erizo-fr/erizo-mail-server

'use strict';
var MODULE_NAME = 'imapHelper';

var logger = require('log4js').getLogger(MODULE_NAME);
var Q = require('q');

module.exports.getSentBox = function * (connection) {
    return yield module.exports.getSpecialBox(connection, '\\Sent');
};

module.exports.getTrashBox = function * (connection) {
    return yield module.exports.getSpecialBox(connection, '\\Trash');
};

module.exports.getSpecialBox = function * (connection, specialAttribute) {
    logger.debug('Getting special box: ' + specialAttribute);
    let boxes = yield Q.ninvoke(connection, 'getBoxes');
    let specialBoxList = findBoxBySpecialAttribute(boxes, specialAttribute);
    
    let specialBox = specialBoxList[0];
    if(! specialBox) {
        logger.debug('No special box found');
    } else {
        logger.debug('Box ' + specialAttribute + ' found : ' + specialBox.path);
    }
    return specialBox;
};

function findBoxBySpecialAttribute(boxes, attribute, path) {
    let matchingBoxes = [];
    for (let boxName in boxes) {
        if (boxes.hasOwnProperty(boxName)) {
            let box = boxes[boxName];

            //Add path into box
            box.path = path ? path + boxName : boxName;

            //Add box if it match
            let specialAttributes = box.special_use_attrib;
            if (specialAttributes && specialAttributes.indexOf(attribute) !== -1) {
                matchingBoxes.push(box);
            }
            
            //Add children
            if(box.children) {
                let newPath = box.path + (box.delimiter || '+');
                let res = findBoxBySpecialAttribute(box.children, attribute, newPath);
                matchingBoxes.concat(res);
            }
        }
    }
    return matchingBoxes;
}