name: '🦠 VirusTotal Scan'

on:
    workflow_dispatch:
    push:
      branches:
        - 'main'
      tags:
        - 'v*'

jobs:
  build:
    runs-on: ubuntu-latest
    permissions:
      contents: write
    steps:
      - name: '📦 Checkout'
        uses: actions/checkout@v6

      - name: '🔍 Download PDF artifacts from build workflow'
        uses: actions/download-artifact@v7
        with:
          pattern: light-pdf-files,dark-pdf-files
          path: pdfs
          merge-multiple: true

      - name: '🦠 Scan PDF files using VT'
        uses: crazy-max/ghaction-virustotal@v5
        with:
          vt_api_key: ${{ secrets.VT_API_KEY }}
          update_release_body: false  # We'll handle this manually in the next step
          files: |
            ./pdfs/thgtoa.pdf
            ./pdfs/thgtoa-dark.pdf

      - name: '📊 Extract VT scan results'
        id: vt-scan
        run: |
          echo "scan completed" >> $GITHUB_OUTPUT

      - name: '🔗 Generate VT report links'
        run: |
          # Create a markdown file with VT scan results and links
          cat > vt-results.md << EOF
          ## VirusTotal Scan Results

          **Scan Date:** $(date -u +"%Y-%m-%d %H:%M UTC")

          ### thgtoa.pdf (Light Mode)
          - **VT Report:** https://www.virustotal.com/gui/file/$(sha256sum pdfs/thgtoa.pdf | cut -d' ' -f1)

          ### thgtoa-dark.pdf (Dark Mode)
          - **VT Report:** https://www.virustotal.com/gui/file/$(sha256sum pdfs/thgtoa-dark.pdf | cut -d' ' -f1)

          ---
          *Scan performed automatically by GitHub Actions*
          EOF

      - name: '📝 Update release with VT results (if tag exists)'
        if: startsWith(github.ref, 'refs/tags/')
        env:
          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
          GH_REPO: ${{ github.repository }}
        run: |
          # Get the latest release notes
          RELEASE_NOTES=$(gh release view ${{ github.ref_name }} --json body --jq .body 2>/dev/null || echo "")

          # Append VT results to release notes
          if [ -n "$RELEASE_NOTES" ]; then
            echo "" >> vt-results.md
            echo "---" >> vt-results.md
            echo "### Previous Release Notes" >> vt-results.md
            echo "$RELEASE_NOTES" >> vt-results.md
          fi

          # Update the release with VT results
          gh release edit ${{ github.ref_name }} --notes-file vt-results.md