# 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.

# This workflow labels and then closes stale PRs that haven't seen attention
# for several months.

name: Stale PRs
on:
  schedule:
    #- cron: '15 6 * * *' # Run once a day at 6:15 UTC
    - cron: '0 */6 * * *' # Initially we run every 6 hours until we have reached steady state
  workflow_dispatch:
    inputs:
      operationsPerRun:
        description: 'Max GitHub API operations'
        required: true
        default: 200 # Initially we set this at a high level to clear the backlog
        type: number

permissions:
  issues: write
  pull-requests: write

jobs:
  stale:
    runs-on: ubuntu-latest
    steps:
      - uses: actions/stale@v9
        with:
          operations-per-run: ${{ inputs.operationsPerRun || 500 }}
          ascending: true
          days-before-stale: 180 # This should eventually be reduced to 90
          days-before-close: 90  # This should eventually be reduced to 30
          stale-pr-label: 'stale'
          stale-pr-message: |
            This PR is being marked as stale since it has not had any activity in the last 180 days. 
            If you would like to keep this PR alive, please leave a comment asking for a review. 
            If the PR has merge conflicts, update it with the latest from the base branch.

            If you are having difficulty finding a reviewer, please reach out to the 
            community, contact details can be found here: https://flink.apache.org/what-is-flink/community/

            If this PR is no longer valid or desired, please feel free to close it. 
            If no activity occurs in the next 90 days, it will be automatically closed.
          close-pr-label: 'closed-stale'
          close-pr-message: |
            This PR has been closed since it has not had any activity in 270 days. 
            If you feel like this was a mistake, or you would like to continue working on it, 
            please feel free to re-open the PR and ask for a review.