/**
 * Author: Pexeto
 * All Rights Reserved
 */
var newsSetter = {
    xmlSourceFile: 'news.xml',
    divContainerId: 'news',
    itemsPerPage: 3,
    pageWidth: 464,
    easing: '',
    animationSpeed: 500,
    news: [],
    divContainer: null,
    firstColumn: null,
    wrapper: null,
    pageWrappers: [],
    currentShown: 0,
    init: function (args) {
        for (var key in args) {
            if (typeof args[key] !== 'function') {
                this[key] = args[key]
            }
        }
        this.divContainer = $('#' + this.divContainerId);
        this.parseData()
    },
    parseData: function () {
        $.ajax({
            type: 'GET',
            url: newsSetter.xmlSourceFile,
            dataType: 'xml',
            success: function (xml) {
                newsSetter.itemsPerPage = Number($(xml).find('items_per_page:first').text());
                newsSetter.easing = $(xml).find('animation_easing:first').text();
                newsSetter.animationSpeed = Number($(xml).find('animation_speed:first').text());
                $(xml).find('post').each(function (i) {
                    var current = $(this);
                    var post = {
                        title: current.find('ptitle:first').text(),
                        thumbnail: current.find('thumbnail:first').text(),
                        small_thumbnail: current.find('small_thumbnail:first').text(),
                        date: current.find('date:first').text(),
                        category: current.find('category:first').text(),
                        author: current.find('author:first').text(),
                        content: $('content:first', current).text()
                    };
                    post.obj = $(newsSetter.createPostHtml(post));
                    post.smallObj = $(newsSetter.createSmallPostHtml(post));
                    newsSetter.news.push(post)
                });
                if (newsSetter.news.length > 0) {
                    newsSetter.displayContent()
                }
            }
        })
    },
    createPostHtml: function (post) {
        var html = '<div class="news_post_container"><h2>' + post.title + '</h2><div class="post_info">';
        if (post.date) {
            html += post.date + ' | '
        }
        if (post.category) {
            html += post.category + ' | '
        }
        if (post.author) {
            html += post.author
        }
        html += '</div>';
        if (post.thumbnail) {
            html += '<img src="' + post.thumbnail + '" alt="" class="alignleft rounded_corner shadow" />'
        }
        html += '<p>' + post.content + '</p></div>';
        post.obj = $(html);
        return html
    },
    createSmallPostHtml: function (post) {
        var html = '<div class="prev_post">';
        if (post.small_thumbnail) {
            html += '<img src="' + post.small_thumbnail + '" alt="" class="alignleft rounded_corner shadow" />'
        }
        html += '<h3>' + post.title + '</h3><div class="post_info">';
        if (post.date) {
            html += post.date + ' | '
        }
        if (post.category) {
            html += post.category + ' | '
        }
        if (post.author) {
            html += post.author
        }
        html += '</div></div>';
        return html
    },
    displayContent: function () {
        newsSetter.firstColumn = $('<div class="two_columns_1"></div>');
        var secondColumn = $('<div class="two_columns_2"><div id="news_wrapper"></div></div>');
        newsSetter.divContainer.append(newsSetter.firstColumn);
        newsSetter.divContainer.append(secondColumn);
        newsSetter.wrapper = secondColumn.find('#news_wrapper');
        newsSetter.showPost(newsSetter.news[0]);
        newsSetter.displayPostList();
        tonicSite.setCufon()
    },
    showPost: function (post) {
        newsSetter.firstColumn.html(post.obj)
    },
    displayPostList: function () {
        for (var i = 0; i < newsSetter.news.length; i++) {
            if (i % newsSetter.itemsPerPage === 0) {
                var pageWrapper = $('<div class="news_posts"></div>');
                newsSetter.pageWrappers.push(pageWrapper);
                newsSetter.wrapper.width(newsSetter.wrapper.width() + 500);
                newsSetter.wrapper.append(pageWrapper)
            }
            var post = newsSetter.news[i].smallObj;
            newsSetter.pageWrappers[newsSetter.pageWrappers.length - 1].append(post)
        }
        if (newsSetter.news.length > newsSetter.itemsPerPage) {
            newsSetter.showNavigation()
        }
        newsSetter.setPostClickHandlers()
    },
    showNavigation: function () {
        newsSetter.wrapper.parent().append('<div id="prev_post_nav"><a href="" id="prev_post_l"></a> <a href="" id="prev_post_r"></a></div>');
        var prevButton = newsSetter.wrapper.parent().find('a#prev_post_l');
        var nextButton = newsSetter.wrapper.parent().find('a#prev_post_r');
        nextButton.click(function (event) {
            event.preventDefault();
            if (newsSetter.currentShown < newsSetter.pageWrappers.length - 1) {
                var margin = -(newsSetter.currentShown + 1) * (newsSetter.pageWidth + 20);
                newsSetter.wrapper.animate({
                    marginLeft: [margin, newsSetter.easing]
                }, newsSetter.animationSpeed);
                newsSetter.currentShown++
            }
        });
        prevButton.click(function (event) {
            event.preventDefault();
            if (newsSetter.currentShown !== 0) {
                var margin = -(newsSetter.currentShown - 1) * (newsSetter.pageWidth + 20);
                newsSetter.wrapper.animate({
                    marginLeft: [margin, newsSetter.easing]
                }, newsSetter.animationSpeed);
                newsSetter.currentShown--
            }
        })
    },
    setPostClickHandlers: function () {
        var newsNumber = newsSetter.news.length;
        for (var i = 0; i < newsNumber; i++)(function (i) {
            newsSetter.news[i].smallObj.each(function (j) {
                $(this).bind({
                    'click': function () {
                        var current = newsSetter.news[i];
                        current.obj.hide();
                        newsSetter.firstColumn.html(current.obj);
                        current.obj.fadeIn(700);
                        tonicSite.setRoundedCorners(current.obj.find('img.rounded_corner'));
                        Cufon.replace(current.obj.find('h2'))
                    },
                    'mouseover': function () {
                        $(this).addClass('prev_post_hover');
                        $(this).css({
                            cursor: 'pointer'
                        })
                    },
                    'mouseout': function () {
                        $(this).removeClass('prev_post_hover')
                    }
                })
            })
        })(i)
    }
};