/* Widget displays info on the current segment, with possibility of config for editing description and tags */

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

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

};

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

IriSP.Widgets.CurrentSegmentInfobox.prototype.defaults = {

    annotation_type: "chap",

    editable_segments: false,

    empty_message: false,

    project_id: false,

    api_serializer: "ldt_annotate",

    api_method: "PUT",

    api_endpoint_template: "",

    new_tag_button: true,

    show_headers: false,

    custom_edit_text: false,

    empty_description_placeholder: false,

};

IriSP.Widgets.CurrentSegmentInfobox.prototype.template = 

      '<div class="Ldt-CurrentSegmentInfobox">'

    +   '<div class="Ldt-CurrentSegmentInfobox-SelectedSegment">'

    +     '{{#editable_segments}}<div class="Ldt-CurrentSegmentInfobox-EditButton">{{edit}}</div>{{/editable_segments}}'

    +     '<div class="Ldt-CurrentSegmentInfobox-Element Ldt-CurrentSegmentInfobox-Title">{{title}}</div>'

    +     '<div class="Ldt-CurrentSegmentInfobox-Element Ldt-CurrentSegmentInfobox-Description">{{description}}</div>' 

    +     '{{^description}}{{^tags.length}}{{#description_placeholder}}<div class="Ldt-CurrentSegmentInfobox-Element Ldt-CurrentSegmentInfobox-Description-placeholder">{{description_placeholder}}</div>{{/description_placeholder}}{{/tags.length}}{{/description}}' 

    +     '<div class="Ldt-CurrentSegmentInfobox-Element Ldt-CurrentSegmentInfobox-Tags">'

    +         '{{#tags.length}}'

    +         '<ul class="Ldt-CurrentSegmentInfobox-Tags-Ul">'

    +         '{{#tags}}'

    +             '{{#.}}'

    +             '<li class="Ldt-CurrentSegmentInfobox-Tags-Li">'

    +                 '<span>{{.}}</span>'

    +             '</li>'

    +             '{{/.}}'

    +         '{{/tags}}'

    +         '</ul>'

    +         '{{/tags.length}}'

    +     '</div>'

    +   '</div>'

    + '</div>'

IriSP.Widgets.CurrentSegmentInfobox.prototype.editTemplate = 

      '<div class="Ldt-CurrentSegmentInfobox">'

    +   '<div class="Ldt-CurrentSegmentInfobox-SelectedSegment">'

    +     '{{#headers}}<div class="Ldt-CurrentSegmentInfobox-FieldsHeader">{{fields_header}}</div>{{/headers}}'

    +     '<input type="text" class="Ldt-CurrentSegmentInfobox-Element Ldt-CurrentSegmentInfobox-TitleInput Ldt-CurrentSegmentInfobox-Title" value="{{title}}"></input>'   

    +     '<textarea class="Ldt-CurrentSegmentInfobox-Element Ldt-CurrentSegmentInfobox-DescriptionInput Ldt-CurrentSegmentInfobox-Description">{{description}}</textarea>'

    +     '<div class="Ldt-CurrentSegmentInfobox-Element Ldt-CurrentSegmentInfobox-Tags">'

    +         '{{#headers}}<div class="Ldt-CurrentSegmentInfobox-TagsHeader">{{tags_header}}</div>{{/headers}}'

    +     '{{#new_tag_button}}'

    +         '<div class="Ldt-CurrentSegmentInfobox-CreateTagButton">{{new_tag}}</div>'

    +     '{{/new_tag_button}}'

    +     '{{^new_tag_button}}'

    +         '<input class="Ldt-CurrentSegmentInfobox-CreateTagInput" placeholder="{{new_tag}}"></input>'

    +         '<div class="Ldt-CurrentSegmentInfobox-CreateTagInput-Add">+</div>'

    +     '{{/new_tag_button}}'

    +         '<ul class="Ldt-CurrentSegmentInfobox-Tags-Ul">'

    +         '{{#tags}}'

    +             '{{#.}}'

    +             '<li class="Ldt-CurrentSegmentInfobox-Tags-Li">'

    +                 '<input type="text" class="Ldt-CurrentSegmentInfobox-Tags-Li-Input" value="{{.}}"></input>'

    +                 '<div class="Ldt-CurrentSegmentInfobox-Tags-Li-DeleteTagButton">{{delete_tag}}</div>'

    +             '</li>'

    +             '{{/.}}'

    +         '{{/tags}}'

    +         '</ul>'

    +     '</div>'

    +     '<div class="Ldt-CurrentSegmentInfobox-SubmitButton">{{submit}}</div>'

    +     '<div class="Ldt-CurrentSegmentInfobox-CancelButton">{{cancel}}</div>'

    +   '</div>'

    + '</div>'

IriSP.Widgets.CurrentSegmentInfobox.prototype.messages = {

    fr : {

        submit : "Soumettre",

        cancel : "Annuler",

        edit : "Editer",

        new_tag : "Nouveau tag",

        delete_tag : "Supprimer",

        fields_header : "Commentaire associé à ce segment",

        tags_header : "Mots-clés associés à ce segment",

        empty : "Le player vidéo ne lit actuellement aucun segment"

    },

    en: {

        submit : "Submit",

        cancel : "Cancel",

        edit : "Edit",

        new_tag : "New tag",

        delete_tag : "Delete tag",

        fields_header : "Current segment content",

        tags_header : "Current segment tags",

        empty : "The player currently doesn't read any segment"

    }

}    

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

    var _this = this;

    this.segments = this.getWidgetAnnotations();

    this.renderTemplate();

    this.currentSegment = false;

    this.clearBox();

    this.refresh();

    this.onMediaEvent("timeupdate", "refresh");

    this.onMediaEvent("settimerange", function(_timeRange){

        var _segmentBegin = _timeRange[0],

            _segmentEnd = _timeRange[1],

            _list = _this.segments.filter(function(_segment){

                return _segment.begin.milliseconds == _segmentBegin.milliseconds && _segment.end.milliseconds == _segmentEnd.milliseconds

            });

        if (_list.length >0){

            _this.$.toggleClass("editing", false);

            if (_this.currentSegment.id != _list[0].id){

                _this.currentSegment = _list[0];

                _data = {

                        editable_segments: _this.editable_segments,

                        edit: _this.custom_edit_text ? _this.custom_edit_text : _this.l10n.edit,

                        title: _this.currentSegment.title,

                        description : _this.currentSegment.description,

                        description_placeholder : _this.empty_description_placeholder,

                        tags : _this.currentSegment.getTagTexts()

                }

                _this.$.html(Mustache.to_html(_this.template, _data))

                if(_this.editable_segments&&_this.currentSegment){

                    _this.$.find(".Ldt-CurrentSegmentInfobox").click(_this.functionWrapper("enableEditMode"));            

                }

            }

        }

    });

    if(this.editable_segments&&this.currentSegment){

        this.$.find(".Ldt-CurrentSegmentInfobox").click(_this.functionWrapper("enableEditMode"));        

    }

}

IriSP.Widgets.CurrentSegmentInfobox.prototype.enableEditMode = function() {

    var _this = this;

    if(this.currentSegment){

        _data = {

            title: this.currentSegment.title,

            description : this.currentSegment.description,

            tags : this.currentSegment.getTagTexts(),

            submit : this.l10n.submit,

            cancel : this.l10n.cancel,

            headers : this.show_headers,

            tags_header : this.custom_tags_header ? this.custom_tags_header : this.l10n.tags_header,

            fields_header : this.custom_fields_header ? this.custom_fields_header : this.l10n.fields_header,

            new_tag : this.l10n.new_tag,

            delete_tag : this.l10n.delete_tag,

            new_tag_button : this.new_tag_button,

        }

        this.$.toggleClass("editing", true);

        this.$.html(Mustache.to_html(this.editTemplate, _data));

        this.$.find(".Ldt-CurrentSegmentInfobox-CancelButton").click(this.functionWrapper("disableEditMode"));

        if (this.new_tag_button){

            this.$.find(".Ldt-CurrentSegmentInfobox-CreateTagButton").click(this.functionWrapper("insertTagInput"));            

        } else {

            this.$.find(".Ldt-CurrentSegmentInfobox-CreateTagInput").keypress(this.functionWrapper("insertTagInputKeypress"));

            this.$.find(".Ldt-CurrentSegmentInfobox-CreateTagInput-Add").click(this.functionWrapper("insertTagInputKeypress"));

        }

        this.$.find(".Ldt-CurrentSegmentInfobox-Tags-Li-DeleteTagButton").click(this.functionWrapper("deleteTagInput"));

        this.$.find(".Ldt-CurrentSegmentInfobox-SubmitButton").click(this.functionWrapper("onSubmit"))

    }

}

IriSP.Widgets.CurrentSegmentInfobox.prototype.disableEditMode = function() {

    if(this.currentSegment){

        _data = {

                editable_segments: this.editable_segments,

                edit: this.custom_edit_text ? this.custom_edit_text : this.l10n.edit,

                title: this.currentSegment.title,

                description : this.currentSegment.description,

                description_placeholder : this.empty_description_placeholder,

                tags : this.currentSegment.getTagTexts()

            }

        this.$.toggleClass("editing", false);

        this.$.html(Mustache.to_html(this.template, _data));

        this.$.find(".Ldt-CurrentSegmentInfobox").click(this.functionWrapper("enableEditMode")); 

    }

}

IriSP.Widgets.CurrentSegmentInfobox.prototype.insertTagInput = function() {

    if((!this.currentSegment.getTagTexts().length)&&(!this.$.find(".Ldt-CurrentSegmentInfobox-Tags-Ul").length)){

        this.$.find(".Ldt-CurrentSegmentInfobox-Tags").prepend('<ul class="Ldt-CurrentSegmentInfobox-Tags-Ul"></ul>')

    }

    this.$.find(".Ldt-CurrentSegmentInfobox-Tags-Ul").append(

        '<li class="Ldt-CurrentSegmentInfobox-Tags-Li">'

        +'<input type="text" class="Ldt-CurrentSegmentInfobox-Tags-Li-Input" value=""></input>'

        +'<div class="Ldt-CurrentSegmentInfobox-Tags-Li-DeleteTagButton">'+this.l10n.delete_tag+'</div>'

        +'</li>');

    this.$.find(".Ldt-CurrentSegmentInfobox-Tags-Li-DeleteTagButton").click(this.functionWrapper("deleteTagInput"));

}

IriSP.Widgets.CurrentSegmentInfobox.prototype.insertTagInputKeypress = function(event) {

    var keycode = (event.keyCode ? event.keyCode : event.which);

    if(keycode == '13' || event.type == 'click'){

        if((!this.currentSegment.getTagTexts().length)&&(!this.$.find(".Ldt-CurrentSegmentInfobox-Tags-Ul").length)){

            this.$.find(".Ldt-CurrentSegmentInfobox-Tags").prepend('<ul class="Ldt-CurrentSegmentInfobox-Tags-Ul"></ul>')

        }

        this.$.find(".Ldt-CurrentSegmentInfobox-Tags-Ul").append(

            '<li class="Ldt-CurrentSegmentInfobox-Tags-Li">'

            +'<input type="text" class="Ldt-CurrentSegmentInfobox-Tags-Li-Input" value="'+ this.$.find(".Ldt-CurrentSegmentInfobox-CreateTagInput").val() +'"></input>'

            +'<div class="Ldt-CurrentSegmentInfobox-Tags-Li-DeleteTagButton">'+this.l10n.delete_tag+'</div>'

            +'</li>');

        this.$.find(".Ldt-CurrentSegmentInfobox-Tags-Li-DeleteTagButton").click(this.functionWrapper("deleteTagInput"));

        this.$.find(".Ldt-CurrentSegmentInfobox-CreateTagInput").val("");

        return false;

    }

}

IriSP.Widgets.CurrentSegmentInfobox.prototype.deleteTagInput = function(clickEvent) {

    $(clickEvent.currentTarget).parent().remove();

}

IriSP.Widgets.CurrentSegmentInfobox.prototype.onSubmit = function() {

    new_tags_titles = this.$.find(".Ldt-CurrentSegmentInfobox-Tags-Li-Input").map(function(){

        if($(this).val()){

            return $(this).val()

        }

    });

    new_title = this.$.find(".Ldt-CurrentSegmentInfobox-TitleInput").val()

    new_description = this.$.find(".Ldt-CurrentSegmentInfobox-DescriptionInput").val()

    var _this = this,

        _exportedAnnotations = new IriSP.Model.List(this.player.sourceManager), /* We create an Annotations List to send to the server */

        _export = this.player.sourceManager.newLocalSource({serializer: IriSP.serializers[this.api_serializer]}), /* We create a source object using a specific serializer for export */

        _annotation = new IriSP.Model.Annotation(this.currentSegment.id, _export); /* We create an annotation in the source with a generated ID (param. false) */

    _annotation.setAnnotationType(this.currentSegment.getAnnotationType().id);

    _annotation.setMedia(this.currentSegment.getMedia().id);

    _annotation.setBegin(this.currentSegment.begin);

    _annotation.setEnd(this.currentSegment.end);

    _annotation.created = this.currentSegment.created;

    _annotation.creator = this.currentSegment.creator;

    _annotation.title = new_title /* Title field */

    _annotation.description = new_description /* Description field */

    var _tagIds = IriSP._(new_tags_titles).map(function(_title) {

        var _tags = _this.source.getTags(true).searchByTitle(_title, true);

        if (_tags.length) {

            var _tag = _tags[0];

        }

        else {

            _tag = new IriSP.Model.Tag(_title.replace(/\W/g,'_'), _this.source);

            _tag.title = _title;

            _this.source.getTags().push(_tag);

        }

        return _tag.id;

    });

    _annotation.setTags(_tagIds);

    _annotation.project_id = this.project_id;

    _exportedAnnotations.push(_annotation); /* We add the annotation in the list to export */

    _export.addList("annotation",_exportedAnnotations); /* We add the list to the source object */    

    _url = Mustache.to_html(this.api_endpoint_template, {annotation_id: this.currentSegment.id});

    IriSP.jQuery.ajax({

        url: _url,

        type: this.api_method,

        contentType: 'application/json',

        data: _export.serialize(), /* Source is serialized */

        success: function(_data) {

            _export.getAnnotations().removeElement(_annotation, true); /* We delete the sent annotation to avoid redundancy */

            _export.deSerialize(_data); /* Data deserialization */

            _this.source.merge(_export); /* We merge the deserialized data with the current source data */

            _this.segments.forEach(function(_segment){

                if (_segment.id == _annotation.id){

                    _this.segments.removeElement(_segment)

                }

            })

            _this.segments.push(_annotation)

            _this.currentSegment = _annotation

            _data = {

                    editable_segments: _this.editable_segments,

                    edit: _this.custom_edit_text ? _this.custom_edit_text : _this.l10n.edit,

                    title: _this.currentSegment.title,

                    description : _this.currentSegment.description,

                    description_placeholder : _this.empty_description_placeholder,

                    tags : _this.currentSegment.getTagTexts()

                }

            _this.$.html(Mustache.to_html(_this.template, _data))

            if(_this.editable_segments&&_this.currentSegment){

                _this.$.find(".Ldt-CurrentSegmentInfobox").click(_this.functionWrapper("enableEditMode"));             

            }

            _this.$.toggleClass("editing", false);

        },

        error: function(_xhr, _error, _thrown) {

            IriSP.log("Error when sending annotation", _thrown);

            _export.getAnnotations().removeElement(_annotation, true);

        }

    });

}

IriSP.Widgets.CurrentSegmentInfobox.prototype.refresh = function() {

    if(!this.media.getTimeRange()){

        var _currentTime = this.media.getCurrentTime();

        var _list = this.segments.filter(function(_segment){

            return (_segment.begin <= _currentTime && _segment.end >= _currentTime);

        })

        if (_list.length > 0){

            if (this.currentSegment.id != _list[0].id){

                this.currentSegment = _list[0];

                _data = {

                    editable_segments: this.editable_segments,

                    edit: this.custom_edit_text ? this.custom_edit_text : this.l10n.edit,

                    title: this.currentSegment.title,

                    description : this.currentSegment.description,

                    description_placeholder : this.empty_description_placeholder,

                    tags : this.currentSegment.getTagTexts()

                }

                this.$.html(Mustache.to_html(this.template, _data))

                if(this.editable_segments&&this.currentSegment){

                    this.$.find(".Ldt-CurrentSegmentInfobox").click(this.functionWrapper("enableEditMode"));             

                }

            }

        }

        else {

            this.currentSegment = false;

            this.clearBox();

        }

    }

}

IriSP.Widgets.CurrentSegmentInfobox.prototype.clearBox = function(){

    var _empty_message = this.l10n.empty

    if (this.empty_message) {

        _empty_message = this.empty_message

    }

    this.$.find(".Ldt-CurrentSegmentInfobox").html("<div class='Ldt-CurrentSegmentInfobox-Element Ldt-CurrentSegmentInfobox-NoSegment'>"+_empty_message+"</div>");

}