name: Sync PoC-in-GitHub

on:
  schedule:
    - cron: '10 5 * * *'
  workflow_dispatch:

permissions:
  contents: write
  actions: write

concurrency:
  group: repository-updates
  queue: max
  cancel-in-progress: false

jobs:
  sync:
    runs-on: ubuntu-latest
    timeout-minutes: 30
    steps:
      - name: Checkout repository
        uses: actions/checkout@v7
        with:
          ref: main

      - name: Set up Python
        uses: actions/setup-python@v7
        with:
          python-version: '3.13'

      # Every candidate is judged again each day rather than remembered as
      # rejected: a repository that was an empty shell in March is often a
      # working exploit by June, and re-reading 6,800 of them costs five
      # minutes. Daily because the collection keeps finding repositories our
      # own search missed.
      - name: Judge upstream PoC candidates
        env:
          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
        run: python3 scripts/sync_pocingithub.py

      - name: Verify the generated index
        run: |
          python3 -m unittest discover -s tests
          python3 scripts/build_site.py

      - name: Refresh published counts
        run: |
          python3 .github/hero.py
          python3 .github/getTrending.py --counts-only

      - name: Check for changes and commit
        id: commit
        run: |
          git config user.name 'CVE-BOT'
          git config user.email 'bot@pocindex.io'
          git add --all -- \
            README.md \
            docs/hero.svg \
            docs/social-card.svg \
            docs/stats.json \
            docs/kev.svg \
            index/github.txt \
            index/cve_dates.json \
            index/cve_record_state.json \
            cves/

          if git diff --cached --quiet; then
            echo "No changes to commit"
            exit 0
          fi

          git commit -m "Add PoC repositories from upstream collection $(date -u +'%Y-%m-%d')"

          for attempt in 1 2 3; do
            if git push origin HEAD:main; then
              echo "pushed=true" >> "$GITHUB_OUTPUT"
              exit 0
            fi
            echo "Push rejected; replaying onto the current main (attempt $attempt)"
            git fetch --unshallow origin main 2>/dev/null || git fetch origin main
            git rebase FETCH_HEAD || { git rebase --abort; exit 1; }
          done
          exit 1

      # Commits pushed with the workflow token raise no push event, so site.yml
      # would otherwise wait for its daily schedule. Dispatching is exempt.
      - name: Rebuild and deploy the site
        if: steps.commit.outputs.pushed == 'true'
        env:
          GH_TOKEN: ${{ github.token }}
        run: gh workflow run site.yml --ref main