package utils

import "strings"

func abs(i int) int {
	if i < 0 {
		return -i
	}
	return i
}

func SplitCenter(text string) []string {
	centerIndex := int(len(text) / 2)
	whitespaceFrontIndex := strings.IndexRune(text[centerIndex:], ' ')
	whitespaceBackIndex := strings.LastIndex(text[:centerIndex], " ")
	frontIndex := centerIndex + whitespaceFrontIndex
	frontDiff := 9999
	backDiff := 9999
	if whitespaceFrontIndex < 1 && whitespaceBackIndex < 1 {
		return []string{text}
	}
	if whitespaceFrontIndex >= 0 {
		frontDiff = len(text[:frontIndex]) - len(text[frontIndex:])
	}
	if whitespaceBackIndex >= 0 {
		backDiff = len(text[:whitespaceBackIndex]) - len(text[whitespaceBackIndex:])
	}
	if abs(frontDiff) < abs(backDiff) {
		return []string{strings.TrimSpace(text[:frontIndex]), strings.TrimSpace(text[frontIndex:])}
	}
	return []string{strings.TrimSpace(text[:whitespaceBackIndex]), strings.TrimSpace(text[whitespaceBackIndex:])}
}