#include "Message.h"
#include <QDebug>
#include <QSpacerItem>
#include <QTimer>
#include <QVBoxLayout>

Message::Message(QWidget* parent)
    : QWidget(parent)
{
    btnStyle = "QPushButton { \
                background: rgba(0,0,0,0.4); \
                color: rgba(255,255,255); \
                border: none; \
                border-radius: 10px; \
                min-height: 40px; \
                }";

    QVBoxLayout* layout = new QVBoxLayout();
    layout->setContentsMargins(QMargins(10, 10, 10, 10));
    layout->setSpacing(10);
    this->setLayout(layout);
    this->setFixedHeight(260);
    QFont font;
    //    font.setFamily("Ubuntu Regular");
    font.setPixelSize(16);
    this->setFont(font);

    QSpacerItem* verticalSpacer = new QSpacerItem(20, 40, QSizePolicy::Minimum, QSizePolicy::Expanding);
    layout->addSpacerItem(verticalSpacer);
}

Message::~Message()
{
}

void Message::success(QString content, int duration)
{
    showMessage(content, duration, Success);
}

void Message::info(QString content, int duration)
{
    showMessage(content, duration, Info);
}

void Message::error(QString content, int duration)
{
    showMessage(content, duration, Error);
}

void Message::warning(QString content, int duration)
{
    showMessage(content, duration, Warning);
}

void Message::showMessage(QString content, int duration, Level level)
{
    QVBoxLayout* layout = static_cast<QVBoxLayout*>(this->layout());
    if (count >= maxCount) {
        // remove first
        QPair<QPushButton*, QTimer*> pair = contentList.first();
        contentList.removeFirst();
        layout->removeWidget(pair.first);
        delete pair.first;
        delete pair.second;
        count -= 1;
    }

    // apeend new
    QPushButton* btn = generateButton(content, level);
    layout->insertWidget(count, btn);
    qDebug() << this->children();

    QTimer* timer = new QTimer();
    timer->setInterval(duration);
    timer->start();
    QPair<QPushButton*, QTimer*> pair(btn, timer);
    contentList.append(pair);
    count += 1;

    connect(timer, &QTimer::timeout, [=] {
        for (int i = 0; i < contentList.length(); i++) {
            QPair<QPushButton*, QTimer*> pair = contentList.at(i);
            if (pair.first == btn) {
                contentList.removeAt(i);
            }
            layout->removeWidget(pair.first);
            delete pair.first;
            delete pair.second;
        }
    });
}

QPushButton* Message::generateButton(QString content, Level level)
{
    QPushButton* btn = new QPushButton(this);
    btn->setText(content);
    QString iconPath;
    switch (level) {
    case Info:
        iconPath = ":/icons/info.png";
        break;
    case Success:
        iconPath = ":/icons/success.png";
        break;
    case Error:
        iconPath = ":/icons/error.png";
    case Warning:
        iconPath = ":/icons/waring.png";
        break;
    default:
        iconPath = ":/icons/info.png";
        break;
    }
    btn->setIcon(QIcon(iconPath));
    btn->setIconSize(QSize(16, 16));
    btn->setStyleSheet(btnStyle);

    QFont font = btn->font();
    QFontMetrics metrics(font);
    int width = metrics.boundingRect(content).size().width();
    btn->setFixedWidth(width);

    return btn;
}