name: test
run-name: Tests

on:
  push:
    branches: [ main ]
  pull_request:
    branches: [ main ]
  # Make it able to be used in other workflows
  workflow_call:

defaults:
  run:
    shell: bash

jobs:
  pre-commit:
    name: Check pre-commit
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v3
      - uses: actions/setup-python@v4
      - uses: pre-commit/action@v3.0.0

  test:
    name: Run ctests
    needs: [ pre-commit ]
    continue-on-error: ${{ matrix.experimental }}
    strategy:
      fail-fast: false
      matrix:
        toolchain: [ gcc, llvm, intel ]
        json_version: [ v3.11.2, v3.8.0 ]
        experimental: [ false ]
        include:
          - toolchain: llvm
            compiler_version: 15
          - toolchain: gcc
            compiler_version: latest
    env:
      NLOHMANN_JSON_VERSION: ${{ matrix.json_version }}
    runs-on: ubuntu-latest
    container: ghcr.io/nlohmann/json-ci:v2.4.0
    steps:
      - name: Activate Intel compilers
        # Not elegant, it will propagate all environment variable.
        # Intel does not provide a way to output the environment variables to a file
        # Note: PATH needs to be exported to GITHUB_PATH otherwise it can be overwritten
        run: |
          source /opt/intel/oneapi/setvars.sh
          printenv >> $GITHUB_ENV
          echo $PATH >> $GITHUB_PATH
        if: matrix.toolchain == 'intel'
      - name: Setup gcc toolchain
        run: |
          update-alternatives --install /usr/bin/g++ g++ $(which g++-${{ matrix.compiler_version }}) 999
        if: matrix.compiler_version && matrix.toolchain == 'gcc'
      - name: Setup llvm toolchain
        run: |
          update-alternatives --install /usr/bin/clang++ clang++ $(which clang++-${{ matrix.compiler_version }}) 999
        if: matrix.compiler_version && matrix.toolchain == 'llvm'
      - uses: actions/checkout@v3
        # container version is < 3.25 which does not have workflows
      - name: Get a working cmake version
        uses: lukka/get-cmake@v3.25.2
      - name: Run CMake ${{ matrix.toolchain }}-ci workflow with nlohmann/json version ${{ matrix.json_version }}
        uses: lukka/run-cmake@v10.5
        with:
          workflowPreset: "${{ matrix.toolchain }}-ci"
  coverage:
    name: Run coverage tests
    needs: [ test ]
    runs-on: ubuntu-latest
    container: ghcr.io/nlohmann/json-ci:v2.4.0
    if: ${{ github.event_name == 'push' || github.event_name == 'pull_request' }}
    steps:
      - uses: actions/checkout@v3
      - name: Get latest cmake version
        uses: lukka/get-cmake@latest
      - name: Get test coverage
        uses: lukka/run-cmake@v10.5
        with:
          workflowPreset: ci-coverage
      - name: Get lcov data
        uses: danielealbano/lcov-action@v3
        with:
          # Note lcov-action prepends and appends wild-cards *. Account for those
          # https://github.com/danielealbano/lcov-action/issues/11
          remove_patterns: /test/,/cmake-build*/
      - name: Upload coverage to Codecov
        uses: codecov/codecov-action@v3
        with:
          files: coverage.info
          verbose: true