(function() {
  'use strict';

  var linkList = []
  var currentUrl = window.location.href

    function startGettingAllTheLinks(){

        Promise.resolve()
            .then(function(){
                return(1)
            })
            .then(
                function getLinks(pageIndex){
                    var url = currentUrl+'?page='+pageIndex
                    var reqPromise = makeRequest('GET', url, pageIndex).then(function(valueHolderArray){
                        var response = valueHolderArray[0];
                        var pageIndex = valueHolderArray[1];

                        extractLinks(response)
                        console.log('parsed page '+pageIndex)
                    });
                    var promise = Promise.resolve(reqPromise)
                    .catch(function (err) {
                        return(err)
                    })
                    .then(
                        function(err){
                            if(err){
                                if(err.status === 404){
                                    console.log('404 for page '+err.pageIndex+'. Looks like '+err.pageIndex-1+' is the last page.')
                                }else{
                                    console.error('Augh, there was an error!', err.status, err.statusText, err.pageIndex);
                                }
                            }else{
                                return(getLinks(pageIndex + 1)) //recurse
                            }
                        }
                    )

                      return( promise);
                }
            )
            .then(function(){
                console.log('found '+linkList.length+' links')
                for(var i=0; i<linkList.length; i++){
                    console.log(linkList[i])
                }
        })
    }

    startGettingAllTheLinks();

    function extractLinks(response){
        var links = response.querySelectorAll('div.sectionWrapper ul.pornstarsVideos li .title a')
        for(var i=0; i<links.length; i++){
            linkList.push(links[i].href)
        }
    }

  function makeRequest (method, url, pageIndex) {
    return new Promise(function (resolve, reject) {
      var xhr = new XMLHttpRequest();
      xhr.open(method, url);
      xhr.responseType = 'document';
      xhr.onload = function () {
        if (this.status >= 200 && this.status < 300) {
          resolve([xhr.response, pageIndex]);
        } else {
          reject({
            status: this.status,
            statusText: xhr.statusText,
            pageIndex : pageIndex
          });
        }
      };
      xhr.onerror = function () {
        reject({
          status: this.status,
          statusText: xhr.statusText,
          pageIndex : pageIndex
        });
      };
      xhr.send();
    });
    }

})();