# Dependency vulnerability scanning, deliberately not a PR gate: a CVE published
# overnight is not actionable in whatever PR happens to trip it, so scanning
# every PR just makes unrelated work go red. It runs on a schedule and when
# dependency manifests change on main; a finding fails the run, which is the
# signal to bump the dependency in its own PR.
#
# govulncheck is the one that matters most and was missing. Trivy does not
# evaluate the Go standard library at all, so a toolchain carrying a critical
# net/http advisory scanned clean. govulncheck covers the stdlib and proves
# reachability through the call graph, which is also what lets a finding be
# justified rather than merely bumped.
name: Security

on:
  schedule:
    - cron: "0 6 * * 1" # Monday 06:00 UTC
  workflow_dispatch:
  push:
    branches: [main]
    paths:
      - "go.mod"
      - "go.sum"
      - "**/pnpm-lock.yaml"
      - "**/package-lock.json"
      - "**/Cargo.lock"
      - "realtime/mix.lock"

permissions:
  contents: read

jobs:
  govulncheck:
    name: Go Vulnerabilities
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v4

      - uses: actions/setup-go@v5
        with:
          go-version-file: go.mod
          cache: true

      # The default build has no Kafka backend, so the Avro codec behind that
      # build tag is never compiled and never scanned. Both are checked.
      - name: Run govulncheck
        run: |
          go run golang.org/x/vuln/cmd/govulncheck@latest ./...
          go run golang.org/x/vuln/cmd/govulncheck@latest -tags kafka ./...

  trivy:
    name: Dependency Scan
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v4

      # ignore-unfixed is deliberately NOT set. An advisory with no upstream fix
      # is exactly the case that needs a human decision (upgrade, work around,
      # or write down why it is not reachable); hiding it meant the scan was
      # green while four such advisories were live.
      - name: Run Trivy vulnerability scanner
        uses: aquasecurity/trivy-action@v0.36.0
        with:
          scan-type: "fs"
          scan-ref: "."
          severity: "CRITICAL,HIGH"
          exit-code: "1"
          trivyignores: ".trivyignore"

  node:
    name: Node Dependencies
    runs-on: ubuntu-latest
    strategy:
      fail-fast: false
      matrix:
        tree: [web, admin, site, docs, forms]
    steps:
      - uses: actions/checkout@v4
      - uses: ./.github/actions/setup-pnpm
        with:
          working-directory: ${{ matrix.tree }}
      - name: Audit ${{ matrix.tree }}
        working-directory: ${{ matrix.tree }}
        # Production dependencies only: a devDependency advisory cannot be
        # reached by anything a visitor can send, and gating releases on the
        # transitive dependencies of eslint is how a scanner gets ignored.
        run: pnpm audit --audit-level=high --prod

  rust:
    name: Rust Dependencies
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v4
      - uses: rustsec/audit-check@v2
        with:
          token: ${{ secrets.GITHUB_TOKEN }}
          working-directory: tracking