"use strict";
var __importDefault = (this && this.__importDefault) || function (mod) {
    return (mod && mod.__esModule) ? mod : { "default": mod };
};
Object.defineProperty(exports, "__esModule", { value: true });
const immutable_1 = __importDefault(require("immutable"));
/**
 *  Reduce the difference between a map and its default version
 *  @param {Map} defaultVersion
 *  @param {Map} currentVersion
 *  @return {Map} The properties of currentVersion that differs from defaultVersion
 */
function reducedObject(defaultVersion, currentVersion) {
    if (defaultVersion === undefined) {
        return currentVersion;
    }
    return currentVersion.reduce((result, value, key) => {
        const defaultValue = defaultVersion.get(key);
        if (immutable_1.default.Map.isMap(value)) {
            const diffs = reducedObject(defaultValue, value);
            if (diffs.size > 0) {
                return result.set(key, diffs);
            }
        }
        if (immutable_1.default.is(defaultValue, value)) {
            return result;
        }
        return result.set(key, value);
    }, immutable_1.default.Map());
}
exports.default = reducedObject;