class Inventory::InventoryController < BaseInventoryController
  load_and_authorize_resource
  def index
    least_stock = "SELECT (CASE WHEN stock_journals.remark != 'out of stock'
                  THEN (SELECT balance FROM stock_journals
                                  WHERE item_code = inventory_definitions.item_code AND remark != 'out of stock'
                                      ORDER BY created_at DESC LIMIT 1) ELSE 0 END)
                                      FROM stock_journals
                                        WHERE stock_journals.item_code = inventory_definitions.item_code
                                      ORDER BY stock_journals.created_at DESC LIMIT 1"

    @inventory_definitions = InventoryDefinition.select("inventory_definitions.*,
   							(CASE WHEN sj.credit IS NULL THEN 0 ELSE sj.credit END) as credit,
   							(CASE WHEN sj.debit IS NULL THEN 0 ELSE sj.debit END) as debit,
   							(#{least_stock}) as balance,"+
                "acc.title as account_name,mi.name as item_name,
                 mii.item_instance_name as instance_name," +
                "mc.name as menu_category_name,mc.id as menu_category_id "
                )
   							.joins(" LEFT JOIN stock_journals sj ON sj.inventory_definition_id=inventory_definitions.id")                
                .joins("JOIN menu_item_instances mii ON mii.item_instance_code = inventory_definitions.item_code" +
                     " JOIN menu_items mi ON mi.id = mii.menu_item_id" +
                     " JOIN menu_categories mc ON mc.id = mi.menu_category_id ")
                .joins(" JOIN accounts acc ON acc.id = mi.account_id")
   							.group("mi.menu_category_id,inventory_definitions.item_code")
                .order("acc.title desc,mi.menu_category_id desc,balance ASC")

  end

#   def self.get_item_query(type)
 
#   query = Sale.select("acc.title as account_name,mi.name as item_name,mii.item_instance_name as instance_name" +
#                      "mc.name as menu_category_name,mc.id as menu_category_id ")

#   query = query.joins("JOIN menu_item_instances mii ON mii.item_instance_code = inventory_definitions.item_code" +
#                      " JOIN menu_items mi ON mi.id = mii.menu_item_id" +
#                      " JOIN menu_categories mc ON mc.id = mi.menu_category_id ")
#   query = query.joins(" JOIN accounts acc ON acc.id = mi.account_id")
#   query = query.group("acc.title,mi.account_id,mi.menu_category_id")
#                .order("acc.title desc, mi.account_id desc, mi.menu_category_id desc")
# end

  def show
    inventory_definition_id = params[:inventory_definition_id]
    inventory = InventoryDefinition.find(inventory_definition_id)

    @stock_journals = StockJournal.where(item_code: inventory.item_code)
    @stock_journals  = Kaminari.paginate_array(@stock_journals).page(params[:page]).per(20)
    
    respond_to do |format|
      format.html
      format.xls
    end
  end

   	#Shop Name in Navbor
	helper_method :shop_detail
	def shop_detail
		@shop = Shop.first
	end
end