name: coverage

on: [push, pull_request]

env:
  BOOST_VERSION: 1.82.0
  BOOST_DIR_VER_NAME: 1_82_0

jobs:
  posix:
    name: "coverage ${{ matrix.compiler }} -std=c++${{ matrix.cxxstd }}"
    defaults:
      run:
        shell: bash

    strategy:
      fail-fast: false
      matrix:
        include:
          - toolset: coverage
            compiler: g++-11
            install: g++-11
            os: ubuntu-latest
            container: ubuntu:22.04
            cxxstd: 20
            cxxflags: '-g -O0 -std=c++20 --coverage -fkeep-inline-functions -fkeep-static-functions'
            ldflags: '--coverage'
  
    runs-on: ${{ matrix.os }}
    container: ${{ matrix.container }}
    env:
      CMAKE_BUILD_PARALLEL_LEVEL: 4

    steps:
      - name: Checkout
        uses: actions/checkout@v3

      - name: Setup container environment
        if: matrix.container
        run: |
          apt-get update
          apt-get -y install sudo wget tar cmake openssl libssl-dev pkg-config lcov

      - name: Install compiler
        run: sudo apt-get install -y ${{ matrix.install }}
      
      - name: Setup Boost
        run: |
          wget https://archives.boost.io/release/${{ env.BOOST_VERSION }}/source/boost_${{ env.BOOST_DIR_VER_NAME }}.tar.gz
          tar xzf boost_${{ env.BOOST_DIR_VER_NAME }}.tar.gz
          mkdir /usr/local/boost_${{ env.BOOST_DIR_VER_NAME }}
          mv boost_${{ env.BOOST_DIR_VER_NAME }}/boost /usr/local/boost_${{ env.BOOST_DIR_VER_NAME }}
          rm boost_${{ env.BOOST_DIR_VER_NAME }}.tar.gz

      - name: Setup library
        run: |
          cmake -S . -B build -DCMAKE_CXX_COMPILER="${{ matrix.compiler }}" \
          -DBoost_INCLUDE_DIR="/usr/local/boost_${{ env.BOOST_DIR_VER_NAME }}"
          sudo cmake --install build

      - name: Build tests
        run: |
          cmake -S test -B test/build -DCMAKE_CXX_COMPILER="${{ matrix.compiler }}" -DCMAKE_CXX_FLAGS="${{ matrix.cxxflags }}" \
          -DCMAKE_EXE_LINKER_FLAGS="${{ matrix.ldflags }}" -DCMAKE_BUILD_TYPE="Coverage" \
          -DBoost_INCLUDE_DIR="/usr/local/boost_${{ env.BOOST_DIR_VER_NAME }}"
          cmake --build test/build -j 4

      - name: Run tests
        run: ./test/build/mqtt-test

      - name: Generate Coverage Report
        run: |
          lcov --capture --output-file coverage.info --directory test/build
          lcov --remove coverage.info '/usr/include/*' --output-file coverage.info
          lcov --remove coverage.info '**/test/*' --output-file coverage.info
          lcov --remove coverage.info '**/boost/*' --output-file coverage.info

      - name: Upload coverage reports to Codecov
        uses: codecov/codecov-action@v3
        with:
          files: coverage.info
          fail_ci_if_error: true
        env:
          CODECOV_TOKEN: ${{ secrets.CODECOV_TOKEN }}