/*
 * Diaspora
 * @author LoeiFy
 * @url http://lorem.in
 */
var Home = location.href,
    Pages = 4,
    xhr,
    xhrUrl = '';

var Diaspora = {

    L: function(url, f, err) {
        if (url == xhrUrl) {
            return false
        }

        xhrUrl = url;

        if (xhr) {
            xhr.abort()
        }

        xhr = $.ajax({
            type: 'GET',
            url: url,
            timeout: 10000,
            success: function(data) {
                f(data)
                xhrUrl = '';
            },
            error: function(a, b, c) {
                if (b == 'abort') {
                    err && err()
                } else {
                    window.location.href = url
                }
                xhrUrl = '';
            }
        })
    },

    P: function() {
        return !!('ontouchstart' in window);
    },

    PS: function() {
        if (!(window.history && history.pushState)) return;

        history.replaceState({u: Home, t: document.title}, document.title, Home)

        window.addEventListener('popstate', function(e) {
            var state = e.state;

            if (!state) return;

            document.title = state.t;

            if (state.u == Home) {
                $('#preview').css('position', 'fixed')
                setTimeout(function() {
                    $('#preview').removeClass('show').addClass('trans')
                    $('#container').show()
                    window.scrollTo(0, parseInt($('#container').data('scroll')))
                    setTimeout(function() {
                        $('#preview').html('')
                        $(window).trigger('resize')
                    }, 300)
                }, 0)
            } else {
                Diaspora.loading()

                Diaspora.L(state.u, function(data) {

                    document.title = state.t;

                    $('#preview').html($(data).filter('#single'))

                    Diaspora.preview()

                    setTimeout(function() { Diaspora.player() }, 0)
                })
            }

        })
    },

    HS: function(tag, flag) {
        var id = tag.data('id') || 0,
            url = tag.attr('href'),
            title = tag.attr('title') || tag.text();

        if (!$('#preview').length || !(window.history && history.pushState)) location.href = url;

        Diaspora.loading()

        var state = {d: id, t: title, u: url};

        Diaspora.L(url, function(data) {

            if (!$(data).filter('#single').length) {
                location.href = url;
                return
            }

            switch (flag) {

                case 'push':
                    history.pushState(state, title, url)
                    break;

                case 'replace':
                    history.replaceState(state, title, url)
                    break;

            }

            document.title = title;

            $('#preview').html($(data).filter('#single'))

            switch (flag) {

                case 'push':
                    Diaspora.preview()
                    break;

                case 'replace':
                    window.scrollTo(0, 0)
                    Diaspora.loaded()
                    break;
            }

            setTimeout(function() {
                Diaspora.player()

                if (flag == 'replace') {
                    $('#top').show()
                }
            }, 0)

        })
    },

    preview: function() {
        setTimeout(function() {
            $('#preview').addClass('show')
            $('#container').data('scroll', window.scrollY)
            setTimeout(function() {
                $('#container').hide()
                setTimeout(function() {
                    $('#preview').css({
                        'position': 'static',
                        'overflow-y': 'auto'
                    }).removeClass('trans')
                    $('#top').show()

                    Diaspora.loaded()
                }, 500)
            }, 300)
        }, 0)
    },

    player: function() {
        var p = $('#audio');

        if (!p.length) {
            $('.icon-play').css({
                'color': '#dedede',
                'cursor': 'not-allowed'
            })
            return
        }

        if (p.eq(0).data("autoplay") == true) {
            p[0].play();
        }

        p.on({
            'timeupdate': function() {
                var progress = p[0].currentTime / p[0].duration * 100;
                $('.bar').css('width', progress + '%');
                if (progress / 5 <= 1) {
                    p[0].volume = progress / 5;
                }else {
                    p[0].volume = 1;
                }
            },
            'ended': function() {
                $('.icon-pause').removeClass('icon-pause').addClass('icon-play')
            },
            'playing': function() {
                $('.icon-play').removeClass('icon-play').addClass('icon-pause')
            }
        })
    },

    loading: function() {
        var w = window.innerWidth;
        var css = '<style class="loaderstyle" id="loaderstyle'+ w +'">'+
            '@-moz-keyframes loader'+ w +'{100%{background-position:'+ w +'px 0}}'+
            '@-webkit-keyframes loader'+ w +'{100%{background-position:'+ w +'px 0}}'+
            '.loader'+ w +'{-webkit-animation:loader'+ w +' 3s linear infinite;-moz-animation:loader'+ w +' 3s linear infinite;}'+
            '</style>';
        $('.loaderstyle').remove()
        $('head').append(css)

        $('#loader').removeClass().addClass('loader'+ w).show()
    },

    loaded: function() {
        $('#loader').removeClass().hide()
    },

    F: function(id, w, h) {
        var _height = $(id).parent().height(),
            _width = $(id).parent().width(),
            ratio = h / w;

        if (_height / _width > ratio) {
            id.style.height = _height +'px';
            id.style.width = _height / ratio +'px';
        } else {
            id.style.width = _width +'px';
            id.style.height = _width * ratio +'px';
        }

        id.style.left = (_width - parseInt(id.style.width)) / 2 +'px';
        id.style.top = (_height - parseInt(id.style.height)) / 2 +'px';
    }

}

$(function() {

    if (Diaspora.P()) {
        $('body').addClass('touch')
    }

    if ($('#preview').length) {

        var cover = {};
        cover.t = $('#cover');
        cover.w = cover.t.attr('width');
        cover.h = cover.t.attr('height');

        ;(cover.o = function() {
            $('#mark').height(window.innerHeight)
        })();

        if (cover.t.prop('complete')) {
            // why setTimeout ?
            setTimeout(function() { cover.t.load() }, 0)
        }

        cover.t.on('load', function() {

            ;(cover.f = function() {

                var _w = $('#mark').width(), _h = $('#mark').height(), x, y, i, e;

                e = (_w >= 1000 || _h >= 1000) ? 1000 : 500;

                if (_w >= _h) {
                    i = _w / e * 50;
                    y = i;
                    x = i * _w / _h;
                } else {
                    i = _h / e * 50;
                    x = i;
                    y = i * _h / _w;
                }

                $('.layer').css({
                    'width': _w + x,
                    'height': _h + y,
                    'marginLeft': - 0.5 * x,
                    'marginTop': - 0.5 * y
                })

                if (!cover.w) {
                    cover.w = cover.t.width();
                    cover.h = cover.t.height();
                }

                Diaspora.F($('#cover')[0], cover.w, cover.h)

            })();

            setTimeout(function() {
                $('html, body').removeClass('loading')
            }, 1000)

            $('#mark').parallax()

            var vibrant = new Vibrant(cover.t[0]);
            var swatches = vibrant.swatches()

            if (swatches['DarkVibrant']) {
                $('#vibrant polygon').css('fill', swatches['DarkVibrant'].getHex())
                $('#vibrant div').css('background-color', swatches['DarkVibrant'].getHex())
            }
            if (swatches['Vibrant']) {
                $('.icon-menu').css('color', swatches['Vibrant'].getHex())
            }

        })

        if (!cover.t.attr('src')) {
            alert('Please set the post thumbnail')
        }

        $('#preview').css('min-height', window.innerHeight)

        Diaspora.PS()

        $('.pview a').addClass('pviewa')

        var T;
        $(window).on('resize', function() {
            clearTimeout(T)

            T = setTimeout(function() {
                if (!Diaspora.P() && location.href == Home) {
                    cover.o()
                    cover.f()
                }

                if ($('#loader').attr('class')) {
                    Diaspora.loading()
                }
            }, 500)
        })

    } else {

        $('#single').css('min-height', window.innerHeight)

        setTimeout(function() {
            $('html, body').removeClass('loading')
        }, 1000)

        window.addEventListener('popstate', function(e) {

            if (e.state) location.href = e.state.u;

        })

        Diaspora.player();

        $('.icon-icon, .image-icon').attr('href', '/')

        $('#top').show()

    }

    $(window).on('scroll', function() {
        if ($('.scrollbar').length && !Diaspora.P() && !$('.icon-images').hasClass('active')) {
            var st = $(window).scrollTop(),
                ct = $('.content').height();

            if (st > ct) {
                st = ct
            }

            $('.scrollbar').width((50 + st) / ct * 100 +'%')

            if (st > 80 && window.innerWidth > 800) {
                $('.subtitle').fadeIn()
            } else {
                $('.subtitle').fadeOut()
            }
        }
    })

    $(window).on('touchmove', function(e) {
        if ($('body').hasClass('mu')) {
            e.preventDefault()
        }
    })

    $('body').on('click', function(e) {
        var tag = $(e.target).attr('class') || '',
            rel = $(e.target).attr('rel') || '';

        if (!tag && !rel) return;

        switch (true) {

            // nav menu
            case (tag.indexOf('switchmenu') != -1):
                window.scrollTo(0, 0)
                $('html, body').toggleClass('mu');

                break;

            // next page
            case (tag.indexOf('more') != -1):
                tag = $('.more');

                if (tag.data('status') == 'loading') {
                    return false
                }

                var num = parseInt(tag.data('page')) || 1;

                if (num == 1) {
                    tag.data('page', 1)
                }

                if (num >= Pages) {
                    return
                }

                tag.html('加载中..').data('status', 'loading')
                Diaspora.loading()

                Diaspora.L(tag.attr('href'), function(data) {
                    var link = $(data).find('.more').attr('href');
                    if (link != undefined) {
                        tag.attr('href', link).html('加载更多').data('status', 'loaded')
                        tag.data('page', parseInt(tag.data('page')) + 1)
                    } else {
                        $('#pager').remove()
                    }

                    $('#primary').append($(data).find('.post'))

                    Diaspora.loaded()
                }, function() {
                    tag.html('加载更多').data('status', 'loaded')
                })

                return false;
                break;

            // home
            case (tag.indexOf('icon-home') != -1):
                if ($('#preview').hasClass('show')) {
                    history.back();
                } else {
                    location.href = "/";
                }
                break;


            // qrcode
            case (tag.indexOf('icon-scan') != -1):
                if ($('.icon-scan').hasClass('tg')) {
                    $('#qr').toggle()
                } else {
                    $('.icon-scan').addClass('tg')
                    $('#qr').qrcode({ width: 128, height: 128, text: location.href}).toggle()
                }
                break;

            // audio play
            case (tag.indexOf('icon-play') != -1):
                $('#audio')[0].play()
                $('.icon-play').removeClass('icon-play').addClass('icon-pause')
                break;

            // audio pause
            case (tag.indexOf('icon-pause') != -1):
                $('#audio')[0].pause()
                $('.icon-pause').removeClass('icon-pause').addClass('icon-play')
                break;


            // history state
            case (tag.indexOf('cover') != -1):
                Diaspora.HS($(e.target).parent(), 'push')
                return false;
                break;

            // history state
            case (tag.indexOf('posttitle') != -1):
                Diaspora.HS($(e.target), 'push')
                return false;
                break;

            // relate post
            case (tag.indexOf('relatea') != -1):
                Diaspora.HS($(e.target), 'replace')
                return false;
                break;

            // relate post
            case (tag.indexOf('relateimg') != -1):
                Diaspora.HS($(e.target).parent(), 'replace')
                return false;
                break;

            // prev, next post
            case (rel == 'prev' || rel == 'next'):
                if (rel == 'prev') {
                    var t = $('#prev_next a')[0].text
                } else {
                    var t = $('#prev_next a')[1].text
                }
                $(e.target).attr('title', t)

                Diaspora.HS($(e.target), 'replace')
                return false;
                break;

            // quick view
            case (tag.indexOf('pviewa') != -1):
                $('body').removeClass('mu')

                setTimeout(function() {
                    Diaspora.HS($(e.target), 'push')
                }, 300)

                return false;
                break;

            default:
                return;
                break;
        }

    })

    console.log("%c Github %c","background:#24272A; color:#ffffff","","https://github.com/Fechin/hexo-theme-diaspora")

})