# ===============LICENSE_START=======================================================
# Acumos Apache-2.0
# ===================================================================================
# Copyright (C) 2018 AT&T Intellectual Property. All rights reserved.
# ===================================================================================
# This Acumos software file is distributed by AT&T
# under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# This file is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
# ===============LICENSE_END=========================================================

from datetime import datetime
from enum import Enum
from flask_mongoengine import MongoEngine

import pytz

db = MongoEngine()


def utcnow():
    return datetime.utcnow().replace(tzinfo=pytz.utc)


class ModelFormat(Enum):
    CUSTOM = "Custom"
    POJO = "H2OPojo"
    MOJO = "H2OMojo"
    RDS = "RDS"

    @staticmethod
    def get_formats():
        return [entry.value for entry in ModelFormat]


class ModelDocument(db.Document):
    key = db.StringField(unique=True)
    name = db.StringField()
    version_id = db.StringField()
    model_format = db.StringField()
    description = db.StringField()
    created_timestamp = db.DateTimeField(default=utcnow)

    # internal location to model file
    model_path = db.StringField()
