#!/usr/bin/env python

"""
Raspberry Pi Youtube Counter for CheapAssReviews Channel

Cheapassreviews.com

Helped me:
http://stackoverflow.com/questions/36252027/how-to-use-youtube-api-v3-for-realtime-subscribers
https://max7219.readthedocs.io/en/latest/
http://raspi.tv/2013/8-x-8-led-array-driven-by-max7219-on-the-raspberry-pi-via-python
http://www.raspberrypi-spy.co.uk/2012/06/simple-guide-to-the-rpi-gpio-header-and-pins/
http://raspberrypi.stackexchange.com/questions/8734/execute-script-on-start-up
"""
import RPi.GPIO as GPIO
import math
import os
import sys

import httplib2
import json
import urllib

import time
import random
import socket

from select import select

import max7219.led as led

#channel id and API key
channel_id = "ENTER YOUR CHANNEL ID HERE" # channel id
#channel_id = "UCtinbF-Q-fVthA0qrFQTgXQ" # casey
api_key = "ENTER YOUR API KEY HERE"
lookup_url = "https://www.googleapis.com/youtube/v3/channels?part=statistics&id=" + channel_id + "&key=" + api_key

#Change brightness here
brightness_setting = 1 # I hate bright lights


def is_connected():
    try:
        host = socket.gethostbyname("www.google.com")
        s = socket.create_connection((host, 80), 2)
        return True
    except:
        pass
    return False


def main():
    # create seven segment device
    device = led.sevensegment(cascaded=1)

    device.brightness(brightness_setting)
    device.clear()

    while 1:

        try:
            # Catches the webpage from google
            soup = urllib.urlopen(lookup_url)
            markup = soup.read()

            # Access the part of the JSON object that we care about
            feed_json = json.loads(markup)
            sub_count = feed_json["items"][0]["statistics"]["subscriberCount"]

            # Tells us how great we are (writes to display
            device.write_text(0, sub_count)

        except:
            # If can't get new number, screen goes blank
            device.clear()

        time.sleep(1)



if __name__ == '__main__':
    main()