Cashier Calculator V2

gistfile1.txt

class Register

  attr_reader :complete

  def initialize
    @coffees = [
      {type: "Light", price: 5, ordered: 0},
      {type: "Medium", price: 7.5, ordered: 0},
      {type: "Bold", price: 9.75, ordered: 0}]
    @subtotal = 0
    @complete = false
  end

  def good_coffe_choice?(input)
    (1..3).include?(input.to_i) && !(input =~ /\D/)
  end

  def good_number?(input)
    return false if input =~ /\D/
    true
  end

  def good_tendered?(input)
    if !(input =~ /^(\d*)\.\d{2}$/)
    return false
    end
    true
  end

  def show_menu
    puts "Welcome to James' coffee emporium!\n\n"
    puts "1) Add item - $5.00 - Light Bag"
    puts "2) Add item - $7.50 - Medium Bag"
    puts "3) Add item - $9.75 - Bold Bag"
    puts "4) Complete Sale"
  end

  def select_coffee
    puts "\nMake a selection:"
    input = gets.chomp
    if good_coffe_choice?(input)
      input = input.to_i - 1
      bags_purchased = number_of_bags
      @coffees[input][:ordered] = bags_purchased
      @subtotal += @coffees[input][:price] * bags_purchased
      show_subtotal
    elsif input == '4'
      @complete = true
    else
      puts "Invalid input detected."
    end
  end

  def number_of_bags
    puts 'How many bags?'
    bags_purchased = gets.chomp
    while !good_number?(bags_purchased)
      puts "Invalid number. How many bags?"
      bags_purchased = gets.chomp
    end
    bags_purchased.to_i
  end

  def show_subtotal
    puts "Subtotal: $#{sprintf( "%0.02f", @subtotal)}"
  end

  def sale_complete
    puts "===Sale Complete===\n\n"

    @coffees.each do |coffee|
      if coffee[:ordered] > 0
        puts "$#{sprintf( "%0.02f", coffee[:ordered] * coffee[:price])} - #{coffee[:ordered]} #{coffee[:type]}"
      end
    end

    puts "\nTotal: $#{sprintf( "%0.02f", @subtotal.to_f)}"

    amount_tendered
  end

  def amount_tendered
    puts "\nWhat is the amount tendered?"
    tendered = gets.chomp
    while !good_tendered?(tendered)
      puts "WARNING: Invalid currency detected!"
      puts "What is the amount tendered?"
      tendered = gets.chomp
    end
    if tendered.to_f < @subtotal.to_f
      dif = (subtotal.to_f - tendered.to_f)
      puts "WARNING: Customer still owes $#{sprintf( "%0.02f", dif)}!"
      amount_tendered
    end
    give_change(tendered)
  end

  def give_change(tendered)
    puts "\n===Thank You!==="
    puts "The total change due is $#{sprintf( "%0.02f", (tendered.to_f - @subtotal.to_f))}"
    puts "\n" + Time.now.strftime("%m/%d/%Y %I:%M%p")
    puts "================"
  end
end

gistfile2.txt

# User story 1:
# As James
# I want to be able to enter a kind of coffee and get the price
# so he does not have to enter the price

# Acceptance criteria:
# -When entering a transaction
# -Display a list of coffees with a corresponding number
# -Show the price corresponding to each type of coffee
# -Allow James to select a coffee by its number

# User story 2:
# As James
# I want to choose a coffee and enter how many were purchased
# So that they can be added to the transaction

# Acceptance criteria:
# -james chooses a coffee
# -he is asked how many of the coffees were purchased
# -he gets the total amount of the transaction based on the coffee that was entered
# -the total is added to the transaction
require_relative 'register'

register = Register.new
register.show_menu

while !register.complete
  register.select_coffee
end

register.sale_complete