'use strict';
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function isObject(val) {
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return val !== null && typeof val === "object";
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}
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function _defu(baseObj, defaults, namespace = ".", merger) {
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if (!isObject(defaults)) {
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return _defu(baseObj, {}, namespace, merger);
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}
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const obj = Object.assign({}, defaults);
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for (const key in baseObj) {
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if (key === "__proto__" || key === "constructor") {
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continue;
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}
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const val = baseObj[key];
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if (val === null || val === void 0) {
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continue;
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}
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if (merger && merger(obj, key, val, namespace)) {
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continue;
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}
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if (Array.isArray(val) && Array.isArray(obj[key])) {
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obj[key] = obj[key].concat(val);
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} else if (isObject(val) && isObject(obj[key])) {
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obj[key] = _defu(val, obj[key], (namespace ? `${namespace}.` : "") + key.toString(), merger);
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} else {
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obj[key] = val;
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}
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}
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return obj;
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}
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function extend(merger) {
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return (...args) => args.reduce((p, c) => _defu(p, c, "", merger), {});
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}
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const defu = extend();
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defu.fn = extend((obj, key, currentValue, _namespace) => {
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if (typeof obj[key] !== "undefined" && typeof currentValue === "function") {
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obj[key] = currentValue(obj[key]);
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return true;
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}
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});
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defu.arrayFn = extend((obj, key, currentValue, _namespace) => {
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if (Array.isArray(obj[key]) && typeof currentValue === "function") {
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obj[key] = currentValue(obj[key]);
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return true;
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}
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});
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defu.extend = extend;
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module.exports = defu;
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