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# TCP connection
try:
    so = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
except socket.error as err:
    print ("socket creation failed with error %s" %(err))

# default port for socket
port = 2000

# default time out
so.settimeout(1000000)

try:
    host_ip = socket.gethostbyname('localhost')
except socket.gaierror:
    # this means could not resolve the host
    print ("there was an error resolving the host")
    sys.exit()

# connecting to the server
so.connect((host_ip,port))

# MATLAB INFORMATION FOR OFFLINE EXPERIMENT
Nepoch = 10  #nr de epochs por trial
Nwords = 7   #nr de palavras (SIM, NAO, FOME, SEDE, URINAR, AR, POSICAO)
SeqTrain = [1, 3, 5, 7, 2, 4, 6, 1, 3, 5, 7, 2, 4, 6] #sequencia offline de treino

# read the TCP sequence received
def sequencia():
    num = 0
    for i in range(0,999):
        s = so.recv(port) + b'n' #since the sequence received is : 1n 2n 5n etc
        i = int(s)
        #feedbak offline (for the user to know which are the words)
        if (num in (0, Nepoch*Nwords+1, Nepoch*Nwords*2+2, Nepoch*Nwords*3+3, Nepoch*Nwords*4+4, Nepoch*Nwords*5+5,
                    Nepoch*Nwords*6+6)):
            labels1[i-1].configure(foreground="white")
            root.update()
        elif (num in (Nepoch*Nwords*7+7, Nepoch*Nwords*8+8, Nepoch*Nwords*9+9, Nepoch*Nwords*10+10,
                     Nepoch*Nwords*11+11, Nepoch*Nwords*12+12, Nepoch*Nwords*13+13)):
            labels2[i-1].configure(foreground="white")
            root.update()
        else:
            labels[i-1].configure(background="green",foreground="red")
            root.update()
            winsound.PlaySound(sounds[i-1], winsound.SND_FILENAME)
            labels[i-1].configure(background="gray",foreground="white")
            root.update()
        num = num + 1