#include "dp4loginwidget.h"
#include <QComboBox>
#include <QHBoxLayout>
#include <QVBoxLayout>
#include <QLineEdit>
#include <QLabel>
#include <QPushButton>
#include <QPixmap>
#include <QAction>
#include <QMessageBox>
#include <QPushButton>
#include <QEvent>
#include <QDebug>

Dp4LoginWidget::Dp4LoginWidget(QWidget *parent)
    : QWidget(parent)
    , m_environment(nullptr)
    , m_username(nullptr)
    , m_password(nullptr)
{
    initUi();
}

Dp4LoginWidget::~Dp4LoginWidget()
{
}

void Dp4LoginWidget::Logon()
{
    QMessageBox(QMessageBox::Information, tr("Logon"), tr("Environment:") + m_environment->currentText() + "\n" + tr("Username:") + m_username->text() + "\nPassword:" + m_password->text()).exec();
}

void Dp4LoginWidget::ResetPassword()
{
    QMessageBox(QMessageBox::Information,tr("Forget Password"),tr("Forget Password")).exec();
    //    QMessageBox(QMessageBox::Information,QIcon::themeName(),QIcon::themeSearchPaths().join("\n")).exec();
}

void Dp4LoginWidget::initUi()
{
    m_topWidget = new QWidget(this);
    m_layout = new QVBoxLayout(m_topWidget);
    m_layout->setContentsMargins(100, 0, 100, 0);//left,top,right,bottom
    QPixmap pixmap(USER_ICON);
    m_labelImage = new QLabel(m_topWidget);
    m_labelImage->setPixmap(pixmap);
    m_labelImage->setMinimumHeight(pixmap.height());
    m_layout->addWidget(m_labelImage, 0, Qt::AlignHCenter);
    m_labelOtherUser = new QLabel(tr("Other User"), this);
    m_layout->addWidget(m_labelOtherUser, 0, Qt::AlignCenter);
    m_username = new QLineEdit(m_topWidget);
    m_username->setPlaceholderText(tr("Username"));
    m_username->setStyleSheet("background-color:royalblue;");
    m_layout->addWidget(m_username);
    m_password = new QLineEdit(m_topWidget);
    m_password->setPlaceholderText(tr("Password"));
    m_password->setEchoMode(QLineEdit::PasswordEchoOnEdit);
    m_password->setStyleSheet("background-color:royalblue;");
    connect(m_password->addAction(QIcon::fromTheme("media-playback-start"), QLineEdit::TrailingPosition), &QAction::triggered, this, [=](){this->Logon();});
    m_layout->addWidget(m_password);
    m_environment = new QComboBox(m_topWidget);
    m_environment->addItem(tr("Production"));
    m_environment->addItem(tr("Development"));
    m_environment->setStyleSheet("background-color:royalblue;");
    m_layout->addWidget(m_environment);
    m_pbForgetPassword = new QPushButton(tr("Forget Password"), m_topWidget);
    m_pbForgetPassword->setFlat(true);
    connect(m_pbForgetPassword, &QPushButton::released, this, [this] { this->ResetPassword(); });
    m_layout->addWidget(m_pbForgetPassword);
    QString warningText = QString(tr("When you click the '➔' button or press 'Enter', indicates you understand and accept the following usage policy.")) + "\n\n"
            + QString(tr("'Unauthorized use of this Computer Terminal is a Criminal Offence under the Laws of Hong Kong.'"));
    m_labelText = new QLabel(m_topWidget);
    m_labelText->setWordWrap(true);
    m_labelText->setText(warningText);
    m_layout->addWidget(m_labelText);
    m_layout->addStretch();
    m_labelText->installEventFilter(this);

    QVBoxLayout *mainLayout = new QVBoxLayout(this);
    mainLayout->addWidget(m_topWidget);
}

bool Dp4LoginWidget::eventFilter(QObject *watchd, QEvent *event)
{
    if (watchd == m_labelText && event->type() == QEvent::Resize) {
        int height = m_labelImage->height() + m_labelOtherUser->height() +
                m_username->height() + m_password->height() +
                m_environment->height() + m_pbForgetPassword->height() +
                m_labelText->height() + m_layout->spacing() * 6 +
                m_layout->contentsMargins().top() + m_layout->contentsMargins().bottom();

        m_topWidget->setFixedHeight(height);
    }

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