#!/usr/bin/env python

# Gui to get parameters for espota.py
# espota.py is available https://raw.githubusercontent.com/esp8266/Arduino/master/tools/espota.py
# and should be in the same directory
from tkinter import *
from tkinter import filedialog
from tkinter.messagebox import *

import subprocess


class Updater(Frame):
    file = None

    def __init__(self, win, **kwargs):
        Frame.__init__(self, win, **kwargs)
        button_opt = {'fill': constants.BOTH, 'padx': 5, 'pady': 5}
        Button(root, text='Select firmware',
               command=self.askopenfile).pack(**button_opt)

        self.ipEntry = Entry(root)
        self.ipEntry.pack()
        self.ipEntry.delete(0, END)
        self.ipEntry.insert(0, "192.168.0.XX")

        Button(root, text='Install', command=self.install).pack(pady=20)

    def install(self):
        ip = self.ipEntry.get()
        print("Installing", self.file, "at ip", ip)

        if self.file != None:
            subprocess.call(["python", "espota.py", "-i", ip, "-f", self.file])
        else:
            showerror("Error", "Select a firmware first")

    def askopenfile(self):
        self.file = filedialog.askopenfilename(
            title='Select Firmware', filetypes=[('binaries', '*.bin')])

root = Tk()
root.title("Firmware Updater")

updater = Updater(root)
updater.mainloop()
updater.destroy()