define([
  'newsletter_editor/App',
  'underscore',
  'mailpoet',
  'ajax'
], function (App, _, MailPoet) {
  var Module = {};

  Module._query = function (args) {
    return MailPoet.Ajax.post({
      api_version: window.mailpoet_api_version,
      endpoint: 'automatedLatestContent',
      action: args.action,
      data: args.options || {}
    });
  };
  Module._cachedQuery = _.memoize(Module._query, JSON.stringify);

  Module.getNewsletter = function (options) {
    return Module._query({
      action: 'get',
      options: options
    });
  };

  Module.getPostTypes = function () {
    return Module._cachedQuery({
      action: 'getPostTypes',
      options: {}
    }).then(function (response) {
      return _.values(response.data);
    });
  };

  Module.getTaxonomies = function (postType) {
    return Module._cachedQuery({
      action: 'getTaxonomies',
      options: {
        postType: postType
      }
    }).then(function (response) {
      return response.data;
    });
  };

  Module.getTerms = function (options) {
    return Module._cachedQuery({
      action: 'getTerms',
      options: options
    }).then(function (response) {
      return response.data;
    });
  };

  Module.getPosts = function (options) {
    return Module._cachedQuery({
      action: 'getPosts',
      options: options
    }).then(function (response) {
      return response.data;
    });
  };

  Module.getTransformedPosts = function (options) {
    return Module._cachedQuery({
      action: 'getTransformedPosts',
      options: options
    }).then(function (response) {
      return response.data;
    });
  };

  Module.getBulkTransformedPosts = function (options) {
    return Module._query({
      action: 'getBulkTransformedPosts',
      options: options
    }).then(function (response) {
      return response.data;
    });
  };

  Module.saveNewsletter = function (options) {
    return MailPoet.Ajax.post({
      api_version: window.mailpoet_api_version,
      endpoint: 'newsletters',
      action: 'save',
      data: options || {}
    });
  };

  Module.previewNewsletter = function (options) {
    return MailPoet.Ajax.post({
      api_version: window.mailpoet_api_version,
      endpoint: 'newsletters',
      action: 'sendPreview',
      data: options || {}
    });
  };

  App.on('start', function () {
    // Prefetch post types
    Module.getPostTypes();
  });

  return Module;
});