content-generator/lib/templates/generateHtml.js

Easy template generator to manage and save templates by key and languagecode.

'use strict';

const getTemplateById = require('./getTemplateById');
const checkIfTemplateExist = require('./checkIfTemplateExist');
const nunjucks = require('nunjucks');
const htmlToText = require('html-to-text')

const generateHtml = (json, key, lang, callback) => {
  if (!json) {
    const errMsg = 'Function is called without a json object';

    return callback(errMsg);
  }

  if (!key) {
    const errMsg = 'Function is called without a key';

    return callback(errMsg);
  }

  if (!lang) {
    const errMsg = 'Function is called without a language';

    return callback(errMsg);
  }

  checkIfTemplateExist(key, lang, (err, res, id) => {
    if (err) {
      return callback(err);
    }

    if (!res) {
      return callback('The named template is not famous in system');
    }

    getTemplateById(id, (err2, res2) => {
      if (err2) {
        return callback(err2);
      }

      res2.html = nunjucks.renderString(res2.html, json);
      res2.plain = htmlToText.fromString(res2.html);

      callback(null, res2);
    });
  });
};

module.exports = generateHtml;