name: Reusable WASI

on:
  workflow_call:
    inputs:
      config_hash:
        required: true
        type: string

jobs:
  build_wasi_reusable:
    name: 'build and test'
    timeout-minutes: 60
    runs-on: ubuntu-24.04
    env:
      WASMTIME_VERSION: 22.0.0
      WASI_SDK_VERSION: 24
      WASI_SDK_PATH: /opt/wasi-sdk
      CROSS_BUILD_PYTHON: cross-build/build
      CROSS_BUILD_WASI: cross-build/wasm32-wasip1
    steps:
    - uses: actions/checkout@v4
    # No problem resolver registered as one doesn't currently exist for Clang.
    - name: "Install wasmtime"
      uses: bytecodealliance/actions/wasmtime/setup@v1
      with:
        version: ${{ env.WASMTIME_VERSION }}
    - name: "Restore WASI SDK"
      id: cache-wasi-sdk
      uses: actions/cache@v4
      with:
        path: ${{ env.WASI_SDK_PATH }}
        key: ${{ runner.os }}-wasi-sdk-${{ env.WASI_SDK_VERSION }}
    - name: "Install WASI SDK"  # Hard-coded to x64.
      if: steps.cache-wasi-sdk.outputs.cache-hit != 'true'
      run: |
        mkdir ${{ env.WASI_SDK_PATH }} && \
        curl -s -S --location https://github.com/WebAssembly/wasi-sdk/releases/download/wasi-sdk-${{ env.WASI_SDK_VERSION }}/wasi-sdk-${{ env.WASI_SDK_VERSION }}.0-x86_64-linux.tar.gz | \
        tar --strip-components 1 --directory ${{ env.WASI_SDK_PATH }} --extract --gunzip
    - name: "Configure ccache action"
      uses: hendrikmuhs/ccache-action@v1.2
      with:
        save: ${{ github.event_name == 'push' }}
        max-size: "200M"
    - name: "Add ccache to PATH"
      run: echo "PATH=/usr/lib/ccache:$PATH" >> "$GITHUB_ENV"
    - name: "Install Python"
      uses: actions/setup-python@v5
      with:
        python-version: '3.x'
    - name: "Restore Python build config.cache"
      uses: actions/cache@v4
      with:
        path: ${{ env.CROSS_BUILD_PYTHON }}/config.cache
        # Include env.pythonLocation in key to avoid changes in environment when setup-python updates Python.
        # Include the hash of `Tools/wasm/wasi.py` as it may change the environment variables.
        # (Make sure to keep the key in sync with the other config.cache step below.)
        key: ${{ github.job }}-${{ runner.os }}-${{ env.IMAGE_VERSION }}-${{ env.WASI_SDK_VERSION }}-${{ env.WASMTIME_VERSION }}-${{ inputs.config_hash }}-${{ hashFiles('Tools/wasm/wasi.py') }}-${{ env.pythonLocation }}
    - name: "Configure build Python"
      run: python3 Tools/wasm/wasi.py configure-build-python -- --config-cache --with-pydebug
    - name: "Make build Python"
      run: python3 Tools/wasm/wasi.py make-build-python
    - name: "Restore host config.cache"
      uses: actions/cache@v4
      with:
        path: ${{ env.CROSS_BUILD_WASI }}/config.cache
        # Should be kept in sync with the other config.cache step above.
        key: ${{ github.job }}-${{ runner.os }}-${{ env.IMAGE_VERSION }}-${{ env.WASI_SDK_VERSION }}-${{ env.WASMTIME_VERSION }}-${{ inputs.config_hash }}-${{ hashFiles('Tools/wasm/wasi.py') }}-${{ env.pythonLocation }}
    - name: "Configure host"
      # `--with-pydebug` inferred from configure-build-python
      run: python3 Tools/wasm/wasi.py configure-host -- --config-cache
    - name: "Make host"
      run: python3 Tools/wasm/wasi.py make-host
    - name: "Display build info"
      run: make --directory ${{ env.CROSS_BUILD_WASI }} pythoninfo
    - name: "Test"
      run: make --directory ${{ env.CROSS_BUILD_WASI }} test