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
#   - there was no update/comment on the PR in the last 30 days.

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

jobs:
  stale:

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

    steps:
      - uses: actions/stale@v8.0.0
        with:
          repo-token: ${{ secrets.GITHUB_TOKEN }}
          # Do not automatically mark PR/issue as stale
          days-before-stale: -1
          # Override 'days-before-stale' for PR only
          days-before-pr-stale: 30
          # Close PRs immediately, after marking them 'stale'
          days-before-pr-close: 0
          # only run the action on merge conflict PR
          any-of-labels: 'Merge Conflict'
          exempt-pr-labels: 'internal,never-stale,ON HOLD,in progress'
          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.'