# Secure GitHub Actions Workflow with Webhook Secret
# Place this file in your EDR-Telemetry repository at:
# .github/workflows/update-database.yml
#
# Supabase tables:
#   Windows: windows_table_results, windows_telemetry
#   Linux:   linux_table_results, linux_telemetry
#   macOS:   macos_table_results, macos_telemetry

name: Update EDR Telemetry Database (Secure)

on:
  push:
    branches: [ main ]
    paths:
      - 'EDR_telem_windows.json'
      - 'EDR_telem_linux.json'
      - 'EDR_telem_macOS.json'
      - 'partially_value_explanations_windows.json'
      - 'partially_value_explanations_linux.json'
      - 'partially_value_explanations_macOS.json'
      - '.github/workflows/github-actions-secure.yml'
      - 'Tools/CloudFunction/**'
  
  # Allow manual triggering for explicit database refreshes
  workflow_dispatch:
    inputs:
      platform:
        description: 'Platform to update (windows, linux, macos, all)'
        required: false
        default: 'all'
        type: choice
        options:
        - all
        - windows
        - linux
        - macos

jobs:
  update-database:
    runs-on: ubuntu-latest
    name: Update Database via Cloud Function
    
    steps:
    - name: Generate Webhook Signature
      id: signature
      run: |
        echo "🔐 Generating webhook signature for secure authentication"
        
        # Prepare the payload
        PAYLOAD=$(cat <<EOF
        {
          "source": "github_actions",
          "repository": "${{ github.repository }}",
          "ref": "${{ github.ref }}",
          "sha": "${{ github.sha }}",
          "actor": "${{ github.actor }}",
          "workflow": "${{ github.workflow }}",
          "run_id": "${{ github.run_id }}",
          "triggered_at": "$(date -u +%Y-%m-%dT%H:%M:%SZ)"
        }
        EOF
        )
        
        # Generate HMAC-SHA256 signature
        SIGNATURE=$(echo -n "$PAYLOAD" | openssl dgst -sha256 -hmac "${{ secrets.WEBHOOK_SECRET }}" | sed 's/^.* //')
        
        # Set outputs for next step
        echo "payload<<EOF" >> $GITHUB_OUTPUT
        echo "$PAYLOAD" >> $GITHUB_OUTPUT
        echo "EOF" >> $GITHUB_OUTPUT
        echo "signature=sha256=$SIGNATURE" >> $GITHUB_OUTPUT
      env:
        # This secret must be set in GitHub repository settings
        WEBHOOK_SECRET: ${{ secrets.WEBHOOK_SECRET }}
    
    - name: Trigger Database Update
      run: |
        echo "🚀 Triggering secure database update for platform: ${{ github.event.inputs.platform || 'all' }}"
        
        # Make the authenticated request
        RESPONSE=$(curl -s -w "\n%{http_code}" -X POST \
          "${{ secrets.CLOUD_FUNCTION_URL }}?platform=${{ github.event.inputs.platform || 'all' }}" \
          -H "Content-Type: application/json" \
          -H "X-GitHub-Event: ${{ github.event_name }}" \
          -H "X-Hub-Signature-256: ${{ steps.signature.outputs.signature }}" \
          -d '${{ steps.signature.outputs.payload }}')
        
        # Extract HTTP status code and response body
        HTTP_CODE=$(echo "$RESPONSE" | tail -n1)
        RESPONSE_BODY=$(echo "$RESPONSE" | sed '$d')
        
        echo "📊 Response Status: $HTTP_CODE"
        echo "📄 Response Body:"
        echo "$RESPONSE_BODY" | jq '.' 2>/dev/null || echo "$RESPONSE_BODY"
        
        RESPONSE_STATUS=$(echo "$RESPONSE_BODY" | jq -r '.status // "unknown"' 2>/dev/null || echo "unknown")
        RESPONSE_ERRORS=$(echo "$RESPONSE_BODY" | jq -r '
          (([.errors[]?] | length) +
          ([.windows_stats?.errors, .linux_stats?.errors, .macos_stats?.errors] | map(. // 0) | add))
        ' 2>/dev/null || echo "1")
        
        # Check if every requested platform update was successful.
        if [ "$HTTP_CODE" -eq 200 ] && [ "$RESPONSE_STATUS" = "success" ] && [ "$RESPONSE_ERRORS" -eq 0 ]; then
          echo "✅ Database update completed successfully"
          
          # Parse and display statistics if available
          WINDOWS_UPDATED=$(echo "$RESPONSE_BODY" | jq -r '.windows_stats.scores_updated // 0' 2>/dev/null || echo "0")
          LINUX_UPDATED=$(echo "$RESPONSE_BODY" | jq -r '.linux_stats.scores_updated // 0' 2>/dev/null || echo "0")
          MACOS_UPDATED=$(echo "$RESPONSE_BODY" | jq -r '.macos_stats.scores_updated // 0' 2>/dev/null || echo "0")
          DURATION=$(echo "$RESPONSE_BODY" | jq -r '.duration_seconds // 0' 2>/dev/null || echo "0")
          
          echo "📈 Update Statistics:"
          echo "   Windows scores updated: $WINDOWS_UPDATED"
          echo "   Linux scores updated: $LINUX_UPDATED"
          echo "   macOS scores updated: $MACOS_UPDATED"
          echo "   Duration: ${DURATION}s"
          
        elif [ "$HTTP_CODE" -eq 401 ]; then
          echo "❌ Authentication failed - check WEBHOOK_SECRET"
          echo "💡 Make sure the WEBHOOK_SECRET in GitHub matches your Cloud Function"
          exit 1
        else
          echo "❌ Database update failed"
          echo "   HTTP status: $HTTP_CODE"
          echo "   Response status: $RESPONSE_STATUS"
          echo "   Error count: $RESPONSE_ERRORS"
          exit 1
        fi
      env:
        # These secrets must be set in GitHub repository settings:
        # Settings → Secrets and variables → Actions → New repository secret
        CLOUD_FUNCTION_URL: ${{ secrets.CLOUD_FUNCTION_URL }}
    
    - name: Notify on Success
      if: success()
      run: |
        echo "🎉 Database update completed successfully!"
        echo "📋 Summary:"
        echo "   Repository: ${{ github.repository }}"
        echo "   Branch: ${{ github.ref_name }}"
        echo "   Commit: ${{ github.sha }}"
        echo "   Actor: ${{ github.actor }}"
        echo "   Platform: ${{ github.event.inputs.platform || 'all' }}"
    
    - name: Notify on Failure
      if: failure()
      run: |
        echo "💥 Database update failed!"
        echo "🔍 Troubleshooting steps:"
        echo "   1. Verify CLOUD_FUNCTION_URL is correct in repository secrets"
        echo "   2. Check WEBHOOK_SECRET matches between GitHub and Cloud Function"
        echo "   3. Ensure Cloud Function is deployed and accessible"
        echo "   4. Verify Supabase database is operational"
        echo "   5. Review Cloud Function logs in GCP Console:"
        echo "      gcloud functions logs read edr-telemetry-updater --region=us-central1"

# Optional: Add Slack notification job
# uncomment and configure if you want Slack notifications
#  notify-slack:
#    needs: update-database
#    runs-on: ubuntu-latest
#    if: always()
#    steps:
#    - name: Notify Slack
#      uses: 8398a7/action-slack@v3
#      with:
#        status: ${{ needs.update-database.result }}
#        text: |
#          EDR Telemetry Database Update: ${{ needs.update-database.result }}
#          Repository: ${{ github.repository }}
#          Commit: ${{ github.sha }}
#          Actor: ${{ github.actor }}
#      env:
#        SLACK_WEBHOOK_URL: ${{ secrets.SLACK_WEBHOOK_URL }}