name: Reusable Build

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

jobs:
  build:
    name: Build ${{ matrix.os }} Python ${{ matrix.python }}
    strategy:
      matrix:
        include:
          - os: ubuntu-22.04
            python: '3.9'
          - os: ubuntu-22.04
            python: '3.10'
          - os: ubuntu-22.04
            python: '3.11'
          - os: ubuntu-22.04
            python: '3.12'
          - os: ubuntu-22.04
            python: '3.13'
          - os: macos-latest
            python: '3.9'
          - os: macos-latest
            python: '3.10'
          - os: macos-latest
            python: '3.11'
          - os: macos-latest
            python: '3.12'
          - os: macos-latest
            python: '3.13'
    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 \
            pkg-config libopenblas-dev patchelf libabsl-dev libaio-dev libprotobuf-dev
          
          # Install Intel MKL for DiskANN
          wget -q https://registrationcenter-download.intel.com/akdlm/IRC_NAS/79153e0f-74d7-45af-b8c2-258941adf58a/intel-onemkl-2025.0.0.940.sh
          sudo sh intel-onemkl-2025.0.0.940.sh -a --components intel.oneapi.lin.mkl.devel --action install --eula accept -s
          source /opt/intel/oneapi/setvars.sh
          echo "MKLROOT=/opt/intel/oneapi/mkl/latest" >> $GITHUB_ENV
          echo "LD_LIBRARY_PATH=/opt/intel/oneapi/mkl/latest/lib/intel64:$LD_LIBRARY_PATH" >> $GITHUB_ENV
      
      - name: Install system dependencies (macOS)
        if: runner.os == 'macOS'
        run: |
          brew install llvm libomp boost protobuf zeromq
      
      - name: Install build dependencies
        run: |
          uv pip install --system scikit-build-core numpy swig Cython pybind11
          if [[ "$RUNNER_OS" == "Linux" ]]; then
            uv pip install --system auditwheel
          else
            uv pip install --system delocate
          fi
      
      - name: Build packages
        run: |
          # Build core (platform independent)
          if [[ "${{ matrix.os }}" == ubuntu-* ]]; then
            cd packages/leann-core
            uv build
            cd ../..
          fi
          
          # Build HNSW backend
          cd packages/leann-backend-hnsw
          if [ "${{ matrix.os }}" == "macos-latest" ]; then
            CC=$(brew --prefix llvm)/bin/clang CXX=$(brew --prefix llvm)/bin/clang++ uv build --wheel --python python
          else
            uv build --wheel --python python
          fi
          cd ../..
          
          # Build DiskANN backend
          cd packages/leann-backend-diskann
          if [ "${{ matrix.os }}" == "macos-latest" ]; then
            CC=$(brew --prefix llvm)/bin/clang CXX=$(brew --prefix llvm)/bin/clang++ uv build --wheel --python python
          else
            uv build --wheel --python python
          fi
          cd ../..
          
          # Build meta package (platform independent)
          if [[ "${{ matrix.os }}" == ubuntu-* ]]; then
            cd packages/leann
            uv build
            cd ../..
          fi
      
      - name: Repair wheels (Linux)
        if: runner.os == 'Linux'
        run: |
          # Repair HNSW wheel
          cd packages/leann-backend-hnsw
          if [ -d dist ]; then
            auditwheel repair dist/*.whl -w dist_repaired
            rm -rf dist
            mv dist_repaired dist
          fi
          cd ../..
          
          # Repair DiskANN wheel
          cd packages/leann-backend-diskann
          if [ -d dist ]; then
            auditwheel repair dist/*.whl -w dist_repaired
            rm -rf dist
            mv dist_repaired dist
          fi
          cd ../..
      
      - name: Repair wheels (macOS)
        if: runner.os == 'macOS'
        run: |
          # Repair HNSW wheel
          cd packages/leann-backend-hnsw
          if [ -d dist ]; then
            delocate-wheel -w dist_repaired -v dist/*.whl
            rm -rf dist
            mv dist_repaired dist
          fi
          cd ../..
          
          # Repair DiskANN wheel
          cd packages/leann-backend-diskann
          if [ -d dist ]; then
            delocate-wheel -w dist_repaired -v dist/*.whl
            rm -rf dist
            mv dist_repaired dist
          fi
          cd ../..
      
      - name: List built packages
        run: |
          echo "📦 Built packages:"
          find packages/*/dist -name "*.whl" -o -name "*.tar.gz" | sort
      
      - name: Upload artifacts
        uses: actions/upload-artifact@v4
        with:
          name: packages-${{ matrix.os }}-py${{ matrix.python }}
          path: packages/*/dist/