name: Code Scanning

on:
  push:
    branches: [trunk]
  pull_request:
    branches: [trunk]
    paths-ignore:
      - '**/*.md'
  schedule:
    - cron: "0 0 * * 0"

permissions:
  actions: read  # for github/codeql-action/init to get workflow details
  contents: read  # for actions/checkout to fetch code
  security-events: write  # for github/codeql-action/analyze to upload SARIF results

jobs:
  CodeQL-Build:
    runs-on: ubuntu-latest
    strategy:
      fail-fast: false
      matrix:
        language: ['go', 'actions']

    steps:
      - name: Check out code
        uses: actions/checkout@v6

      - name: Setup Go
        if: matrix.language == 'go'
        uses: actions/setup-go@v6
        with:
          go-version-file: "go.mod"

      - name: Initialize CodeQL
        uses: github/codeql-action/init@v4
        with:
          languages: ${{ matrix.language }}
          queries: security-and-quality

      - name: Perform CodeQL Analysis
        uses: github/codeql-action/analyze@v4
        with:
          category: "/language:${{ matrix.language }}"
          upload: false
          output: sarif-results

      - name: Filter SARIF for third-party code
        if: matrix.language == 'go'
        uses: advanced-security/filter-sarif@f3b8118a9349d88f7b1c0c488476411145b6270d # v1.0.1
        with:
          patterns: |
            -third-party/**
          input: sarif-results/${{ matrix.language }}.sarif
          output: sarif-results/${{ matrix.language }}.sarif

      - name: Upload filtered SARIF
        uses: github/codeql-action/upload-sarif@v4
        with:
          sarif_file: sarif-results/${{ matrix.language }}.sarif
          category: "/language:${{ matrix.language }}"