on:
  workflow_call:

env:
  CARGO_TERM_COLOR: always
  ACTIONS_ALLOW_UNSECURE_COMMANDS: "true"

defaults:
  run:
    working-directory: rust/ares

jobs:
  build:
    runs-on: 'ubuntu-latest'
    steps:
      - uses: actions/checkout@v3

      # Determine proper nix platform attribute for runner
      - name: Determine Nix platform
        id: set-nix-platform
        working-directory: .
        run:
          .github/scripts/arch/get-runner-arch ${{ runner.arch }} ${{ runner.os }} > $GITHUB_OUTPUT

      # Install nix, required by nix-shell-action
      - uses: cachix/install-nix-action@v23
        name: Install Nix
        with:
          extra_nix_config: "extra-experimental-features = nix-command flakes"

      - name: Set cache key for dev env
        id: set-cache-key
        run: |
          echo "Determining devshell path for platform ${{ steps.set-nix-platform.outputs.nix-arch }}"
          echo "nix-devshell-path=$(nix eval --raw ".#devShells.${{ steps.set-nix-platform.outputs.nix-arch }}.default.outPath")" >> $GITHUB_OUTPUT

      - name: Cache nix build artifacts
        id: nix-cache
        uses: actions/cache@v3
        with:
          path: |
            nix-devshell.nixstore
          key: nix-${{ steps.set-cache-key.outputs.nix-devshell-path }}

      - name: Restore cached nix artifacts
        if: steps.nix-cache.outputs.cache-hit == 'true'
        working-directory: .
        run: |
          pwd
          ls
          nix-store --import < nix-devshell.nixstore

      - name: Cache rust build artifacts
        id: cache_rust
        uses: Swatinem/rust-cache@v2
        with:
          key: rust-${{ steps.set-cache-key.outputs.nix-devshell-path }}
          workspaces: "rust/ares -> target"

      # Check formatting
      - name: Format
        run: |
          nix develop --command bash -c "cargo fmt --check"

      # See clippy linter docs: https://github.com/rust-lang/rust-clippy
      #
      # First linter is set to fail for all warnings, then ignored warnings are
      # explicitly listed
      #
      # XX TODO make a script with all the flags for the linter
      - name: Lint
        run: |
          nix develop --command bash -c "cargo clippy --all-targets --no-deps -- -D warnings -A clippy::missing_safety_doc"

      # Build Ares
      - name: Build
        run: |
          nix develop --command bash -c "cargo build --release --verbose"

      # Run tests
      - name: Test
        run: |
          nix develop --command bash -c "cargo test --verbose -- --test-threads=1"

      - name: Build nix cache export
        if: steps.nix-cache.outputs.cache-hit != 'true'
        run: |
          pwd
          nix eval --json ".#devShells.${{ steps.set-nix-platform.outputs.nix-arch }}.default.buildInputs" 2>/dev/null
          nix eval --json ".#devShells.${{ steps.set-nix-platform.outputs.nix-arch }}.default.buildInputs" 2>/dev/null | jq -r '.[]' | xargs nix-store --query --requisites
          nix-store --export $(nix eval --json ".#devShells.${{ steps.set-nix-platform.outputs.nix-arch }}.default.buildInputs" 2>/dev/null | jq -r '.[]' | xargs nix-store --query --requisites) > ../../nix-devshell.nixstore
          ls -lh