name: Upstream sync

# DSH ships weekly. A language pack that is not re-measured against upstream
# quietly becomes "Arabic with English pockets", which is how most community
# packs die. This job runs the extractor on a schedule and opens a pull request
# containing only the new keys, so the drift is a reviewable diff instead of a
# surprise.

on:
  schedule:
    - cron: '0 6 * * 1' # Mondays, 06:00 UTC
  workflow_dispatch:

permissions:
  contents: write
  pull-requests: write

jobs:
  sync:
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v4

      - uses: actions/setup-node@v4
        with:
          node-version: '24'

      - name: Install exact dependencies
        run: npm ci

      - name: Re-extract the official key set
        env:
          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
        run: npm run extract

      - name: Coverage against the new revision
        run: node scripts/status.mjs || true

      - name: Open a pull request when upstream added or changed keys
        env:
          GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
        run: |
          if git diff --quiet -- data/en-catalog.json; then
            echo "upstream key set unchanged" >> "$GITHUB_STEP_SUMMARY"
            exit 0
          fi
          git config user.name "github-actions[bot]"
          git config user.email "41898282+github-actions[bot]@users.noreply.github.com"
          branch="upstream-sync/$(date -u +%Y%m%d-%H%M%S)-${{ github.run_id }}"
          git checkout -b "$branch"
          git add data/
          git commit -m "chore(upstream): refresh the English key set"
          git push origin "$branch"
          node scripts/status.mjs > status.txt || true
          {
            echo "The official sources changed since the last extraction."
            echo
            echo "New keys are untranslated for now - they fall back to English at runtime,"
            echo "so this diff is safe to merge and then translate at leisure:"
            echo
            echo '```'
            cat status.txt
            echo '```'
          } > pr-body.md
          gh pr create \
            --title "chore(upstream): refresh the English key set" \
            --body-file pr-body.md \
            --base main \
            --head "$branch"