get_parent.py

#!/usr/bin/env python3

# Copyright 2023 Google LLC

# Licensed 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
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License 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.

import os
import logging
import firebase_admin
from firebase_admin import credentials
from firebase_admin import firestore

logger = logging.getLogger(__name__)


def get_parent(case) -> str:
    """
    Retrieves the full parent path for a given case id.

    Parameters
    ----------
    case : str
      unique id of the case
    """
    # Initialize the Firebase app if it hasn"t already been done
    if not firebase_admin._apps:
        PROJECT_ID = os.environ.get("PROJECT_ID")
        cred = credentials.ApplicationDefault()
        firebase_admin.initialize_app(cred, {
            "projectId": PROJECT_ID,
        })

    collection = "cases"
    db = firestore.client()
    firestore_cases = db.collection(collection).where("case_number", "==",
                                                      case).get()

    if firestore_cases:
        return firestore_cases[0].to_dict()["resource_name"]
    else:
        return "Case not found"


if __name__ == "__main__":
    test_case = os.environ.get("TEST_CASE")
    print(get_parent(test_case))