import sys
from threading import Thread


def PlaySoundWin(fname):
    import winsound
    import sys

    winsound.PlaySound(fname, winsound.SND_FILENAME)


##def PlaySoundOSS(fname):
##    import wave
##    import ossaudiodev
##
##    s = wave.open(fname,'rb')
##    (nc,sw,fr,nf,comptype, compname) = s.getparams( )
##    dsp = ossaudiodev.open('/dev/dsp','w')
##    try:
##        from ossaudiodev import AFMT_S16_NE
##    except ImportError:
##        if byteorder == "little":
##            AFMT_S16_NE = ossaudiodev.AFMT_S16_LE
##        else:
##            AFMT_S16_NE = ossaudiodev.AFMT_S16_BE
##    dsp.setparameters(AFMT_S16_NE, nc, fr)
##    data = s.readframes(nf)
##    s.close()
##    dsp.write(data)
##    dsp.close()


def PlaySoundAlsa(fname):
    import wave
    import alsaaudio

    f = wave.open(fname, 'rb')
    device = alsaaudio.PCM(card='default')

    device.setchannels(f.getnchannels())
    device.setrate(f.getframerate())

    if f.getsampwidth() == 1:
        device.setformat(alsaaudio.PCM_FORMAT_U8)
    elif f.getsampwidth() == 2:
        device.setformat(alsaaudio.PCM_FORMAT_S16_LE)
    elif f.getsampwidth() == 3:
        device.setformat(alsaaudio.PCM_FORMAT_S24_LE)
    elif f.getsampwidth() == 4:
        device.setformat(alsaaudio.PCM_FORMAT_S32_LE)
    else:
        raise ValueError('Unsupported format')

    device.setperiodsize(320)

    data = f.readframes(320)
    while data:
        device.write(data)
        data = f.readframes(320)
    f.close()


def PlaySound(fname):
    if sys.platform in ('win32', 'cygwin'):
        PlaySoundWin(fname)
    else:
        PlaySoundAlsa(fname)


def PlaySoundAsync(fname):
    pt = Thread(target=PlaySound, args=(fname,))
    pt.start()