// File: host/src/MainWindow.cpp
#include "MainWindow.h"
#include <QScroller>
#include <QGesture>

MainWindow::MainWindow(QWidget *parent) : QMainWindow(parent) {
    settings = new QSettings("EISConfigurator", "Settings", this);
    loadSettings();

    serial = new QSerialPort(this);
    connect(serial, &QSerialPort::readyRead, this, &MainWindow::handleSerialData);
    connect(serial, &QSerialPort::errorOccurred, this, &MainWindow::onPortError);

    blinkTimer = new QTimer(this);
    blinkTimer->setInterval(500);
    connect(blinkTimer, &QTimer::timeout, this, &MainWindow::onBlinkTimer);

    setupUi(); // Defined in MainWindow_UI.cpp
    
    // Auto-refresh ports after startup
    QTimer::singleShot(1000, this, &MainWindow::refreshPorts);
    
    grabGesture(Qt::SwipeGesture);
}

MainWindow::~MainWindow() {
    if (serial->isOpen()) {
        serial->close();
    }
}

void MainWindow::loadSettings() {
    cellConstant = settings->value("cellConstant", 1.0).toDouble();
}

void MainWindow::saveSettings() {
    settings->setValue("cellConstant", cellConstant);
}

bool MainWindow::event(QEvent *event) {
    if (event->type() == QEvent::Gesture) {
        QGestureEvent *ge = static_cast<QGestureEvent*>(event);
        if (QGesture *swipe = ge->gesture(Qt::SwipeGesture)) {
            handleSwipe(static_cast<QSwipeGesture*>(swipe));
            return true;
        }
    }
    return QMainWindow::event(event);
}

void MainWindow::handleSwipe(QSwipeGesture *gesture) {
    if (gesture->state() == Qt::GestureFinished) {
        if (gesture->horizontalDirection() == QSwipeGesture::Left) {
             if (mainTabWidget->currentIndex() < mainTabWidget->count() - 1)
                 mainTabWidget->setCurrentIndex(mainTabWidget->currentIndex() + 1);
        } else if (gesture->horizontalDirection() == QSwipeGesture::Right) {
             if (mainTabWidget->currentIndex() > 0)
                 mainTabWidget->setCurrentIndex(mainTabWidget->currentIndex() - 1);
        }
    }
}