/*****************************************************************************
* gta5sync GRAND THEFT AUTO V SYNC
* Copyright (C) 2016 Syping
*
* This program 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.
*
* This program 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 this program.  If not, see <http://www.gnu.org/licenses/>.
*****************************************************************************/

#include "ProfileInterface.h"
#include "ui_ProfileInterface.h"
#include "SidebarGenerator.h"
#include "SnapmaticWidget.h"
#include "DatabaseThread.h"
#include "SavegameWidget.h"
#include "PictureExport.h"
#include "StandardPaths.h"
#include "ProfileLoader.h"
#include "ExportThread.h"
#include <QProgressDialog>
#include <QProgressBar>
#include <QInputDialog>
#include <QPushButton>
#include <QSpacerItem>
#include <QMessageBox>
#include <QFileDialog>
#include <QEventLoop>
#include <QScrollBar>
#include <QFileInfo>
#include <QPalette>
#include <QRegExp>
#include <QDebug>
#include <QColor>
#include <QTimer>
#include <QFile>
#include <QUrl>
#include <QDir>

ProfileInterface::ProfileInterface(ProfileDatabase *profileDB, CrewDatabase *crewDB, DatabaseThread *threadDB, QWidget *parent) :
    QWidget(parent), profileDB(profileDB), crewDB(crewDB), threadDB(threadDB),
    ui(new Ui::ProfileInterface)
{
    ui->setupUi(this);
    ui->cmdImport->setEnabled(false);
    ui->cmdCloseProfile->setEnabled(false);
    loadingStr = ui->labProfileLoading->text();
    selectedWidgts = 0;
    profileFolder = "";
    profileLoader = 0;
    saSpacerItem = 0;

    QPalette palette;
    QColor baseColor = palette.base().color();
    ui->saProfile->setStyleSheet(QString("QWidget#saProfileContent{background-color: rgb(%1, %2, %3)}").arg(QString::number(baseColor.red()),QString::number(baseColor.green()),QString::number(baseColor.blue())));
}

ProfileInterface::~ProfileInterface()
{
    foreach(ProfileWidget *widget, widgets.keys())
    {
        widgets.remove(widget);
        widget->deleteLater();
        delete widget;
    }
    foreach(SavegameData *savegame, savegames)
    {
        savegames.removeAll(savegame);
        savegame->deleteLater();
        delete savegame;
    }
    foreach(SnapmaticPicture *picture, pictures)
    {
        pictures.removeAll(picture);
        picture->deleteLater();
        delete picture;
    }
    profileLoader->deleteLater();
    delete profileLoader;

    delete ui;
}

void ProfileInterface::setProfileFolder(QString folder, QString profile)
{
    profileFolder = folder;
    profileName = profile;
}

void ProfileInterface::setupProfileInterface()
{
    ui->labProfileLoading->setText(tr("Loading..."));
    profileLoader = new ProfileLoader(profileFolder, crewDB);
    QObject::connect(profileLoader, SIGNAL(savegameLoaded(SavegameData*, QString)), this, SLOT(savegameLoaded(SavegameData*, QString)));
    QObject::connect(profileLoader, SIGNAL(pictureLoaded(SnapmaticPicture*, QString)), this, SLOT(pictureLoaded(SnapmaticPicture*, QString)));
    QObject::connect(profileLoader, SIGNAL(loadingProgress(int,int)), this, SLOT(loadingProgress(int,int)));
    QObject::connect(profileLoader, SIGNAL(finished()), this, SLOT(profileLoaded_p()));
    profileLoader->start();
}

void ProfileInterface::savegameLoaded(SavegameData *savegame, QString savegamePath)
{
    savegameLoaded_f(savegame, savegamePath, false);
}

void ProfileInterface::savegameLoaded_f(SavegameData *savegame, QString savegamePath, bool inserted)
{
    SavegameWidget *sgdWidget = new SavegameWidget();
    sgdWidget->setSavegameData(savegame, savegamePath);
    widgets[sgdWidget] = "SGD" + QFileInfo(savegamePath).fileName();
    savegames.append(savegame);
    if (selectedWidgts != 0) { sgdWidget->setSelectionMode(true); }
    QObject::connect(sgdWidget, SIGNAL(savegameDeleted()), this, SLOT(savegameDeleted()));
    QObject::connect(sgdWidget, SIGNAL(widgetSelected()), this, SLOT(profileWidgetSelected()));
    QObject::connect(sgdWidget, SIGNAL(widgetDeselected()), this, SLOT(profileWidgetDeselected()));
    QObject::connect(sgdWidget, SIGNAL(allWidgetsSelected()), this, SLOT(selectAllWidgets()));
    QObject::connect(sgdWidget, SIGNAL(allWidgetsDeselected()), this, SLOT(deselectAllWidgets()));
    if (inserted) { insertSavegameIPI(sgdWidget); }
}

void ProfileInterface::pictureLoaded(SnapmaticPicture *picture, QString picturePath)
{
    pictureLoaded_f(picture, picturePath, false);
}

void ProfileInterface::pictureLoaded_f(SnapmaticPicture *picture, QString picturePath, bool inserted)
{
    SnapmaticWidget *picWidget = new SnapmaticWidget(profileDB, threadDB);
    picWidget->setSnapmaticPicture(picture, picturePath);
    widgets[picWidget] = "PIC" + picture->getPictureSortStr();
    pictures.append(picture);
    if (selectedWidgts != 0) { picWidget->setSelectionMode(true); }
    QObject::connect(picWidget, SIGNAL(pictureDeleted()), this, SLOT(pictureDeleted()));
    QObject::connect(picWidget, SIGNAL(widgetSelected()), this, SLOT(profileWidgetSelected()));
    QObject::connect(picWidget, SIGNAL(widgetDeselected()), this, SLOT(profileWidgetDeselected()));
    QObject::connect(picWidget, SIGNAL(allWidgetsSelected()), this, SLOT(selectAllWidgets()));
    QObject::connect(picWidget, SIGNAL(allWidgetsDeselected()), this, SLOT(deselectAllWidgets()));
    if (inserted) { insertSnapmaticIPI(picWidget); }
}

void ProfileInterface::loadingProgress(int value, int maximum)
{
    ui->pbPictureLoading->setMaximum(maximum);
    ui->pbPictureLoading->setValue(value);
    ui->labProfileLoading->setText(loadingStr.arg(QString::number(value), QString::number(maximum)));
}

void ProfileInterface::insertSnapmaticIPI(QWidget *widget)
{
    ProfileWidget *proWidget = (ProfileWidget*)widget;
    if (widgets.contains(proWidget))
    {
        QString widgetKey = widgets[proWidget];
        QStringList widgetsKeyList = widgets.values();
        QStringList pictureKeyList = widgetsKeyList.filter("PIC", Qt::CaseSensitive);
#if QT_VERSION >= 0x050600
        qSort(pictureKeyList.rbegin(), pictureKeyList.rend());
#else
        qSort(pictureKeyList.begin(), pictureKeyList.end(), qGreater<QString>());
#endif
        int picIndex = pictureKeyList.indexOf(QRegExp(widgetKey));
        ui->vlSnapmatic->insertWidget(picIndex, proWidget);

        qApp->processEvents();
        ui->saProfile->ensureWidgetVisible(proWidget, 0, 0);
    }
}

void ProfileInterface::insertSavegameIPI(QWidget *widget)
{
    ProfileWidget *proWidget = (ProfileWidget*)widget;
    if (widgets.contains(proWidget))
    {
        QString widgetKey = widgets[proWidget];
        QStringList widgetsKeyList = widgets.values();
        QStringList savegameKeyList = widgetsKeyList.filter("SGD", Qt::CaseSensitive);
        qSort(savegameKeyList.begin(), savegameKeyList.end());
        int sgdIndex = savegameKeyList.indexOf(QRegExp(widgetKey));
        ui->vlSavegame->insertWidget(sgdIndex, proWidget);

        qApp->processEvents();
        ui->saProfile->ensureWidgetVisible(proWidget, 0, 0);
    }
}

void ProfileInterface::sortingProfileInterface()
{
    ui->vlSavegame->setEnabled(false);
    ui->vlSnapmatic->setEnabled(false);

    QStringList widgetsKeyList = widgets.values();
    qSort(widgetsKeyList.begin(), widgetsKeyList.end());

    foreach(QString widgetKey, widgetsKeyList)
    {
        ProfileWidget *widget = widgets.key(widgetKey);
        if (widget->getWidgetType() == "SnapmaticWidget")
        {
            ui->vlSnapmatic->insertWidget(0, widget);
        }
        else if (widget->getWidgetType() == "SavegameWidget")
        {
            ui->vlSavegame->addWidget(widget);
        }
    }

    ui->vlSavegame->setEnabled(true);
    ui->vlSnapmatic->setEnabled(true);

    qApp->processEvents();
}

void ProfileInterface::profileLoaded_p()
{
    sortingProfileInterface();
    saSpacerItem = new QSpacerItem(0, 0, QSizePolicy::Minimum, QSizePolicy::Expanding);
    ui->saProfileContent->layout()->addItem(saSpacerItem);
    ui->swProfile->setCurrentWidget(ui->pageProfile);
    ui->cmdCloseProfile->setEnabled(true);
    ui->cmdImport->setEnabled(true);
    emit profileLoaded();
}

void ProfileInterface::savegameDeleted()
{
    savegameDeleted_f((SavegameWidget*)sender());
}

void ProfileInterface::savegameDeleted_f(QWidget *sgdWidget_)
{
    SavegameWidget *sgdWidget = (SavegameWidget*)sgdWidget_;
    SavegameData *savegame = sgdWidget->getSavegame();
    if (sgdWidget->isSelected()) { sgdWidget->setSelected(false); }
    sgdWidget->close();
    savegames.removeAll(savegame);
    delete savegame;
}

void ProfileInterface::pictureDeleted()
{
    pictureDeleted_f((SnapmaticWidget*)sender());
}

void ProfileInterface::pictureDeleted_f(QWidget *picWidget_)
{
    SnapmaticWidget *picWidget = (SnapmaticWidget*)picWidget_;
    SnapmaticPicture *picture = picWidget->getPicture();
    if (picWidget->isSelected()) { picWidget->setSelected(false); }
    picWidget->close();
    pictures.removeAll(picture);
    delete picture;
}

void ProfileInterface::on_cmdCloseProfile_clicked()
{
    emit profileClosed();
}

void ProfileInterface::on_cmdImport_clicked()
{
    QSettings settings("Syping", "gta5sync");
    settings.beginGroup("FileDialogs");

fileDialogPreOpen:
    QFileDialog fileDialog(this);
    fileDialog.setFileMode(QFileDialog::AnyFile);
    fileDialog.setViewMode(QFileDialog::Detail);
    fileDialog.setAcceptMode(QFileDialog::AcceptOpen);
    fileDialog.setOption(QFileDialog::DontUseNativeDialog, true);
    fileDialog.setWindowTitle(tr("Import copy"));
    fileDialog.setWindowFlags(fileDialog.windowFlags()^Qt::WindowContextHelpButtonHint);

    QStringList filters;
    filters << tr("All profile files (SGTA* PGTA*)");
    filters << tr("Savegames files (SGTA*)");
    filters << tr("Snapmatic pictures (PGTA*)");
    filters << tr("All files (**)");
    fileDialog.setNameFilters(filters);

    QList<QUrl> sidebarUrls = SidebarGenerator::generateSidebarUrls(fileDialog.sidebarUrls());

    fileDialog.setSidebarUrls(sidebarUrls);
    fileDialog.restoreState(settings.value("ImportCopy","").toByteArray());

    if (fileDialog.exec())
    {
        QStringList selectedFiles = fileDialog.selectedFiles();
        if (selectedFiles.length() == 1)
        {
            QString selectedFile = selectedFiles.at(0);
            QFileInfo selectedFileInfo(selectedFile);
            QString selectedFileName = selectedFileInfo.fileName();
            if (QFile::exists(selectedFile))
            {
                if (selectedFileName.left(4) == "PGTA")
                {
                    SnapmaticPicture *picture = new SnapmaticPicture(selectedFile);
                    if (picture->readingPicture())
                    {
                        importSnapmaticPicture(picture, selectedFile);
                    }
                    else
                    {
                        QMessageBox::warning(this, tr("Import copy"), tr("Failed to read Snapmatic picture"));
                        picture->deleteLater();
                        delete picture;
                        goto fileDialogPreOpen;
                    }
                }
                else if (selectedFileName.left(4) == "SGTA")
                {
                    SavegameData *savegame = new SavegameData(selectedFile);
                    if (savegame->readingSavegame())
                    {
                        importSavegameData(savegame, selectedFile);
                    }
                    else
                    {
                        QMessageBox::warning(this, tr("Import copy"), tr("Failed to read Savegame file"));
                        savegame->deleteLater();
                        delete savegame;
                        goto fileDialogPreOpen;
                    }
                }
                else
                {
                    SnapmaticPicture *picture = new SnapmaticPicture(selectedFile);
                    SavegameData *savegame = new SavegameData(selectedFile);
                    if (picture->readingPicture())
                    {
                        importSnapmaticPicture(picture, selectedFile);
                        savegame->deleteLater();
                        delete savegame;
                    }
                    else if (savegame->readingSavegame())
                    {
                        importSavegameData(savegame, selectedFile);
                        picture->deleteLater();
                        delete picture;
                    }
                    else
                    {
                        savegame->deleteLater();
                        picture->deleteLater();
                        delete savegame;
                        delete picture;
                        QMessageBox::warning(this, tr("Import copy"), tr("Can't import %1 because of not valid file format").arg("\""+selectedFileName+"\""));
                        goto fileDialogPreOpen;
                    }
                }
            }
            else
            {
                QMessageBox::warning(this, tr("Import copy"), tr("No valid file is selected"));
                goto fileDialogPreOpen;
            }
        }
        else
        {
            QMessageBox::warning(this, tr("Import copy"), tr("No valid file is selected"));
            goto fileDialogPreOpen;
        }
    }

    settings.setValue("ImportCopy", fileDialog.saveState());
    settings.endGroup();
}

bool ProfileInterface::importSnapmaticPicture(SnapmaticPicture *picture, QString picPath)
{
    QFileInfo picFileInfo(picPath);
    QString picFileName = picFileInfo.fileName();
    if (picFileName.left(4) != "PGTA")
    {
        QMessageBox::warning(this, tr("Import copy"), tr("Failed to import copy of Snapmatic picture because the file not begin with PGTA"));
        return false;
    }
    else if (QFile::copy(picPath, profileFolder + "/" + picFileName))
    {
        pictureLoaded_f(picture, profileFolder + "/" + picFileName, true);
        return true;
    }
    else
    {
        QMessageBox::warning(this, tr("Import copy"), tr("Failed to import copy of Snapmatic picture because the copy failed"));
        return false;
    }
}

bool ProfileInterface::importSavegameData(SavegameData *savegame, QString sgdPath)
{
    QString sgdFileName;
    bool foundFree = 0;
    int currentSgd = 0;

    while (currentSgd < 15 && !foundFree)
    {
        QString sgdNumber = QString::number(currentSgd);
        if (sgdNumber.length() == 1)
        {
            sgdNumber.insert(0, "0");
        }
        sgdFileName = "SGTA500" + sgdNumber;

        if (!QFile::exists(profileFolder + "/" + sgdFileName))
        {
            foundFree = true;
        }
        currentSgd++;
    }

    if (foundFree)
    {
        if (QFile::copy(sgdPath, profileFolder + "/" + sgdFileName))
        {
            savegameLoaded_f(savegame, profileFolder + "/" + sgdFileName, true);
            return true;
        }
        else
        {
            QMessageBox::warning(this, tr("Import copy"), tr("Failed to import copy of Savegame file because the copy failed"));
            return false;
        }
    }
    else
    {
        QMessageBox::warning(this, tr("Import copy"), tr("Failed to import copy of Savegame file because no free Savegame slot left"));
        return false;
    }
}

void ProfileInterface::profileWidgetSelected()
{
    if (selectedWidgts == 0)
    {
        foreach(ProfileWidget *widget, widgets.keys())
        {
            widget->setSelectionMode(true);
        }
    }
    selectedWidgts++;
}

void ProfileInterface::profileWidgetDeselected()
{
    if (selectedWidgts == 1)
    {
        int scrollBarValue = ui->saProfile->verticalScrollBar()->value();
        foreach(ProfileWidget *widget, widgets.keys())
        {
            widget->setSelectionMode(false);
        }
        ui->saProfile->verticalScrollBar()->setValue(scrollBarValue);
    }
    selectedWidgts--;
}

void ProfileInterface::selectAllWidgets()
{
    foreach(ProfileWidget *widget, widgets.keys())
    {
        widget->setSelected(true);
    }
}

void ProfileInterface::deselectAllWidgets()
{
    foreach(ProfileWidget *widget, widgets.keys())
    {
        widget->setSelected(false);
    }
}

void ProfileInterface::exportSelected()
{
    int exportCount = 0;
    int exportPictures = 0;
    int exportSavegames = 0;
    bool pictureCopyEnabled = false;
    bool pictureExportEnabled = false;

    QString exportDirectory = QFileDialog::getExistingDirectory(this, tr("Export selected"), profileFolder);
    if (exportDirectory != "")
    {
        foreach (ProfileWidget *widget, widgets.keys())
        {
            if (widget->isSelected())
            {
                if (widget->getWidgetType() == "SnapmaticWidget")
                {
                    exportPictures++;
                }
                else if (widget->getWidgetType() == "SavegameWidgets")
                {
                    exportSavegames++;
                }
            }
        }

        if (exportPictures != 0)
        {
            QInputDialog inputDialog;
            QStringList inputDialogItems;
            inputDialogItems << tr("Export and Copy pictures");
            inputDialogItems << tr("Export pictures");
            inputDialogItems << tr("Copy pictures");

            bool itemSelected = false;
            QString selectedItem = inputDialog.getItem(this, tr("Export selected"), tr("How should we deal with the Snapmatic pictures?"), inputDialogItems, 0, false, &itemSelected, inputDialog.windowFlags()^Qt::WindowContextHelpButtonHint);
            if (itemSelected)
            {
                if (selectedItem == tr("Export and Copy pictures"))
                {
                    pictureExportEnabled = true;
                    pictureCopyEnabled = true;
                }
                else if (selectedItem == tr("Export pictures"))
                {
                    pictureExportEnabled = true;
                }
                else if (selectedItem == tr("Copy pictures"))
                {
                    pictureCopyEnabled = true;
                }
            }
            else
            {
                pictureExportEnabled = true;
                pictureCopyEnabled = true;
            }
        }

        // Counting the exports together
        exportCount = exportCount + exportSavegames;
        if (pictureExportEnabled && pictureCopyEnabled)
        {
            int exportPictures2 = exportPictures * 2;
            exportCount = exportCount + exportPictures2;
        }
        else
        {
            exportCount = exportCount + exportPictures;
        }

        QProgressDialog pbDialog(this);
        pbDialog.setWindowFlags(pbDialog.windowFlags()^Qt::WindowContextHelpButtonHint^Qt::WindowCloseButtonHint);
        pbDialog.setWindowTitle(tr("Export selected..."));
        pbDialog.setLabelText(tr("Initializing export..."));
        pbDialog.setRange(0, exportCount);

        QList<QPushButton*> pbBtn = pbDialog.findChildren<QPushButton*>();
        pbBtn.at(0)->setDisabled(true);

        QList<QProgressBar*> pbBar = pbDialog.findChildren<QProgressBar*>();
        pbBar.at(0)->setTextVisible(false);

        ExportThread *exportThread = new ExportThread(widgets, exportDirectory, pictureCopyEnabled, pictureExportEnabled, exportCount);
        QObject::connect(exportThread, SIGNAL(exportStringUpdate(QString)), &pbDialog, SLOT(setLabelText(QString)));
        QObject::connect(exportThread, SIGNAL(exportProgressUpdate(int)), &pbDialog, SLOT(setValue(int)));
        QObject::connect(exportThread, SIGNAL(exportFinished()), &pbDialog, SLOT(close()));
        exportThread->start();

        pbDialog.exec();
        QStringList getFailedSavegames = exportThread->getFailedSavegames();
        QStringList getFailedCopyPictures = exportThread->getFailedCopyPictures();
        QStringList getFailedExportPictures = exportThread->getFailedExportPictures();

        QString errorStr;
        QStringList errorList;
        errorList << getFailedExportPictures;
        errorList << getFailedCopyPictures;
        errorList << getFailedSavegames;

        foreach (const QString &curErrorStr, errorList)
        {
            errorStr.append(", " + curErrorStr);
        }
        if (errorStr != "")
        {
            errorStr.remove(0, 2);
            QMessageBox::warning(this, tr("Export selected"), tr("Export failed with...\n\n%1").arg(errorStr));
        }

        if (exportThread->isFinished())
        {
            exportThread->deleteLater();
            delete exportThread;
        }
        else
        {
            QEventLoop threadFinishLoop;
            QObject::connect(exportThread, SIGNAL(finished()), &threadFinishLoop, SLOT(quit()));
            threadFinishLoop.exec();
            exportThread->deleteLater();
            delete exportThread;
        }
    }
}

void ProfileInterface::deleteSelected()
{
    if (QMessageBox::Yes == QMessageBox::warning(this, tr("Delete selected"), tr("You really want delete the selected content?"), QMessageBox::Yes | QMessageBox::No, QMessageBox::No))
    {
        foreach (ProfileWidget *widget, widgets.keys())
        {
            if (widget->isSelected())
            {
                if (widget->getWidgetType() == "SnapmaticWidget")
                {
                    SnapmaticWidget *picWidget = (SnapmaticWidget*)widget;
                    SnapmaticPicture *picture = picWidget->getPicture();
                    QString fileName = picture->getPictureFileName();
                    if (!QFile::exists(fileName) || QFile::remove(fileName))
                    {
                        pictureDeleted_f(picWidget);
                    }
                }
                else if (widget->getWidgetType() == "SavegameWidget")
                {
                    SavegameWidget *sgdWidget = (SavegameWidget*)widget;
                    SavegameData *savegame = sgdWidget->getSavegame();
                    QString fileName = savegame->getSavegameFileName();
                    if (!QFile::exists(fileName) || QFile::remove(fileName))
                    {
                        savegameDeleted_f(sgdWidget);
                    }
                }
            }
        }
        if (selectedWidgts != 0)
        {
            QMessageBox::warning(this, tr("Delete selected"), tr("Failed at delete all selected content"));
        }
    }
}