text: """
  Copyright (c) 2016-2019 Keith Sterling http://www.keithsterling.com
  
  Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated
  documentation files (the "Software"), to deal in the Software without restriction, including without limitation
  the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software,
  and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
  
  The above copyright notice and this permission notice shall be included in all copies or substantial portions
  of the Software.
  
  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO
  THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
  AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
  TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  """
  from programy.utils.logging.ylogger import YLogger
  
  from programy.utils.newsapi.newsapi import NewsAPI
  from programy.extensions.base import Extension
  
  
  class NewsAPIExtension(Extension):
  
      def get_news_api_api(self, context):
          return  NewsAPI(context.client.license_keys)
  
      def get_news(self, context, source, max_num, sort, reverse):
  
          newsapi = self.get_news_api_api(context)
  
          headlines = newsapi.get_headlines(source, max_num, sort, reverse)
          if headlines is None:
              YLogger.error(context, "NewsAPIExtension no headlines found!")
              return ""
  
          results = newsapi.to_program_y_text(headlines)
          if results is None:
              YLogger.error(context, "NewsAPIExtension no results returned!")
              return ""
  
          return results
  
      def parse_data(self, context, data):
          source = None
          max_num = 10
          sort = False
          reverse = False
  
          splits = data.split()
          count = 0
          while count < len(splits):
              if splits[count] == "SOURCE":
                  count += 1
                  source = splits[count]
              elif splits[count] == "MAX":
                  count += 1
                  max_num = int(splits[count])
              elif splits[count] == "SORT":
                  count += 1
                  if splits[count].upper() == 'TRUE':
                      sort = True
                  elif splits[count].upper() == 'FALSE':
                      sort = False
                  else:
                      YLogger.error(context, "Invalid value for NewAPI Data parameter sort [%s]", splits[count])
                      sort = False
              elif splits[count] == "REVERSE":
                  count += 1
                  if splits[count].upper() == 'TRUE':
                      reverse = True
                  elif splits[count].upper() == 'FALSE':
                      reverse = False
                  else:
                      YLogger.error(context, "Invalid value for NewAPI Data parameter reverse [%s]", splits[count])
                      reverse = False
              else:
                  YLogger.error(context, "Unknown News API Command [%s]", splits[count])
  
              count += 1
  
          return source, max_num, sort, reverse
  
      # execute() is the interface that is called from the <extension> tag in the AIML
      def execute(self, context, data):
  
          source, max_num, sort, reverse = self.parse_data(context, data)
  
          if source is None:
              YLogger.error(context, "NewsAPIExtension no source passed in as data parameter!")
              return ""
  
          return self.get_news(context, source, max_num, sort, reverse)
  