'use strict';

pandora.ui.home = function() {

    var self = {},

        that = $('<div>')
            .addClass('OxScreen')
            .css({
                backgroundColor: 'white',
                height: '100%',
                opacity: 0,
                overflowY: 'auto',
                position: 'absolute',
                width: '100%',
                zIndex: 1001
            }),

        $box = $('<div>')
            .css({
                left: 0,
                margin: '0 auto',
                position: 'absolute',
                right: 0,
                top: '32px',
                width: '800px'
            })
            .appendTo(that),

        homeMenuCenterCSS = {
            height: 'auto',
            left: 0,
            margin: '0 auto',
            position: 'absolute',
            right: 0,
            top: '300px',
            width: '320px'
        },
        homeMenuLeftCSS = {
            margin: '',
            right: '',
            left: '32px',
            position: 'absolute',
            top: '32px',
            width: '128px'
        },

        $menu = $('<div>')
            .attr({
                id: 'homeMenu'
            })
            .css(homeMenuCenterCSS)
            .appendTo(that),

        $counter = $('<div>')
            .attr({
                id: 'homeCounter'
            })
            .css({
                position: 'absolute',
                right: '32px',
                top: '32px',
                width: '128px'
            })
            .appendTo(that),

        $logo = Ox.Element({
                element: '<img>'
            })
            .addClass('selected')
            .attr({
                id: 'homeLogo',
                src: '/static/png/logo.png'
            })
            .css({
                height: 'auto',
                left: 0,
                margin: '0 auto',
                position: 'absolute',
                right: 0,
                top: 0,
                width: '320px'
            })
            .bind({
                click: function() {
                    if (!$logo.hasClass('selected')) {
                        $logo.css({opacity: 1});
                        renderPage('home');
                    }
                },
                mouseenter: function() {
                    if (!$logo.hasClass('selected')) {
                        $logo.css({opacity: 0.5});
                    }
                },
                mouseleave: function() {
                    if (!$logo.hasClass('selected')) {
                        $logo.css({opacity: 1});
                    }
                }
            })
            .appendTo($box),

        $title = Ox.Element({
                element: '<img>'
            })
            .css({
                display: 'none',
                height: '40px',
                left: 0,
                margin: '0 auto',
                position: 'absolute',
                right: 0,
                top: '280px'
            })
            .appendTo($box),

        $text_es = $('<div>')
            .css({
                display: 'none',
                fontFamily: 'Home Arabic',
                fontSize: '13px',
                lineHeight: '18px',
                marginRight: '8px',
                position: 'absolute',
                textAlign: 'right',
                top: '360px',
                width: '392px'
            })
            .appendTo($box),

        $text_en = $('<div>')
            .css({
                display: 'none',
                fontFamily: 'Home English',
                fontSize: '12px',
                left: '400px',
                lineHeight: '17px',
                marginLeft: '8px',
                position: 'absolute',
                top: '360px',
                width: '392px'
            })
            .appendTo($box),

        $tutorials = $('<div>')
            .css({
                display: 'none',
                left: '-128px',
                marginLeft: '8px',
                marginBottom: '32px',
                position: 'absolute',
                top: '392px',
                width: '1024px',
                height: '288px'
            }).appendTo($box),

        $enterButton = Ox.Element({
                element: '<img>'
            })
            .attr({
                src: '/static/png/enter.png'
            })
            .css({
                cursor: 'url(/static/png/cursor.png) 4 12, auto',
                height: '32px',
                left: 0,
                margin: '0 auto',
                position: 'absolute',
                right: 0,
            })
            .bind({
                click: function() {
                    var page = pandora.user.ui.page == 'home' ? '' : pandora.user.ui.page;
                    /*
                    if (pandora.user.level == 'guest') {
                        page = 'signup'
                    }
                    */
                    pandora.UI.set({
                        page: page,
                        section: 'items'
                    });
                    that.fadeOutScreen();
                },
                mouseenter: function() {
                    $enterButton.css({opacity: 0.5});
                },
                mouseleave: function() {
                    $enterButton.css({opacity: 1});
                }
            })
            .appendTo($menu),

        $aboutButton = Ox.Element({
                element: '<img>'
            })
            .attr({
                src: '/static/png/about.png'
            })
            .css({
                cursor: 'pointer',
                height: '32px',
                left: 0,
                margin: '0 auto',
                position: 'absolute',
                right: 0,
                top: '48px'
            })
            .bind({
                click: function() {
                    renderPage('about');
                },
                mouseenter: function() {
                    $aboutButton.css({opacity: 0.5});
                },
                mouseleave: function() {
                    $aboutButton.css({opacity: 1});
                }
            })
            .appendTo($menu),

        $tutorialButton = Ox.Element({
                element: '<img>'
            })
            .attr({
                src: '/static/png/tutorial.png'
            })
            .css({
                cursor: 'pointer',
                height: '32px',
                left: 0,
                margin: '0 auto',
                position: 'absolute',
                right: 0,
                top: '84px'
            })
            .bind({
                click: function() {
                    renderPage('tutorial');
                },
                mouseenter: function() {
                    $tutorialButton.css({opacity: 0.5});
                },
                mouseleave: function() {
                    $tutorialButton.css({opacity: 1});
                }
            })
            .appendTo($menu),

        $contactButton = Ox.Element({
                element: '<img>'
            })
            .attr({
                src: '/static/png/contact.png'
            })
            .css({
                cursor: 'pointer',
                height: '32px',
                left: 0,
                margin: '0 auto',
                position: 'absolute',
                right: 0,
                top: '120px'
            })
            .bind({
                click: function() {
                    renderPage('contact');
                },
                mouseenter: function() {
                    $contactButton.css({opacity: 0.5});
                },
                mouseleave: function() {
                    $contactButton.css({opacity: 1});
                }
            })
            .appendTo($menu),

        $counterImage = Ox.Element({
                element: '<img>'
            })
            .attr({
                src: '/static/png/counter.png'
            })
            .css({
                height: '64px',
                position: 'absolute',
                right: 0,
                top: '40px'
            })
            .appendTo($counter),

        text,
        loadedCSS = false;

    function getText(callback) {
        var text = {};
        Ox.getAsync([
            '/static/txt/about.ar.txt',
            '/static/txt/about.en.txt',
            '/static/txt/tutorial.ar.txt',
            '/static/txt/tutorial.en.txt',
            '/static/txt/contact.ar.txt',
            '/static/txt/contact.en.txt'
        ], Ox.get, function(data) {
            Object.keys(data).forEach(function(key) {
                text[key.slice(12, -4)] = data[key].replace(/\n/g, '<br/>')
                    + '<br/><br/><br/>';
            })
            pandora.api.find({}, function(result) {
                var seconds = result.data.duration | (858 * 3600)
                text.hours = Math.round(seconds / 3600).toString();
                callback(text);
            });
        });
    }

    function renderCounter() {
        Ox.forEach(text.hours, function(value, index) {
            Ox.Element()
                .css({
                    border: '2px solid black',
                    fontFamily: 'Home English',
                    fontSize: '32px',
                    fontWeight: 'bold',
                    height: '43px',
                    paddingTop: '5px',
                    position: 'absolute',
                    right: 24 + (text.hours.length - index) * 22 + 'px',
                    width: '20px'
                })
                .html(value)
                .appendTo($counter);
        });
    }

    function renderPage(page) {
        if (page == 'home') {
            $logo.addClass('selected').css({cursor: 'default'});
            $title.css({display: 'none'});
            $text_es.css({display: 'none'});
            $text_en.css({display: 'none'});
            $tutorials.html('').hide();
            $menu.css(homeMenuCenterCSS);
        } else {
            $menu.css(homeMenuLeftCSS);
            $logo.removeClass('selected').css({cursor: 'pointer'});
            $title.attr({
                src: '/static/png/' + page + '.png'
            })
            .css({
                display: 'block'
            });
            $text_es.css({
                display: 'block'
            }).html(
                text[page + '.es']
            );
            $text_en.css({
                display: 'block'
            }).html(
                text[page + '.en']
            );
            if (page == 'contact') {
                Ox.forEach(
                    document.querySelectorAll('a[href="/contact"]'),
                    function(link) {
                        link.addEventListener('click', function(e) {
                            pandora.UI.set({page: 'contact'});
                            that.fadeOutScreen();
                            e.preventDefault();
                            return false;
                        })
                    }
                );
            }
        }
    }

    function loadCSS(callback) {
        if (loadedCSS) {
            callback()
        } else {
            Ox.getFile('/static/css/home.css', function() {
                loadedCSS = true
                callback()
            })
        }
    }

    that.fadeInScreen = function() {
        loadCSS(function() {
            that.appendTo(Ox.$body).animate({opacity: 1}, 500, function() {
                getText(function(data) {
                    text = data;
                    renderCounter();
                    that.find('*').animate({opacity: 1}, 250, function() {
                        // ...
                    });
                });
            });
        });
        return that;
    };

    that.fadeOutScreen = function() {
        $('.OxTooltip').remove();
        that.animate({opacity: 0}, 500, function() {
            that.remove();
        });
        pandora.$ui.tv && pandora.$ui.tv.unmute().find('.OxControls.OxVolume').hide();
        self.keydown && Ox.$document.off({keydown: self.keydown});
        return that;
    };

    that.showScreen = function(callback) {
        var $elements = that.find('*'), count = 0;
        $box.css({top: '80px'});
        $menu.css({top: '80px'});
        $counter.css({top: '80px'});
        getText(function(data) {
            text = data;
            renderCounter();
            loadCSS(function() {
                that.css({opacity: 1}).appendTo(Ox.$body);
                $box.animate({top: '32px'}, 500, function() {
                    $elements.animate({opacity: 1}, 250, function() {
                        if (++count == $elements.length) {
                            // ...
                            // callback && callback();
                        }
                    });
                });
                //$menu.animate({top: '32px'}, 500);
                $menu.animate({top: homeMenuCenterCSS.top}, 500);
                $counter.animate({top: '32px'}, 500);
                callback && callback();
            });
        });
        return that;
    };

    return that;

};