name: Trivy Vulnerability Scanner

permissions: {}

on:
  pull_request:
    branches:
      - develop
  push:
    branches:
      - develop
  merge_group:
    types: [checks_requested]

jobs:
  scan:
    name: Scan for Vulnerabilities
    runs-on: ubuntu-latest
    permissions:
      issues: write
      contents: read
      security-events: write
    steps:
      - name: Checkout code
        uses: actions/checkout@v6.0.2

      - name: Install Trivy
        run: |
          curl -sfL https://raw.githubusercontent.com/aquasecurity/trivy/main/contrib/install.sh | sh -s -- -b /usr/local/bin

      - name: Run Trivy scan
        id: trivy-scan
        continue-on-error: true
        run: |
          # Generate SARIF report first
          trivy fs \
            --format template \
            --template '@/contrib/sarif.tpl' \
            --output trivy-results.sarif \
            --severity CRITICAL,HIGH \
            --vuln-type os,library \
            --no-progress .

          # Generate JSON report and fail step if vulnerabilities are found
          trivy fs \
            --format json \
            --output trivy-results.json \
            --severity CRITICAL,HIGH \
            --vuln-type os,library \
            --no-progress \
            --exit-code 1 .

      - name: Upload Trivy JSON report as artifact
        if: steps.trivy-scan.outcome == 'failure'
        uses: actions/upload-artifact@v7
        with:
          name: trivy-json-report
          path: trivy-results.json
          retention-days: 1

      - name: Upload SARIF to GitHub Security tab
        if: always()
        uses: github/codeql-action/upload-sarif@v4
        with:
          sarif_file: 'trivy-results.sarif'
          category: trivy-fs

      - name: Print vulnerability details and fail job
        
        if: steps.trivy-scan.outcome == 'failure'
        run: |
          echo "🛑 Trivy scan found CRITICAL or HIGH severity vulnerabilities. Details:"
          echo "--------------------------------------------------------------------"
          # Parse the JSON report and print a summary of each vulnerability
          jq -r '.Results[] | .Target as $target | if .Vulnerabilities then .Vulnerabilities[] | "File: \($target)\nPackage: \(.PkgName) (\(.InstalledVersion))\nID: \(.VulnerabilityID)\nSeverity: \(.Severity)\nLink: \(.PrimaryURL)\n--------------------------------------------------------------------" else empty end' trivy-results.json
          # Exit with a failure code to fail the workflow
          exit 1