name: CI

on:
  push:
    branches: [main]
  pull_request:
    branches: [main]

env:
  ZIG_VERSION: "0.16.0"

jobs:
  test:
    runs-on: ubuntu-24.04

    steps:
      - uses: actions/checkout@v4

      - name: Set up Zig
        uses: mlugg/setup-zig@v2
        with:
          version: ${{ env.ZIG_VERSION }}

      - name: Run test suite (unit + hermetic loopback integration)
        run: zig build test -Dintegration

  cross:
    runs-on: ubuntu-24.04

    steps:
      - uses: actions/checkout@v4

      - name: Set up Zig
        uses: mlugg/setup-zig@v2
        with:
          version: ${{ env.ZIG_VERSION }}

      - name: Build static musl executables
        run: zig build cross

      - name: Install file(1)
        run: |
          if ! command -v file >/dev/null 2>&1; then
            sudo apt-get update -qq
            sudo apt-get install -qq -y file
          fi

      - name: Assert executables exist and are statically linked
        run: |
          set -euo pipefail
          for triple in x86_64-linux-musl aarch64-linux-musl; do
            binary="zig-out/cross/$triple/nxdns"
            if [ ! -f "$binary" ]; then
              echo "missing executable: $binary"
              exit 1
            fi
            description=$(file -b "$binary")
            echo "$triple: $description"
            case "$description" in
              *"statically linked"*) ;;
              *)
                echo "not statically linked: $binary"
                exit 1
                ;;
            esac
          done