text: var _ = require('lodash'),
      path = require('path'),
      api = require('../../api'),
      BaseMapGenerator = require('./base-generator'),
      config = require('../../config');
  
  // A class responsible for generating a sitemap from posts and keeping it updated
  function PageMapGenerator(opts) {
      _.extend(this, _.defaults(opts || {}, PageMapGenerator.Defaults));
  
      BaseMapGenerator.apply(this, arguments);
  }
  
  PageMapGenerator.Defaults = {
      // TODO?
  };
  
  // Inherit from the base generator class
  _.extend(PageMapGenerator.prototype, BaseMapGenerator.prototype);
  
  _.extend(PageMapGenerator.prototype, {
      getData: function () {
          return api.posts.browse({
              context: {
                  internal: true
              },
              status: 'published',
              staticPages: true,
              limit: 'all'
          }).then(function (resp) {
              var homePage = {
                      id: 0,
                      name: 'home'
                  };
              return [homePage].concat(resp.posts);
          });
      },
  
      getUrlForDatum: function (post, permalinks) {
          if (post.id === 0 && !_.isEmpty(post.name)) {
              return config.urlFor(post.name, true);
          }
  
          return config.urlFor('post', {post: post, permalinks: permalinks}, true);
      },
  
      getPriorityForDatum: function (post) {
          // TODO: We could influence this with priority or meta information
          return post && post.name === 'home' ? 1.0 : 0.8;
      },
  
      createUrlNodeFromDatum: function (datum) {
          var orig = BaseMapGenerator.prototype.createUrlNodeFromDatum.apply(this, arguments),
              imageUrl,
              imageEl;
  
          // Check for image and add it
          if (datum.image) {
              // Grab the image url
              imageUrl = this.getUrlForImage(datum.image);
              // Create the weird xml node syntax structure that is expected
              imageEl = [
                  {'image:loc': imageUrl},
                  {'image:caption': path.basename(imageUrl)}
              ];
              // Add the node to the url xml node
              orig.url.push({
                  'image:image': imageEl
              });
          }
  
          return orig;
      }
  });
  
  module.exports = PageMapGenerator;
  