package main

// helpers.go contains some helper functions for manipulating/processing data
// that doesn't really fit in elsewhere

// matchStringInSlice finds the closes match to 'ndl' in 'hay'
// It starts at the beginning of 'ndl' and matches letters in 'hay' until either
// we've matched the whole 'ndl' or there is only one result left
func matchStringInSlice(ndl string, hay []string) string {
	var nextHay []string

	for i := range ndl {
		for _, p := range hay {
			if p[i] == ndl[i] {
				nextHay = append(hay, p)
			}
		}
		// If we get here and there is only one parameter left, return it
		hay = nextHay
		if len(nextHay) == 1 {
			break
		}
		// Otherwise, loop
		nextHay = []string{}
	}
	if len(hay) == 0 {
		return ""
	}
	return hay[0]
}