name: Linter
on: pull_request
jobs:
  ESLint:
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v2
      - uses: actions/setup-node@v2
        with:
            node-version: '16.x'

      - name: Run checks
        run: |
          URL="https://api.github.com/repos/${{ github.repository }}/pulls/${{ github.event.pull_request.number }}/files"
          PR_FILES=$(curl -s -X GET -G $URL | jq -r '.[] | select(.status != "removed") | .filename')
          for files in $PR_FILES; do
            extension="${files##*.}"
            if [[ $extension == 'js' || $extension == 'ts' || $extension == 'jsx' || $extension == 'tsx' ]]; then
              changed_files_eslint+=" ${files}"
            fi
          done

          if [[ ! -z ${changed_files_eslint} ]]; then
            npm ci
            cd tests && npm ci && cd ..
            npm install eslint-detailed-reporter --save-dev --legacy-peer-deps
            mkdir -p eslint_report

            echo "ESLint version: "`npx eslint --version`
            echo "The files will be checked: "`echo ${changed_files_eslint}`
            npx eslint ${changed_files_eslint} -f node_modules/eslint-detailed-reporter/lib/detailed.js -o ./eslint_report/eslint_checks.html
          else
            echo "No files with the \"js|ts|jsx|tsx\" extension found"
          fi

      - name: Upload artifacts
        if: failure()
        uses: actions/upload-artifact@v2
        with:
          name: eslint_report
          path: eslint_report