name: Trivy Security Scan

on:
  schedule:
    # Run at 00:00 on day 1 of every 3rd month (January, April, July, October)
    - cron: "0 0 1 */3 *"
  workflow_dispatch: # Allow manual trigger
  push:
    branches:
      - master
  pull_request:
    branches:
      - master

permissions:
  contents: read
  security-events: write # For uploading results to GitHub Security tab

jobs:
  trivy-scan:
    name: Trivy Security Scan
    runs-on: ubuntu-latest

    steps:
      - name: Checkout code
        uses: actions/checkout@v7

      - name: Run Trivy vulnerability scanner in repo mode
        uses: aquasecurity/trivy-action@v0.36.0
        with:
          scan-type: "fs"
          scan-ref: "."
          format: "sarif"
          output: "trivy-results.sarif"
          severity: "CRITICAL,HIGH"

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

      - name: Run Trivy vulnerability scanner (table output)
        uses: aquasecurity/trivy-action@v0.36.0
        with:
          scan-type: "fs"
          scan-ref: "."
          format: "table"
          severity: "CRITICAL,HIGH"
          exit-code: "1"

  trivy-docker:
    name: Trivy Docker Image Scan
    runs-on: ubuntu-latest

    steps:
      - name: Checkout code
        uses: actions/checkout@v7

      - name: Build Docker image
        run: docker build -t telegram-action:latest .

      - name: Run Trivy vulnerability scanner on Docker image
        uses: aquasecurity/trivy-action@v0.36.0
        with:
          scan-type: "image"
          image-ref: "telegram-action:latest"
          format: "sarif"
          output: "trivy-docker-results.sarif"
          severity: "CRITICAL,HIGH"

      - name: Upload Trivy Docker results to GitHub Security tab
        uses: github/codeql-action/upload-sarif@v4
        if: always()
        with:
          sarif_file: "trivy-docker-results.sarif"

      # Gated at CRITICAL only: base images may carry upstream HIGHs that can
      # only be cleared by an upstream rebuild. They remain visible in the
      # Security tab via the SARIF upload above.
      - name: Run Trivy vulnerability scanner on Docker image (table output)
        uses: aquasecurity/trivy-action@v0.36.0
        if: always()
        with:
          scan-type: "image"
          image-ref: "telegram-action:latest"
          format: "table"
          severity: "CRITICAL"
          exit-code: "1"