package day15

import (
	"fmt"
	"os"
	"strings"
)

func Run() int {
	fmt.Println("hello day 15")
	filename := "day15/input"
	bytes, err := os.ReadFile(filename)
	if err != nil {
		panic(fmt.Sprint("error reading file ", filename))
	}
	text := string(bytes)
	text = strings.TrimSpace(text)
	instructions := strings.Split(text, ",")

	result := 0

	for _, instruction := range instructions {
		result += ASCIIStringHash(instruction)
	}
	return result
}

func ASCIIStringHash(str string) int {
	result := 0
	for _, symb := range str {
		result += int(symb)
		result *= 17
		result %= 256
	}
	return result
}