name: CI

on:
  push:
  pull_request:

jobs:
  eval-machines:
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v4
        with:
          # Fetch all history for git-based operations
          fetch-depth: 0

      - uses: DeterminateSystems/nix-installer-action@main
        with:
          extra-conf: |
            experimental-features = nix-command flakes

      - uses: DeterminateSystems/magic-nix-cache-action@main

      - name: Evaluate all NixOS configurations
        run: |
          echo "Evaluating NixOS configurations..."
          failed=0
          for machine in $(nix eval --json .#nixosConfigurations --apply builtins.attrNames | jq -r '.[]'); do
            echo "Evaluating $machine..."
            if ! nix eval .#nixosConfigurations.$machine.config.system.build.toplevel --raw; then
              echo "❌ Failed to evaluate $machine"
              failed=1
            else
              echo "✅ $machine evaluated successfully"
            fi
          done
          exit $failed

      - name: Evaluate all Darwin configurations
        run: |
          echo "Evaluating Darwin configurations..."
          failed=0
          for machine in $(nix eval --json .#darwinConfigurations --apply builtins.attrNames 2>/dev/null | jq -r '.[]' 2>/dev/null || echo ""); do
            if [ -n "$machine" ]; then
              echo "Evaluating $machine..."
              if ! nix eval .#darwinConfigurations.$machine.system --raw; then
                echo "❌ Failed to evaluate $machine"
                failed=1
              else
                echo "✅ $machine evaluated successfully"
              fi
            fi
          done
          exit $failed

      - name: Check formatter
        run: |
          nix fmt -- --fail-on-change