#!/usr/bin/env python3
# taken from: https://askubuntu.com/questions/597395/how-to-set-custom-keyboard-shortcuts-from-terminal
# how to use: python3 /path/to/script.py '<name>' '<command>' '<key_combination>'
# An example: python3 /path/to/script.py 'open gedit' 'gedit' '<Alt>7'
#
# Super key: <Super>
# Control key: <Primary> or <Control>
# Alt key: <Alt>
# Shift key: <Shift>
# numbers:                   1 (just the number)
# Spacebar:                  space
# Slash key:                 slash
# Asterisk key:              asterisk(so it would need `<Shift>` as well)
# Ampersand key:             ampersand(so it would need <Shift> as well)
# a few numpad keys:
# Numpad divide key(`/`):   KP_Divide
# Numpad multiply(Asterisk): KP_Multiply
# Numpad number key(s):      KP_1
# Numpad `-`:                KP_Subtract

import subprocess
import sys

# defining keys & strings to be used
key = "org.gnome.settings-daemon.plugins.media-keys custom-keybindings"
subkey1 = key.replace(" ", ".")[:-1]+":"
item_s = "/"+key.replace(" ", "/").replace(".", "/")+"/"
firstname = "custom"
# get the current list of custom shortcuts


def get(cmd): return subprocess.check_output(
    ["/bin/bash", "-c", cmd]).decode("utf-8")


array_str = get("gsettings get "+key)
# in case the array was empty, remove the annotation hints
command_result = array_str.lstrip("@as")
current = eval(command_result)
# make sure the additional keybinding mention is no duplicate
n = 1
while True:
    new = item_s+firstname+str(n)+"/"
    if new in current:
        n = n+1
    else:
        break
# add the new keybinding to the list
current.append(new)
# create the shortcut, set the name, command and shortcut key
cmd0 = 'gsettings set '+key+' "'+str(current)+'"'
cmd1 = 'gsettings set '+subkey1+new+" name '"+sys.argv[1]+"'"
cmd2 = 'gsettings set '+subkey1+new+" command '"+sys.argv[2]+"'"
cmd3 = 'gsettings set '+subkey1+new+" binding '"+sys.argv[3]+"'"

for cmd in [cmd0, cmd1, cmd2, cmd3]:
    subprocess.call(["/bin/bash", "-c", cmd])