# Generated by Django 2.0.9 on 2018-11-14 08:55

from django.db import migrations, models
import django.db.models.deletion
import django.utils.timezone


def populate_domains(apps, schema_editor):
    Domain = apps.get_model("federation", "Domain")
    Actor = apps.get_model("federation", "Actor")

    domains = set(
        [v.lower() for v in Actor.objects.values_list("old_domain", flat=True) if v]
    )
    for domain in sorted(domains):
        print("Populating domain {}...".format(domain))
        first_actor = (
            Actor.objects.order_by("creation_date")
            .exclude(creation_date=None)
            .filter(old_domain__iexact=domain)
            .first()
        )

        if first_actor:
            first_seen = first_actor.creation_date
        else:
            first_seen = django.utils.timezone.now()

        Domain.objects.update_or_create(
            name=domain, defaults={"creation_date": first_seen}
        )

    for domain in Domain.objects.all():
        Actor.objects.filter(old_domain__iexact=domain.name).update(domain=domain)


def skip(apps, schema_editor):
    pass


class Migration(migrations.Migration):

    dependencies = [("federation", "0014_auto_20181205_0958")]

    operations = [
        migrations.RunPython(populate_domains, skip),
        migrations.AlterField(
            model_name="actor",
            name="domain",
            field=models.ForeignKey(
                on_delete=django.db.models.deletion.CASCADE,
                related_name="actors",
                to="federation.Domain",
            ),
        ),
    ]