name: Build Node.js ARM64 musl

on:
  workflow_dispatch:

jobs:
  build:
    name: Build Node.js ARM64 musl
    runs-on: ubuntu-latest
    permissions:
      contents: write

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

      - name: Extract Node.js version from source
        id: node_ver
        run: |
          NODE_VER=$(grep -oP 'NODE_VERSION="\$\{NODE_VERSION:-\K[0-9.]+' root/usr/bin/openclaw-env)
          echo "version=${NODE_VER}" >> "$GITHUB_OUTPUT"
          echo "Node.js version from openclaw-env: v${NODE_VER}"

      - name: Set up QEMU
        uses: docker/setup-qemu-action@v3
        with:
          platforms: linux/arm64

      - name: Build Node.js ARM64 musl portable
        run: |
          NODE_VER="${{ steps.node_ver.outputs.version }}"
          mkdir -p dist
          echo "=== Building Node.js v${NODE_VER} ARM64 musl portable tarball ==="
          docker run --rm --platform linux/arm64 \
            -v "$PWD/dist:/output" \
            -v "$PWD/scripts/build-node-musl.sh:/build-node-musl.sh:ro" \
            -e "NODE_VER=${NODE_VER}" \
            alpine:3.21 sh /build-node-musl.sh

      - name: Verify tarball
        run: |
          echo "=== Output files ==="
          ls -lh dist/
          echo ""
          echo "=== Tarball contents (first 20 entries) ==="
          tar tJf dist/*.tar.xz | head -20

      - name: Upload artifact
        uses: actions/upload-artifact@v4
        with:
          name: node-arm64-musl
          path: dist/*.tar.xz

      - name: Create/Update Release
        uses: softprops/action-gh-release@v2
        with:
          tag_name: node-bins
          name: "Node.js Prebuilt Binaries (musl)"
          files: dist/*.tar.xz
          draft: false
          prerelease: false
          make_latest: false
          body: |
            预编译的 Node.js ARM64 musl 二进制文件，供 ARM64 OpenWrt/iStoreOS 设备使用。

            Node.js 官方 [unofficial-builds](https://unofficial-builds.nodejs.org/) 仅提供 x64 musl 构建，不提供 ARM64 musl。
            此 Release 使用 Alpine Linux ARM64 (musl libc) 环境打包。

            **注意**: 文件名中的版本号为 Alpine `apk add nodejs` 实际安装的版本，
            构建时自动从 `openclaw-env` 读取。

            `openclaw-env setup` 会在 ARM64 musl 设备上自动从此处下载。