"""
* Version: 0.3

* Purposes:
    * Module `labs_core.server_scope` serves as an information provider for the front end server.
    * The suggested usage is calling it's `get_xxx` routines and cache the information at the front end server side during startup for server process lifecycle.
"""
import boto3, json
from botocore.exceptions import ClientError

from django.conf import settings


def _get_secret(secret_name: str) -> dict:

    region_name = "us-west-2"

    session = boto3.session.Session()
    client = session.client(service_name="secretsmanager", region_name=region_name)

    try:
        get_secret_value_response = client.get_secret_value(SecretId=secret_name)
    except ClientError as e:
        raise e

    secret = json.loads(get_secret_value_response["SecretString"])
    return secret


def get_database_connection_info() -> dict:
    return {
        "username": settings.DATABASES["default"]["USER"],
        "password": settings.DATABASES["default"]["PASSWORD"],
        "host": settings.DATABASES["default"]["HOST"],
        "port": settings.DATABASES["default"]["PORT"],
        "dbname": settings.DATABASES["default"]["NAME"],
    }


def get_server_keys() -> dict:

    secret = _get_secret("session-key-labs-prod-ro")
    return {
        "session-encryption-key": secret["session-encryption-key"],
        "cloud-serverless-pool-public-key": secret["cloud-serverless-pool-public-key"],
        "cloud-serverless-pool-private-key": secret[
            "cloud-serverless-pool-private-key"
        ],
    }