import SoapySDR
import numpy as np
from scipy.signal import blackmanharris

from stabilizer import InductionHeater, Stabilizer


def main():
    freq_sample = 5e6
    freq_base = 1086e6

    induction = InductionHeater("/dev/ttyUSB0", 430e3, 445e3)
    induction.start()
    try:
        stabilizer = Stabilizer(freq_sample, 0.4, 1088.3e6 - freq_base, 200e-6, induction)

        sdr = SoapySDR.Device()
        sdr.setSampleRate(SoapySDR.SOAPY_SDR_RX, 0, freq_sample)
        sdr.setFrequency(SoapySDR.SOAPY_SDR_RX, 0, base_freq)

        samples = np.array([0]*4096, np.complex64)
        rx_stream = sdr.setupStream(SoapySDR.SOAPY_SDR_RX, SoapySDR.SOAPY_SDR_CF32)
        try:
            sdr.activateStream(rx_stream)
            try:
                # We can't update faster than the MHS5200A serial interface
                stabilizer_throttle = 0
                while True:
                    sr = sdr.readStream(rx_stream, [samples], len(samples))
                    if sr.ret != len(samples):
                        print("SDR sampling error")
                        return

                    stabilizer_throttle += 1
                    if stabilizer_throttle == 30:
                        stabilizer.input(samples)
                        stabilizer_throttle = 0
            finally:
                sdr.deactivateStream(rx_stream)
        finally:
            sdr.closeStream(rx_stream)
    finally:
        induction.stop()


if __name__ == "__main__":
    main()