/* jslint node: true */
'use strict';

const messageArea   = require('../core/message_area.js');
const { get }       = require('lodash');


exports.MessageAreaConfTempSwitcher = Sup => class extends Sup {

    tempMessageConfAndAreaSwitch(messageAreaTag, recordPrevious = true) {
        messageAreaTag = messageAreaTag || get(this, 'config.messageAreaTag', this.messageAreaTag);
        if(!messageAreaTag) {
            return; //  nothing to do!
        }

        if(recordPrevious) {
            this.prevMessageConfAndArea = {
                confTag : this.client.user.properties.message_conf_tag,
                areaTag : this.client.user.properties.message_area_tag,
            };
        }

        if(!messageArea.tempChangeMessageConfAndArea(this.client, messageAreaTag)) {
            this.client.log.warn( { messageAreaTag : messageArea }, 'Failed to perform temporary message area/conf switch');
        }
    }

    tempMessageConfAndAreaRestore() {
        if(this.prevMessageConfAndArea) {
            this.client.user.properties.message_conf_tag = this.prevMessageConfAndArea.confTag;
            this.client.user.properties.message_area_tag = this.prevMessageConfAndArea.areaTag;
        }
    }
};