from django.core.management.base import BaseCommand
from django.contrib.auth import get_user_model

from django.utils import timezone
from datetime import datetime, timedelta

from uncloud_pay.models import *
#import opennebula.models as one
from uncloud_vm.models import *

def vm_price_2020(cpu=1, ram=2, v6only=False):
    if v6only:
        discount = 9
    else:
        discount = 0

    return cpu*3 + ram*4 - discount

def disk_price_2020(size_in_gb, disk_type):
    if disk_type == VMDiskType.CEPH_SSD:
        price = 3.5/10
    elif disk_type == VMDiskType.CEPH_HDD:
        price = 1.5/100
    else:
        raise Exception("not yet defined price")

    return size_in_gb * price

class Command(BaseCommand):
    help = 'Adding VMs / creating orders for user'

    def add_arguments(self, parser):
        parser.add_argument('--username', type=str, required=True)

    def handle(self, *args, **options):
        user = get_user_model().objects.get(username=options['username'])
        addr, created = BillingAddress.objects.get_or_create(
            owner=user,
            active=True,
            defaults={'organization': 'Undefined organisation',
                      'name': 'Undefined name',
                      'street': 'Undefined Street',
                      'city': 'Undefined city',
                      'postal_code': '8750',
                      'country': 'CH',
                      'active': True
            }
        )


        # 25206
        vm25206 = VMProduct.objects.create(name="OpenNebula 25206",
                            cores=1,
                            ram_in_gb=4,
                            owner=user)

        vm25206_ssd = VMDiskProduct.objects.create(vm=vm25206,
                                    owner=user,
                                    size_in_gb=30)

        order_vm_25206 = Order.objects.create(owner=user,
                                              billing_address=addr,
                                              starting_date=timezone.make_aware(datetime.datetime(2020,3,3)),
                                              recurring_period=RecurringPeriod.PER_30D,
                                              recurring_price = vm_price_2020(cpu=1, ram=4) / 2,
                                              description = "VM %s" % vm25206
        )

        order_vm_25206_ssd = Order.objects.create(owner=user,
                                                  billing_address=addr,
                                                  starting_date=timezone.make_aware(datetime.datetime(2020,3,3)),
                                                  recurring_period=RecurringPeriod.PER_30D,
                                                  recurring_price = disk_price_2020(30, VMDiskType.CEPH_SSD) / 2,
                                                  description = vm25206_ssd
        )

        vm25206.cores = 2
        vm25206.ram_in_gb = 8
        vm25206.save()

        order_vm_25206_growing = Order.objects.create(owner=user,
                                                      billing_address=addr,
                                                      starting_date=timezone.make_aware(datetime.datetime(2020,4,17)),
                                                      recurring_period=RecurringPeriod.PER_30D,
                                                      recurring_price = vm_price_2020(cpu=2, ram=8) / 2,
                                                      replaces=order_vm_25206,
                                                      description = "VM %s" % vm25206
        )