# The MIT License (MIT)
#
# Copyright (c) 2018 Mateusz Pusz
#
# Permission is hereby granted, free of charge, to any person obtaining a copy
# of this software and associated documentation files (the "Software"), to deal
# in the Software without restriction, including without limitation the rights
# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
# copies of the Software, and to permit persons to whom the Software is
# furnished to do so, subject to the following conditions:
#
# The above copyright notice and this permission notice shall be included in all
# copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
# SOFTWARE.

name: Freestanding CI

on:
  push:
    paths-ignore:
      - "docs/**"
  pull_request:
    paths-ignore:
      - "docs/**"

jobs:
  build:
    name: "${{ matrix.formatting }} ${{ matrix.contracts }} C++${{ matrix.std }} ${{ matrix.config.name }} ${{ matrix.build_type }}"
    runs-on: ${{ matrix.config.os }}
    strategy:
      fail-fast: false
      matrix:
        formatting: ["std::format", "fmtlib"]
        contracts: ["none"]
        std: [23]
        config:
          - {
              name: "GCC-14",
              os: ubuntu-24.04,
              compiler:
                {
                  type: GCC,
                  version: 14,
                  cc: "gcc-14",
                  cxx: "g++-14",
                },
              cxx_modules: "False",
              std_format_support: "True",
              conan-config: "",
            }
          - {
              name: "Clang-18",
              os: ubuntu-24.04,
              compiler:
                {
                  type: CLANG,
                  version: 18,
                  cc: "clang-18",
                  cxx: "clang++-18",
                },
              lib: "libc++",
              cxx_modules: "True",
              std_format_support: "True",
              conan-config: "",
            }
        build_type: ["Release", "Debug"]
        # TODO For some reason Clang-18 Debug with -ffreestanding does not pass CMakeTestCXXCompiler
        exclude:
          - build_type: "Debug"
            config: { name: "Clang-18" }

    env:
      CC: ${{ matrix.config.compiler.cc }}
      CXX: ${{ matrix.config.compiler.cxx }}

    steps:
      - uses: actions/checkout@v4
      - run: echo "cache_id=$(/bin/date -u "+%Y%m%d")" >> $GITHUB_ENV
      - name: Cache Conan data
        uses: actions/cache@v4
        if: always()
        env:
          cache-name: cache-conan-data
        with:
          path: ~/.conan2/p
          key: freestanding-${{ matrix.config.os }}-${{ matrix.formatting }}-${{ matrix.contracts }}-${{ matrix.config.compiler.type }}-${{ matrix.config.lib }}-${{ matrix.build_type }}-${{ matrix.config.compiler.version }}-${{ matrix.std }}-${{ env.cache_id }}
          restore-keys: |
            freestanding-${{ matrix.config.os }}-${{ matrix.formatting }}-${{ matrix.contracts }}-${{ matrix.config.compiler.type }}-${{ matrix.config.lib }}-${{ matrix.build_type }}-${{ matrix.config.compiler.version }}-${{ matrix.std }}-
            freestanding-${{ matrix.config.os }}-${{ matrix.formatting }}-${{ matrix.contracts }}-${{ matrix.config.compiler.type }}-${{ matrix.config.lib }}-${{ matrix.build_type }}-${{ matrix.config.compiler.version }}-
            freestanding-${{ matrix.config.os }}-${{ matrix.formatting }}-${{ matrix.contracts }}-${{ matrix.config.compiler.type }}-${{ matrix.config.lib }}-${{ matrix.build_type }}-
            freestanding-${{ matrix.config.os }}-${{ matrix.formatting }}-${{ matrix.contracts }}-${{ matrix.config.compiler.type }}-${{ matrix.config.lib }}-
            freestanding-${{ matrix.config.os }}-${{ matrix.formatting }}-${{ matrix.contracts }}-${{ matrix.config.compiler.type }}-
            freestanding-${{ matrix.config.os }}-${{ matrix.formatting }}-${{ matrix.contracts }}-
            freestanding-${{ matrix.config.os }}-${{ matrix.formatting }}-
            freestanding-${{ matrix.config.os }}-
      - uses: hendrikmuhs/ccache-action@v1.2
        if: runner.os == 'Linux'
        with:
          key: ${{ matrix.config.os }}-${{ matrix.formatting }}-${{ matrix.contracts }}-${{ matrix.config.compiler.type }}-${{ matrix.config.lib }}-${{ matrix.build_type }}-${{ matrix.config.compiler.version }}-${{ matrix.std }}
          max-size: 50M
      - name: Install Clang
        if: matrix.config.compiler.type == 'CLANG'
        shell: bash
        working-directory: ${{ env.HOME }}
        run: |
          wget https://apt.llvm.org/llvm.sh
          chmod +x llvm.sh
          sudo ./llvm.sh ${{ matrix.config.compiler.version }}
          sudo apt install -y clang-tools-${{ matrix.config.compiler.version }}
      - name: Install Libc++
        if: matrix.config.compiler.type == 'CLANG' && matrix.config.lib == 'libc++'
        shell: bash
        run: |
          sudo apt install -y libc++-${{ matrix.config.compiler.version }}-dev libc++abi-${{ matrix.config.compiler.version }}-dev libunwind-${{ matrix.config.compiler.version }}-dev
      - name: Set up Python
        uses: actions/setup-python@v5
        with:
          python-version: 3.x
      - name: Install Ninja
        shell: bash
        run: |
          pip install -U ninja
      - name: Install Conan
        shell: bash
        run: |
          pip install -U conan
      - name: Configure Conan
        shell: bash
        run: |
          conan profile detect --force
          if [[ "${{ matrix.config.compiler.type }}" == "CLANG" ]]; then
            sed -i.backup '/^\[settings\]$/,/^\[/ s/^compiler.libcxx=.*/compiler.libcxx=${{ matrix.config.lib }}/' ~/.conan2/profiles/default
          fi
          sed -i.backup '/^\[settings\]$/,/^\[/ s/^compiler.cppstd=.*/compiler.cppstd=${{ matrix.std }}/' ~/.conan2/profiles/default
          sed -i.backup '/^\[settings\]$/,/^\[/ s/^build_type=.*/build_type=${{ matrix.build_type }}/' ~/.conan2/profiles/default
          conan profile show -pr default
      - run: echo "std_format=$([ "${{ matrix.formatting }}" == "std::format" ] && echo "True" || echo "False")" >> $GITHUB_ENV
      - name: Build freestanding
        shell: bash
        run: |
          conan build . -b missing -c tools.cmake.cmaketoolchain:generator="Ninja Multi-Config" \
                        -c user.mp-units.build:all=True -c tools.build:cxxflags="['-ffreestanding']" \
                        -o '&:cxx_modules=${{ matrix.config.cxx_modules }}' -o '&:std_format=${{ env.std_format }}' -o '&:contracts=${{ matrix.contracts }}' -o '&:freestanding=True' ${{ matrix.config.conan-config }}
      - name: Clean Conan cache before backup
        shell: bash
        run: |
          conan remove *#~latest --confirm
          conan remove *:*#~latest --confirm
          conan cache clean "*" -s -b -d