name: .NET

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

env:
  DOTNET_NOLOGO: true
  DOTNET_CLI_TELEMETRY_OPTOUT: true
  DOTNET_SKIP_FIRST_TIME_EXPERIENCE: true
  NUGET_XMLDOC_MODE: ''
  DOTNET_MULTILEVEL_LOOKUP: 0

jobs:
  build:
    strategy:
      matrix:
        config:
          - Release
          - Debug

    runs-on: ubuntu-latest

    steps:
    - uses: actions/checkout@v4
      with:
        fetch-depth: 0 # so that NerdBank.GitVersioning has access to history
    - name: Setup .NET
      uses: actions/setup-dotnet@v3
      with:
        dotnet-version: 7.0.x
    - name: Restore dependencies
      run: dotnet restore
    - name: Build
      run: dotnet build --no-restore --configuration ${{matrix.config}}
    - name: Test
      run: dotnet test --no-build --verbosity normal --configuration ${{matrix.config}}

  build-nix:
    runs-on: ubuntu-latest
    steps:
      - name: Checkout
        uses: actions/checkout@v4
      - name: Install Nix
        uses: cachix/install-nix-action@v24
        with:
          extra_nix_config: |
            access-tokens = github.com=${{ secrets.GITHUB_TOKEN }}
      - name: Build
        run: nix build

  check-dotnet-format:
    runs-on: ubuntu-latest
    steps:
      - name: Checkout
        uses: actions/checkout@v4
      - name: Install Nix
        uses: cachix/install-nix-action@v24
        with:
          extra_nix_config: |
            access-tokens = github.com=${{ secrets.GITHUB_TOKEN }}
      - name: Run Fantomas
        run: nix run .#fantomas -- --check .

  check-nix-format:
    runs-on: ubuntu-latest
    steps:
      - name: Checkout
        uses: actions/checkout@v4
      - name: Install Nix
        uses: cachix/install-nix-action@v24
        with:
          extra_nix_config: |
            access-tokens = github.com=${{ secrets.GITHUB_TOKEN }}
      - name: Run Alejandra
        run: nix develop --command alejandra --check .

  check-flake:
    runs-on: ubuntu-latest
    steps:
      - name: Checkout
        uses: actions/checkout@v4
      - name: Install Nix
        uses: cachix/install-nix-action@v24
        with:
          extra_nix_config: |
            access-tokens = github.com=${{ secrets.GITHUB_TOKEN }}
      - name: Check flake
        run: nix flake check

  linkcheck:
    name: Check links
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@master
      - name: Install Nix
        uses: cachix/install-nix-action@v24
        with:
          extra_nix_config: |
            access-tokens = github.com=${{ secrets.GITHUB_TOKEN }}
      - name: Run link checker
        # Sadly we're in Bash
        run: 'nix develop --command markdown-link-check {,**/}*.md'

  all-required-checks-complete:
    needs: [check-dotnet-format, check-nix-format, build, build-nix, linkcheck, check-flake]
    runs-on: ubuntu-latest
    steps:
      - run: echo "All required checks complete."