from ftplib import FTP_TLS as FTP
from customtkinter import *
import time
import datetime
import math
from tkinter import simpledialog
import os



def ftpDownload(file, stream):
    ftp = FTP("gitea.piwalker.net")
    ftp.login()
    ftp.prot_p()
    #create tkinter window
    print("downloading file: "+file)
    dialog = CTk()
    if os.name == 'posix':
        dialog.attributes('-type', 'dialog')
    dialog.title("Downloading Files")
    set_appearance_mode("dark")
    set_default_color_theme("blue")

    label = CTkLabel(master=dialog, text="Downloading "+file.split("/")[-1])
    label.pack()
    pbar = CTkProgressBar(master=dialog)
    pbar.pack(padx=20, pady=20)
    progress = StringVar()
    ETA = StringVar()
    progress_label = CTkLabel(master=dialog, textvariable=progress)
    progress_label.pack()
    eta_label = CTkLabel(master=dialog, textvariable=ETA)
    eta_label.pack()
    size = ftp.size(file)
    if size < 1024*1024:
        dialog.withdraw()
    total = 0
    timer = 0
    start = time.time()
    dialog.update()

    def downloadCallback(data):
        nonlocal total
        nonlocal pbar
        nonlocal start
        nonlocal progress
        nonlocal ETA
        nonlocal timer
        stream.write(data)
        total += len(data)
        if time.time() - timer >= 1:
            progress.set(str(round(total/1048576, 1))+" MB / "+str(round(size/1048576, 1))+" MB @ " + str(round((total/1048576)/(time.time()-start), 3))+" MB/s")
            time_left = (size-total)/(total/(time.time()-start))
            ETA.set("ETA: " + str(datetime.timedelta(seconds=math.ceil(time_left))))
            pbar.set(total/size)
            timer = time.time()
        dialog.update()
    ftp.retrbinary("RETR " + file, downloadCallback)
    dialog.destroy()
    ftp.close()

def ftpUpload(file, stream, username, password):
    ftp = FTP("gitea.piwalker.net", username, password)
    ftp.prot_p()
    up_dialog = CTk()
    if os.name == 'posix':
        up_dialog.attributes('-type', 'dialog')
    up_dialog.title("Uploading Files")
    set_appearance_mode("dark")
    set_default_color_theme("blue")

    label = CTkLabel(master=up_dialog, text="Uploading "+file.split("/")[-1])
    label.pack()
    pbar = CTkProgressBar(master=up_dialog)
    pbar.pack(padx=20, pady=20)
    prog = StringVar(master=up_dialog)
    eta = StringVar(master=up_dialog)
    progress_label = CTkLabel(master=up_dialog, textvariable=prog)
    progress_label.pack()
    eta_label = CTkLabel(master=up_dialog, textvariable=eta)
    eta_label.pack()
    stream.seek(0, os.SEEK_END)
    size = stream.tell()
    stream.seek(0)
    if size < 1024*1024:
        up_dialog.withdraw()
    total = 0
    timer = 0
    start = time.time()
    up_dialog.update()


    def uploadCallback(data):
        nonlocal total
        nonlocal pbar
        nonlocal start
        nonlocal prog
        nonlocal eta
        nonlocal timer
        nonlocal up_dialog
        total += len(data)
        if time.time() - timer >= 1:
            prog.set(str(round(total/1048576, 1))+" MB / "+str(round(size/1048576, 1))+" MB @ " + str(round((total/1048576)/(time.time()-start), 3))+" MB/s")
            time_left = (size-total)/(total/(time.time()-start))
            eta.set("ETA: " + str(datetime.timedelta(seconds=math.ceil(time_left))))
            pbar.set(total/size)
            timer = time.time()
        up_dialog.update()
        up_dialog.update()

    ftp.storbinary("STOR "+file,stream, callback=uploadCallback)
    up_dialog.destroy()
    ftp.close()

def ftpMakeDirectory(path, username, password):
    ftp = FTP("gitea.piwalker.net", username, password)
    ftp.prot_p()
    ftp.mkd(path)
    ftp.close()

def ftpDeleteDirectory(path, username, password):
    def deleteFolder(ftp, path):
        print("Deleting folder: "+path)
        ftp.cwd(path)
        for item in ftp.nlst():
            try:
                print("deleting file: "+path)
                ftp.delete(item)
            except:
                deleteFolder(ftp, item)
        ftp.cwd("..")
        ftp.rmd(path)
    ftp = FTP("gitea.piwalker.net", username, password)
    ftp.prot_p()
    deleteFolder(ftp, path)
    ftp.close()