chore(workflows, core-flows): Split workflows tooling and definitions (#5705)

packages/workflows-sdk/src/helper/merge-data.ts

@@ -0,0 +1,49 @@
+import { PipelineHandler, WorkflowArguments } from "./pipe"
+import { isObject } from "@medusajs/utils"
+
+/**
+ * Pipe utils that merges data from an object into a new object.
+ * The new object will have a target key with the merged data from the keys if specified.
+ * @param keys
+ * @param target
+ */
+export function mergeData<
+  T extends Record<string, unknown> = Record<string, unknown>,
+  TKeys extends keyof T = keyof T,
+  Target extends "payload" | string = string
+>(keys: TKeys[] = [], target?: Target): PipelineHandler {
+  return async function ({ data }: WorkflowArguments<T>) {
+    const workingKeys = (keys.length ? keys : Object.keys(data)) as TKeys[]
+    const value = workingKeys.reduce((acc, key) => {
+      let targetAcc = { ...(target ? acc[target as string] : acc) }
+      targetAcc ??= {}
+
+      if (Array.isArray(data[key as string])) {
+        targetAcc[key as string] = data[key as string]
+      } else if (isObject(data[key as string])) {
+        targetAcc = {
+          ...targetAcc,
+          ...(data[key as string] as object),
+        }
+      } else {
+        targetAcc[key as string] = data[key as string]
+      }
+
+      if (target) {
+        acc[target as string] = {
+          ...acc[target as string],
+          ...targetAcc,
+        }
+      } else {
+        acc = targetAcc
+      }
+
+      return acc
+    }, {})
+
+    return {
+      alias: target,
+      value: target ? value[target as string] : value,
+    }
+  }
+}