(function(context,$) {

  "use strict";

  context.JK = context.JK || {};
  context.JK.AccountProfileSamples = function(app) {
    var $document = $(document);
    var logger = context.JK.logger;
    var EVENTS = context.JK.EVENTS;
    var api = context.JK.Rest();
    var ui = new context.JK.UIHelper(JK.app);
    var user = {};
    var profileUtils = context.JK.ProfileUtils;

    var $screen = $('#account-profile-samples');

    // online presences
    var $website = $screen.find('#website');
    var $soundCloudUsername = $screen.find('#soundcloud-username');
    var $reverbNationUsername = $screen.find('#reverbnation-username');
    var $bandCampUsername = $screen.find('#bandcamp-username');
    var $fandalismUsername = $screen.find('#fandalism-username');
    var $youTubeUsername = $screen.find('#youtube-username');
    var $facebookUsername = $screen.find('#facebook-username');
    var $twitterUsername = $screen.find('#twitter-username');

    // performance samples
    var $soundCloudRecordingUrl = $screen.find('#soundcloud-recording');
    var $youTubeVideoUrl = $screen.find('#youtube-video');

    var $jamkazamSampleList = $screen.find('.samples.jamkazam');
    var $soundCloudSampleList = $screen.find('.samples.soundcloud');
    var $youTubeSampleList = $screen.find('.samples.youtube');

    // buttons
    var $btnAddJkRecording = $screen.find('#btn-add-jk-recording');
    var $btnAddSoundCloudRecording = $screen.find('#btn-add-soundcloud-recording');
    var $btnAddYouTubeVideo = $screen.find('#btn-add-youtube-video');

    var $btnCancel = $screen.find('#account-edit-profile-cancel');
    var $btnBack = $screen.find('#account-edit-profile-back');
    var $btnSubmit = $screen.find('#account-edit-profile-submit');

    function beforeShow(data) {
    }

    function afterShow(data) {
      $.when(api.getUserProfile())
        .done(function(userDetail) {
          renderPresence(userDetail);
          renderSamples(userDetail);
        });
    }

    function renderPresence(user) {
      $website.val(user.website);

      // SoundCloud
      var presences = profileUtils.soundCloudPresences(user.online_presences);
      if (presences && presences.length > 0) {
        $soundCloudUsername.val(presences[0].username);
      }

      // ReverbNation
      presences = profileUtils.reverbNationPresences(user.online_presences);
      if (presences && presences.length > 0) {
        $reverbNationUsername.val(presences[0].username);
      }

      // Bandcamp
      presences = profileUtils.bandCampPresences(user.online_presences);
      if (presences && presences.length > 0) {
        $bandCampUsername.val(presences[0].username);
      }

      // Fandalism
      presences = profileUtils.fandalismPresences(user.online_presences);
      if (presences && presences.length > 0) {
        $fandalismUsername.val(presences[0].username);
      }

      // YouTube
      presences = profileUtils.youTubePresences(user.online_presences);
      if (presences && presences.length > 0) {
        $youTubeUsername.val(presences[0].username);
      }

      // Facebook
      presences = profileUtils.facebookPresences(user.online_presences);
      if (presences && presences.length > 0) {
        $facebookUsername.val(presences[0].username);
      }

      // Twitter
      presences = profileUtils.twitterPresences(user.online_presences);
      if (presences && presences.length > 0) {
        $twitterUsername.val(presences[0].username);
      }
    }

    function renderSamples(user) {

      // JamKazam recordings
      var samples = profileUtils.jamkazamSamples(user.performance_samples);
      if (samples) {
        $.each(samples, function(index, val) {

        });
      }

      // SoundCloud recordings
      samples = profileUtils.soundCloudSamples(user.performance_samples);
      if (samples) {
        $.each(samples, function(index, val) {

        });
      }

      // YouTube videos
      samples = profileUtils.youTubeSamples(user.performance_samples);
      if (samples) {
        $.each(samples, function(index, val) {

        });
      }
    }

    function events() {

      // buttons
      $btnAddJkRecording.click(function(evt) {
        evt.preventDefault();
        ui.launchRecordingSelectorDialog('', function(selectedRecordings) {

        });

        return false;
      });

      $btnAddSoundCloudRecording.click(function(evt) {
        var url = $soundCloudRecordingUrl.val();
        if (url.length > 0) {
          if (extractSoundCloudUrlParts(url)) {
            // add to list
          }
        }
      });

      $btnAddYouTubeVideo.click(function(evt) {
        var url = $youTubeVideoUrl.val();
        if (url.length) {
          if (extractYouTubeUrlParts(url)) {
            // add to list
          }
        }
      });

      $btnCancel.click(function(evt) {
        evt.stopPropagation();
        navigateTo('/client#/profile/' + context.JK.currentUserId);
        return false;
      });

      $btnBack.click(function(evt) {
        evt.stopPropagation();
        navigateTo('/client#/account/profile/interests');
        return false;
      });

      $btnSubmit.click(function(evt) {
        if (validate()) {
          handleUpdateProfile();
        }
        return false;
      });
    }

    function validate() {
      // website
      if ($.trim($website.val()).length > 0) {

      }

      // SoundCloud
      if ($.trim($soundCloudUsername.val()).length > 0) {
        
      }

      // ReverbNation
      if ($.trim($reverbNationUsername.val())) {

      }

      return true;
    }

    function navigateTo(targetLocation) {
      context.location = targetLocation;
    }

    function addOnlinePresence(presenceArray, username, type) {
      if ($.trim($soundCloudUsername.val()).length > 0) {
        presenceArray.push({
          service_type: type,
          username: username
        });
      }
    }

    function addPerformanceSamples(sampleArray, $samplesSelector, type) {
      var sampleTable = $samplesSelector.find('table');
      // loop over rows, extracting service id, description, and url
    }

    function handleUpdateProfile() {

      // extract online presences
      var op = [];
      var presenceTypes = profileUtils.ONLINE_PRESENCE_TYPES;
      addOnlinePresence(op, $soundCloudUsername.val(), presenceTypes.SOUNDCLOUD.description);
      addOnlinePresence(op, $reverbNationUsername.val(), presenceTypes.REVERBNATION.description);
      addOnlinePresence(op, $bandCampUsername.val(), presenceTypes.BANDCAMP.description);
      addOnlinePresence(op, $fandalismUsername.val(), presenceTypes.FANDALISM.description);
      addOnlinePresence(op, $youTubeUsername.val(), presenceTypes.YOUTUBE.description);
      addOnlinePresence(op, $facebookUsername.val(), presenceTypes.FACEBOOK.description);
      addOnlinePresence(op, $twitterUsername.val(), presenceTypes.TWITTER.description);

      // extract performance samples
      var ps = [];
      var performanceSampleTypes = profileUtils.SAMPLE_TYPES;
      addPerformanceSamples(ps, $jamkazamSampleList, performanceSampleTypes.JAMKAZAM);
      addPerformanceSamples(ps, $soundCloudSampleList, performanceSampleTypes.SOUNDCLOUD);
      addPerformanceSamples(ps, $youTubeSampleList, performanceSampleTypes.YOUTUBE);

      // api.updateUser({
      //   website: $website.val(),
      //   online_presences: op,
      //   performance_samples: ps
      // })
      // .done(postUpdateProfileSuccess)
      // .fail(postUpdateProfileFailure);
    }

    function postUpdateProfileSuccess(response) {
      $document.triggerHandler(EVENTS.USER_UPDATED, response);
      context.location = "/client#/profile/" + context.JK.currentUserId;
    }

    function postUpdateProfileFailure(xhr, textStatus, errorMessage) {

      var errors = JSON.parse(xhr.responseText)

      if(xhr.status == 422) {

      }
      else {
        app.ajaxError(xhr, textStatus, errorMessage)
      }
    }

    function initialize() {
      var screenBindings = {
        'beforeShow': beforeShow,
        'afterShow': afterShow
      };

      app.bindScreen('account/profile/samples', screenBindings);

      events();
    }

    this.initialize = initialize;
    this.beforeShow = beforeShow;
    this.afterShow = afterShow;
    return this;
  };

})(window,jQuery);