#update_streams

from django.conf import settings
from twitchAPI.twitch import Twitch
from frontend import models
from datetime import datetime
import pprint

pp = pprint.PrettyPrinter(indent=4)

def run():

    t_client = Twitch(settings.TWITCH_CLIENT_ID, settings.TWITCH_CLIENT_SECRET)
    channels = models.Channel.objects.filter(active=True)

    try:
        t_streams = t_client.get_streams(
            user_id=[channel.tid for channel in channels],
            first=min(len(channels),100))
    except:
        t_streams = None
        pp.pprint("Error communicating with Twitch API")

    updated_channels = []

    if t_streams:
        for s in t_streams['data']:
            c = channels.get(name__iexact=s['user_login'].lower())

            pp.pprint("Updating: " + c.name + " is Live")

            updated_channels.append(c.name)
            c.live = True
            c.preview = s['thumbnail_url'] \
                .replace("{width}",str(settings.THUMBNAIL_WIDTH)) \
                .replace("{height}",str(settings.THUMBNAIL_HEIGHT))
            c.viewer_count = s['viewer_count']
            c.game = s['game_name']
            c.last_saved = datetime.now()

            c.save()

    #set stale channels to not-live
    for c in channels:
        if c.live == True and c.name not in updated_channels and c.age_in_seconds() > settings.CHANNEL_STALE_TIME:
            pp.pprint("Marking Stale: " + c.name + " (age: " + str(c.age_in_seconds()) + ")")
            c.live = False
            c.save()