from threading import *
import serial
import time
import tkinter
import serial.tools.list_ports
import queue
from tkinter import *

ser = serial.Serial()
global roll
roll = True
q = queue.Queue()

def connection(wybranyPort):
    try:
        global ser
        ser = serial.Serial(wybranyPort, 57600, timeout=0,
                            parity=serial.PARITY_NONE, rtscts=1)
        messagebox.showinfo( "Connection", "Connected!")
    except:
        messagebox.showinfo( "Connection", "Connection Failed!")

def sendReset():
    try:
        tablicaHEX = bytes([0x02, 0x00, 0x3C, 0x3C, 0x00])
        ser.setRTS(True)
        ser.setDTR(True)
        time.sleep(0.01)
        ser.write(bytes(tablicaHEX))
        ser.setRTS(False)
        ser.setDTR(True)
    except:
        print("Nie mozna wyslac RESETU")
        
def receiveData():
    global ser
    global q
    global dataList
    while(roll):
        if(ser.isOpen() == True):
            while(ser.inWaiting()):
                s = ser.read()
                for i in s:
                    q.put(i)
                while not q.empty():
                    tab = hex(q.get())
                    dataList.config(state=NORMAL)
                    dataList.insert(END, tab + " ")
                    dataList.config(state=DISABLED)
global t
t = Thread(target=receiveData)
try:
    if(t.isAlive()==False):
        t.start()
except:
    print("Nie moze wystartowac watek")

"""
GRAFICZNY INTERFEJS UZYTKOWNIKA
"""

def selectComPort():
    wybranyElement = listBox.curselection()
    for i in wybranyElement:
        wybranyPort = listBox.get(i)
    connection(wybranyPort)
    
def listOfComPorts(mainFrame):
    global listBox
    comPorts = list(serial.tools.list_ports.comports())
    listBox = Listbox(mainFrame, width = 15, height = 1, selectmode=EXTENDED)
    if(len(comPorts) == 0):
        listBox.insert(0, "Brak")
    for i in range(len(comPorts)):
        listBox.insert(i, comPorts[i][0])
    listBox.grid(sticky = W, row=0, column=1)

def createLabel():
    labelChoosePort = Label(text = 'Wybierz port: ')
    labelChoosePort.grid(row = 0, column = 0,columnspan = 1, rowspan = 2)
def createConnectButton():
    buttonConnect = Button(text = "Polacz", command=selectComPort)
    buttonConnect.grid(row=0, column = 2)

def createResetButton():
    buttonReset = Button(text = "Reset", command=sendReset)
    buttonReset.grid(row=2, column = 2)

def createDataList():
    global dataList
    dataList = Text(height=20, width = 70)
    dataList.grid(row=3, column = 0, columnspan = 5)

def createFrame():
    mainFrame = tkinter.Tk()
    mainFrame.geometry('500x200')
    createLabel()
    createDataList()
    listOfComPorts(mainFrame)
    createConnectButton()
    createResetButton()
    mainFrame.mainloop()

def main():
    createFrame()
    ser.close
    
    
if __name__ == "__main__":
    main()