# Copyright 2024 Google LLC
#
# 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.

"""A DAG to clean up idle accelerator resources."""

import datetime
from airflow import models
from dags import composer_env
from dags.common.vm_resource import Project, Zone
from xlml.utils import tpu


# Run every 10min
SCHEDULED_TIME = "*/10 * * * *" if composer_env.is_prod_env() else None


with models.DAG(
    dag_id="clean_up",
    schedule=SCHEDULED_TIME,
    tags=["solutions_team", "clean_up"],
    start_date=datetime.datetime(2024, 2, 22),
    catchup=False,
) as dag:
  # List tpu zones for projects to avoid permission issue
  tpu_zones = [
      Zone.US_CENTRAL1_A,
      Zone.US_CENTRAL1_B,
      Zone.US_CENTRAL2_B,
      Zone.US_CENTRAL1_C,
      Zone.US_EAST1_D,
  ]
  v5_tpu_zones = [
      Zone.US_EAST1_C,
      Zone.US_EAST5_A,
  ]

  # TPUs
  node_cloud_ml_auto_solutions = tpu.clean_up_idle_nodes.override(
      task_id="cleanup_nodes_cloud-ml-auto-solutions"
  )(Project.CLOUD_ML_AUTO_SOLUTIONS.value, tpu_zones)
  node_tpu_prod_env_automated = tpu.clean_up_idle_nodes.override(
      task_id="cleanup_nodes_tpu-prod-env-automated"
  )(Project.TPU_PROD_ENV_AUTOMATED.value, v5_tpu_zones)

  # QRs
  # clean up in tpu-prod-env-automated has been handled in script below:
  # https://source.corp.google.com/piper///depot/google3/cloud/tpu/tools/multipod/qr_tool/qr_delete.sh;l=32
  # No need to handle here to avoid `maximum number of DeleteNode requests per minute` error.
  qr_cloud_ml_auto_solutions = tpu.clean_up_idle_queued_resources.override(
      task_id="cleanup_qr_cloud-ml-auto-solutions"
  )(Project.CLOUD_ML_AUTO_SOLUTIONS.value, tpu_zones)

  # Overview dependency
  node_cloud_ml_auto_solutions >> qr_cloud_ml_auto_solutions
  node_tpu_prod_env_automated