name: CI

on:
  push:
    branches: [main]
    paths:
      - "**.nix"
      - "flake.lock"
      - ".github/workflows/ci.yaml"
  pull_request:
    paths:
      - "**.nix"
      - "flake.lock"
      - ".github/workflows/ci.yaml"
  workflow_call:
    inputs:
      ref:
        type: string
        description: "The branch, tag or SHA to checkout."
        required: false
  workflow_dispatch:

jobs:
  build:
    name: Build (${{ matrix.system }}/${{ matrix.target }})

    strategy:
      fail-fast: false
      matrix:
        include:
          - os: ubuntu-latest
            system: x86_64-linux
            target: x86_64-unknown-linux-gnu

          - os: ubuntu-latest
            system: x86_64-linux
            target: aarch64-unknown-linux-gnu

          - os: ubuntu-latest
            system: x86_64-linux
            target: armv7l-unknown-linux-gnueabihf

          - os: ubuntu-latest
            system: x86_64-linux
            target: powerpc64le-unknown-linux-gnu

          - os: ubuntu-latest
            system: x86_64-linux
            target: riscv64-unknown-linux-gnu

    runs-on: ${{ matrix.os }}

    steps:
      - name: Checkout repository
        uses: actions/checkout@v4
        with:
          ref: ${{ inputs.ref }}

      - name: Install Nix
        uses: cachix/install-nix-action@v30

      - name: Run build
        env:
          BASE_ATTRIBUTE: "${{ matrix.target}}-lwjgl"
        run: |
          nix build \
            --accept-flake-config \
            --fallback \
            --keep-going \
            --print-build-logs \
            --show-trace \
            ".#\"$BASE_ATTRIBUTE-3.3.3\"" \
            ".#\"$BASE_ATTRIBUTE-3.3.4\"" \
            ".#\"$BASE_ATTRIBUTE-3.3.6\""