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from __future__ import annotations

import os
from datetime import datetime

from airflow.models import DAG
from airflow.providers.microsoft.azure.operators.wasb_delete_blob import WasbDeleteBlobOperator
from airflow.providers.microsoft.azure.transfers.local_to_wasb import LocalFilesystemToWasbOperator

PATH_TO_UPLOAD_FILE = os.environ.get("AZURE_PATH_TO_UPLOAD_FILE", "example-text.txt")
ENV_ID = os.environ.get("SYSTEM_TESTS_ENV_ID")
DAG_ID = "example_local_to_wasb"
AZURE_CONTAINER_NAME = os.environ.get("AZURE_CONTAINER_NAME", "mycontainer")
AZURE_BLOB_NAME = os.environ.get("AZURE_BLOB_NAME", "myblob")

with DAG(
    DAG_ID,
    schedule="@once",
    start_date=datetime(2021, 1, 1),
    catchup=False,
) as dag:
    # [START howto_operator_local_to_wasb]
    upload = LocalFilesystemToWasbOperator(
        task_id="upload_file",
        file_path=PATH_TO_UPLOAD_FILE,
        container_name=AZURE_CONTAINER_NAME,
        blob_name=AZURE_BLOB_NAME,
    )
    # [END howto_operator_local_to_wasb]
    delete = WasbDeleteBlobOperator(
        task_id="delete_file", blob_name=AZURE_BLOB_NAME, container_name=AZURE_CONTAINER_NAME
    )

    upload >> delete

    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)
