Cashier.rb

require 'pry'
require 'csv'

# class Product
# 	@@all = []

# 	def initialize (item, price)
# 		@item = item
# 		@price = price
# 	end

# 	def name
# 		@item
# 	end

# 	def price
# 		@price
# 	end

# 	def self.create(name, price)
# 		product = Product.new(name, price)
# 		@@all << product
# 		product
# 	end

# 	def self.all
# 		@@all
# 	end
# end

# def inventory
# 	name = "go"
# 	while name != "" do

# 		puts "Enter product name (leave blank to continue):"
# 		name = gets.chomp

# 		if name != ""
# 			puts "Enter product price:"
# 			price = gets.chomp
# 			Product.create(name, price)

# 		end
# 	end

# 	total

# end

def prompt(query,value)
	puts query
	value = gets.chomp
end

def show_inventory
	#Sorry John. I had to do it to 'em
	stock = Hash.new
	CSV.foreach("Inventory.csv", headers: true) do |line|
		stock.store(line["item"], line["price"])
	end
	puts stock
end

def get_data
	prompt "What is the name of the item?",item
	prompt "What is the SKU",sku
	prompt "What do we sell it for?",sell_price
	prompt "What do we buy it for", buy_price
	write_to_inventory(item,sku,sell_price,buy_price)
end

def write_to_inventory (item, sku, sell_price, buy_price)
	File.open("Inventory.csv", 'a+') {|f| f.write(item, sku, sell_price, buy_price)}
end

puts "Would you like to add an item to the inventory?"
reply = gets.chomp.downcase
if reply == "yes"
	get_data
end






binding.pry




$amount_due = 0.0



def total
	#Probably delete
	stock = Hash.new
	CSV.foreach("Inventory.csv", headers: true) do |line|
		stock.store(line["item"], line["sell_price"])
	end


	#List inventory
	#select from inventory
	#select quantity
	#pyotr

	stock.each_with_index do |item, index|
		puts "#{index+1} #{item}"
	end

		binding.pry

	stock.each_with_index do |product,index|
		puts "What product would you like to buy?"
		selection = gets.chomp
		stock[selection]


		quantity = gets.chomp.to_f
		item_total = quantity * product.price.to_f
		$amount_due = $amount_due + item_total
	end
end

def transaction
	puts "The customer owes you $#{"%.2f" % $amount_due}."
	puts "How much money did the customer give you?"
	tendered = gets.chomp.to_f
	if tendered >= $amount_due
		change = tendered-$amount_due
		change = change.to_f
		puts "Please return $#{"%.2f" % change} in change to the customer."
	else
		"The customer did not give you enough cash."
	end
end

total
transaction