#include "mainwindow.h"
#include "ui_mainwindow.h"
#include <QDebug>
/*
void MainWindow::onNetworkConfigurationChanged()
{
}
*/

MainWindow::MainWindow(QWidget *parent) :
    QMainWindow(parent),
    ui(new Ui::MainWindow)
{
    ui->setupUi(this);
    ui->menuBar->setVisible(false);
    qDebug() << "Using: " << this->qsettings.fileName();

    this->qsystemtrayicon = new QSystemTrayIcon(this->windowIcon(), 0);
    this->qsystemtrayicon->show();
    this->qsystemtrayicon->setContextMenu(ui->menuMenu1);
    this->qsystemtrayicon->setToolTip(this->windowTitle());
    this->connect(this->qsystemtrayicon, SIGNAL(activated(QSystemTrayIcon::ActivationReason)), this, SLOT(slotActivated(QSystemTrayIcon::ActivationReason)));

    this->updateSpaceList();
    this->updateStatus();


    this->timer = new QTimer();
    this->connect(this->timer, SIGNAL(timeout()), this, SLOT(updateStatus()));
    // update every five minutes...
    this->timer->start(60000 * 5);

    //this->pixmap = new QPixmap(120, 120);
    //this->currentIcon = new QIcon(this->pixmap);

    this->mgr = new QNetworkConfigurationManager();
    /*
    connect(this->mgr,
          SIGNAL(configurationChanged(const QNetworkConfiguration &)),
          this,
          SLOT(onNetworkConfigurationChanged()));
    */
    /*
    connect(this->mgr,
          SIGNAL(configurationChanged(const QNetworkConfiguration &)),
          this,
          SLOT(onNetworkConfigurationChanged()));
          */
    connect(this->mgr, &QNetworkConfigurationManager::configurationChanged,
            [=]
            {
                qDebug() << "configuration changed" << endl;
                if(this->mgr->isOnline())
                {
                    if(this->ui->comboBox->count() == 0)
                    {
                        this->updateSpaceList();
                        this->updateStatus();
                    }
                    else
                        this->updateStatus();
                }
            });

    connect(this->mgr, &QNetworkConfigurationManager::onlineStateChanged,
            [=] (bool b)
            {
                qDebug() << "QNetworkConfigurationManager::onlineStateChanged\n" << endl;
                if(!b)
                {
                    this->qsystemtrayicon->setIcon(QIcon::fromTheme("network-error"));
                    this->qsystemtrayicon->showMessage("Offline", "The network connection was lost :(");
                }

            });

}

MainWindow::~MainWindow()
{
    qDebug() << "unloading application";
    delete this->qsystemtrayicon;
    delete this->timer;
    delete ui;
}

void MainWindow::updateSpaceList()
{
    qDebug() << "updateSpaceList()";
    QString defaultSpace = this->qsettings.value("hackerspace").toString();
    QString defaultDirectoryURL = this->qsettings.value("directory").toString();
    if(defaultDirectoryURL == "")
    { defaultDirectoryURL = "https://raw.githubusercontent.com/SpaceApi/OpenSpaceDirectory/master/directory.json" ; }

    QUrl url(defaultDirectoryURL);
    QJsonObject json = QJsonDocument::fromJson(this->download(url)).object();

    ui->comboBox->setDisabled(true);
    QJsonObject::Iterator it;
    for(it=json.begin(); it!=json.end(); it++)
    {
        //qDebug() << it.key() << "\t" << it.value().toString();
        ui->comboBox->addItem(it.key(), it.value().toString());
        if(it.key() == defaultSpace)
            ui->comboBox->setCurrentIndex(ui->comboBox->count()-1);
    }
    ui->comboBox->setDisabled(false);

}

QJsonObject json_find(QJsonObject json, QStringList list)
{
    QJsonObject retval = json;
    foreach(const QString str, list)
        if(retval.contains(str))
            retval = retval[str].toObject();
        else
            return QJsonObject();
    return retval;
}

// lets not talk about memory leaks. yes, they are there. but it works somehow.
void MainWindow::updateStatus()
{
    //QUrl url("http://hackerspace-bielefeld.de/spacestatus/status.json");
    qDebug() << ui->comboBox->currentData().toString();
    ui->label_url_json->setText(ui->comboBox->currentData().toString());

    QUrl url(ui->comboBox->currentData().toString());
    QJsonDocument doc = QJsonDocument::fromJson(this->download(url));
    //ui->plainTextEdit->setPlainText(doc.toJson(QJsonDocument::Indented));

    //qDebug() << doc.toJson(QJsonDocument::Indented);
    QJsonObject json = doc.object();

    foreach (QLabel *label, this->findChildren<QLabel*>())
    {
        if(label->statusTip().isEmpty())
            continue;

        label->clear();
        //label->setText("");
        QStringList list = label->statusTip().split("/");
        QString name = list.takeLast();


        QJsonObject obj = json_find(json, list);
        if(!obj.isEmpty())
        {
            if(obj.value(name).isString())
            {
                QString result = obj.value(name).toString();
                if(name == "logo" || result.endsWith(".png") || result.endsWith(".jpg"))
                {
                    label->setPixmap(
                        QPixmap::fromImage(
                            QImage::fromData(
                                this->download(
                                    QUrl(result)))).scaled(120, 120, Qt::KeepAspectRatio));
                }
                else if(result.contains("http"))
                {
                    label->setText("<b>" + name + ":</b><br/><a href=\"" + result + "\">" + result + "</a> ");
                    label->setOpenExternalLinks(true);
                }
                else
                    label->setText("<b>" + name + ":</b><br/>" + result);
            }
            else
            {
                if(obj.value(name).isBool())
                    label->setText("<b>" + name + "</b>:<br/>" + (obj.value(name).toBool() ? "true" : "false"));
                else if(name == "lastchange")
                    label->setText("<b>" + name + ":</b><br/>" + QDateTime::fromTime_t(obj.value(name).toInt()).toLocalTime().toString());
            }

        }

        qDebug() << "NAME: " << name;
    }

    QString strUrl;

    strUrl = json["state"].toObject()
                 ["icon"].toObject()
                 [json["state"].toObject()["open"].toBool() ? "open" : "closed"].toString();
    if(strUrl == "")
        strUrl = json["icon"].toObject()
                     [json["state"].toObject()["open"].toBool() ? "open" : "closed"].toString();



    qDebug() << "downloading: " << strUrl;
    this->qsystemtrayicon->setIcon(QIcon(
        QPixmap::fromImage(
            QImage::fromData(
                this->download(
                    QUrl(strUrl)))).scaled(120, 120, Qt::KeepAspectRatio)));

    if(this->qsystemtrayicon->icon().isNull())
    {
        if(json["state"].toObject().contains("open"))
            if(json["state"].toObject()["open"].toBool())
                this->qsystemtrayicon->setIcon(QIcon::fromTheme("face-smile"));
            else
                this->qsystemtrayicon->setIcon(QIcon::fromTheme("face-sad"));
        else
            this->qsystemtrayicon->setIcon(QIcon::fromTheme("face-sick"));
    }
}

void MainWindow::saveSettings()
{
    this->qsettings.setValue("hackerspace", ui->comboBox->currentText());
}

QByteArray MainWindow::download(QUrl url)
{
    qDebug() << "downloading: " << url.toString();
    QNetworkAccessManager manager;
    QNetworkReply *response = manager.get(QNetworkRequest(QUrl(url)));
    QEventLoop event;
    connect(response, SIGNAL(finished()), &event, SLOT(quit()));
    connect(response, &QNetworkReply::sslErrors,
        [=](const QList<QSslError>& errors) {
        qDebug() << errors[0].errorString();
        // many of us use self-signed certificates or they have expired.
        // this should not matter here, therefore ignore...
        response->ignoreSslErrors();
    }
    );
    connect(response, static_cast<void(QNetworkReply::*)(QNetworkReply::NetworkError)>(&QNetworkReply::error),
        [=](QNetworkReply::NetworkError)
        {
            qDebug() << "NetworkError!"; // code.errorString();
            //qDebug() << ;
            qDebug() << response->errorString();

        }
    );
    event.exec();
    if (response->error() == QNetworkReply::NoError)
    {
        int statusCode = response->attribute(QNetworkRequest::HttpStatusCodeAttribute).toInt();

        qDebug() << "Status: " << statusCode;
        switch(statusCode)
        {
            case 301:
            case 302:
            case 303:
                return this->download(response->attribute(QNetworkRequest::RedirectionTargetAttribute).toUrl());
            break;
        }
    }
    return response->readAll();
}

void MainWindow::slotActivated(QSystemTrayIcon::ActivationReason reason)
{
    qDebug() << "trigger";
    if(reason == QSystemTrayIcon::Trigger)
    {
        if(this->isVisible())
            this->hide();
        else
        {
            this->setWindowState(Qt::WindowNoState);
            this->show();
            this->activateWindow();
        }

    }
    else
    {
        qDebug() << "activate(reason): " << reason;
    }
}

void MainWindow::exitApplication()
{
    qDebug() << "exit now!";
    QApplication::quit();
}

void MainWindow::on_comboBox_currentIndexChanged(const QString &arg1)
{
    qDebug() << arg1;
    if(ui->comboBox->isEnabled())
    {
        this->updateStatus();
        this->saveSettings();
    }
}