#!/usr/bin/env python
import sys
import argparse
from lasp.lasp_rtapsdialog import RealTimeAPSDialog
from lasp.lasp_avstream import AvStream
from lasp.device.lasp_daqconfig import default_soundcard, roga_plugndaq, umik
from lasp.lasp_gui_tools import Branding, warningdialog
from PySide import QtGui


def main():

    parser = argparse.ArgumentParser(
        description='Run real time power spectra monitor')
    device_help = 'Device to record from'
    parser.add_argument('-d', '--device', help=device_help, type=str,
                        choices=['roga', 'umik', 'default'], default='roga')

    args = parser.parse_args()
    device_str = args.device
    if 'roga' == device_str:
        device = roga_plugndaq
    elif 'default' == device_str:
        device = default_soundcard
    elif 'umik' == device_str:
        device = umik

    app = QtGui.QApplication(sys.argv)  # A new instance of QApplication
    app.setFont(Branding.font())

    # stream = AvStream(default_soundcard)
    stream = AvStream(device)
    mw = RealTimeAPSDialog(None, stream)

    # Install exception hook to catch exceptions
    def excepthook(cls, exception, traceback):
        """
        This exception hook is installed as the global exception hook. Shows a
        simple QMessageBox in case of an exception that is not caught.
        """
        if __debug__:
            import traceback as tb
            tbtxt = ''.join(tb.format_tb(sys.last_traceback))
            warningdialog(mw, str(exception), tbtxt)
        else:
            warningdialog(mw, str(exception))

    # Set custom exception hook that catches all exceptions
    sys.excepthook = excepthook
    stream.start()
    mw.show()  # Show the window
    app.exec_()  # and start the event loop
    stream.stop()


if __name__ == '__main__':
    main()                    # run the main function