Ox.Message.bind(function(event, data, oxid) {
    if (Ox.isUndefined(oxid)) {
        //process messages here
    }
});
Ox.$parent = {
    postMessage: function(event, message) {
        Ox.Message.post(event, message);
        return this;
    },
    onMessage: function() {
        var callback;
        if (Ox.isObject(arguments[0])) {
            Ox.forEach(arguments[0], function(callback, event) {
                Ox.Message.bind(function(evt, data, oxid) {
                    if (Ox.isUndefined(oxid) && event == evt) {
                        callback(data);
                    }
                });
            });
        } else {
            callback = arguments[0];
            Ox.Message.bind(function(event, data, oxid) {
                Ox.isUndefined(oxid) && callback(event, data);
            });
        }
        return this;
    }
};

function getEmbedURL(id, videoURL) {
    var parsed = Ox.parseURL(videoURL),
        parts = parsed.pathname.split('/'),
        item = parts[1],
        points = parts[parts.length - 1].split(','),
        outPoint = points.pop(),
        inPoint = points.pop();
    return parsed.protocol + '//' + parsed.host + '/' + item + '/embed?view=player&id=' + id
        + '&in=' + inPoint + '&out=' + outPoint
        + '&paused=false&showCloseButton=true';
}
function getVideoOverlay(page) {
    var links = embeds.filter(function(embed) {
        return embed.page == page && embed.type =='inline';
    });
    return (editable || links.length) ? {
        beginLayout: function() {
            this.counter = 0;
        },
        endLayout: function() {
        },
        appendImage: function(image) {
            var id = ++this.counter,
                video = links.filter(function(embed) {
                    return embed.id == id;
                })[0],
                $interface, $playButton, $editButton;
            if (editable || video) {
                $interface = Ox.$('<div>')
                    .addClass('interface')
                    .css({
                        left: image.left + 'px',
                        top: image.top + 'px',
                        width: image.width + 'px',
                        height: image.height + 'px'
                    });
                $playButton = Ox.$('<img>')
                    .addClass('button playButton')
                    .attr({
                        src: 'data:image/svg+xml;base64,PHN2ZyB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciIHdpZHRoPSIyNTYiIGhlaWdodD0iMjU2Ij48cG9seWdvbiBwb2ludHM9IjU2LDMyIDI0OCwxMjggNTYsMjI0IiBmaWxsPSIjRkZGRkZGIi8+PC9zdmc+PCEtLXsiY29sb3IiOiJ2aWRlbyIsIm5hbWUiOiJzeW1ib2xQbGF5IiwidGhlbWUiOiJveGRhcmsifS0tPg=='
                    })
                    .hide()
                    .appendTo($interface);
                $editButton = Ox.$('<img>')
                    .addClass('button editButton')
                    .attr({
                        src: 'data:image/svg+xml;base64,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',
                        title: 'Click to add video'
                    })
                    .on({click: edit})
                    .hide()
                    .appendTo($interface);
                if (editable) {
                    $editButton.show();
                }
                if (video) {
                    enableVideoUI();
                }
                this.div.appendChild($interface[0]);
            }
            function play(e) {
                e.preventDefault();
                e.stopPropagation();
                var videoId = 'video' + page + id,
                    $iframe = Ox.$('<iframe>')
                        .on('load', function() {
                            Ox.Message.post($iframe, 'init', {id: $iframe.oxid});
                        })
                        .attr({
                            id: videoId,
                            src: getEmbedURL(videoId, video.src),
                            width: '100%',
                            height: '100%',
                            frameborder: 0
                        })
                        .appendTo($interface);
                Ox.Message.bind(function(event, data, oxid) {
                    if ($iframe.oxid == oxid) {
                        if(event == 'close') {
                            $iframe.remove();
                        }
                    }
                });
                $iframe.postMessage = function(event, data) {
                    Ox.Message.post($iframe, event, data);
                    return $iframe;
                };
                $playButton.hide();
                $editButton.hide();
                return false;
            }
            function edit(e) {
                var url;
                e.preventDefault();
                e.stopPropagation();
                if(window.parent) {
                    Ox.$parent.postMessage('edit', {
                        video: video
                            ? video
                            : {
                                id: id,
                                page: page,
                                src: ''
                            }
                    });
                } else {
                    url = prompt(
                        'Please enter a pan.do/ra video URL, like\n'
                        + 'https://0xdb.org/0315594/00:13:37,00:23:42 or\n'
                        + 'http://pad.ma/A/editor/00:00:00,00:01:00,00:02:00'
                        + (video ? '\n\nTo remove the video, just remove the URL.' : ''),
                        video ? video.src : ''
                    );
                    if (url !== null) {
                        if(!video) {
                            video = {
                                page: page,
                                id: id,
                                src: ''
                            };
                            embeds.push(video);
                        }
                        video.src = url
                        saveVideoOverlay();
                        url !== '' ? enableVideoUI() : disableVideoUI()
                    }
                }

                return false;
            }
            function enableVideoUI() {
                $interface
                    .addClass('video')
                    .attr({title: 'Click to play video'})
                    .on({click: play});
                $playButton.show();
                $editButton.attr({title: 'Click to edit or remove video'});
            }
            function disableVideoUI() {
                $interface
                    .removeClass('video')
                    .attr({title: ''})
                    .off({click: play});
                $playButton.hide();
                $editButton.attr({title: 'Click to add video'});
            }
        }
    } : null;
}

function saveVideoOverlay() {
    console.log('save not implemented, bubble to pan.do/ra?');
}