# ------------------------------------
# Copyright (c) Microsoft Corporation.
# Licensed under the MIT License.
# ------------------------------------
import os
import asyncio
from azure.identity.aio import DefaultAzureCredential
from azure.keyvault.certificates.aio import CertificateClient
from azure.keyvault.certificates import CertificateContact
from azure.core.exceptions import HttpResponseError

# ----------------------------------------------------------------------------------------------------------
# Prerequisites:
# 1. An Azure Key Vault (https://docs.microsoft.com/en-us/azure/key-vault/quick-create-cli)
#
# 2. azure-keyvault-certificates and azure-identity packages (pip install these)
#
# 3. Set Environment variables AZURE_CLIENT_ID, AZURE_TENANT_ID, AZURE_CLIENT_SECRET, VAULT_URL
#    (See https://github.com/Azure/azure-sdk-for-python/tree/master/sdk/keyvault/azure-keyvault-keys#authenticate-the-client)
#
# ----------------------------------------------------------------------------------------------------------
# Sample - demonstrates basic CRUD operations for the certificate contacts for a key vault.
#
# 1. Create contacts (set_contacts)
#
# 2. Get contacts (get_contacts)
#
# 3. Delete contacts (delete_contacts)
# ----------------------------------------------------------------------------------------------------------


async def run_sample():
    # Instantiate a certificate client that will be used to call the service.
    # Notice that the client is using default Azure credentials.
    # To make default credentials work, ensure that environment variables 'AZURE_CLIENT_ID',
    # 'AZURE_CLIENT_SECRET' and 'AZURE_TENANT_ID' are set with the service principal credentials.
    VAULT_URL = os.environ["VAULT_URL"]
    credential = DefaultAzureCredential()
    client = CertificateClient(vault_url=VAULT_URL, credential=credential)
    try:
        contact_list = [
            CertificateContact(email="admin@contoso.com", name="John Doe", phone="1111111111"),
            CertificateContact(email="admin2@contoso.com", name="John Doe2", phone="2222222222"),
        ]

        # Creates and sets the certificate contacts for this key vault.
        await client.set_contacts(contact_list)

        # Gets the certificate contacts for this key vault.
        contacts = await client.get_contacts()
        for contact in contacts:
            print(contact.name)
            print(contact.email)
            print(contact.phone)

        # Deletes all of the certificate contacts for this key vault.
        await client.delete_contacts()

    except HttpResponseError as e:
        print("\nrun_sample has caught an error. {0}".format(e.message))

    finally:
        print("\nrun_sample done")
        await credential.close()
        await client.close()


if __name__ == "__main__":
    try:
        loop = asyncio.get_event_loop()
        loop.run_until_complete(run_sample())
        loop.close()

    except Exception as e:
        print("Top level Error: {0}".format(str(e)))