try:
    from PyQt5.QtWidgets import QMainWindow, QWidget, QVBoxLayout, QPushButton, QLabel, QProgressBar
    from PyQt5.QtCore import QTimer, pyqtSignal, QThread
    import json
    
    class VRApplicationThread(QThread):
        position_updated = pyqtSignal(tuple)
        orientation_updated = pyqtSignal(tuple)
        interaction_triggered = pyqtSignal(str)
        
        def __init__(self):
            super().__init__()
            self.running = True
            self.vr_device = None
        
        def run(self):
            while self.running:
                try:
                    if self.vr_device:
                        position = self.vr_device.get_head_position()
                        orientation = self.vr_device.get_head_orientation()
                        
                        self.position_updated.emit(tuple(position))
                        self. orientation_updated.emit(tuple(orientation))
                        
                        self.msleep(16)
                except Exception as e:
                    print(f"VR Thread error: {e}")
        
        def stop(self):
            self.running = False
    
    class VRApplication(QMainWindow):
        
        def __init__(self):
            super().__init__()
            self.vr_thread = VRApplicationThread()
            self.vr_thread.position_updated.connect(self.on_vr_position_update)
            self.vr_thread.orientation_updated.connect(self.on_vr_orientation_update)
            self.initUI()
        
        def initUI(self):
            self.setWindowTitle('4DCANAS VR/AR Experience')
            self.setGeometry(0, 0, 1920, 1080)
            
            central = QWidget()
            layout = QVBoxLayout()
            
            status = QLabel('VR Device:  Disconnected')
            layout.addWidget(status)
            self.status_label = status
            
            btn_start_vr = QPushButton('🥽 Start VR Experience')
            btn_start_vr.clicked.connect(self. start_vr)
            layout.addWidget(btn_start_vr)
            
            btn_start_ar = QPushButton('📱 Start AR Experience')
            btn_start_ar.clicked. connect(self.start_ar)
            layout.addWidget(btn_start_ar)
            
            progress = QProgressBar()
            layout.addWidget(progress)
            self.progress_bar = progress
            
            central.setLayout(layout)
            self.setCentralWidget(central)
        
        def start_vr(self):
            self.status_label.setText('VR Device: Connected')
            self.vr_thread.start()
        
        def start_ar(self):
            self.status_label.setText('AR Experience: Active')
        
        def on_vr_position_update(self, position):
            x, y, z = position[: 3]
            self.status_label.setText(f'Position: ({x:.2f}, {y:.2f}, {z:. 2f})')
        
        def on_vr_orientation_update(self, orientation):
            pass
        
        def closeEvent(self, event):
            self.vr_thread.stop()
            self.vr_thread.wait()
            event.accept()
    
    def launch_vr_application():
        from PyQt5.QtWidgets import QApplication
        import sys
        
        app = QApplication(sys.argv)
        window = VRApplication()
        window.show()
        sys.exit(app.exec_())

except ImportError:
    pass