#include "chatwidgetview.h"
#include "word.h"
#include "wordpart.h"
#include "message.h"

#include <QScroller>
#include <QPainter>

ChatWidgetView::ChatWidgetView()
    : QWidget(),
      scrollbar(this),
      m_channel(NULL)
{
    auto scroll = QScroller::scroller(this);

    scroll->scrollTo(QPointF(0, 100));

    m_channel = Channel::getChannel("ian678");
}

void ChatWidgetView::resizeEvent(QResizeEvent *)
{
    scrollbar.resize(scrollbar.width(), height());
    scrollbar.move(width() - scrollbar.width(), 0);

    auto c = channel();

    if (c == NULL) return;

    auto messages = c->getMessagesClone();

    for (std::shared_ptr<Message>& message : messages)
    {
        message.get()->layout(width(), true);
    }
}

void ChatWidgetView::paintEvent(QPaintEvent *)
{
    QPainter painter(this);

    auto c = channel();

    if (c == NULL) return;

    auto messages = c->getMessagesClone();

    int y = 0;

    for (std::shared_ptr<Message> const& message : messages)
    {
        for (WordPart const& wordPart : message.get()->wordParts())
        {
            // image
            if (wordPart.word().isImage())
            {
                LazyLoadedImage& lli = wordPart.word().getImage();

                const QImage* image = lli.image();

                if (image != NULL)
                {
                    painter.drawImage(QRect(wordPart.x(), wordPart.y() + y, wordPart.width(), wordPart.height()), *image);
                }
            }

            // text
            else
            {
                painter.drawText(wordPart.x(), wordPart.y() + y, wordPart.getText());
            }
        }

        y += message.get()->height();
    }
}