name: Scheduled Maintenance

on:
  schedule:
    # Runs after the 04:00 CPython sync so the status table and headers
    # reflect today's msgids instead of yesterday's.
    - cron: '0 5 * * *'
  workflow_dispatch: {}

permissions:
  contents: write
  issues: write
  pull-requests: read

# Shared with sync-cpython.yml so the two never push at the same time.
concurrency:
  group: repo-writes
  cancel-in-progress: false

jobs:
  maintenance:
    runs-on: ubuntu-latest
    timeout-minutes: 30
    steps:
      - uses: actions/checkout@v4
        with:
          fetch-depth: 0   # needed if team_stats/contributor_chart read git history

      - name: Set up Python
        uses: actions/setup-python@v4
        with:
          python-version: '3.12'

      - name: Install dependencies
        run: pip install polib matplotlib

      - name: Update translation status table
        run: python3 scripts/generate_status_table.py

      - name: Update PO file headers
        run: python3 scripts/update_po_headers.py --merge --no-last-translator

      - name: Update TEAM.md contributor counts
        run: python3 scripts/team_stats.py --update-teammd

      - name: Update contributor chart and README stats block
        run: python3 scripts/contributor_chart.py

      - name: Update master issue with pending review items
        env:
          GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
          MASTER_ISSUE: '83'
        run: python3 scripts/update_master_issue.py

      - name: Stage changes
        run: git add --all

      # Drops .po files whose only change is POT-Creation-Date.
      - name: Unstage POT-Creation-Date-only changes
        run: python3 scripts/unstage_cosmetic.py

      - name: Commit and push if changed
        run: |
          git config user.name "github-actions[bot]"
          git config user.email "github-actions[bot]@users.noreply.github.com"
          if git diff --staged --quiet; then
            echo "No changes to commit"
            exit 0
          fi
          git commit -m "chore: update translation status, PO headers, team credits, and contributor chart"
          git pull --rebase
          git push