name: "Build"
on:
  pull_request:
  push:
jobs:
  nix-build:
    if: github.event.pull_request.draft == false
    strategy:
      fail-fast: false
      matrix:
        include:
          - system: varda
            os: ubuntu-aarch64
          - system: durincore
            os: ubuntu-x86_64
    runs-on: ${{ matrix.os }}
    steps:
      # - name: Create nix mount point
        # if: contains(matrix.os, 'ubuntu-x86_64')
        # run: sudo mkdir /nix
      - uses: actions/setup-node@v4
        with:
          node-version: 20
      - name: Checkout repository
        uses: https://github.com/actions/checkout@v4
        with:
          fetch-depth: 0
      - name: Install Nix
        uses: https://github.com/cachix/install-nix-action@v26
        with:
          extra_nix_config: |
            experimental-features = nix-command flakes
          nix_path: nixpkgs=channel:nixos-unstable
      - uses: https://github.com/DeterminateSystems/magic-nix-cache-action@main
      - uses: https://github.com/cachix/cachix-action@v14
        if: ${{ !github.event.pull_request.head.repo.fork }}
        with:
          name: hsndev
          # If you chose API tokens for write access OR if you have a private cache
          authToken: '${{ secrets.CACHIX_AUTH_TOKEN }}'

      - name: Garbage collect build dependencies
        run: nix-collect-garbage

      - name: Build new ${{ matrix.system }} system
        run: |
          set -o pipefail
          nix build \
            ".#top.${{ matrix.system }}" \
            --profile ./profile \
            --fallback \
            -v \
            --log-format raw \
             > >(tee stdout.log) 2> >(tee /tmp/nix-build-err.log >&2)
  nix-build-success:
    if: ${{ always() }}
    needs:
      - nix-build
    name: Nix Build Successful
    runs-on: docker
    steps:
      - if: ${{ contains(needs.*.result, 'failure') || contains(needs.*.result, 'cancelled') }}
        name: Check matrix status
        run: exit 1