package simplemsg

var (
	lastMessage string
	callCount   int
)

func SetMessage(message string) string {
	lastMessage = message
	callCount++
	return "message stored"
}

func GetMessage() (string, int) {
	return lastMessage, callCount
}

func Render(_ string) string {
	if callCount == 0 {
		return "# Simple Message Realm\n\nNo message stored yet."
	}
	return "# Simple Message Realm\n\n- message: " + lastMessage + "\n- updates: " + itoa(callCount) + "\n"
}

// minimal int → string helper to avoid imports
func itoa(n int) string {
	if n == 0 {
		return "0"
	}
	sign := ""
	if n < 0 {
		sign = "-"
		n = -n
	}
	var digits []byte
	for n > 0 {
		digits = append([]byte{byte('0' + n%10)}, digits...)
		n /= 10
	}
	return sign + string(digits)
}