b-email-chat.js

_sendToServer: function (data) {
            var quotedPart = '',
                user = getCurrentUser(),
                shouldRemoveParticipantIfFail,
                lastMessage;

            if (this.emailModel.get('messages').length ) {
                // сообщения отсортированы в обратном порядке, самый последний – в начале
                lastMessage = this.emailModel.get('messages').find(function (m) {
                    return !!m.id;
                });

                if (lastMessage) {
                    lastMessage = lastMessage.toJSON();
                }

                if (lastMessage && lastMessage.mime.htmlBody) {
                    var date = moment.utc(lastMessage.mime.date).user().format("ddd, MMM, YYYY [at] h:mm"),
                        author = lastMessage.mime.from.name
                            ? lastMessage.mime.from.name + '<' + lastMessage.mime.from.address + '>'
                            : lastMessage.mime.from.address,
                        signature = '<p> On ' + date + ', ' + author + ' wrote:</p>';

                    quotedPart += signature + '<blockquote>' + lastMessage.mime.htmlBody + '</blockquote>'
                }
            }

            var eventData = {
                type: 'Task::AddComment',
                createdAt: moment.user.now(),
                creator: _.extend({}, user, {email: user.emailBox || user.email}),
                // пометка персональности сохраняется только для входящих сообщений адресованных мне
                // recipient: data.recipient,
                text: data.text,
                state: 'pending',
                files: data.files
            },
            requestData = {
                htmlBody: data.text + quotedPart,
                replyToMessageId: lastMessage && lastMessage.messageId,
                attachments: data.files
            };

            if (data.recipient) {
                requestData.toEmails = [{
                    name: data.recipient.fullName || data.recipient.name,
                    address: data.recipient.email
                }];

                shouldRemoveParticipantIfFail = !this.emailModel.get('participants').findWhere({email: data.recipient.email});
                // todo такто нужно добавлять только в случае успеха
                this.emailModel.get('participants').add(data.recipient);
            } else { // берем автора последнего сообщения
                requestData.toEmails = [lastMessage.mime.from];
            }

            var participants = this.emailModel.get('participants').toJSON();

            requestData.ccEmails = participants.filter(function(p) {
                return !_.findWhere(requestData.toEmails, {address: p.email});
            }).map(function(p) {
                return {
                    name: p.fullName || p.name,
                    address: p.email
                }
            });

            return io.uuid(4).done(function(uuid) {
                requestData.tag = eventData.tag = uuid;
                var eventModel = this.model.addEvent(eventData, {parse: false, wasRead: true, appendTo: 'head'});
                // при отправке сообщения сразу скролим в конец
                this._scrollTo({to: 'end'});

                PendingMessagesStore.put(uuid, {
                    tag: uuid,
                    sentAt: moment.utc().toDate(),
                    thread: {
                        id: this.emailModel.id,
                        threadId: this.emailModel.get('threadId')
                    },
                    message: _.extend({}, requestData, {htmlBody: data.text}) // override text w/o quotation part
                });

                return this.postComment(requestData)
                    .done(function () {
                        PendingMessagesStore.removeByTag(uuid);
                    }.bind(this))
                    .fail(function () {
                        shouldRemoveParticipantIfFail && this.emailModel.get('participants').remove(data.recipient.email);
                        eventModel.set('state', 'failed');
                    }.bind(this));
            }.bind(this));
        },