angular.module('flashy.FeedController', ['ui.router', 'ngAnimate', 'ngWebSocket', 'contenteditable']).

    controller('FeedController', function($scope, $rootScope, $state, $http, $window, $timeout, $stateParams, $websocket, UserService) {
        angular.module('flashy.CardGridController').controller.apply(this, arguments);
        console.log('Hello from feed');

        $scope.refreshCards = function() {
            $http.get('/api/sections/' + $scope.sectionId + '/feed/').
                success(function(data) {
                    console.log(data);
                    $scope.cards = data;
                    $scope.refreshLayout();
                    console.log('success in refresh cards...');
                }).
                error(function(err) {
                    console.log('refresh fail');
                    console.log(err);
                });
        };

        $scope.sortAdd = function(card, array) {
            console.log('sort add');
            array.forEach(function(ele, i, ary) {
                if (ele.score <= card.score) {
                    ary.splice(i, 0, card);
                    return;
                }
            });
        };

        $scope.hide = function(card) {
            console.log('hiding card');
            var found = -1;
            col = $scope.cardTable[card.id].colNum;
            found = $scope.cardCols[col].indexOf(card);
            if (found != -1) {
                $scope.cardCols[col].splice(found, 1);
                console.log('card hidden');
                return col;
            }
            console.log('Error finding card to hide:');
            console.log(card);
            return -1;
        };

        $scope.update = function(id, new_score) {
            card = $scope.cardTable[id].obj;
            if (Math.abs(new_score - card.score) < .0001) {
                console.log('score same, no update required');
                return;
            }
            console.log('updating');
            console.log(card);
            var column = $scope.cardCols[$scope.cardTable[id].colNum];
            var found = column.indexOf(card);
            var i = 0;
            for (; i < column.length; i++)
                if (column[i].score <= new_score) break;
            card.score = new_score;
            if ($scope.$$phase) { // most of the time it is "$digest"
                column.splice(i, 0, column.splice(found, 1)[0]);
            } else {
                $scope.$apply(column.splice(i, 0, column.splice(found, 1)[0]));
            }
        };

        $scope.feed_ws = $websocket($scope.ws_host + '/ws/feed/' + $scope.sectionId + '?subscribe-broadcast');
        $scope.feed_ws.onOpen(function() {
            console.log('deck ws open');
        });

        $scope.feed_ws.onMessage(function(e) {
            data = JSON.parse(e.data);
            console.log('got websocket message ' + e.data);
            console.log(data);
            if (data.event_type == 'new_card') {
                $scope.add(data.flashcard);
            } else if (data.event_type == 'score_change') {
                $scope.update(data.flashcard_id, data.new_score);
            }
        });

        $scope.pushCard = function() {
            var i = 0;
            var blanks = [];
            $('#new-card-input')[0].childNodes.forEach(function(node) {
                if (typeof node.data == 'undefined') {
                    console.log('undefined node');
                }
                node = $(node)[0];
                if (node.tagName == 'B') {
                    var text = $(node).text();
                    console.log(text.length, 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++;
                    if (leftspaces != text.length) blanks.push([i + leftspaces, i + text.length - rightspaces]);
                    i += text.length;
                } else if (!node.data) {
                    console.log('weird node', node);
                    i += $(node).text().length;
                } else {
                    i += node.data.length;
                }
            });
            var myCard = {
                // we can't trim this string because it'd mess up the blanks. Something to fix.
                'text': $('#new-card-input').text(),
                'mask': blanks,
                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);
                    }
                }).
                error(function(error) {
                    console.log('something went wrong pushing a card!');
                });
            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();
                $scope.pushCard();
                listenForC = true;
                return false;
            }
        });
        $('button#blank-selected').click(function() {
            console.log(window.getSelection());
            document.execCommand('bold');
        });
        $scope.refreshCards();

        $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();
        });
    });