# Copyright 2019 Google LLC All Rights Reserved.
#
# 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.

from __future__ import print_function


def create_http_task(
    project,
    queue,
    location,
    url,
    service_account_email,
    audience=None,
    payload=None,
):
    # [START cloud_tasks_create_http_task_with_token]
    """Create a task for a given queue with an arbitrary payload."""

    from google.cloud import tasks_v2

    # Create a client.
    client = tasks_v2.CloudTasksClient()

    # TODO(developer): Uncomment these lines and replace with your values.
    # project = 'my-project-id'
    # queue = 'my-queue'
    # location = 'us-central1'
    # url = 'https://example.com/task_handler?param=value'
    # audience = 'https://example.com/task_handler'
    # service_account_email = 'service-account@my-project-id.iam.gserviceaccount.com';
    # payload = 'hello'

    # Construct the fully qualified queue name.
    parent = client.queue_path(project, location, queue)

    # Construct the request body.
    task = {
        "http_request": {  # Specify the type of request.
            "http_method": tasks_v2.HttpMethod.POST,
            "url": url,  # The full url path that the task will be sent to.
            "oidc_token": {"service_account_email": service_account_email, "audience": audience},
        }
    }

    if payload is not None:
        # The API expects a payload of type bytes.
        converted_payload = payload.encode()

        # Add the payload to the request.
        task["http_request"]["body"] = converted_payload

    # Use the client to build and send the task.
    response = client.create_task(request={"parent": parent, "task": task})

    print("Created task {}".format(response.name))
    return response


# [END cloud_tasks_create_http_task_with_token]
