name: Close stale PR
# This action will add a `stale` label and close immediately every PR that meets the following conditions:
#   - it is already marked with "merge conflict" label
#   - the "merge conflict" label was added more than 30 days before.

on:
  schedule:
    - cron: '0 10 * * *'
  workflow_dispatch:

jobs:
  stale:

    runs-on: ubuntu-latest
    permissions:
      issues: write
      pull-requests: write

    steps:
      - uses: actions/stale@v7.0.0
        with:
          repo-token: ${{ secrets.GITHUB_TOKEN }}
          # Do not mark a PR as stale
          days-before-stale: -1
          days-before-pr-stale: 30
          days-before-pr-close: 0
          # only run the action on merge conflict PR
          any-of-labels: 'PR: Merge Conflict'
          exempt-pr-labels: 'internal, never-stale, ON HOLD, WIP'
          exempt-all-pr-assignees: true
          operations-per-run: 300
          stale-pr-message: ''
          close-pr-message: 'Existing merge conflicts have not been addressed. This PR is considered abandoned.'