Utility for merging pending puts

utils/GunSmith/misc.js

@@ -0,0 +1,45 @@
+/**
+ * @format
+ */
+// @ts-check
+
+// TODO: Check if merge() is equivalent to what gun does. But it should be.
+const merge = require('lodash/merge')
+
+/// <reference path="./GunT.ts" />
+
+/**
+ * @param {GunT.ValidDataValue[]} values
+ * @returns {GunT.ValidDataValue}
+ */
+const mergePuts = values => {
+  /**
+   * @type {GunT.ValidDataValue}
+   * @example
+   * x.put({ a: 1 })
+   * x.put('yo')
+   * assertEquals(await x.then(), 'yo')
+   * x.put({ b: 2 })
+   * assertEquals(await x.then(), { a: 1 , b: 2 })
+   */
+  const lastObjectValue = {}
+
+  /** @type {GunT.ValidDataValue} */
+  let finalResult = {}
+
+  for (const val of values) {
+    if (typeof val === 'object' && val !== null) {
+      finalResult = {}
+      merge(lastObjectValue, val)
+      merge(finalResult, lastObjectValue)
+    } else {
+      finalResult = val
+    }
+  }
+
+  return finalResult
+}
+
+module.exports = {
+  mergePuts
+}