# Generated by Django 3.2.13 on 2022-09-29 11:03

from django.db import migrations

from assets.const.host import GATEWAY_NAME


def _create_account_obj(secret, secret_type, gateway, asset, account_model):
    return account_model(
        asset=asset,
        secret=secret,
        org_id=gateway.org_id,
        secret_type=secret_type,
        username=gateway.username,
        name=f'{gateway.name}-{secret_type}-{GATEWAY_NAME.lower()}',
    )


def migrate_gateway_to_asset(apps, schema_editor):
    db_alias = schema_editor.connection.alias
    node_model = apps.get_model('assets', 'Node')
    org_model = apps.get_model('orgs', 'Organization')
    gateway_model = apps.get_model('assets', 'Gateway')
    platform_model = apps.get_model('assets', 'Platform')
    gateway_platform = platform_model.objects.using(db_alias).get(name=GATEWAY_NAME)

    print('>>> migrate gateway to asset')
    asset_dict = {}
    host_model = apps.get_model('assets', 'Host')
    asset_model = apps.get_model('assets', 'Asset')
    protocol_model = apps.get_model('assets', 'Protocol')
    gateways = gateway_model.objects.all()

    org_ids = gateways.order_by('org_id').values_list('org_id', flat=True).distinct()
    node_dict = {}
    for org_id in org_ids:
        org = org_model.objects.using(db_alias).filter(id=org_id).first()
        node = node_model.objects.using(db_alias).filter(
            org_id=org_id, value=org.name, full_value=f'/{org.name}'
        ).first()
        node_dict[org_id] = node

    for gateway in gateways:
        comment = gateway.comment if gateway.comment else ''
        data = {
            'comment': comment,
            'name': f'{gateway.name}-{GATEWAY_NAME.lower()}',
            'address': gateway.ip,
            'domain': gateway.domain,
            'org_id': gateway.org_id,
            'is_active': gateway.is_active,
            'platform': gateway_platform,
        }
        asset = asset_model.objects.using(db_alias).create(**data)
        node = node_dict.get(str(gateway.org_id))
        asset.nodes.set([node])
        asset_dict[gateway.id] = asset
        protocol_model.objects.using(db_alias).create(name='ssh', port=gateway.port, asset=asset)
    hosts = [host_model(asset_ptr=asset) for asset in asset_dict.values()]
    host_model.objects.using(db_alias).bulk_create(hosts, ignore_conflicts=True)

    print('>>> migrate gateway to account')
    accounts = []
    account_model = apps.get_model('accounts', 'Account')
    for gateway in gateways:
        password = gateway.password
        private_key = gateway.private_key
        asset = asset_dict[gateway.id]
        if password:
            accounts.append(_create_account_obj(
                password, 'password', gateway, asset, account_model
            ))

        if private_key:
            accounts.append(_create_account_obj(
                private_key, 'ssh_key', gateway, asset, account_model
            ))
    account_model.objects.using(db_alias).bulk_create(accounts)


class Migration(migrations.Migration):
    dependencies = [
        ('assets', '0102_auto_20220816_1022'),
    ]

    operations = [
        migrations.RunPython(migrate_gateway_to_asset),
        migrations.DeleteModel(
            name='Gateway',
        ),
        migrations.CreateModel(
            name='Gateway',
            fields=[
            ],
            options={
                'proxy': True,
                'indexes': [],
                'constraints': [],
                'verbose_name': 'Gateway'
            },
            bases=('assets.host',),
        ),
    ]