Challenge 4

cashier.rb

require './register.rb'
require 'pry'

cashier = Register.new

#Load Inventory List from CSV
cashier.load_products("products.csv")

#Display Menu
#cashier.display_menu

#Make Selection
#cashier.get_selection

#If start new transaction
while cashier.get_item != 'done' do
cashier.get_item_qty
cashier.calculate_subtotal
cashier.add_to_invoice
end

cashier.get_date_time
cashier.add_to_csv

register.rb

require 'csv'
require 'pry'
require 'Date'


class Register
	attr_reader :products, :item, :invoice
	def initialize
		@products = {}
		@invoice = {}
		@subtotal = 0
	end

	def load_products(file)
		CSV.foreach(file, headers: true) do |line| 
  			@products[line["SKU"]] = {name: line["Name"], Retail_Price: line["Retail_Price"], Purchasing_Price: line["Purchasing_Price"]}
		end
	end

	def display_menu
		puts "Please make a selection"
		puts "Enter 1 to start a new transaction!"
		puts "Enter 2 to retrieve a daily report!"
	end

	def get_selection
		puts 'Make Your Selection!'
		@menu_selection = gets.chomp
	end

	def get_item_qty
		puts 'Enter how many!'
		@qty = gets.chomp
	end	

	def get_item
		puts 'Enter an Item!'
		@item = gets.chomp
	end

	def calculate_subtotal
		@subtotal += (@products[@item][:Retail_Price].to_f * @qty.to_f)
	end

	def add_to_invoice
		@invoice[@item] = {} if @invoice[@item].nil?
		@invoice[@item][:type] = @products[@item][:name]
		@invoice[@item][:qty] = 0 if @invoice[@item][:qty].nil?
		@invoice[@item][:qty] += @qty.to_i
	end

	def display_invoice
		puts @invoice
	end

	def get_date_time
		@date = Time.new
		@date = "#{@date.year}#{@date.month}#{@date.day}"
		#@time = "#{@date.hour}#{@date.min}"
	end

	def add_to_csv
		CSV.open("invoices.csv", "a+") do |csv|
			@invoice.each do |key,value|
				csv << ["#{@date}", "#{key}", "#{}"
			end
  		end
  		@invoice = {}
	end

end