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# distributed with this work for additional information
# regarding copyright ownership.  The ASF licenses this file
# to you 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 annotations

from datetime import datetime

from airflow.providers.amazon.aws.operators.s3 import S3CreateBucketOperator, S3DeleteBucketOperator
from airflow.providers.amazon.aws.transfers.http_to_s3 import HttpToS3Operator

try:
    from airflow.providers.standard.operators.bash import BashOperator
except ImportError:
    # Fallback for older Airflow versions
    from airflow.operators.bash import BashOperator  # type: ignore[no-redef]

from tests_common.test_utils.api_client_helpers import make_authenticated_rest_api_request
from tests_common.test_utils.version_compat import AIRFLOW_V_3_0_PLUS

if AIRFLOW_V_3_0_PLUS:
    from airflow.sdk import DAG, chain, task
else:
    # Airflow 2.10 compat
    from airflow.decorators import task  # type: ignore[attr-defined,no-redef]
    from airflow.models.baseoperator import chain  # type: ignore[attr-defined,no-redef]
    from airflow.models.dag import DAG  # type: ignore[attr-defined,no-redef,assignment]
try:
    from airflow.sdk import TriggerRule
except ImportError:
    # Compatibility for Airflow < 3.1
    from airflow.utils.trigger_rule import TriggerRule  # type: ignore[no-redef,attr-defined]

from system.amazon.aws.utils import SystemTestContextBuilder

sys_test_context_task = SystemTestContextBuilder().build()

DAG_ID = "example_http_to_s3"

cmd = """
#!/bin/bash

echo 'foo' > /tmp/test_file

cd /tmp

nohup python3 -m http.server 8083 > /dev/null 2>&1 &

echo $!
sleep 2
exit 0
"""


@task
def create_connection(conn_id_name: str):
    make_authenticated_rest_api_request(
        path="/api/v2/connections",
        method="POST",
        body={
            "connection_id": conn_id_name,
            "conn_type": "http",
            "host": "localhost",
            "port": 8083,
        },
    )


with DAG(
    DAG_ID,
    schedule="@once",
    start_date=datetime(2021, 1, 1),
    catchup=False,
) as dag:
    test_context = sys_test_context_task()
    env_id = test_context["ENV_ID"]

    conn_id_name = f"{env_id}-conn-id"
    s3_bucket = f"{env_id}-http-to-s3-bucket"
    s3_key = f"{env_id}-http-to-s3-key"

    create_s3_bucket = S3CreateBucketOperator(task_id="create_s3_bucket", bucket_name=s3_bucket)

    set_up_connection = create_connection(conn_id_name)

    start_server = BashOperator(bash_command=cmd, task_id="start_server")

    # [START howto_transfer_http_to_s3]
    http_to_s3_task = HttpToS3Operator(
        task_id="http_to_s3_task",
        http_conn_id=conn_id_name,
        endpoint="/test_file",
        s3_bucket=s3_bucket,
        s3_key=s3_key,
        replace=True,
    )
    # [END howto_transfer_http_to_s3]

    stop_server = BashOperator(
        task_id="stop_simple_http_server",
        bash_command='kill {{ti.xcom_pull(task_ids="start_server")}}',
        trigger_rule=TriggerRule.ALL_DONE,
    )

    delete_s3_bucket = S3DeleteBucketOperator(
        task_id="delete_s3_bucket",
        bucket_name=s3_bucket,
        force_delete=True,
        trigger_rule=TriggerRule.ALL_DONE,
    )

    chain(
        # TEST SETUP
        test_context,
        create_s3_bucket,
        set_up_connection,
        start_server,
        # TEST BODY
        http_to_s3_task,
        # TEST TEARDOWN
        stop_server,
        delete_s3_bucket,
    )

    from tests_common.test_utils.watcher import watcher

    # This test needs watcher in order to properly mark success/failure
    # when "tearDown" task with trigger rule is part of the DAG
    list(dag.tasks) >> watcher()

from tests_common.test_utils.system_tests import get_test_run  # noqa: E402

# Needed to run the example DAG with pytest (see: contributing-docs/testing/system_tests.rst)
test_run = get_test_run(dag)
