#include "channelwidget.h"
#include <QDebug>
#include <QMessageBox>

ChannelWidget::ChannelWidget(uint16_t deviceSerial, uint16_t channelNumber, struct eismultiplexer* multiplexer,
                             QWidget *parent)
    : QWidget(parent), deviceSerial(deviceSerial), channelNumber(channelNumber), multiplexer(multiplexer)
{
    // Create layout
    QHBoxLayout* layout = new QHBoxLayout(this);

    // Create label with device serial and channel number
    label = new QLabel(QString("Device %1, Channel %2").arg(deviceSerial).arg(channelNumber), this);
    layout->addWidget(label);

    // Create checkbox
    checkbox = new QCheckBox(this);
    layout->addWidget(checkbox);

    // Connect checkbox signal
    connect(checkbox, &QCheckBox::toggled, this, &ChannelWidget::onChannelToggled);

    // Set layout
    setLayout(layout);
}

ChannelWidget::~ChannelWidget()
{
    // Nothing to clean up
}

uint16_t ChannelWidget::getDeviceSerial() const
{
    return deviceSerial;
}

uint16_t ChannelWidget::getChannelNumber() const
{
    return channelNumber;
}

bool ChannelWidget::isChecked() const
{
    return checkbox->isChecked();
}

void ChannelWidget::onChannelToggled(bool checked)
{
    if (checked) {
        // Emit signal before actually turning on the channel
        emit channelAboutToBeTurnedOn(deviceSerial, channelNumber);
    }

    channel_t channelFlag = static_cast<channel_t>(1 << channelNumber);
    if (checked) {
        if (eismultiplexer_connect_channel(multiplexer.get(), channelFlag) < 0) {
            QMessageBox::warning(this, tr("Connection Failed"),
                                 tr("Failed to connect channel %1 on device %2").arg(channelNumber).arg(deviceSerial));
            qWarning() << "Failed to connect channel" << channelNumber << "on device" << deviceSerial;
            checkbox->blockSignals(true);
            checkbox->setChecked(false);
            setEnabled(false); // Gray out the widget
        }
    } else {
        if (eismultiplexer_disconnect_channel(multiplexer.get(), channelFlag) < 0) {
            QMessageBox::warning(this, tr("Disconnection Failed"),
                                 tr("Failed to disconnect channel %1 on device %2").arg(channelNumber).arg(deviceSerial));
            qWarning() << "Failed to disconnect channel" << channelNumber << "on device" << deviceSerial;
            checkbox->blockSignals(true);
            checkbox->setChecked(true);
            setEnabled(false); // Gray out the widget
        }
    }
}