index.js

'use strict';

module.exports = {
  name: require('./package').name,

  contentFor(type, config) {
    let content = '';

    if (type === 'head') {
      let src = '//maps.googleapis.com/maps/api/js';
      let gMapConfig = config['g-map'] || {};
      let params = [];

      if (gMapConfig.key) {
        params.push(`key=${encodeURIComponent(gMapConfig.key)}`);
      }

      if (gMapConfig.version) {
        params.push(`v=${encodeURIComponent(gMapConfig.version)}`);
      }

      if (gMapConfig.client) {
        params.push(`client=${encodeURIComponent(gMapConfig.client)}`);
      }

      if (gMapConfig.channel) {
        params.push(`channel=${encodeURIComponent(gMapConfig.channel)}`);
      }

      if (gMapConfig.libraries && gMapConfig.libraries.length) {
        params.push(`libraries=${encodeURIComponent(gMapConfig.libraries.join(','))}`);
      }

      if (gMapConfig.language) {
        params.push(`language=${encodeURIComponent(gMapConfig.language)}`);
      }

      if (gMapConfig.protocol) {
        src = `${gMapConfig.protocol}:${src}`;
      }

      src = `${src}?${params.join('&')}`;
      content = `<script type="text/javascript" src="${src}"></script>`;

      if (gMapConfig.exclude) {
        content = '';
      }
    }

    return content;
  }
};