#include <QGuiApplication>
#include <QQmlApplicationEngine>
#include <QQmlContext>
#include <QQuickStyle>
#include <QIcon>
#include <QPixmap>
#include <QPainter>
#include <QFont>
#include <QFontDatabase>

#include "olliedbusclient.h"

static QIcon makeBrainIcon()
{
    // Render FA6 brain glyph (U+F5DC) from the installed font
    QFont fa("Font Awesome 6 Free Solid");
    if (!QFontDatabase::hasFamily("Font Awesome 6 Free Solid")) {
        fa = QFont("Font Awesome 6 Free");
        fa.setWeight(QFont::Black);
    }

    QIcon icon;
    for (int size : {16, 22, 32, 48, 64, 128}) {
        QPixmap pix(size, size);
        pix.fill(Qt::transparent);
        QPainter p(&pix);
        fa.setPixelSize(size - 2);
        p.setFont(fa);
        p.setPen(QColor(200, 200, 200));
        p.drawText(pix.rect(), Qt::AlignCenter, QString(QChar(0xf5dc)));
        p.end();
        icon.addPixmap(pix);
    }
    return icon;
}

int main(int argc, char *argv[])
{
    QGuiApplication app(argc, argv);
    app.setApplicationName("ollie");
    app.setOrganizationName("ollie");
    app.setWindowIcon(makeBrainIcon());

#if QT_VERSION >= QT_VERSION_CHECK(6, 0, 0)
    QQuickStyle::setStyle("org.kde.desktop");
#endif

    QQmlApplicationEngine engine;

    // Register OllieDBusClient as a singleton
    auto *dbus = new OllieDBusClient(&app);
    engine.rootContext()->setContextProperty("dbus", dbus);

#if QT_VERSION >= QT_VERSION_CHECK(6, 0, 0)
    const QUrl url(QStringLiteral("qrc:/gui/main.qml"));
#else
    const QUrl url(QStringLiteral("qrc:/main.qml"));
#endif

    QObject::connect(&engine, &QQmlApplicationEngine::objectCreated,
        &app, [url](QObject *obj, const QUrl &objUrl) {
            if (!obj && url == objUrl)
                QCoreApplication::exit(-1);
        }, Qt::QueuedConnection);

    engine.load(url);
    return app.exec();
}