name: Security Scan

on:
  push:
    branches:
      - main
  pull_request:
    branches: 
      - main
  workflow_dispatch:

jobs:
  scan:
    runs-on: ubuntu-latest
    permissions:
      contents: write
      security-events: write
      actions: read
    env:
      SECURITY_SNYK_TOKEN: ${{ secrets.SECURITY_SNYK_TOKEN }}
      FORCE_JAVASCRIPT_ACTIONS_TO_NODE24: true
    steps:
      - uses: actions/checkout@v4
        with:
          fetch-depth: 0

      - name: Initialize CodeQL
        if: env.ACT != 'true'
        continue-on-error: true
        uses: github/codeql-action/init@v4
        with:
          languages: javascript-typescript, actions
          build-mode: none
          queries: security-extended,security-and-quality

      - name: Perform CodeQL Analysis
        if: env.ACT != 'true'
        continue-on-error: true
        uses: github/codeql-action/analyze@v4
        with:
          upload: true
          output: sarif-results

      - name: Secret Detection
        id: gitleaks
        uses: gitleaks/gitleaks-action@ff98106e4c7b2bc287b24eaf42907196329070c7
        continue-on-error: true
        env:
          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}

      - name: Install Project Dependencies
        if: env.SECURITY_SNYK_TOKEN != ''
        continue-on-error: true
        env:
          SECURITY_PACKAGE: ${{ vars.SECURITY_PACKAGE || secrets.SECURITY_PACKAGE || env.SECURITY_PACKAGE || '' }}
        run: |
          echo "Preparing dependency lock files for security scanning..."
          if [ -z "$SECURITY_PACKAGE" ]; then
            echo "SECURITY_PACKAGE is empty, installing in root..."
            npm install --package-lock-only --legacy-peer-deps
          else
            echo "SECURITY_PACKAGE is set to: $SECURITY_PACKAGE"
            # Split by comma and install
            IFS=',' read -ra PACKAGES <<< "$SECURITY_PACKAGE"
            for pkg in "${PACKAGES[@]}"; do
              if [ -d "$pkg" ]; then
                echo "Installing in "$pkg"..."
                npm install --prefix "$pkg" --package-lock-only --legacy-peer-deps
              else
                echo "Warning: Directory $pkg not found, skipping."
              fi
            done
          fi

      - name: Dependency Scan
        id: snyk
        if: env.SECURITY_SNYK_TOKEN != ''
        continue-on-error: true
        run: |
          npm install -g snyk          
          snyk auth ${{ secrets.SECURITY_SNYK_TOKEN }}
          snyk test --all-projects --json-file-output=snyk_result.json > snyk_result.txt || true
        env:
          SECURITY_SNYK_TOKEN: ${{ secrets.SECURITY_SNYK_TOKEN }}

      - name: Check for Dockerfile
        id: check_docker
        run: |
          if [ -f "Dockerfile" ]; then
            echo "exists=true" >> $GITHUB_OUTPUT
          else
            echo "exists=false" >> $GITHUB_OUTPUT
          fi

      - name: Container Security Scan (Trivy)
        if: steps.check_docker.outputs.exists == 'true'
        continue-on-error: true
        uses: aquasecurity/trivy-action@b2933f565dbc598b29947660e66259e3c7bc8561 # v0.20.0
        with:
          scan-type: config
          scan-ref: .
          format: json
          output: trivy_result.json
          severity: CRITICAL,HIGH

      - name: Generate Security Report
        if: always()
        env:
          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
        run: |
          # Gitleaks typically produces results.sarif if configured or by default in some versions
          # We'll ensure it exists for our reporter
          node .github/scripts/security.cjs
          
          # Also append to step summary for immediate visibility in GHA UI
          cat README.md >> $GITHUB_STEP_SUMMARY
          echo -e "\n---\n" >> $GITHUB_STEP_SUMMARY
          cat README_CN.md >> $GITHUB_STEP_SUMMARY

      - name: Upload Gitleaks Results to GitHub Security
        uses: github/codeql-action/upload-sarif@v4
        if: always()
        with:
          sarif_file: results.sarif
          category: gitleaks

      - name: Push to Audit Branch
        if: always() && github.event_name != 'pull_request'
        run: |
          mkdir audit_temp
          cp README.md audit_temp/
          cp README_CN.md audit_temp/
          [ -f "snyk_result.txt" ] && cp snyk_result.txt audit_temp/
          [ -f "snyk_result.json" ] && cp snyk_result.json audit_temp/
          
          # Collect all SARIF files with descriptive names
          [ -f "results.sarif" ] && cp results.sarif audit_temp/Gitleaks_results.sarif
          if [ -d "sarif-results" ]; then
            for f in sarif-results/*.sarif; do
              [ -f "$f" ] && cp "$f" "audit_temp/CodeQL_$(basename "$f")"
            done
          fi
          
          cd audit_temp
          git init
          git config user.name "github-actions[bot]"
          git config user.email "41898282+github-actions[bot]@users.noreply.github.com"
          git checkout --orphan security-audit
          
          git add .
          git commit -m "chore: archive security report and raw data [skip ci]"
          git remote add origin https://x-access-token:${{ secrets.GITHUB_TOKEN }}@github.com/${{ github.repository }}
          git push -f origin security-audit