var request = require("request");
var cheerio = require("cheerio");
var fs = require("fs");
var Q = require('q');
var images = [];
var prod = [];
var nazov = [];

request('http://www.orava.eu/produkty/led-televizory/vsetky-televizory', function(err, resp, body){

  if(!err && resp.statusCode == 200) {
    var req = cheerio.load(body);
       req('span.catItemImage').children().each(function(){
           var link = req(this).attr('href');
        prod.push('http://www.orava.eu' + link);
    });

    var results = [];
    prod.forEach(processUrl);
    function processUrl(url) {
      //we use deferred object so we can know when the request is done
      var deferred = Q.defer();

      var result = {
        url: url,
        promise: deferred.promise
      };
      results.push(result);


request(url, function(err, resp, body){
  if(!err && resp.statusCode == 200) {
    var $ = cheerio.load(body);
      $('.itemTitle').each(function(){
         var name = $(this).children().text();
         nazov.push(name);
         deferred.resolve(nazov);
         result.nazov = nazov;
      });
       $('a.sigProLink', 'div.itemImageGallery').each(function(){
         var url = $(this).attr('href');
        images.push('http://www.orava.eu' + url);
        deferred.resolve(images);
        result.images = images;
    });
  }
  fs.writeFile("output.txt", JSON.stringify({nazov, images}, null, 4), function(err){
    if(err) {
      console.log(err);
    }
    else {
      console.log("Data boli pridane");
    }
  })
});
Q.all(results.map(function(i){i.promise}))
    .then(sendResponse) //when all promises are done it calls this
    .catch(sendError);  //if any promise fails it calls this

 function sendError(error){
   res.status(500).json({failed: error});
 }
 function sendResponse(data){ //data = response from every resolve call
  //process results and convert to your response
  return res.send(results);
}
}
}
});

/*

*/