#include "frmimgshow.h"
#include "frmalbum.h"

FrmImgShow::FrmImgShow(QWidget *parent) : QWidget(parent)
{
    initForm();
    initSignalSlot();
    connect(TCHttpService::getInstance(), &TCHttpService::signal_imageDownloaded,
            this, [this](const QString& requestId, const QPixmap& pixmap){
        if (requestId == m_requestId) {
            // setLoadingState(false);
            qDebug() << "load success";
            setImage(pixmap);
        }
    });

    connect(TCHttpService::getInstance(), &TCHttpService::signal_downloadFailed,
            this, [this](const QString& requestId, const QString& error){
        if (requestId == m_requestId) {
            qDebug() << "load failed";
        }
    });
}

void FrmImgShow::loadImage(const QUrl &imageUrl)
{
    qDebug() << "loadImage";
    m_currentUrl = imageUrl;
    m_requestId = QUuid::createUuid().toString();
    TCHttpService::getInstance()->downloadImage(m_requestId, imageUrl);
}

void FrmImgShow::setImage(const QPixmap &pixmap)
{
    // int h = pixmap.height();
    // int w = pixmap.width();
    // int sh, sw;
    // if (h >= w) {
    //     sh = 140;
    //     sw = w * h / 140;
    // }
    // else {
    //     sw = 140;
    //     sh = h * w /140;
    // }
    labImg->setPixmap(pixmap.scaled(this->labImg->width(), this->labImg->height()));
}

void FrmImgShow::setLoadingState(bool loading)
{

}

void FrmImgShow::initSignalSlot()
{
    connect(btnCopy, &QPushButton::clicked, [this](){
        switch(FrmAlbum::getCopyType()) {
            case 0:
            {
                QClipboard* clipboard = QApplication::clipboard();
                QString mdStr = QString("![](%1)").arg(m_currentUrl.toString());
                clipboard->setText(mdStr);
                break;
            }
            case 1:
            {
                QClipboard* clipboard = QApplication::clipboard();
                QString urlStr = m_currentUrl.toString();
                clipboard->setText(urlStr);
                break;
            }
            case 2:
            {
                QClipboard* clipboard = QApplication::clipboard();
                QString htmlStr = QString("<img src=\"%1\"/>").arg(m_currentUrl.toString());
                clipboard->setText(htmlStr);
                break;
            }
            case 3:
            {
                QClipboard* clipboard = QApplication::clipboard();
                QString ubbStr = QString("[IMG]%1[/IMG]").arg(m_currentUrl.toString());
                clipboard->setText(ubbStr);
                break;
            }
        }
    });

    connect(ckbSelect, &QCheckBox::checkStateChanged, [this](Qt::CheckState state){
        if (state == Qt::Unchecked) {
            emit signal_imageUnselected(m_currentUrl.toString());
        }

        if (state == Qt::Checked) {
            emit signal_imageSelected(m_currentUrl.toString());
        }
    });
}


QSize FrmImgShow::sizeHint()
{
    return QSize(300, 300);
}

bool FrmImgShow::eventFilter(QObject *watched, QEvent *event)
{
    if (watched == btnCopy) {
        if (event->type() == QEvent::Enter) {
            btnCopy->setIcon(QIcon(QPixmap(":/qrc/image/copy_blue.png")));
            return true;
        }
        else if (event->type() == QEvent::Leave) {
            btnCopy->setIcon(QIcon(QPixmap(":/qrc/image/copy_white.png")));
            return true;
        }
        else {
            return false;
        }
    }

    if (watched == btnDelete) {
        if (event->type() == QEvent::Enter) {
            btnDelete->setIcon(QIcon(QPixmap(":/qrc/image/delete_red.png")));
            return true;
        }
        else if (event->type() == QEvent::Leave) {
            btnDelete->setIcon(QIcon(QPixmap(":/qrc/image/delete_white.png")));
            return true;
        }
        else {
            return false;
        }
    }

    return QWidget::eventFilter(watched, event);
}

void FrmImgShow::onFinished(QNetworkReply *reply)
{
    if (reply->error() == QNetworkReply::NoError) {
        QByteArray imageData = reply->readAll();
        QPixmap pix;
        pix.loadFromData(imageData);
        this->labImg->setPixmap(pix);
    }
}

void FrmImgShow::initForm()
{
    this->setWindowFlag(Qt::FramelessWindowHint);
    this->setWindowFlags(this->windowFlags() | Qt::WindowSystemMenuHint | Qt::WindowMinMaxButtonsHint);
    setAttribute(Qt::WA_TranslucentBackground);

    vLayout = new QVBoxLayout(this);
    setLayout(vLayout);
    labImg = new QLabel();
    btnCopy = new QPushButton();
    btnCopy->setMinimumSize(22, 22);
    btnCopy->setFlat(true);
    btnCopy->setIcon(QIcon(":/qrc/image/copy_white.png"));
    btnCopy->setCursor(Qt::PointingHandCursor);

    btnCopy->installEventFilter(this);

    btnDelete = new QPushButton();
    btnDelete->setMinimumSize(22, 22);
    btnDelete->setFlat(true);
    btnDelete->setIcon(QIcon(":/qrc/image/delete_white.png"));
    btnDelete->installEventFilter(this);
    btnDelete->setCursor(Qt::PointingHandCursor);

    horizenSpacer = new QSpacerItem(40, 20, QSizePolicy::Expanding, QSizePolicy::Minimum);
    hLayout = new QHBoxLayout();

    ckbSelect = new QCheckBox();
    ckbSelect->setText("");
    ckbSelect->setMinimumSize(20, 20);
    ckbSelect->setCursor(Qt::PointingHandCursor);
    // ckbSelect->setStyleSheet("border:1px solid white;border-radius:5px");
    // ckbSelect->setStyleSheet("border-style:none;background-color:green;spacing:0px;");

    hLayout->addWidget(btnCopy);
    hLayout->addWidget(btnDelete);
    hLayout->setContentsMargins(0, 0, 0, 0);
    hLayout->addSpacerItem(horizenSpacer);
    hLayout->addWidget(ckbSelect);
    hLayout->setSpacing(0);

    vLayout->addWidget(labImg);
    vLayout->addLayout(hLayout);
    vLayout->setContentsMargins(0, 0, 0, 0);




    // btnCopy->setIcon(QIcon(QPixmap(":/qrc/image/copy_white.png")));
    // btnDelete->setIcon(QIcon(QPixmap(":/qrc/image/delete_white.png")));
    // btnCopy->setFixedSize(32, 32);
    // btnCopy->setCursor(Qt::PointingHandCursor);

    setStyleSheet("background-color: #FF0000");

    setFixedSize(134, 160);


    this->labImg->setMinimumSize(130, 130);
}

void FrmImgShow::initWidget()
{
    btnCopy->installEventFilter(this);
    btnDelete->installEventFilter(this);
}