from tkinter import *
from tkinter.ttk import Combobox
from tkinter import scrolledtext
from tkinter import messagebox as mb
import os


def refresh():
    titles = os.listdir()
    S=(box.size() - 1)
    box.delete(0,S)
    for i in titles:
        box.insert(END,i)

def btn1Pressed():
    titles = os.listdir()
    num = 1+ (len(titles))
    txtf = 'New_Text_' + str(num)
    thsFile = open(txtf, 'tw')
    thsFile.close
    refresh()


def btn2Pressed():
    index = box.curselection()
    name = (box.get(index))

    os.remove(name)
    S=(box.size() - 1)
    refresh()


def boxSelected(*args):
    global L
    text = txt.get(1.0, END)
    name = (box.get(L))
    f = open(name,'r+')
    f.write(text)
    f.close()


    index = box.curselection()
    name = (box.get(index))
    title.configure(text=name)
    f = open(name, 'r+')
    text = f.read()
    txt.delete(1.0, END)
    txt.insert(0.0, text)

    L = index



def btnRenPressed():
    index = box.curselection()

    ReW = Tk()
    ReW.title("Enter new name")
    window.geometry('500x600')

    frameRename=Frame(ReW,bd=2)
    frameButtons12=Frame(ReW,bd=2)
    frameRename.pack(side='top')
    frameButtons12.pack(side='bottom')

    entryRe=Entry(frameRename)

    entryRe.pack()

    compBut=Button(frameButtons12, text="Rename", command=lambda: BSave(entryRe))
    compBut.pack(side="left")

    noButton=Button(frameButtons12, text="Exit", command=ReW.destroy)
    noButton.pack(side='right')

    ReW.mainloop()

def BSave(entryRe):
    nName = entryRe.get()
    index = box.curselection()
    name = (box.get(index))
    os.rename(name,nName)
    refresh()


f=open('config', 'r')
f.close()
os.chdir('texts')
titles = os.listdir()


L = 0


window = Tk()
window.title("msin")
window.geometry('600x800')

# Главный фрейм
mainFrame=Frame(window,bd=5)
mainFrame.pack(fill="both", expand="true")
# Левый и правый фреймы
leftFrame=Frame(mainFrame,bd=2)
leftFrame.pack(side='left')
rightFrame=Frame(mainFrame,bd=2)
rightFrame.pack(side='right',fill="both", expand="true")

# Содержимое левого фрейма
btnFrame=Frame(leftFrame,bd=2)
boxFrame=Frame(leftFrame,bd=2)

# Содержимое правого фрейма
txtFrame=Frame(rightFrame,bd=5)
topFrame=Frame(rightFrame,bd=2)
topFrame.pack(side='top')

# Содержимое верхнего фрейма
titleFrame=Frame(topFrame,bd=2)
titleFrame.pack(fill="both", expand="true")

# Содержимое заголовочного фрейма
saveFrame=Frame(titleFrame,bd=2)
saveFrame.pack(side='left',fill="both")

btnRen = Button(saveFrame, text="Rename",command=btnRenPressed)
btnSave = Button(saveFrame, text="Save",command=btnRenPressed)
btnRen.pack(side='left')
btnSave.pack(side='right')

# Лейбл с полем ввода заголовка
title = Label(titleFrame, width=50, bd=2)
title.pack(fill="both", expand="true")



# Листбокс
box = Listbox(boxFrame, bd=2, selectmode=BROWSE)
for i in titles:
    box.insert(END,i)
box.bind('<<ListboxSelect>>', boxSelected)
box.pack()
boxFrame.pack(side='bottom')

# Кнопка
btn1 = Button(btnFrame,text="New",command=btn1Pressed)
btn1.pack(side='left')

btn2 = Button(btnFrame,text="Del",command=btn2Pressed)
btn2.pack(side='right')
btnFrame.pack(side='top')


# Поле ввода текста
txt = scrolledtext.ScrolledText(txtFrame, bd=2)
txt.pack(fill="both", expand="true")
txtFrame.pack(side="bottom",fill="both", expand="true")

refresh()


window.mainloop()