package util

// UniqueNonEmptyElementsOf returns a new slice containing unique non-empty elements from the input slice.
// It removes duplicate elements and empty strings while preserving the order of appearance.
func UniqueNonEmptyElementsOf(s []string) []string {
	// Create a map to store unique elements
	unique := make(map[string]bool)

	// Create a new slice to store the unique non-empty elements
	us := make([]string, 0, len(s))

	for _, elem := range s {
		// Skip empty strings
		if len(elem) == 0 {
			continue
		}

		// Check if the element is already in the unique map
		if !unique[elem] {
			// Add the element to the unique map and the new slice
			unique[elem] = true
			us = append(us, elem)
		}
	}

	return us
}