angular.module('flashy.FeedController',
      ['ui.router',
          'ngAnimate',
          'ngWebSocket',
          'contenteditable',
          'flashy.DeckFactory']).controller('FeedController',
      function($scope, $rootScope, $state, $http, $window, $timeout, $stateParams, $websocket, $interval, UserService, Flashcard, Deck) {

          angular.module('flashy.CardGridController').CardGridController.apply(this, arguments);

          (function drawCols() {
              $interval(function() {
                  if ($scope.cardColsShow != $scope.cardCols) {
                      $scope.cardColsShow = $scope.cardCols;
                      console.log('interval');
                  }
              }, 1000);
          }());

          $scope.updateCardScore = function(card) {

              console.log($scope.cardCols, card);
              // if no colNum is attached, then this doesn't exist on the feed yet
              if (!card.colNum) return;

              $scope.cardCols[card.colNum].sort(function(a, b) {

                  return b.score - a.score;
              });

              $scope.updateColRanks($scope.cardCols[card.colNum]);

          };

          $scope.feed_ws = $websocket($scope.ws_host + '/ws/feed/' + sectionId + '?subscribe-broadcast');

          $scope.feed_ws.onMessage(function(e) {

              data = JSON.parse(e.data);

              console.log('message', data);

              if (data.event_type == 'new_card') {

                  $scope.addCardToGrid(new Flashcard(data.flashcard, $scope.deck));

              } else if (data.event_type == 'score_change') {

                  card = new Flashcard(data.flashcard);

                  card.score = data.flashcard.score;
                  $scope.updateCardScore(card);

              }

          });

          $scope.pushCard = function() {

              var myCard = {

                  // we can't trim this string because it'd mess up the blanks. Something to fix.
                  'text': $('#new-card-input').text(),

                  'mask': $scope.newCardBlanks,

                  section: $scope.section.id

              };

              if (myCard.text == '') {
                  console.log('blank flashcard not pushed:' + myCard.text);

                  return closeNewCard();

              }

              $http.post('/api/flashcards/', myCard).

                  success(function(data) {

                      console.log('flashcard pushed: ' + myCard.text);

                      if (!UserService.hasVerifiedEmail()) {
                          Materialize.toast("<p>Thanks for contributing! However, others won't see your card until you verify your email address<p>", 4000);
                      }

                  });

              return $scope.closeNewCardModal();

          };

          /* Key bindings for the whole feed window. Hotkey it up! */

          var listenForC = true;

  
          // Need to pass these options into openmodal and leanmodal,
          // otherwise the ready handler doesn't get called
  
          modal_options = {
              dismissible: true, // Modal can be dismissed by clicking outside of the modal
              opacity: 0, // Opacity of modal background
              in_duration: 300, // Transition in duration
              out_duration: 200, // Transition out duration

              ready: function() {

                  $('#new-card-input').focus();

                  document.execCommand('selectAll', false, null);

              }
          };

          $(document).keydown(function(e) {

              var keyed = e.which;

              if (keyed == 67 && listenForC) { // "c" for compose

                  $scope.openNewCardModal();

                  e.preventDefault();

                  return false;

              } else if (keyed == 27) { // clear on ESC

                  $scope.closeNewCardModal();

              }
          });

          $scope.openNewCardModal = function() {

              $('#newCard').openModal(modal_options);
              listenForC = false;
              $('#new-card-input').html('Write a flashcard!');

          };

          $scope.closeNewCardModal = function() {

              listenForC = true;
              $('#new-card-input').html('').blur();
              $('#newCard').closeModal(modal_options);
          };

          $('.tooltipped').tooltip({delay: 50});
          // the "href" attribute of .modal-trigger must specify the modal ID that wants to be triggered
          $('.modal-trigger').leanModal(modal_options);

          $('#new-card-input').on('keydown', function(e) {

              if (e.which == 13) {
                  e.preventDefault();

                  if ($scope.submit_enabled) {
                      $scope.pushCard();
                      listenForC = true;
                  }

                  return false;

              } else {

              }
          });

          $('button#blank-selected').click(function() {

              console.log(window.getSelection());
              document.execCommand('bold');

          });

          $scope.newCardBlanks = [];

          $scope.refreshNewCardInput = function() {

              $scope.newCardText = $('#new-card-input').text();
              $scope.submit_enabled = $scope.newCardText.length >= 5 && $scope.newCardText.length <= 160;

              var i = 0;

              $scope.newCardBlanks = [];

              $('#new-card-input')[0].childNodes.forEach(function(node) {

                  node = $(node)[0];
                  if (node.tagName == 'B') {
                      var text = $(node).text();

                      var leftspaces = 0, rightspaces = 0;
                      // awful way to find the first non-space character from the left or the right. thanks.js
                      while (text[leftspaces] == ' ' || text[leftspaces] == '\xa0') leftspaces++;
                      while (text[text.length - 1 - rightspaces] == ' ' || text[text.length - 1 - rightspaces] == '\xa0') rightspaces++;

                      console.log(leftspaces, text.length);

                      if (leftspaces != text.length) $scope.newCardBlanks.push([i + leftspaces, i + text.length - rightspaces]);
                      i += text.length;
                  } else if (!node.data) {

                      i += $(node).text().length;
                  } else {
                      i += node.data.length;
                  }
              });

              $scope.newCardBlanks.sort(function(a, b) {

                  return a[0] - b[0];
              });

              i = 0;

              newtext = '';

              $scope.newCardBlanks.forEach(function(blank) {

                  newtext += $scope.newCardText.slice(i, blank[0]);
                  newtext += '<b>' + $scope.newCardText.slice(blank[0], blank[1]) + '</b>';
                  i = blank[1];
              });
              newtext += $scope.newCardText.slice(i);
              //$scope.newCardFormattedText = newtext;

          };

          $scope.shuffleCards = function() {
              $timeout(function() {
                  (function(o) {

                      for (var j, x, i = o.length; i; j = Math.floor(Math.random() * i), x = o[--i], o[i] = o[j], o[j] = x);
                      return o;
                  })($scope.cardCols[0]);
              });
          };

          $scope.$on('$destroy', function() {

              $scope.feed_ws.close();
          });

          return $http.get('/api/sections/' + sectionId + '/feed/').

              success(function(data) {
                  console.log(data);
                  $scope.cards = data.map(function(card) {
                      return new Flashcard(card, $scope.deck);
                  });
                  $scope.refreshLayout().then(function() {
                      $timeout($scope.refreshColumnWidth).then(function() {
                          $scope.showGrid = true;
                      });
                      console.log('layout done');
                  });
              });

      });