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#include "qkmsintegration.h"
#include "qkmsdevice.h"
#include "qkmsscreen.h"
#include "qkmswindow.h"
#include "qkmsbackingstore.h"
#include "qkmscontext.h"
#include "qkmsnativeinterface.h"
#include "qkmsvthandler.h"

#if !defined(QT_NO_EVDEV)
#include <QtPlatformSupport/private/qevdevmousemanager_p.h>
#include <QtPlatformSupport/private/qevdevkeyboardmanager_p.h>
#include <QtPlatformSupport/private/qevdevtouch_p.h>
#endif

#include <QtPlatformSupport/private/qgenericunixeventdispatcher_p.h>
#include <QtPlatformSupport/private/qgenericunixfontdatabase_p.h>
#include <QtGui/private/qguiapplication_p.h>
#include <QtGui/QOpenGLContext>
#include <QtGui/QScreen>

QT_BEGIN_NAMESPACE

QKmsIntegration::QKmsIntegration()
    : QPlatformIntegration(),
      m_fontDatabase(new QGenericUnixFontDatabase()),
      m_nativeInterface(new QKmsNativeInterface)
{
    setenv("EGL_PLATFORM", "drm",1);
    m_vtHandler = new QKmsVTHandler;

    m_deviceDiscovery = QDeviceDiscovery::create(QDeviceDiscovery::Device_DRM | QDeviceDiscovery::Device_DRM_PrimaryGPU, 0);
    if (m_deviceDiscovery) {
        QStringList devices = m_deviceDiscovery->scanConnectedDevices();
        foreach (QString device, devices)
            addDevice(device);

        connect(m_deviceDiscovery, SIGNAL(deviceDetected(QString)), this, SLOT(addDevice(QString)));
        connect(m_deviceDiscovery, SIGNAL(deviceRemoved(QString)), this, SLOT(removeDevice(QString)));
    }

#if !defined(QT_NO_EVDEV)
    new QEvdevKeyboardManager(QLatin1String("EvdevKeyboard"), QString() /* spec */, this);
    new QEvdevMouseManager(QLatin1String("EvdevMouse"), QString() /* spec */, this);
    new QEvdevTouchScreenHandlerThread(QString() /* spec */, this);
#endif
}

QKmsIntegration::~QKmsIntegration()
{
    delete m_deviceDiscovery;
    foreach (QKmsDevice *device, m_devices) {
        delete device;
    }
    foreach (QPlatformScreen *screen, m_screens) {
        delete screen;
    }
    delete m_fontDatabase;
    delete m_vtHandler;
}

void QKmsIntegration::addDevice(const QString &deviceNode)
{
    m_devices.append(new QKmsDevice(deviceNode, this));
}

void QKmsIntegration::removeDevice(const QString &deviceNode)
{
    // TODO: support hot-plugging some day?
    Q_UNUSED(deviceNode);
}

bool QKmsIntegration::hasCapability(QPlatformIntegration::Capability cap) const
{
    switch (cap) {
    case ThreadedPixmaps: return true;
    case OpenGL: return true;
    case ThreadedOpenGL: return false;
    default: return QPlatformIntegration::hasCapability(cap);
    }
}

QPlatformOpenGLContext *QKmsIntegration::createPlatformOpenGLContext(QOpenGLContext *context) const
{
    QKmsScreen *screen = static_cast<QKmsScreen *>(context->screen()->handle());
    return new QKmsContext(context, screen->device());
}

QPlatformWindow *QKmsIntegration::createPlatformWindow(QWindow *window) const
{
    QKmsWindow *w = new QKmsWindow(window);
    w->requestActivateWindow();
    return w;
}

QPlatformBackingStore *QKmsIntegration::createPlatformBackingStore(QWindow *window) const
{
    return new QKmsBackingStore(window);
}

QPlatformFontDatabase *QKmsIntegration::fontDatabase() const
{
    return m_fontDatabase;
}

void QKmsIntegration::addScreen(QKmsScreen *screen)
{
    m_screens.append(screen);
    screenAdded(screen);
}

QAbstractEventDispatcher *QKmsIntegration::createEventDispatcher() const
{
    return createUnixEventDispatcher();
}

QPlatformNativeInterface *QKmsIntegration::nativeInterface() const
{
    return m_nativeInterface;
}

QT_END_NAMESPACE