox", "currentText", "currentIndexChanged");

    setDefaultProperty("ComponentListWidget", "mCheckedItems", "checkedItemsChanged");
    setDefaultProperty("InstallationListWidget", "mCurrentText", "currentTextChanged");

    setupInstallations();
    setupPages();
}

void Wizard::MainWizard::setupInstallations()
{
    // TODO: detect existing installations
    QStringList paths;
    paths << QString("/home/pvdk/.wine/drive_c/Program Files/Bethesda Softworks/Morrowind/Data Files");
    paths << QString("/home/pvdk/openmw/Data Files");
    paths << QString("/usr/games/morrowind");

    foreach (const QString &path, paths)
    {
        addInstallation(path);
    }

}

void Wizard::MainWizard::addInstallation(const QString &path)
{
    qDebug() << "add installation in: " << path;
    Installation* install = new Installation();

    install->hasMorrowind = findFiles(QLatin1String("Morrowind"), path);
    install->hasTribunal = findFiles(QLatin1String("Tribunal"), path);
    install->hasBloodmoon = findFiles(QLatin1String("Bloodmoon"), path);

    // Try to autodetect the Morrowind.ini location
    QDir dir(path);
    QFile file(dir.filePath("Morrowind.ini"));

    // Try the parent directory
    // In normal Morrowind installations that's where Morrowind.ini is
    if (!file.exists()) {
        dir.cdUp();
        file.setFileName(dir.filePath(QLatin1String("Morrowind.ini")));
    }

    if (file.exists())
        install->iniPath = file.fileName();

    mInstallations.insert(QDir::toNativeSeparators(path), install);
}

void Wizard::MainWizard::setupPages()
{
    setPage(Page_Intro, new IntroPage(this));
    setPage(Page_MethodSelection, new MethodSelectionPage(this));
    setPage(Page_LanguageSelection, new LanguageSelectionPage(this));
    setPage(Page_ExistingInstallation, new ExistingInstallationPage(this));
    setPage(Page_InstallationTarget, new InstallationTargetPage(this));
    setPage(Page_ComponentSelection, new ComponentSelectionPage(this));
    setPage(Page_Installation, new InstallationPage(this));
    setPage(Page_Import, new ImportPage(this));
    setPage(Page_Conclusion, new ConclusionPage(this));
    setStartId(Page_Intro);
}

bool Wizard::MainWizard::findFiles(const QString &name, const QString &path)
{
    QDir dir(path);

    if (!dir.exists())
        return false;

    // TODO: add MIME handling to make sure the files are real
    if (dir.exists(name + QLatin1String(".esm")) && dir.exists(name + QLatin1String(".bsa")))
    {
        qDebug() << name << " exists!";
        return true;
    } else {
        qDebug() << name << " doesn't exist!";
        return false;
    }

}