main.go

package main

import (
	"fmt"
	"math/rand"
)

func getName() string {
	name := ""
	fmt.Println("Slot")
	fmt.Printf("Enter your name:")
	_, err := fmt.Scanln(&name)
	if err != nil {
		return ""
	}
	fmt.Printf("Welcome %s, let's play!\n", name)
	return name
}

func getBet(balance uint) uint {
	var bet uint
	for {
		fmt.Printf("Enter your bet, or 0 to quit (balance = $%d:)", balance)
		fmt.Scan(&bet)

		if bet > balance {
			fmt.Println("Bet cannot be larger than balance")
		} else {
			break
		}
	}
	return bet
}

func generateSymbolArray(symbols map[string]uint) []string {
	symbolArr := []string{}
	for symbol, count := range symbols {
		for i := uint(0); i < count; i++ {
			symbolArr = append(symbolArr, symbol)
		}
	}
	return symbolArr
}

func getRandomNumber(min int, max int) int {
	randomNumber := rand.Intn(max-min+1) + min
	return randomNumber
}

func getSpin(reel []string, rows int, cols int) [][]string {
	result := [][]string{}

	for i := 0; i < rows; i++ {
		result = append(result, []string{})
	}

	for col := 0; col < cols; col++ {
		selected := map[int]bool{}
		for row := 0; row < rows; row++ {
			for {
				randomIndex := getRandomNumber(0, len(reel)-1)
				_, exists := selected[randomIndex]
				if !exists {
					selected[randomIndex] = true
					result[row] = append(result[row], reel[randomIndex])
					break
				}
			}
		}
	}
	return result
}

func main() {
	symbols := map[string]uint{
		"A": 4,
		"B": 7,
		"C": 12,
		"D": 20,
	}
	// multipler := map[string]uint{
	// 	"A": 20,
	// 	"B": 10,
	// 	"C": 5,
	// 	"D": 2,
	// }

	symbolArr := generateSymbolArray(symbols)
	spin := getSpin(symbolArr, 3, 3)
	fmt.Println(spin)

	balance := uint(200)
	getName()

	for balance > 0 {
		bet := getBet(balance)
		if bet == 0 {
			break
		}
		balance -= bet
	}
	fmt.Printf("You are left with: $%d.\n", balance)
}