# Secrets Scanning Workflow
# Sprint: CI/CD Enhancement - Security Scanning
#
# Purpose: Detect hardcoded secrets, API keys, and credentials in code
# Triggers: Push to main/develop, all PRs
#
# Tool: PLACEHOLDER - Choose one: TruffleHog, Gitleaks, or Semgrep

name: Secrets Scanning

on:
  push:
    branches: [main, develop]
  pull_request:
  workflow_dispatch:
    inputs:
      scan_history:
        description: 'Scan full git history'
        required: false
        type: boolean
        default: false

jobs:
  secrets-scan:
    name: Scan for Secrets
    runs-on: ubuntu-latest

    steps:
      - name: Checkout repository
        uses: actions/checkout@v4
        with:
          fetch-depth: ${{ github.event.inputs.scan_history == 'true' && 0 || 50 }}

      # PLACEHOLDER: Choose your secrets scanner
      # Option 1: TruffleHog (recommended - comprehensive, low false positives)
      # Option 2: Gitleaks (fast, good for CI)
      # Option 3: Semgrep (if already using for SAST)

      - name: TruffleHog Scan
        id: trufflehog
        # Uncomment when ready to use TruffleHog:
        # uses: trufflesecurity/trufflehog@main
        # with:
        #   extra_args: --only-verified
        run: |
          echo "::notice::Secrets scanning placeholder - configure scanner below"
          echo ""
          echo "Available options:"
          echo "  1. TruffleHog: trufflesecurity/trufflehog@main"
          echo "  2. Gitleaks: gitleaks/gitleaks-action@v2"
          echo "  3. Semgrep: returntocorp/semgrep-action@v1"
          echo ""
          echo "To enable, uncomment the appropriate action above"

      # Alternative: Gitleaks
      # - name: Gitleaks Scan
      #   uses: gitleaks/gitleaks-action@v2
      #   env:
      #     GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
      #     GITLEAKS_LICENSE: ${{ secrets.GITLEAKS_LICENSE }}

      # Alternative: Semgrep (secrets rules)
      # - name: Semgrep Secrets Scan
      #   uses: returntocorp/semgrep-action@v1
      #   with:
      #     config: p/secrets

      - name: Upload scan results
        if: always()
        uses: actions/upload-artifact@v4
        with:
          name: secrets-scan-results
          path: |
            **/trufflehog-*.json
            **/gitleaks-*.json
            **/semgrep-*.json
          retention-days: 30
          if-no-files-found: ignore

  summary:
    name: Scan Summary
    runs-on: ubuntu-latest
    needs: [secrets-scan]
    if: always()

    steps:
      - name: Generate summary
        run: |
          echo "## Secrets Scanning Results" >> $GITHUB_STEP_SUMMARY
          echo "" >> $GITHUB_STEP_SUMMARY

          if [[ "${{ needs.secrets-scan.result }}" == "success" ]]; then
            echo "### No secrets detected" >> $GITHUB_STEP_SUMMARY
          elif [[ "${{ needs.secrets-scan.result }}" == "failure" ]]; then
            echo "### Secrets detected - review required" >> $GITHUB_STEP_SUMMARY
            echo "" >> $GITHUB_STEP_SUMMARY
            echo "Please review the scan artifacts for details." >> $GITHUB_STEP_SUMMARY
          else
            echo "### Scan status: ${{ needs.secrets-scan.result }}" >> $GITHUB_STEP_SUMMARY
          fi

          echo "" >> $GITHUB_STEP_SUMMARY
          echo "**Scanner:** Placeholder (configure in workflow)" >> $GITHUB_STEP_SUMMARY
          echo "**Trigger:** ${{ github.event_name }}" >> $GITHUB_STEP_SUMMARY
          echo "**Branch:** ${{ github.ref_name }}" >> $GITHUB_STEP_SUMMARY