name: CI

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

jobs:
  build:
    name: Build

    strategy:
      fail-fast: false
      matrix:
        os: [ubuntu-latest, macos-latest, windows-latest]

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

    steps:
      - name: Checkout repository
        uses: actions/checkout@v4

      - name: Install Rust
        uses: dtolnay/rust-toolchain@stable
        with:
          toolchain: stable
          components: clippy

      - name: Setup Rust cache
        uses: Swatinem/rust-cache@v2

      - name: Run build
        run: cargo build --locked --release

  format:
    name: Check formatting

    runs-on: ubuntu-latest

    steps:
      - name: Checkout repository
        uses: actions/checkout@v4

      - name: Install Nix
        uses: DeterminateSystems/nix-installer-action@v10

      - name: Setup Nix cache
        uses: DeterminateSystems/magic-nix-cache-action@v4

      - name: Run treefmt
        run: |
          pushd nix/dev
          nix fmt
          popd
          git diff --color=always --exit-code

  release-gate:
    name: CI Release Gate
    needs: [build, format]

    runs-on: ubuntu-latest

    steps:
      - name: Exit with result
        run: echo "We're good to go!"