name: CI

on:
  push:
    branches: [master]
  pull_request:
    branches: [master]

jobs:
  # ── 动态矩阵 ──────────────────────────────────────────────
  # PR 仅跑 Ubuntu 节省 minutes；push master 跑全矩阵 Ubuntu + Windows
  matrix:
    name: Determine matrix
    runs-on: ubuntu-24.04
    outputs:
      os: ${{ steps.set-matrix.outputs.os }}
    steps:
      - id: set-matrix
        shell: bash
        run: |
          if [ "${{ github.event_name }}" = "push" ] && [ "${{ github.ref }}" = "refs/heads/master" ]; then
            echo "os=[\"ubuntu-24.04\",\"windows-2025\"]" >> "$GITHUB_OUTPUT"
          else
            echo "os=[\"ubuntu-24.04\"]" >> "$GITHUB_OUTPUT"
          fi

  # ── 构建 & 测试 ───────────────────────────────────────────
  build:
    name: ${{ matrix.os }} / ${{ matrix.build_type }}
    needs: matrix
    strategy:
      fail-fast: false
      matrix:
        os: ${{ fromJSON(needs.matrix.outputs.os) }}
        build_type: [Release]
    runs-on: ${{ matrix.os }}

    steps:
      - name: Checkout
        uses: actions/checkout@v4
        with:
          fetch-depth: 1

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

      - name: Install Conan
        run: pip install conan

      - name: Cache Conan
        uses: actions/cache@v4
        with:
          path: |
            ~/.conan2
            ~/.conan2/p
          key: ${{ runner.os }}-conan-${{ matrix.build_type }}-${{ hashFiles('deps/conanfile.txt') }}
          restore-keys: |
            ${{ runner.os }}-conan-${{ matrix.build_type }}-
            ${{ runner.os }}-conan-

      - name: Install Conan dependencies
        run: |
          conan profile detect --force
          conan install deps --build=missing -s build_type=${{ matrix.build_type }}

      - name: Configure CMake
        run: cmake --preset conan-release

      - name: Build
        run: cmake --build --preset conan-release --config ${{ matrix.build_type }}

      - name: Test
        run: ctest --preset conan-release -C ${{ matrix.build_type }} --output-on-failure