name: Test

on:
  push:
    branches: [main]

jobs:
  format:
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v4

      - uses: cachix/install-nix-action@v25
        with:
          nix_path: nixpkgs=channel:nixos-unstable

      - run: nix fmt -- --ci

  tests:
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v4
        with:
          submodules: true

      - uses: cachix/install-nix-action@v25
        with:
          nix_path: nixpkgs=channel:nixos-unstable

      - uses: actions/cache@v4
        with:
          path: |
            ~/.cargo/registry
            ~/.cargo/git
            target
          key: cargo-${{ hashFiles('rust-toolchain.toml', 'Cargo.lock') }}-${{ github.sha }}
          restore-keys: cargo-${{ hashFiles('rust-toolchain.toml', 'Cargo.lock') }}-

      - run: nix develop --command just check