name: Reusable Build

on:
  workflow_call:
    inputs:
      ref:
        description: 'Git ref to build'
        required: false
        type: string
        default: ''

jobs:
  build:
    name: Build ${{ matrix.os }}
    strategy:
      matrix:
        include:
          - os: ubuntu-latest
            python: '3.11'
          - os: macos-latest
            python: '3.11'
    runs-on: ${{ matrix.os }}
    
    steps:
      - uses: actions/checkout@v4
        with:
          ref: ${{ inputs.ref }}
          submodules: recursive
      
      - name: Setup Python
        uses: actions/setup-python@v5
        with:
          python-version: ${{ matrix.python }}
      
      - name: Install uv
        uses: astral-sh/setup-uv@v4
      
      - name: Install system dependencies (Ubuntu)
        if: runner.os == 'Linux'
        run: |
          sudo apt-get update
          sudo apt-get install -y libomp-dev libboost-all-dev protobuf-compiler libzmq3-dev
      
      - name: Install system dependencies (macOS)
        if: runner.os == 'macOS'
        run: |
          brew install llvm libomp boost protobuf zeromq
      
      - name: Build packages
        run: |
          # Build core (platform independent)
          if [ "${{ matrix.os }}" == "ubuntu-latest" ]; then
            cd packages/leann-core
            uv build
            cd ../..
          fi
          
          # Build HNSW backend
          cd packages/leann-backend-hnsw
          uv pip install --system -r pyproject.toml --extra build
          if [ "${{ matrix.os }}" == "macos-latest" ]; then
            CC=$(brew --prefix llvm)/bin/clang CXX=$(brew --prefix llvm)/bin/clang++ uv build
          else
            uv build
          fi
          cd ../..
          
          # Build DiskANN backend
          cd packages/leann-backend-diskann
          uv pip install --system -r pyproject.toml --extra build
          if [ "${{ matrix.os }}" == "macos-latest" ]; then
            CC=$(brew --prefix llvm)/bin/clang CXX=$(brew --prefix llvm)/bin/clang++ uv build
          else
            uv build
          fi
          cd ../..
          
          # Build meta package (platform independent)
          if [ "${{ matrix.os }}" == "ubuntu-latest" ]; then
            cd packages/leann
            uv build
            cd ../..
          fi
          
          echo "📦 Built packages:"
          find packages/*/dist -name "*.whl" -o -name "*.tar.gz" | sort
      
      - name: Upload artifacts
        uses: actions/upload-artifact@v4
        with:
          name: packages-${{ matrix.os }}-${{ matrix.python }}
          path: packages/*/dist/