Sarah Clements - Shop Manager Challenge

app.rb

@@ -0,0 +1,114 @@
+require_relative 'lib/database_connection'
+require_relative 'lib/shop_item_repository'
+require_relative 'lib/order_repository'
+
+class Application
+  def initialize(database_name, io, shop_item_repository, order_repository)
+    DatabaseConnection.connect(database_name)
+    @io = io
+    @shop_item_repository = shop_item_repository
+    @order_repository = order_repository
+  end
+
+  def run
+    @io.puts "Welcome to the shop management program!"
+    @io.puts "\n"
+    print_menu
+    @io.puts "\n"
+    choice = @io.gets.chomp
+    @io.puts "\n"
+
+    run_selected_task(choice)    
+  end
+
+  private
+
+  def print_menu
+    @io.puts "What do you want to do?"
+    @io.puts " 1 = list all shop items"
+    @io.puts " 2 = create a new item"
+    @io.puts " 3 = list all orders"
+    @io.puts " 4 = create a new order"
+  end
+
+  def run_selected_task(choice)
+    case choice
+    when "1" then list_shop_items
+    when "2" then add_new_shop_item
+    when "3" then list_orders
+    when "4" then add_new_order
+    else @io.puts "Sorry I didn't understand that."
+    end
+  end
+
+  def list_shop_items
+    @io.puts "Here's a list of all shop items:"
+    @io.puts "\n"
+    @shop_item_repository.all.each do |i|
+      @io.puts "##{i.id} #{i.name} - Unit price: #{i.unit_price} - Quantity: #{i.quantity}"
+    end
+  end
+
+  def add_new_shop_item
+    @io.puts "Please enter the details of the item you want to create"
+    @io.print "Name: "
+    name = @io.gets.chomp
+    @io.print "Unit price: "
+    unit_price = @io.gets.chomp.to_f
+    @io.print "Quantity: "
+    quantity = @io.gets.chomp.to_i
+    create_shop_item(name, unit_price, quantity)
+  end
+
+  def create_shop_item(name, unit_price, quantity)
+    item = ShopItem.new
+    item.name = name
+    item.unit_price = unit_price
+    item.quantity = quantity
+
+    @shop_item_repository.create(item)
+    @io.puts "Item created"
+  end
+
+  def list_orders
+    @io.puts "Here's a list of all orders:"
+    @io.puts "\n"
+    @order_repository.all.each do |order|
+      format_date = DateTime.parse(order.date_placed).strftime '%d/%m/%Y'
+      item_name = @shop_item_repository.find(order.shop_item_id).name
+      @io.puts "* Order id: #{order.id} - Customer name: #{order.customer_name}"
+      @io.puts "  Order for: #{item_name} - Date placed: #{format_date}"
+    end
+  end
+
+  def add_new_order
+    @io.puts "Please enter the order details"
+    @io.print "Customer name: "
+    customer_name = @io.gets.chomp
+    @io.print "Date placed (YYYY-MM-DD HH:MM:SS): "
+    date_placed = @io.gets.chomp
+    @io.print "Shop Item Id: "
+    shop_item_id = @io.gets.chomp
+    create_order(customer_name, date_placed, shop_item_id)
+  end
+
+  def create_order(customer_name, date_placed, shop_item_id)
+    order = Order.new
+    order.customer_name = customer_name
+    order.date_placed = date_placed
+    order.shop_item_id = shop_item_id
+
+    @order_repository.create(order)
+    @io.puts "Order added"
+  end
+end
+
+if __FILE__ == $0
+  app = Application.new(
+    'shop_manager',
+    Kernel,
+    ShopItemRepository.new,
+    OrderRepository.new
+  )
+  app.run
+end