name: CI

on:
  push:
    branches:
      - master
  pull_request:

jobs:
  build:

    runs-on: ${{ matrix.os }}
    strategy:
      matrix:
        os: [macOS-latest, ubuntu-latest]
        PYTEST_QT_API: [pyqt5, pyqt4v2, pyside2]
        PYTHON_VERSION: ['2.7', '3.6']
        exclude:
          - os: macOS-latest
            PYTEST_QT_API: pyqt4v2
          - os: macOS-latest
            PYTEST_QT_API: pyside2
          - PYTHON_VERSION: '3.6'
            PYTEST_QT_API:  pyqt4v2

    steps:
    - uses: actions/checkout@v1

    - name: Update submodules
      run: |
        git submodule update --init --recursive

    - name: Install system dependencies
      run: |
        if [ "${{ matrix.os }}" = "ubuntu-latest" ]; then
          sudo apt-get install -y coreutils
          sudo apt-get install -y xvfb herbstluftwm
        else
          brew install coreutils
          brew cask install xquartz
        fi

    - name: Set up Miniconda
      run: |
        if [ "${{ matrix.os }}" = "ubuntu-latest" ]; then
          curl -L -o miniconda.sh https://repo.continuum.io/miniconda/Miniconda3-latest-Linux-x86_64.sh
        else
          curl -L -o miniconda.sh https://repo.continuum.io/miniconda/Miniconda3-latest-MacOSX-x86_64.sh
        fi
        bash miniconda.sh -b -p $HOME/miniconda
        rm -f miniconda.sh
        export PATH="$HOME/miniconda/bin:$PATH"
        conda config --set always_yes yes --set changeps1 no
        conda update -q conda
        conda info -a

    - name: Set up Python
      env:
        PYTHON_VERSION: ${{ matrix.PYTHON_VERSION }}
      run: |
        export PATH="$HOME/miniconda/bin:$PATH"
        conda install -y python=$PYTHON_VERSION
        which python
        python --version
        pip --version

    - name: Install dependencies
      run: |
        export PATH="$HOME/miniconda/bin:$PATH"
        if [ "${{ matrix.PYTEST_QT_API }}" = "pyside2" ]; then
          if [ "${{ matrix.PYTHON_VERSION }}" = "2.7" ]; then
            conda install -y 'pyside2!=5.12.4' -c conda-forge
          else
            conda install -y pyside2 -c conda-forge
          fi
        elif [ "${{ matrix.PYTEST_QT_API }}" = "pyqt4v2" ]; then
          conda install -y pyqt=4 -c conda-forge
        else  # pyqt5
          conda install -y pyqt=5
        fi
        conda install -y help2man
        pip install flake8 pytest pytest-qt

    - name: Install main
      run: |
        export PATH="$HOME/miniconda/bin:$PATH"
        pip install .

    - name: Lint with flake8
      run: |
        export PATH="$HOME/miniconda/bin:$PATH"
        flake8 .

    - name: Test with pytest
      env:
        PYTEST_QT_API: ${{ matrix.PYTEST_QT_API }}
      run: |
        # open virtual display
        if [ "${{ matrix.os }}" = "ubuntu-latest" ]; then
          export DISPLAY=:99.0
          /sbin/start-stop-daemon --start --quiet --pidfile /tmp/custom_xvfb_99.pid --make-pidfile --background --exec /usr/bin/Xvfb -- :99 -screen 0 1920x1200x24 -ac +extension GLX +render -noreset
          (herbstluftwm )&
        else
          (sudo Xvfb :99 -ac -screen 0 1024x768x8 )&
        fi
        # run test
        export PATH="$HOME/miniconda/bin:$PATH"
        MPLBACKEND='agg' pytest tests -m 'not gpu'

    - name: Run examples
      env:
        MPLBACKEND: agg
      run: |
        export PATH="$HOME/miniconda/bin:$PATH"

        labelme --help
        labelme --version
        (cd examples/primitives && labelme_json_to_dataset primitives.json && rm -rf primitives_json)
        (cd examples/tutorial && rm -rf apc2016_obj3_json && labelme_json_to_dataset apc2016_obj3.json && python load_label_png.py && git checkout -- .)
        (cd examples/semantic_segmentation && rm -rf data_dataset_voc && ./labelme2voc.py data_annotated data_dataset_voc --labels labels.txt && git checkout -- .)
        (cd examples/instance_segmentation && rm -rf data_dataset_voc && ./labelme2voc.py data_annotated data_dataset_voc --labels labels.txt && git checkout -- .)
        (cd examples/video_annotation && rm -rf data_dataset_voc && ./labelme2voc.py data_annotated data_dataset_voc --labels labels.txt && git checkout -- .)

        pip install lxml  # for bbox_detection/labelme2voc.py
        (cd examples/bbox_detection && rm -rf data_dataset_voc && ./labelme2voc.py data_annotated data_dataset_voc --labels labels.txt && git checkout -- .)

        pip install cython && pip install pycocotools  # for instance_segmentation/labelme2coco.py
        (cd examples/instance_segmentation && rm -rf data_dataset_coco && ./labelme2coco.py data_annotated data_dataset_coco --labels labels.txt && git checkout -- .)

    - name: Run pyinstaller
      run: |
        if [ "${{ matrix.PYTEST_QT_API }}" = "pyqt5" -a "${{ matrix.PYTHON_VERSION }}" = "3.6" ]; then
          export PATH="$HOME/miniconda/bin:$PATH"
          # Build the standalone executable
          pip install 'pyinstaller!=3.4'  # 3.4 raises error
          pyinstaller labelme.spec
          dist/labelme --version
        fi