#include "newslistwidget.h"
#include <QtConcurrent/QtConcurrent>
#include <QLabel>
#include <QStringList>
#include <QSpacerItem>
#include <widgets/newspiece.h>

NewsListWidget::NewsListWidget(QWidget *parent) : QWidget(parent)
{
    news_downloader.targetBytearray = &news_data;
    news_downloader.setUrl(QUrl("http://translate.lotros.ru/groupware/launcher_news/30/1"));

    news_layout = new QVBoxLayout(this);
    news_layout->setSpacing(10);
    news_layout->setObjectName(QStringLiteral("news_layout"));
    news_layout->setContentsMargins(2, 2, 10, 2);
    news_layout->setSizeConstraint(QLayout::SetNoConstraint);
    connect(&news_update_timer, &QTimer::timeout, &news_downloader, &Downloader::start);
    connect(&news_downloader, &Downloader::downloadFinished, this, &NewsListWidget::updateNews);
    emit news_downloader.start();
    news_update_timer.setInterval(1000 * 63); // 63 seconds;
    news_update_timer.start();

    setMouseTracking(true);
}

NewsListWidget::~NewsListWidget()
{
    news_update_timer.stop();
}

void NewsListWidget::leaveEvent(QEvent *event)
{
    emit showNoToolTip();
}

void NewsListWidget::enterEvent(QEvent *event)
{
    emit showHelpToolTip();
}

void NewsListWidget::updateNews()
{
    if (!qApp)
        return;

    if (news_data.size() == 0) {
        constructNewsPiece(0, "Не могу загрузить новости", "Загрузка новостей не удалась. Чтобы просмотреть новости, перейдите на <a href='http://translate.lotros.ru/news'>http://translate.lotros.ru/news</a>", "http://translate.lotros.ru/news", "");
        return;
    }

    QStringList news_list = QString(news_data).split(":::");
    news_data.clear();

    for (int i = 0; i < news_list.size(); i++) {
        QStringList news_piece = news_list[i].split("|");

        QString img_src = news_piece[0];
        QString news_title = news_piece[1];
        QString news_desrc = news_piece[2];
        QString news_src = news_piece[3];
        QString news_date = news_piece[4];

        constructNewsPiece(i, news_title, news_desrc, news_src, news_date);

//        QtConcurrent::run([i, this, img_src](){
//            Downloader img_dwnld;
//            QByteArray img = "";
//            img_dwnld.setUrl(QUrl(img_src));
//            img_dwnld.targetBytearray = &img;
//            img_dwnld.start();
//            img_dwnld.waitForDownloaded();
//            qDebug() << "Downloaded " << img_src;
//            QPixmap img_pixmap;
//            img_pixmap.loadFromData(img);
//            QMetaObject::invokeMethod(this, "setImgToNewsPiece", Qt::QueuedConnection, Q_ARG(int, i), Q_ARG(QPixmap, img_pixmap));
//        });
    }

    QSpacerItem* verticalSpacer = new QSpacerItem(20, 0, QSizePolicy::Minimum, QSizePolicy::Expanding);
    news_layout->addItem(verticalSpacer);
}

void NewsListWidget::constructNewsPiece(int piece_id, QString title, QString text, QString news_src, QString news_date)
{
    NewsPiece* old_piece = findChild<NewsPiece*>("news_piece_" + QString::number(piece_id));

    if (old_piece) {
        news_layout->removeWidget(old_piece);
        old_piece->deleteLater();
    }

    NewsPiece* news_piece = new NewsPiece(this);
    news_piece->setObjectName(QStringLiteral("news_piece_") + QString::number(piece_id));
//    news_piece->setIcon(QPixmap(QString::fromUtf8(":/appicon.ico")).scaled(40, 40));
    news_piece->setTitle(title, news_src);
//    news_piece->setContents(text);
    news_piece->setDate(news_date);

    news_layout->addWidget(news_piece, piece_id, 0);
}

void NewsListWidget::setImgToNewsPiece(int piece_id, QPixmap img)
{
    NewsPiece* piece = findChild<NewsPiece*>("news_piece_" + QString::number(piece_id));
    if (!piece)
        return;
//    piece->setIcon(img);
}