name: libnode pack (Linux x64, macOS)
description: >-
  Provide the runner's libnode pack for the Node island tests and export
  SCRIPTC_LIBNODE. Restores the libnode build that the libnode-packs
  workflow cached and assembles @scriptc/libnode-<platform> from it (the
  bridge compiles in seconds; Node is never built here). Until that cache
  exists for this ref, it falls back to the pinned, checksum-verified
  development pack (packages/libnode-common/dev-pack.json). Fails the job if
  no pack results: the island tests must never skip in CI.
runs:
  using: composite
  steps:
    - name: Name the runner's pack
      id: target
      shell: bash
      run: |
        case "$RUNNER_OS-$RUNNER_ARCH" in
          Linux-X64) platform=linux-x64-gnu toolchain=manylinux_2_28-gcc-toolset-14 bridge=libscr_node_bridge.so ;;
          macOS-ARM64) platform=darwin-arm64 toolchain=macos-15-xcode-clang bridge=libscr_node_bridge.dylib ;;
          macOS-X64) platform=darwin-x64 toolchain=macos-15-xcode-clang bridge=libscr_node_bridge.dylib ;;
          *) echo "::error::no libnode pack for $RUNNER_OS $RUNNER_ARCH"; exit 1 ;;
        esac
        printf 'platform=%s\ntoolchain=%s\nbridge=%s\n' "$platform" "$toolchain" "$bridge" >> "$GITHUB_OUTPUT"
    - name: Compute the libnode cache key
      id: key
      shell: bash
      env:
        SCRIPTC_LIBNODE_TOOLCHAIN: ${{ steps.target.outputs.toolchain }}
      run: node packages/libnode-common/scripts/cache-key.mjs --platform ${{ steps.target.outputs.platform }} >> "$GITHUB_OUTPUT"
    - uses: actions/cache/restore@v4
      id: libnode
      with:
        path: .libnode-cache/${{ steps.key.outputs.path }}
        key: ${{ steps.key.outputs.key }}
    - name: Assemble @scriptc/libnode-${{ steps.target.outputs.platform }}
      if: steps.libnode.outputs.cache-hit == 'true'
      shell: bash
      env:
        SCRIPTC_LIBNODE_TOOLCHAIN: ${{ steps.target.outputs.toolchain }}
        SCRIPTC_LIBNODE_CACHE: ${{ github.workspace }}/.libnode-cache
      run: |
        node packages/libnode-${{ steps.target.outputs.platform }}/scripts/build.mjs --from-cache
        node packages/libnode-common/scripts/verify.mjs packages/libnode-${{ steps.target.outputs.platform }}
        echo "SCRIPTC_LIBNODE=$GITHUB_WORKSPACE/packages/libnode-${{ steps.target.outputs.platform }}" >> "$GITHUB_ENV"
    - uses: actions/cache@v4
      if: steps.libnode.outputs.cache-hit != 'true'
      id: devpack
      with:
        path: ${{ runner.temp }}/libnode-dev-pack
        key: libnode-dev-pack-${{ steps.target.outputs.platform }}-${{ hashFiles('packages/libnode-common/dev-pack.json', 'packages/libnode-common/build-pack.mjs', 'packages/libnode-common/fetch-dev-pack.mjs', 'packages/libnode-common/bridge/**', 'packages/runtime/src/scr_node_bridge.h') }}
    - name: Assemble the development pack
      if: steps.libnode.outputs.cache-hit != 'true'
      shell: bash
      run: |
        echo "::notice::no cached libnode-packs build for ${{ steps.key.outputs.key }}; using the development pack"
        if [ "${{ steps.devpack.outputs.cache-hit }}" != true ]; then
          node packages/libnode-common/fetch-dev-pack.mjs --out "$RUNNER_TEMP/libnode-dev-pack"
        fi
        echo "SCRIPTC_LIBNODE=$RUNNER_TEMP/libnode-dev-pack" >> "$GITHUB_ENV"
    - name: Check the pack
      shell: bash
      run: |
        test -f "$SCRIPTC_LIBNODE/manifest.json"
        test -f "$SCRIPTC_LIBNODE/${{ steps.target.outputs.bridge }}"