labels_controller.rb

class LabelsController < ApplicationController
  respond_to :html, :js, :json
  before_filter :authenticate_user!
  before_filter :get_menu_item_or_redirect, only: [:show]

  def index
    @menu = Menu.get(params[:menu_id].to_i)
    @menu_items = dispensary.active_menu_items.sort_by{|e| [e.category.name.to_s, e.name.to_s.downcase]}
    respond_with @menu
  end

  def show
    @hide_inner_sidebar = true
    dispensary
    params[:count] = 1 if params[:count].blank?
    params[:label_format] ||= (dispensary.dispensary_detail.label_layout.blank? ? '3-10' : dispensary.dispensary_detail.label_layout)
    @visit = Visit.get(params[:visit_id].to_i) if params[:visit_id]
    if !@visit.nil?
      @visit = nil unless dispensary.id == @visit.dispensary_id
    end
    respond_with @menu_item
  end

  def generate_label_pdf
    require 'prawn/layout'
    dispensary
    time_now = SecureRandom.hex
    @menu_item = MenuItem.get_with_deleted(params[:id].to_i) || MenuItem.get_with_deleted(params[:menu_item_ids].try(:first))
    label_type = visit_label? ? :receipt : :menu_item
    pdf = PdfMaker.new(params[:label_format], params[:label_count], label_type)
    filename = pdf.generate_all_labels(menu_item_ids: params[:menu_item_ids], positions: params[:positions], visit_id: params[:visit_id], show_prices: params[:show_prices])

    if filename
      s3u = S3Upload.new(filename, 'labels')
      if (url = s3u.upload)
        return redirect_to(url)
      else
        flash.now[:error] = "There was an error generating the PDF. Please try again in just a minute."
        render :show
      end
    elsif params[:menu_item_ids].present? && @menu_item.present?
      flash.now[:error] = "There was an error generating the PDF. Please try again in just a minute."
      render :show
    else
      redirect_to dispensary_menu_labels_path(dispensary, dispensary.menu), notice: "You did not select any menu items to create labels for."
    end
  end

  def update_labels
    ids = []
    params[:menu_item_ids].each do |id|
      ids << id.to_i
    end
    @menu_items = MenuItem.all(:id => ids)
    respond_with @menu_items
  end

  private

  def dispensary
    @dispensary ||= Dispensary.get(params[:dispensary_id].to_i)
  end

  def get_menu_item_or_redirect
    if @menu_item = MenuItem.get(params[:id].to_i)
      @menu_item
    else
      return(redirect_to dispensary_menu_labels_path(dispensary, dispensary.menu), notice: "This menu item has been deleted")
    end
  end

  def visit_label?
    params[:visit_id].present? # THIS DETERMINES A RECEIPT LABEL FROM A MENU ITEM LABEL
  end
end