from django.core.management.base import BaseCommand, CommandError

import time
from api.models import Order
from api.logics import Logics
from django.utils import timezone

class Command(BaseCommand):
    help = 'Follows all active hold invoices'

    # def add_arguments(self, parser):
    #     parser.add_argument('debug', nargs='+', type=boolean)

    def handle(self, *args, **options):
        ''' Continuously checks order expiration times for 1 hour. If order
        has expires, it calls the logics module for expiration handling.'''

        do_nothing = [Order.Status.DEL, Order.Status.UCA,
                    Order.Status.EXP, Order.Status.FSE,
                    Order.Status.DIS, Order.Status.CCA,
                    Order.Status.PAY, Order.Status.SUC,
                    Order.Status.FAI, Order.Status.MLD,
                    Order.Status.TLD]

        while True:
            time.sleep(5)

            queryset = Order.objects.exclude(status__in=do_nothing)
            queryset = queryset.filter(expires_at__lt=timezone.now()) # expires at lower than now

            debug = {}
            debug['num_expired_orders'] = len(queryset)
            debug['expired_orders'] = []

            for idx, order in enumerate(queryset):
                context = str(order)+ " was "+ Order.Status(order.status).label
                if Logics.order_expires(order): # Order send to expire here
                    debug['expired_orders'].append({idx:context})
                
            self.stdout.write(str(timezone.now()))
            self.stdout.write(str(debug))