let request = require ('request');
let Parser = require ('rss-parser');

let parser = new Parser ();

getDataFromRSSFeed = function (url) {
  //let feed = await parser.parseURL(url);
  //console.log(feed.title);
  //feed.items.forEach(item => {
  //  console.log(item.title + ':' + item.link)
  //});
}

getDataFromWPJSON = function (sourceUrl, page = 1, maxPosts = 10) {
  return new Promise ((resolve, reject) => {
    var options = {
      method: 'GET',
      url: `${sourceUrl}/wp-json/wp/v2/posts`,
      qs:{
          page:page,
          per_page:maxPosts
      }
    };

    request (options, (error, response, body)=> {
      if (error) {
        reject (error);
      } else {
        resolve(JSON.parse (body));
      }
    });
  });
}

module.exports = {
  getAnswerFromWP : function (sourceUrl){
    //This function will extract needed data from JSON, which we got from getDataFromWPJSON
    //At the moment, it's taking titles and creates answer
    return new Promise((resolve,reject)=>{
      getDataFromWPJSON(sourceUrl).then(rawData=>{
        let result='';
        rawData.forEach(post=>{
          result += post.title.rendered + '<break time="300ms"/> '
        });
        resolve(result);
      }).catch(err=>{
        reject(err);
      });
    });
  }
}