import uuid
from datetime import datetime

from app import db, encryption
from app.models import ApiKey

from app.dao.dao_utils import (
    transactional,
    version_class
)


@transactional
@version_class(ApiKey)
def save_model_api_key(api_key):
    if not api_key.id:
        api_key.id = uuid.uuid4()  # must be set now so version history model can use same id
    api_key.secret = uuid.uuid4()
    db.session.add(api_key)


@transactional
@version_class(ApiKey)
def expire_api_key(service_id, api_key_id):
    api_key = ApiKey.query.filter_by(id=api_key_id, service_id=service_id).one()
    api_key.expiry_date = datetime.utcnow()
    db.session.add(api_key)


def get_model_api_keys(service_id, id=None):
    if id:
        return ApiKey.query.filter_by(id=id, service_id=service_id, expiry_date=None).one()
    return ApiKey.query.filter_by(service_id=service_id).all()


def get_unsigned_secrets(service_id):
    """
    This method can only be exposed to the Authentication of the api calls.
    """
    api_keys = ApiKey.query.filter_by(service_id=service_id, expiry_date=None).all()
    keys = [x.secret for x in api_keys]
    return keys


def get_unsigned_secret(key_id):
    """
    This method can only be exposed to the Authentication of the api calls.
    """
    api_key = ApiKey.query.filter_by(id=key_id, expiry_date=None).one()
    return api_key.secret