func DeepMerge()

in mmv1/api/product.go [294:363]
59 lines of code
16 McCabe index (conditional complexity)

func DeepMerge(arr1, arr2 reflect.Value) {
	if arr1.Len() == 0 {
		arr1.Set(arr2)
		return
	}
	if arr2.Len() == 0 {
		return
	}

	// Scopes is an array of standard strings. In which case return the
	// version in the overrides. This allows scopes to be removed rather
	// than allowing for a merge of the two arrays
	if arr1.Index(0).Kind() == reflect.String {
		arr1.Set(arr2)
		return
	}

	// Merge any elements that exist in both
	for i := 0; i < arr1.Len(); i++ {
		currentVal := arr1.Index(i)
		pointer := currentVal.Kind() == reflect.Ptr
		if pointer {
			currentVal = currentVal.Elem()
		}
		var otherVal reflect.Value
		for j := 0; j < arr2.Len(); j++ {
			currentName := currentVal.FieldByName("Name").Interface()
			tempOtherVal := arr2.Index(j)
			if pointer {
				tempOtherVal = tempOtherVal.Elem()
			}
			otherName := tempOtherVal.FieldByName("Name").Interface()

			if otherName == currentName {
				otherVal = tempOtherVal
				break
			}
		}
		if otherVal.IsValid() {
			Merge(currentVal, otherVal)
		}
	}

	// Add any elements of arr2 that don't exist in arr1
	for i := 0; i < arr2.Len(); i++ {
		otherVal := arr2.Index(i)
		pointer := otherVal.Kind() == reflect.Ptr
		if pointer {
			otherVal = otherVal.Elem()
		}

		found := false
		for j := 0; j < arr1.Len(); j++ {
			currentVal := arr1.Index(j)
			if pointer {
				currentVal = currentVal.Elem()
			}
			currentName := currentVal.FieldByName("Name").Interface()
			otherName := otherVal.FieldByName("Name").Interface()

			if otherName == currentName {
				found = true
				break
			}
		}
		if !found {
			arr1.Set(reflect.Append(arr1, arr2.Index(i)))
		}
	}
}