class OrdersController < Spree::BaseController
  rescue_from ActiveRecord::RecordNotFound, :with => :render_404
  helper :products

  respond_to :html

  def show
    @order = Order.find_by_number!(params[:id])
    respond_with(@order)
  end

  def update
    @order = current_order
    if @order.update_attributes(params[:order])
      @order.line_items = @order.line_items.select {|li| li.quantity > 0 }
      fire_event('spree.order.contents_changed')
      respond_with(@order) { |format| format.html { redirect_to cart_path } }
    else
      respond_with(@order)
    end
  end

  # Shows the current incomplete order from the session
  def edit
    @order = current_order(true)
  end

  # Adds a new item to the order (creating a new order if none already exists)
  #
  # Parameters can be passed using the following possible parameter configurations:
  #
  # * Single variant/quantity pairing
  # +:variants => {variant_id => quantity}+
  #
  # * Multiple products at once
  # +:products => {product_id => variant_id, product_id => variant_id}, :quantity => quantity +
  # +:products => {product_id => variant_id, product_id => variant_id}}, :quantity => {variant_id => quantity, variant_id => quantity}+
  def populate
    @order = current_order(true)

    params[:products].each do |product_id,variant_id|
      quantity = params[:quantity].to_i if !params[:quantity].is_a?(Hash)
      quantity = params[:quantity][variant_id.to_i].to_i if params[:quantity].is_a?(Hash)
      @order.add_variant(Variant.find(variant_id), quantity) if quantity > 0
    end if params[:products]

    params[:variants].each do |variant_id, quantity|
      quantity = quantity.to_i
      @order.add_variant(Variant.find(variant_id), quantity) if quantity > 0
    end if params[:variants]

    fire_event('spree.cart.add')
    fire_event('spree.order.contents_changed')
    respond_with(@order) { |format| format.html { redirect_to cart_path } }
  end

  def empty
    if @order = current_order
      @order.line_items.destroy_all
    end

    respond_with(@order) { |format| format.html { redirect_to cart_path } }
  end

  def accurate_title
    @order && @order.completed? ? "#{Order.model_name.human} #{@order.number}" : I18n.t(:shopping_cart)
  end
end