#!/bin/python

# Script requries sendmidi:
#   https://github.com/gbevin/SendMIDI
#   https://aur.archlinux.org/packages/sendmidi

# Run as sudo
# Press F12 to enable/disable


import struct
import time
import sys
import os

# ______
# Change path below to your keyboard in /dev/input

path = "/dev/input/by-id/Your-keyboard-path"

FORMAT = 'llHHI'
EVENT_SIZE = struct.calcsize(FORMAT)

evfile = open(path, "rb")

event = evfile.read(EVENT_SIZE)

enabled = False

keydict = {
    44: 60, # C
    31: 61, # C#
    45: 62, # D
    32: 63, # D#
    46: 64, # E
    47: 65, # F
    34: 66,
    48: 67, # G
    35: 68, # G#
    49: 69, # A
    36: 70, # A#
    50: 71, # B
    51: 72, # C
    38: 73, # C#
    52: 74, # D
    30: 75, # D#
    43: 76, # E

    16: 71,
    3: 72,
    17: 73,
    4: 74,
    18: 75,
    19: 76,
    6: 77,
    20: 78,
    7: 79,
    21: 80,
    8: 81,
    22: 82,
    23: 83,
    10: 84,
    24: 85,
    11: 86,
    25: 87,



}

while event:
    (tv_sec, tv_usec, type, code, value) = struct.unpack(FORMAT, event)

    if (code == 88 and value == 1):
        enabled = not enabled
    else:
        if (code in keydict and enabled == True):
            if (value == 1):
                os.system("sendmidi dev \"Renoise MIDI In Port A\" on "+ str(keydict[code])+" 127")
            if (value == 0):
                os.system("sendmidi dev \"Renoise MIDI In Port A\" off "+ str(keydict[code])+" 127")
            pass

    event = evfile.read(EVENT_SIZE)