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# 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
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from __future__ import annotations

import os
from datetime import datetime

from airflow import models
from airflow.models.baseoperator import chain
from airflow.providers.google.cloud.operators.cloud_composer import (
    CloudComposerCreateEnvironmentOperator,
    CloudComposerDeleteEnvironmentOperator,
    CloudComposerGetEnvironmentOperator,
    CloudComposerListEnvironmentsOperator,
    CloudComposerListImageVersionsOperator,
    CloudComposerUpdateEnvironmentOperator,
)
from airflow.utils.trigger_rule import TriggerRule

ENV_ID = os.environ.get("SYSTEM_TESTS_ENV_ID")
PROJECT_ID = os.environ.get("SYSTEM_TESTS_GCP_PROJECT")

DAG_ID = "example_composer"

REGION = "us-central1"

# [START howto_operator_composer_simple_environment]

ENVIRONMENT_ID = f"test-{DAG_ID}-{ENV_ID}".replace("_", "-")

ENVIRONMENT = {
    "config": {
        "software_config": {"image_version": "composer-2.0.28-airflow-2.2.5"},
    }
}
# [END howto_operator_composer_simple_environment]

# [START howto_operator_composer_update_environment]
UPDATED_ENVIRONMENT = {
    "labels": {
        "label1": "testing",
    }
}
UPDATE_MASK = {"paths": ["labels.label1"]}
# [END howto_operator_composer_update_environment]


with models.DAG(
    DAG_ID,
    schedule="@once",
    start_date=datetime(2021, 1, 1),
    catchup=False,
    tags=["example", "composer"],
) as dag:
    # [START howto_operator_composer_image_list]
    image_versions = CloudComposerListImageVersionsOperator(
        task_id="image_versions",
        project_id=PROJECT_ID,
        region=REGION,
    )
    # [END howto_operator_composer_image_list]

    # [START howto_operator_create_composer_environment]
    create_env = CloudComposerCreateEnvironmentOperator(
        task_id="create_env",
        project_id=PROJECT_ID,
        region=REGION,
        environment_id=ENVIRONMENT_ID,
        environment=ENVIRONMENT,
    )
    # [END howto_operator_create_composer_environment]

    # [START howto_operator_list_composer_environments]
    list_envs = CloudComposerListEnvironmentsOperator(
        task_id="list_envs", project_id=PROJECT_ID, region=REGION
    )
    # [END howto_operator_list_composer_environments]

    # [START howto_operator_get_composer_environment]
    get_env = CloudComposerGetEnvironmentOperator(
        task_id="get_env",
        project_id=PROJECT_ID,
        region=REGION,
        environment_id=ENVIRONMENT_ID,
    )
    # [END howto_operator_get_composer_environment]

    # [START howto_operator_update_composer_environment]
    update_env = CloudComposerUpdateEnvironmentOperator(
        task_id="update_env",
        project_id=PROJECT_ID,
        region=REGION,
        environment_id=ENVIRONMENT_ID,
        update_mask=UPDATE_MASK,
        environment=UPDATED_ENVIRONMENT,
    )
    # [END howto_operator_update_composer_environment]

    # [START howto_operator_delete_composer_environment]
    delete_env = CloudComposerDeleteEnvironmentOperator(
        task_id="delete_env",
        project_id=PROJECT_ID,
        region=REGION,
        environment_id=ENVIRONMENT_ID,
    )
    # [END howto_operator_delete_composer_environment]
    delete_env.trigger_rule = TriggerRule.ALL_DONE

    chain(image_versions, create_env, list_envs, get_env, update_env, delete_env)

    from tests.system.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.system.utils import get_test_run  # noqa: E402

# Needed to run the example DAG with pytest (see: tests/system/README.md#run_via_pytest)
test_run = get_test_run(dag)
