name: Horusec Security Scan

on:
  push:
    branches: [main]
  pull_request:
    branches: [main]
  schedule:
    - cron: "0 0 * * 0" # Weekly at midnight on Sunday

# Cancel in-progress runs when a new workflow with the same group is triggered
concurrency:
  group: ${{ github.workflow }}-${{ github.ref }}
  cancel-in-progress: true

jobs:
  horusec-security:
    name: Horusec Security Scan
    runs-on: ubuntu-latest
    steps:
      - name: Checkout code
        uses: actions/checkout@v4
        with:
          fetch-depth: 0

      # Cache Horusec to speed up subsequent runs
      - name: Cache Horusec
        uses: actions/cache@v4
        with:
          path: ~/.horusec
          key: ${{ runner.os }}-horusec-${{ hashFiles('**/mix.lock') }}
          restore-keys: |
            ${{ runner.os }}-horusec-

      # Install Horusec CLI directly since the action isn't available
      - name: Install Horusec CLI
        run: |
          curl -fsSL https://raw.githubusercontent.com/ZupIT/horusec/main/deployments/scripts/install.sh | bash -s latest
          horusec version

      - name: Running Horusec Security Scan
        id: horusec
        run: |
          horusec start -p="./" --config-file-path="./horusec-config.json" --output-format="json" --output="./horusec-report.json" || echo "::warning::Vulnerabilities found"
        env:
          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}

      # Upload security scan results as an artifact
      - name: Upload Horusec Report
        uses: actions/upload-artifact@v4
        if: always()
        with:
          name: horusec-report
          path: horusec-report.json
          retention-days: 7

      # Analyze Elixir-specific vulnerabilities with Sobelow
      - name: Set up Elixir
        if: always()
        uses: erlef/setup-beam@v1
        with:
          elixir-version: "1.17.x"
          otp-version: "26.x"

      - name: Cache Elixir deps
        if: always()
        uses: actions/cache@v4
        with:
          path: |
            deps
            _build
          key: ${{ runner.os }}-mix-${{ hashFiles('**/mix.lock') }}
          restore-keys: |
            ${{ runner.os }}-mix-

      - name: Install dependencies
        if: always()
        run: mix deps.get

      - name: Run Sobelow (Elixir-specific security scan)
        if: always()
        run: mix sobelow --format=json --out=sobelow-report.json --exit || echo "::warning::Sobelow detected vulnerabilities"

      - name: Upload Sobelow Report
        uses: actions/upload-artifact@v4
        if: always()
        with:
          name: sobelow-report
          path: sobelow-report.json
          retention-days: 7

      # Optional: Fail the workflow if critical vulnerabilities are found
      - name: Check for critical vulnerabilities
        if: always()
        run: |
          if grep -q "CRITICAL" horusec-report.json; then
            echo "Critical vulnerabilities found in the security scan!"
            echo "Review the security reports in the workflow artifacts."
            exit 1
          fi