name: CI

on:
  push:
    branches:
      - main
    tags:
      - '*'
  pull_request:
  workflow_dispatch:

permissions:
  contents: read

jobs:
  wheels:
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v4
      - uses: actions/setup-python@v5
        with:
          python-version: 3.x

      - name: Setup caching
        uses: actions/cache@v4
        with:
          path: |
            /var/cache/apt
            ~/.cache/pip
            ~/.cache/pip-wheel
            ~/.cache/sccache
            ~/.cache/cargo-xwin
            ~/.cargo
            ~/.osxcross
          key: cache-ubuntu-maturin-cross-compile

      - name: Install llvm
        run: |
          if ! command -v llvm-dlltool >/dev/null 2>&1; then
            sudo apt update
            sudo apt install -y llvm
          fi
        shell: bash

      - name: Install Rust
        run: |
          export PATH="~/.cargo/bin:$PATH"
          if ! command -v rustc >/dev/null 2>&1; then
            curl --proto '=https' --tlsv1.2 -sSf https://sh.rustup.rs | sh -s -- -y
          else
            rustup update
          fi
        shell: bash

      - name: Install sccache and maturin
        run: |
          export PATH="~/.cargo/bin:$PATH"
          python -m pip install --upgrade pip
          pip install maturin ziglang
          if ! command -v sccache >/dev/null 2>&1; then
            cargo install sccache || pip install sccache
          fi
        shell: bash

      - name: Install xwin
        run: |
          export PATH="~/.cargo/bin:$PATH"
          if ! command -v cargo-xwin >/dev/null 2>&1; then
            cargo install cargo-xwin || pip install cargo-xwin
            cargo xwin cache xwin
          fi
        shell: bash

      - name: Install osxcross
        run: |
          export PATH="~/.osxcross/bin:$PATH"
          if ! command -v osxcross >/dev/null 2>&1; then
            wget https://nextcloud.wimpomp.nl/s/DcrTwoP3SeY7DQF/download -O osxcross.tar.gz
            tar -xzf osxcross.tar.gz -C ~/
            mv ~/osxcross ~/.osxcross
          fi

      - name: Build wheels
        run: |
          export PATH="~/.cargo/bin:~/.osxcross/bin:$PATH"
          cd
          ls -a
          echo $PATH         
          maturin sdist --out dist
          rustup default nightly
          rustup target add x86_64-unknown-linux-gnu --toolchain nightly
          maturin build --release --out dist --target x86_64-unknown-linux-gnu
          rustup target add aarch64-unknown-linux-gnu --toolchain nightly
          maturin build --release --out dist --target aarch64-unknown-linux-gnu --zig
          
          rustup target add x86_64-pc-windows-msvc --toolchain nightly
          maturin build --release --out dist --target x86_64-pc-windows-msvc
          rustup target add aarch64-pc-windows-msvc --toolchain nightly
          maturin build --release --out dist --target aarch64-pc-windows-msvc
          
          rustup target add x86_64-apple-darwin --toolchain nightly
          maturin build --release --out dist --target x86_64-apple-darwin --zig
          rustup target add aarch64-apple-darwin --toolchain nightly
          maturin build --release --out dist --target aarch64-apple-darwin --zig

      - name: Upload wheels
        uses: actions/upload-artifact@v3.2.2
        with:
          path: dist/kmeans-*

  release:
    name: Release
    runs-on: ubuntu-latest
    if: ${{ startsWith(github.ref, 'refs/tags/') || github.event_name == 'workflow_dispatch' }}
    needs: [wheels]
    permissions:
      # Use to sign the release artifacts
      id-token: write
      # Used to upload release artifacts
      contents: write
      # Used to generate artifact attestation
      attestations: write
    steps:
      - uses: actions/download-artifact@v4
      - name: Generate artifact attestation
        uses: actions/attest-build-provenance@v2
        with:
          subject-path: 'wheels-*/*'
      - name: Publish to PyPI
        if: ${{ startsWith(github.ref, 'refs/tags/') }}
        uses: PyO3/maturin-action@v1
        env:
          MATURIN_PYPI_TOKEN: ${{ secrets.PYPI_API_TOKEN }}
        with:
          command: upload
          args: --non-interactive --skip-existing wheels-*/*