name: Clang-Tidy

on:
  push:
    branches: [ main ]
  pull_request:
    branches: [ main ]

permissions:
  contents: read

concurrency:
  group: clang-tidy-${{ github.ref }}
  cancel-in-progress: true

jobs:
  clang-tidy:
    name: Clang-Tidy Analysis
    runs-on: ubuntu-latest
    env:
      VCPKG_ROOT: ${{ github.workspace }}/vcpkg
    steps:
      - name: Install toolchain
        shell: bash
        run: |
          wget -qO- https://apt.llvm.org/llvm-snapshot.gpg.key | sudo tee /etc/apt/trusted.gpg.d/apt.llvm.org.asc
          sudo add-apt-repository -y "deb http://apt.llvm.org/noble/ llvm-toolchain-noble-21 main"
          sudo apt-get update
          sudo apt-get install -y git build-essential cmake ninja-build \
                 zip unzip curl pkg-config ca-certificates \
                 clang-21 lld-21 libc++-21-dev libc++abi-21-dev \
                 clang-tidy-21
          sudo update-alternatives --install /usr/bin/cc cc /usr/bin/clang-21 100
          sudo update-alternatives --install /usr/bin/c++ c++ /usr/bin/clang++-21 100
          sudo update-alternatives --install /usr/bin/lld lld /usr/bin/lld-21 100
          sudo update-alternatives --install /usr/bin/clang-tidy clang-tidy /usr/bin/clang-tidy-21 100

      - name: Checkout repository (with sub-modules)
        uses: actions/checkout@v4
        with:
          submodules: recursive

      - name: Set up vcpkg
        shell: bash
        run: |
          git clone https://github.com/microsoft/vcpkg "$VCPKG_ROOT"
          cd "$VCPKG_ROOT"
          ./bootstrap-vcpkg.sh

      - name: Configure (cmake --preset)
        shell: bash
        run: |
          cmake --preset linux-release-vcpkg \
            -DVCPKG_INSTALL_OPTIONS="--allow-unsupported" \
            -DOMATH_BUILD_TESTS=ON \
            -DOMATH_BUILD_BENCHMARK=OFF \
            -DVCPKG_MANIFEST_FEATURES="imgui;avx2;tests"

      - name: Run clang-tidy
        shell: bash
        run: |
          find source include \( -name '*.cpp' -o -name '*.hpp' \) -print0 | \
            xargs -0 clang-tidy -p cmake-build/build/linux-release-vcpkg