From ada824fd8ebdb13e9abf4fd373a0b4a9876ab065 Mon Sep 17 00:00:00 2001
From: joshuaboud <joshuaboud@hotmail.com>
Date: Thu, 26 May 2022 14:46:43 -0300
Subject: [PATCH] add function to assign to nested objects with fallbacks

---
 .../src/functions/assignObjectRecursive.js    | 22 +++++++++++++++++++
 1 file changed, 22 insertions(+)
 create mode 100644 navigator-vue/src/functions/assignObjectRecursive.js

diff --git a/navigator-vue/src/functions/assignObjectRecursive.js b/navigator-vue/src/functions/assignObjectRecursive.js
new file mode 100644
index 0000000..8aa1c78
--- /dev/null
+++ b/navigator-vue/src/functions/assignObjectRecursive.js
@@ -0,0 +1,22 @@
+const isObject = (obj) => typeof obj === 'object' && !Array.isArray(obj) && obj !== null;
+
+/**
+ * Assign target to source with Object.assign(), filling in any missing properties from defaults
+ * 
+ * @param {Object} target - target object
+ * @param {Object} source - source object
+ * @param {Object} defaults - fallback values if source is missing any properties
+ * @returns {Object} - the target object
+ */
+function assignObjectRecursive(target, source, defaults = {}) {
+	Object.assign(target, defaults, source);
+	for (const key in defaults) {
+		if (isObject(defaults[key]) && isObject(source[key])) {
+			target[key] = {};
+			assignObjectRecursive(target[key], source[key], defaults[key]);
+		}
+	}
+	return target;
+}
+
+export default assignObjectRecursive;