# Licensed to the Apache Software Foundation (ASF) under one
# or more contributor license agreements.  See the NOTICE file
# 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 airflow.providers.common.compat.sdk import AirflowPlugin
from airflow.providers.openlineage import conf

# Conditional imports - only load expensive dependencies when plugin is enabled
if not conf.is_disabled():
    from airflow.providers.common.compat.sdk import HookLineageReader
    from airflow.providers.openlineage.plugins.listener import get_openlineage_listener
    from airflow.providers.openlineage.plugins.macros import (
        lineage_job_name,
        lineage_job_namespace,
        lineage_parent_id,
        lineage_root_job_name,
        lineage_root_job_namespace,
        lineage_root_parent_id,
        lineage_root_run_id,
        lineage_run_id,
    )


class OpenLineageProviderPlugin(AirflowPlugin):
    """
    Listener that emits numerous Events.

    OpenLineage Plugin provides listener that emits OL events on DAG start,
    complete and failure and TaskInstances start, complete and failure.
    """

    name = "OpenLineageProviderPlugin"
    if not conf.is_disabled():
        macros = [
            lineage_job_namespace,
            lineage_job_name,
            lineage_run_id,
            lineage_parent_id,
            lineage_root_run_id,
            lineage_root_job_name,
            lineage_root_job_namespace,
            lineage_root_parent_id,
        ]
        listeners = [get_openlineage_listener()]
        hook_lineage_readers = [HookLineageReader]
    else:
        macros = []
        listeners = []
