package main

// hasher defines the methods required to hash a string
type hasher struct {
	next int
}

// newHasher returns a hasher type
func newHasher() hasher {
	return hasher{}
}

// run processes each step of the hasher for each char in a string
func (h hasher) run(in string) int {
	hash := 0
	for _, r := range in {
		h.next = hash + int(r)
		hash = h.multiply().modulus()
	}
	return hash
}

func (h hasher) multiply() hasher {
	h.next *= 17
	return h
}

func (h hasher) modulus() int {
	return h.next % 256
}