cardgen func

package main

import(
	"fmt"
	"math/rand"
	"strconv"
	"time"
)

var cardTypes = []string {
	"ace",
	"king",
	"queen",
	"jack",
	"10",
	"9",
	"8",
	"7",
	"6",
	"5",
	"4",
	"3",
	"2",
}

func main() {
    total := addTotal(3) 
    fmt.Println(total)
}

func reverse(input string) int {
	//do something? return something?
	return 0
}

func skipTurn() {
	//do something? return nothing?
}

func addTotal(cards int) int {
	total := 0
	for i := 0; i < cards; i++ {
		var value int
		kind := RandomString(cardTypes)
		switch(kind) {
			case "4":
				value = reverse(kind)
			case "9":
				skipTurn()
			case "jack":
				value = 10
			case "queen":
				value = 10
			case "king":
				value = -1000
			case "ace":
				value = 1
				//value = 11
				//how do we decide?
			default:
				stringToInt, err := strconv.Atoi(kind)
				if !(err == nil) {
					value = 0
					fmt.Println(err, " - StrConv Failure")
					fmt.Println("Failed Value: ", kind)
				} else {
					value = stringToInt
				}
		}
		total += value
	}
	if total < 0 { return 99 }
	return total
}

func RandomString(options []string) string {
	rand.Seed(time.Now().Unix())
	randNum := rand.Int() % len(options)
	return options[randNum]
}