#!/usr/bin/env python3
# -*- coding: utf-8 -*-

#
# SPDX-License-Identifier: GPL-3.0
#
# GNU Radio Python Flow Graph
# Title: Noise Source
# GNU Radio version: 3.10.7.0

from packaging.version import Version as StrictVersion
from PyQt5 import Qt
from gnuradio import qtgui
from gnuradio import analog
from gnuradio import gr
from gnuradio.filter import firdes
from gnuradio.fft import window
import sys
import signal
from PyQt5 import Qt
from argparse import ArgumentParser
from gnuradio.eng_arg import eng_float, intx
from gnuradio import eng_notation
from gnuradio import uhd
import time
from gnuradio.qtgui import Range, RangeWidget
from PyQt5 import QtCore



class noise_source(gr.top_block, Qt.QWidget):

    def __init__(self):
        gr.top_block.__init__(self, "Noise Source", catch_exceptions=True)
        Qt.QWidget.__init__(self)
        self.setWindowTitle("Noise Source")
        qtgui.util.check_set_qss()
        try:
            self.setWindowIcon(Qt.QIcon.fromTheme('gnuradio-grc'))
        except BaseException as exc:
            print(f"Qt GUI: Could not set Icon: {str(exc)}", file=sys.stderr)
        self.top_scroll_layout = Qt.QVBoxLayout()
        self.setLayout(self.top_scroll_layout)
        self.top_scroll = Qt.QScrollArea()
        self.top_scroll.setFrameStyle(Qt.QFrame.NoFrame)
        self.top_scroll_layout.addWidget(self.top_scroll)
        self.top_scroll.setWidgetResizable(True)
        self.top_widget = Qt.QWidget()
        self.top_scroll.setWidget(self.top_widget)
        self.top_layout = Qt.QVBoxLayout(self.top_widget)
        self.top_grid_layout = Qt.QGridLayout()
        self.top_layout.addLayout(self.top_grid_layout)

        self.settings = Qt.QSettings("GNU Radio", "noise_source")

        try:
            if StrictVersion(Qt.qVersion()) < StrictVersion("5.0.0"):
                self.restoreGeometry(self.settings.value("geometry").toByteArray())
            else:
                self.restoreGeometry(self.settings.value("geometry"))
        except BaseException as exc:
            print(f"Qt GUI: Could not restore geometry: {str(exc)}", file=sys.stderr)

        ##################################################
        # Variables
        ##################################################
        self.sample_rate = sample_rate = 10e6
        self.gain = gain = 60
        self.frequency = frequency = 2400e6

        ##################################################
        # Blocks
        ##################################################

        self._gain_range = Range(0, 100, 1, 60, 200)
        self._gain_win = RangeWidget(self._gain_range, self.set_gain, "'gain'", "counter_slider", float, QtCore.Qt.Horizontal)
        self.top_layout.addWidget(self._gain_win)
        self._frequency_range = Range(50e6, 6000e6, 1e6, 2400e6, 200)
        self._frequency_win = RangeWidget(self._frequency_range, self.set_frequency, "'frequency'", "counter_slider", float, QtCore.Qt.Horizontal)
        self.top_layout.addWidget(self._frequency_win)
        self.uhd_usrp_sink_0 = uhd.usrp_sink(
            ",".join(("", "")),
            uhd.stream_args(
                cpu_format="fc32",
                args='',
                channels=list(range(0,1)),
            ),
            '',
        )
        self.uhd_usrp_sink_0.set_subdev_spec("A:A", 0)
        self.uhd_usrp_sink_0.set_samp_rate(sample_rate)
        self.uhd_usrp_sink_0.set_time_unknown_pps(uhd.time_spec(0))

        self.uhd_usrp_sink_0.set_center_freq(frequency, 0)
        self.uhd_usrp_sink_0.set_antenna('TX/RX', 0)
        self.uhd_usrp_sink_0.set_gain(gain, 0)
        self.analog_noise_source_x_0 = analog.noise_source_c(analog.GR_GAUSSIAN, 1, 0)


        ##################################################
        # Connections
        ##################################################
        self.connect((self.analog_noise_source_x_0, 0), (self.uhd_usrp_sink_0, 0))


    def closeEvent(self, event):
        self.settings = Qt.QSettings("GNU Radio", "noise_source")
        self.settings.setValue("geometry", self.saveGeometry())
        self.stop()
        self.wait()

        event.accept()

    def get_sample_rate(self):
        return self.sample_rate

    def set_sample_rate(self, sample_rate):
        self.sample_rate = sample_rate
        self.uhd_usrp_sink_0.set_samp_rate(self.sample_rate)

    def get_gain(self):
        return self.gain

    def set_gain(self, gain):
        self.gain = gain
        self.uhd_usrp_sink_0.set_gain(self.gain, 0)

    def get_frequency(self):
        return self.frequency

    def set_frequency(self, frequency):
        self.frequency = frequency
        self.uhd_usrp_sink_0.set_center_freq(self.frequency, 0)




def main(top_block_cls=noise_source, options=None):

    if StrictVersion("4.5.0") <= StrictVersion(Qt.qVersion()) < StrictVersion("5.0.0"):
        style = gr.prefs().get_string('qtgui', 'style', 'raster')
        Qt.QApplication.setGraphicsSystem(style)
    qapp = Qt.QApplication(sys.argv)

    tb = top_block_cls()

    tb.start()

    tb.show()

    def sig_handler(sig=None, frame=None):
        tb.stop()
        tb.wait()

        Qt.QApplication.quit()

    signal.signal(signal.SIGINT, sig_handler)
    signal.signal(signal.SIGTERM, sig_handler)

    timer = Qt.QTimer()
    timer.start(500)
    timer.timeout.connect(lambda: None)

    qapp.exec_()

if __name__ == '__main__':
    main()
