name: CI

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

concurrency:
  group: ${{ github.workflow }}-${{ github.ref }}
  cancel-in-progress: true

jobs:
  test:
    permissions:
      contents: read
    strategy:
      fail-fast: false
      matrix:
        include:
          - os: ubuntu-latest
            phase8_target: linux-x64
          - os: macos-14
            phase8_target: darwin-arm64
          - os: windows-latest
            phase8_target: windows
    runs-on: ${{ matrix.os }}
    env:
      USE_BAZEL_VERSION: 9.0.1
    steps:
      - uses: actions/checkout@v4
      - uses: bazel-contrib/setup-bazel@0.18.0
        with:
          bazelisk-cache: true
          repository-cache: true
          external-cache: true
          disk-cache: ci-${{ matrix.phase8_target }}
          cache-save: ${{ github.event_name != 'pull_request' }}
      - name: Install Nix
        if: runner.os != 'Windows'
        uses: cachix/install-nix-action@v31
        with:
          extra_nix_config: |
            experimental-features = nix-command flakes
      - name: Restore and save Nix store cache
        if: runner.os != 'Windows'
        uses: nix-community/cache-nix-action@v7
        with:
          primary-key: nix-${{ runner.os }}-${{ hashFiles('**/*.nix', '**/flake.lock') }}
          restore-prefixes-first-match: nix-${{ runner.os }}-
      - name: Install flake dependencies
        if: runner.os != 'Windows'
        run: nix develop --accept-flake-config -c true
      - name: Set up Python
        if: runner.os == 'Windows'
        uses: actions/setup-python@v5
        with:
          python-version: "3.12"
      - name: Provide python3 shim
        if: runner.os == 'Windows'
        shell: bash
        run: |
          mkdir -p "$RUNNER_TEMP/bin"
          cat >"$RUNNER_TEMP/bin/python3" <<'EOF'
          #!/usr/bin/env bash
          exec python "$@"
          EOF
          chmod +x "$RUNNER_TEMP/bin/python3"
          echo "$RUNNER_TEMP/bin" >> "$GITHUB_PATH"
      - name: Run tests (${{ matrix.phase8_target }})
        if: runner.os != 'Windows'
        shell: bash
        run: |
          echo "Phase 8 target: ${{ matrix.phase8_target }}"
          mapfile -t targets < <(./tests/ci_test/phase8_ci_targets.sh "${{ matrix.phase8_target }}")
          nix develop --accept-flake-config -c bazel test --test_output=errors "${targets[@]}"
      - name: Run tests (${{ matrix.phase8_target }})
        if: runner.os == 'Windows'
        shell: bash
        run: |
          echo "Phase 8 target: ${{ matrix.phase8_target }}"
          mapfile -t targets < <(./tests/ci_test/phase8_ci_targets.sh "${{ matrix.phase8_target }}")
          bazel test --test_output=errors "${targets[@]}"