import os
import numpy as np
import cv2
from PIL import ImageTk
import PIL.Image
import msvcrt as m

from tkinter import *

path = 'img/'
images = os.listdir(path)
imgNum = len(images)
idx = 0

def leftKey(event):


    changeImg()
    os.rename(path + images[idx-1], path + 'left/' + images[idx-1])



def rightKey(event):
    changeImg()
    os.rename(path + images[idx-1], path + 'right/' + images[idx-1])



def changeImg():
    global idx
    idx += 1
    if(idx == imgNum):
        root.destroy()
    else:
        img2 = ImageTk.PhotoImage(PIL.Image.open(path + images[idx]))
        panel.configure(image=img2)
        panel.image = img2



if not os.path.exists(path + 'left'):
    os.makedirs(path + 'left')

if not os.path.exists(path + 'right'):
    os.makedirs(path + 'right')

root = Tk()
img = ImageTk.PhotoImage(PIL.Image.open(path + images[idx]))
panel = Label(root, image = img)
panel.pack(side = "bottom", fill = "both", expand = "yes")


root.bind('<Left>', leftKey)
root.bind('<Right>', rightKey)
root.mainloop()