IriSP.Widgets.MashupPlayer = function(player, config) {

    IriSP.Widgets.Widget.call(this, player, config);

    this.is_mashup = true;

};

IriSP.Widgets.MashupPlayer.prototype = new IriSP.Widgets.Widget();

/* A Popcorn-based player for HTML5 Video, Youtube and Vimeo */

IriSP.Widgets.MashupPlayer.prototype.defaults = {

    aspect_ratio: 14/9,

    player_type: "PopcornPlayer"

}

IriSP.Widgets.MashupPlayer.prototype.draw = function() {

    var _this = this,

        _mashup = this.media,

        _pauseState = true,

        _currentMedia = null,

        _currentAnnotation = null,

        _segmentBegin,

        _segmentEnd,

        _timecode = 0,

        _timedelta;

    function changeCurrentAnnotation() {

        var _annotation = _mashup.getAnnotationAtTime( _timecode );

        if (typeof _annotation === "undefined") {

            if (_currentMedia) {

                _currentMedia.pause();

                if (!_pauseState) {

                    _pauseState = true;

                    _mashup.trigger("pause");

                }

            }

            return;

        }

        if (_annotation !== _currentAnnotation) {

            _currentAnnotation = _annotation;

            _segmentBegin = _currentAnnotation.annotation.begin.milliseconds;

            _segmentEnd = _currentAnnotation.annotation.end.milliseconds;

            _timedelta = _segmentBegin - _currentAnnotation.begin.milliseconds;

            _currentMedia = _currentAnnotation.getMedia();

            for (var _i = 0; _i < _mashup.medias.length; _i++) {

                if (_mashup.medias[_i].id !== _currentMedia.id) {

                    _mashup.medias[_i].hide();

                    _mashup.medias[_i].pause();

                } else {

                    _mashup.medias[_i].show();

                }

            }

    /* PRELOADING */

            var _preloadedMedias = [],

                _toPreload = _mashup.getAnnotations().filter(function(_a) {

                return (_a.begin >= _currentAnnotation.end && _a.getMedia() !== _currentMedia);

            });

            IriSP._(_toPreload).each(function(_a) {

                var _media = _a.getMedia();

                if (IriSP._(_preloadedMedias).indexOf(_media.id) === -1) {

                    _preloadedMedias.push(_media.id);

                    _media.setCurrentTime(_a.annotation.begin.getSeconds());

                    //console.log("Preloading ", _media.id, " at t=", _a.annotation.begin.getSeconds());

                }

            });

    //        console.log("Changed segment: media="+ this.currentMedia.id + ", from=" + this.segmentBegin + " to=" + this.segmentEnd +", timedelta = ", this.timedelta)

    //    } else {

    //        console.log("changeCurrentAnnotation called, but segment hasn't changed");

        }

        _currentMedia.setCurrentTime( _timecode + _timedelta);

        _mashup.trigger("timeupdate", new IriSP.Model.Time(_timecode));

        if (!_pauseState) {

            _currentMedia.play();

        }

    }

    if (!this.height) {

        this.height = Math.floor(this.width/this.aspect_ratio);

        this.$.css({

            height: this.height

        });

    }

    IriSP._(_mashup.medias).each(function(_media) {

        var _el = IriSP.jQuery('<div>');

        _el.css({

            position: "absolute",

            top: 0,

            left: 0,

            height: _this.height,

            width: _this.width

        });

        _this.$.append(_el);

        _this.insertSubwidget(

            _el,

            {

                type: _this.player_type,

                media_id: _media.id,

                height: _this.height,

                width: _this.width,

                url_transform: _this.url_transform

            }

        );

        _media.loadedMetadata = false;

        _media.show = function() {

            _el.show();

        };

        _media.hide = function() {

            _el.hide();

        };

        _media.on("loadedmetadata", function() {

            _media.loadedMetadata = true;

            var _allLoaded = true;

            for (var _i = 0; _i < _mashup.medias.length; _i++) {

                _allLoaded = _allLoaded && _mashup.medias[_i].loadedMetadata;

            }

            if (_allLoaded) {

                changeCurrentAnnotation();

                _mashup.trigger("loadedmetadata");

            }

        });

        _media.on("timeupdate", function(_time) {

            if (!_pauseState && _media === _currentMedia) {

//                var _status = "Timeupdate from " + _media.id + " at time " + _time;

                if ( _time < _segmentEnd ) {

                    if ( _time >= _segmentBegin ) {

                        _timecode = _time - _timedelta;

//                        _status += " within segment";

                    } else {

                        _timecode = _segmentBegin - _timedelta;

                        _media.setCurrentTime(_segmentBegin);

//                        _status += " before segment";

                    }

                } else {

                    _timecode = _segmentEnd - _timedelta;

                    _media.pause();

                    changeCurrentAnnotation();

//                    _status += " after segment";

                }

//                _status += " (" + _this.segmentBegin + " to " + _this.segmentEnd + ")" + ", translated to " + _this.timecode;

//                console.log(_status);

                _mashup.trigger("timeupdate", new IriSP.Model.Time(_timecode));

            }

        });

        _media.on("play", function() {

            if (_media === _currentMedia) {

                _mashup.trigger("play");

            }

        });

        _media.on("pause", function() {

            if (_media === _currentMedia) {

                _mashup.trigger("pause");

            }

        });

    });

    _mashup.getCurrentTime = function() {

        return new IriSP.Model.Time(_timecode);

    }

    _mashup.getVolume = function() {

        return ( _currentMedia ? _currentMedia.getVolume() : .5 );

    }

    _mashup.getPaused = function() {

        return _pauseState;

    }

    _mashup.getMuted = function() {

        return ( _currentMedia ? _currentMedia.getMuted() : false );

    }

    _mashup.setCurrentTime = function(_milliseconds) {

        _timecode = _milliseconds;

        changeCurrentAnnotation();

    }

    _mashup.setVolume = function(_vol) {

        for (var _i = 0; _i < _mashup.medias.length; _i++) {

            _mashup.medias[_i].setVolume(_vol);

        }

    }

    _mashup.mute = function() {

        for (var _i = 0; _i < _mashup.medias.length; _i++) {

            _mashup.medias[_i].mute();

        }

    }

    _mashup.unmute = function() {

        for (var _i = 0; _i < _mashup.medias.length; _i++) {

            _mashup.medias[_i].unmute();

        }

    }

    _mashup.play = function() {

        _pauseState = false;

        changeCurrentAnnotation();

    }

    _mashup.pause = function() {

        _pauseState = true;

        if (_currentMedia) {

            _currentMedia.pause();

        }

    }

    changeCurrentAnnotation();

}