name: 构建发布

on:
  push:
    tags:
      - 'v*'               # 推送 tag 时触发发布
  workflow_dispatch:        # 支持手动触发
    inputs:
      publish-to-pypi:
        description: '发布至 PyPI (true/false)'
        required: false
        default: 'false'

env:
  CARGO_TERM_COLOR: always

jobs:
  # ============================================================
  # 1. 发布 chanlun 核心库至 crates.io
  # ============================================================
  publish-crates:
    runs-on: ubuntu-latest
    outputs:
      version: ${{ steps.version.outputs.version }}
      exists: ${{ steps.check.outputs.exists }}
    steps:
      - uses: actions/checkout@v4

      - name: 安装 Rust 工具链
        uses: dtolnay/rust-toolchain@stable
        with:
          components: rustfmt, clippy

      - name: 缓存依赖
        uses: actions/cache@v4
        with:
          path: |
            ~/.cargo/registry
            ~/.cargo/git
            target
          key: ${{ runner.os }}-cargo-${{ hashFiles('chanlun/Cargo.lock') }}

      - name: 提取版本号
        id: version
        working-directory: chanlun
        run: |
          VER=$(cargo metadata --format-version 1 --no-deps 2>/dev/null \
            | jq -r '.packages[] | select(.name == "chanlun") | .version')
          echo "version=$VER" >> $GITHUB_OUTPUT
          echo "当前版本: $VER"

      - name: 检查版本是否已存在
        id: check
        run: |
          VER="${{ steps.version.outputs.version }}"
          EXISTS=$(curl -sS "https://crates.io/api/v1/crates/chanlun" \
            | jq -r --arg v "$VER" '.versions[]?.num // empty | select(. == $v)')
          if [ -n "$EXISTS" ]; then
            echo "版本 $VER 已存在于 crates.io，跳过发布"
            echo "exists=true" >> $GITHUB_OUTPUT
          else
            echo "版本 $VER 未发布，继续"
            echo "exists=false" >> $GITHUB_OUTPUT
          fi

      - name: 格式检查
        if: steps.check.outputs.exists == 'false'
        working-directory: chanlun
        run: cargo fmt --check

      - name: Lint 检查
        if: steps.check.outputs.exists == 'false'
        working-directory: chanlun
        run: cargo clippy

      - name: 运行测试
        if: steps.check.outputs.exists == 'false'
        working-directory: chanlun
        run: cargo test

      - name: 验证打包
        if: steps.check.outputs.exists == 'false'
        working-directory: chanlun
        run: cargo publish --dry-run --allow-dirty

      - name: 登录 crates.io
        if: steps.check.outputs.exists == 'false'
        run: cargo login ${{ secrets.CARGO_TOKEN }}

      - name: 发布 chanlun 至 crates.io
        if: steps.check.outputs.exists == 'false'
        working-directory: chanlun
        run: cargo publish --allow-dirty

  # ============================================================
  # 2. 构建 wheel — Linux x86_64 (manylinux)
  # ============================================================
  linux-x86_64:
    needs: [publish-crates]
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v4

      - name: 安装 Python
        uses: actions/setup-python@v5
        with:
          python-version: '3.12'

      - name: 安装 Rust 工具链
        uses: dtolnay/rust-toolchain@stable

      - name: 更新 cargo 索引（确保新版本可见）
        run: cargo update
        working-directory: chanlun-py

      - name: 构建 wheel (manylinux)
        uses: PyO3/maturin-action@v1
        with:
          target: x86_64
          working-directory: chanlun-py
          args: --release --out dist
          manylinux: auto

      - name: 上传 wheel 产物
        uses: actions/upload-artifact@v4
        with:
          name: wheels-linux-x86_64
          path: chanlun-py/dist/

  # ============================================================
  # 3. 构建 wheel — macOS (x86_64 + arm64)
  # ============================================================
  macos:
    needs: [publish-crates]
    runs-on: macos-latest
    strategy:
      matrix:
        target: [x86_64, aarch64]
    steps:
      - uses: actions/checkout@v4

      - name: 安装 Rust 工具链
        uses: dtolnay/rust-toolchain@stable

      - name: 安装 Python
        uses: actions/setup-python@v5
        with:
          python-version: '3.12'

      - name: 更新 cargo 索引
        run: cargo update
        working-directory: chanlun-py

      - name: 构建 wheel
        uses: PyO3/maturin-action@v1
        with:
          target: ${{ matrix.target }}
          working-directory: chanlun-py
          args: --release --out dist

      - name: 上传 wheel 产物
        uses: actions/upload-artifact@v4
        with:
          name: wheels-macos-${{ matrix.target }}
          path: chanlun-py/dist/

  # ============================================================
  # 4. 构建 wheel — Windows x86_64
  # ============================================================
  windows:
    needs: [publish-crates]
    runs-on: windows-latest
    strategy:
      matrix:
        target: [x64]
    steps:
      - uses: actions/checkout@v4

      - name: 安装 Rust 工具链
        uses: dtolnay/rust-toolchain@stable

      - name: 安装 Python
        uses: actions/setup-python@v5
        with:
          python-version: '3.12'

      - name: 更新 cargo 索引
        run: cargo update
        working-directory: chanlun-py

      - name: 构建 wheel
        uses: PyO3/maturin-action@v1
        with:
          target: ${{ matrix.target }}
          working-directory: chanlun-py
          args: --release --out dist

      - name: 上传 wheel 产物
        uses: actions/upload-artifact@v4
        with:
          name: wheels-windows-${{ matrix.target }}
          path: chanlun-py/dist/

  # ============================================================
  # 5. 源码分发包 (sdist)
  # ============================================================
  sdist:
    needs: [publish-crates]
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v4

      - name: 安装 Python
        uses: actions/setup-python@v5
        with:
          python-version: '3.12'

      - name: 构建 sdist
        uses: PyO3/maturin-action@v1
        with:
          command: sdist
          working-directory: chanlun-py
          args: --out dist

      - name: 上传 sdist 产物
        uses: actions/upload-artifact@v4
        with:
          name: wheels-sdist
          path: chanlun-py/dist/

  # ============================================================
  # 6. 发布至 PyPI
  # ============================================================
  publish:
    needs: [publish-crates, linux-x86_64, macos, windows, sdist]
    runs-on: ubuntu-latest
    if: startsWith(github.ref, 'refs/tags/v') || github.event.inputs.publish-to-pypi == 'true'
    permissions:
      id-token: write

    steps:
      - name: 下载所有产物
        uses: actions/download-artifact@v4
        with:
          path: dist/
          pattern: wheels-*
          merge-multiple: true

      - name: 列出产物
        run: ls -la dist/

      - name: 发布至 PyPI
        uses: pypa/gh-action-pypi-publish@release/v1
        with:
          packages-dir: dist/