#include "invitedialog.h"
#include "qrcode_utils.h"
#include <QVBoxLayout>
#include <QHBoxLayout>
#include <QLineEdit>
#include <QPushButton>
#include <QLabel>
#include <QClipboard>
#include <QApplication>
#include <QTimer>

InviteDialog::InviteDialog(const QString& link, QWidget* parent)
    : QDialog(parent), m_link(link)
{
    setWindowTitle("Пригласительная ссылка");
    setMinimumWidth(420);
    setModal(true);

    auto *layout = new QVBoxLayout(this);
    layout->setSpacing(12);

    auto *linkEdit = new QLineEdit(m_link, this);
    linkEdit->setReadOnly(true);
    linkEdit->setStyleSheet("padding: 6px; font-family: monospace;");
    layout->addWidget(linkEdit);

    auto *btnLayout = new QHBoxLayout();
    auto *copyBtn = new QPushButton("Скопировать", this);
    connect(copyBtn, &QPushButton::clicked, this, [this, linkEdit]() {
        QClipboard* cb = QApplication::clipboard();
        cb->clear(QClipboard::Clipboard);
        cb->setText(m_link, QClipboard::Clipboard);
        if (cb->supportsSelection()) {
            cb->clear(QClipboard::Selection);
            cb->setText(m_link, QClipboard::Selection);
        }
        linkEdit->setFocus();
    });
    btnLayout->addWidget(copyBtn);
    btnLayout->addStretch();
    layout->addLayout(btnLayout);

    auto *qrLabel = new QLabel(this);
    QImage qrImage = generateQRCode(m_link);
    if (!qrImage.isNull())
        qrLabel->setPixmap(QPixmap::fromImage(qrImage).scaled(
            180, 180, Qt::KeepAspectRatio, Qt::SmoothTransformation));
    qrLabel->setAlignment(Qt::AlignCenter);
    layout->addWidget(qrLabel, 0, Qt::AlignCenter);

    auto *closeBtn = new QPushButton("OK", this);
    connect(closeBtn, &QPushButton::clicked, this, &QDialog::accept);
    layout->addWidget(closeBtn, 0, Qt::AlignRight);

    QTimer::singleShot(0, this, [this]() {
        QClipboard* cb = QApplication::clipboard();
        cb->clear(QClipboard::Clipboard);
        cb->setText(m_link, QClipboard::Clipboard);
        if (cb->supportsSelection()) {
            cb->clear(QClipboard::Selection);
            cb->setText(m_link, QClipboard::Selection);
        }
    });
}