name: Internationalization check

on:
  push:
    branches: [master, features]
  pull_request:
    branches: [master, features]

jobs:
  internationalization:
    runs-on: ubuntu-latest

    steps:
    - uses: actions/checkout@v1
    - name: Set up Python
      uses: actions/setup-python@v1
      with:
        python-version: 3.8
    - name: Install dependencies
      run: |
        pip install --upgrade pip pipenv
        pipenv sync -d
    - name: Check i18n
      run: |
        pipenv run python setup.py extract_messages --output-file=/tmp/kosmorro-messages.pot > /dev/null
        diff=$(diff kosmorro/locales/messages.pot /tmp/kosmorro-messages.pot | grep '^>')
        n=$(echo "$diff" | grep -v '> "POT-Creation-Date: ' | wc -l)

        if [ "$(echo "$diff" | grep -E '^"Generated-By: Babel' | wc -l)" -eq "1" ]; then
          echo "❌ You dependencies may be out of date!"
          echo "   Please run the following command to fix this:"
          echo
          echo "     pipenv sync --dev"
          echo
          echo "   Then update the messages file:"
          echo
          echo "     make messages"
          exit 2
        fi

        if [ "$n" -ne "0" ]; then
          echo "❌ The messages file is not up-to-date!"
          echo "   Please run the following command to fix this:"
          echo
          echo "     make messages"
          exit 1
        fi

        echo "✔ Messages file up-to-date."