from __future__ import absolute_import, unicode_literals
from celery import shared_task
from . import models
from datetime import datetime
from . import utils


@shared_task
def process_location_data():
    data = models.LocationData.objects.filter(processed=False)
    for ld in data:
        cli = models.Client.objects.filter(uuid=ld.location_id)
        if cli.count() < 1:
            ld.processed = True
            ld.error_msg = 'No location object found. Stopp processing!'
            ld.save()
            # TODO Send error eMail to Admin
        else:
            cli = cli[0]
            ac = models.Accounting.objects.filter(client=cli).order_by('time_from').reverse()
            if ld.on_off:
                if ac.count() > 0 and ac[0].time_to is None:
                    ac[0].time_to = datetime.now()
                    ac[0].save()
                    # TODO Send error eMail to Admin
                acc = models.Accounting(
                    client=cli,
                    desk_no=ld.table_no,
                    time_from=ld.tst,
                )
                acc.save()
                ld.delete()
            else:
                acc = ac[0]
                acc.time_to = ld.tst
                acc.prize = utils.get_prize_for(
                    start=acc.time_from,
                    end=ld.tst,
                    pph=cli.desk1_prize_ht
                )
                acc.save()
                ld.delete()