# Generated by Django 3.2.2 on 2021-05-26 09:43

from django.db import migrations
from django.db.backends.postgresql.schema import BaseDatabaseSchemaEditor
from django.db.migrations.state import StateApps


def migrate_to_edit_topic_policy(apps: StateApps, schema_editor: BaseDatabaseSchemaEditor) -> None:
    Realm = apps.get_model("zerver", "Realm")
    Realm.POLICY_EVERYONE = 5
    Realm.POLICY_ADMINS_ONLY = 2
    Realm.objects.filter(allow_community_topic_editing=False).update(
        edit_topic_policy=Realm.POLICY_ADMINS_ONLY
    )
    Realm.objects.filter(allow_community_topic_editing=True).update(
        edit_topic_policy=Realm.POLICY_EVERYONE
    )


def reverse_migrate_to_edit_topic_policy(
    apps: StateApps, schema_editor: BaseDatabaseSchemaEditor
) -> None:
    Realm = apps.get_model("zerver", "Realm")
    Realm.POLICY_EVERYONE = 5
    Realm.POLICY_ADMINS_ONLY = 2
    Realm.objects.filter(edit_topic_policy=Realm.POLICY_ADMINS_ONLY).update(
        allow_community_topic_editing=False
    )
    Realm.objects.filter(edit_topic_policy=Realm.POLICY_EVERYONE).update(
        allow_community_topic_editing=True
    )


class Migration(migrations.Migration):

    dependencies = [
        ("zerver", "0327_realm_edit_topic_policy"),
    ]

    operations = [
        migrations.RunPython(
            migrate_to_edit_topic_policy,
            reverse_code=reverse_migrate_to_edit_topic_policy,
            elidable=True,
        ),
    ]