class OrderItemPdf < Prawn::Document
  attr_accessor :receipt_width,:price_column_width,:page_width, :page_height, :margin, :price_width, :item_width, :header_font_size, :item_font_size,:item_height,:qty_width,:item_description_width
  def initialize(order_item, print_settings)
    self.page_width = 300
    self.page_height = 400
    self.margin = 10
    self.price_width = 50
    self.qty_width = 50
    self.item_width = self.page_width - (self.price_width + self.qty_width)
    self.item_height = 15   
    self.item_description_width = self.page_width - (self.price_width + self.qty_width)
    self.receipt_width=130    

    super(:margin => [self.margin, self.margin, self.margin, self.margin], :page_size => [self.page_width, self.page_height])
    # super(:margin => [10, 5, 30, 5], :page_size => [200,400])

    # font "public/fonts/#{font_name}".to_s + ".ttf".to_s
    # font "public/fonts/Zawgyi-One.ttf"
    # font "public/fonts/padauk.ttf"  
    self.header_font_size = 12
    self.item_font_size = 10

    text "#{order_item.dining}", :size => self.header_font_size,:align => :center
    stroke_horizontal_rule
    move_down 5

    #order_info
    order_info(order_item.order_by,order_item.order_at)

    # order items
    order_items(order_item)
  end

  # Write Order Information to PDF
  def order_info(order_by, order_at)    
    y_position = cursor

    bounding_box([0,y_position], :width => self.item_width - 50, :height => self.item_height) do
        text "OrderBy:#{order_by} ", :size => self.item_font_size,:align => :left    
    end

    bounding_box([self.item_width - 50,y_position], :width => self.item_width + 50, :height => self.item_height) do
        text "Date:#{order_at.strftime("%Y-%m-%d %I:%M %p")}", :size => self.item_font_size,:align => :left    
    end

    stroke_horizontal_rule

    move_down 20
  end

  # Write Order items to PDF
  def order_items(order_item)
    y_position = cursor

    bounding_box([0,y_position], :width => self.item_width, :height => self.item_height) do
        text "Item", :size => self.item_font_size,:align => :left
    end

    bounding_box([self.item_width,y_position], :width => self.qty_width, :height => self.item_height) do
        text "Qty", :size => self.item_font_size,:align => :right
    end

    stroke_horizontal_rule
    move_down 5

    #Add Order Item
    add_order_items(order_item)
  end

  # Add order items under order info
  def add_order_items(order_item)
    y_position = cursor

    move_down 5

    bounding_box([0,y_position], :width => self.item_width, :height => self.item_height) do
        text "#{order_item.item_name}", :size => self.item_font_size,:align => :left
    end

    bounding_box([self.item_width,y_position], :width => self.qty_width, :height => self.item_height) do
        text "#{order_item.qty}", :size => self.item_font_size,:align => :right
    end

    move_down 5

  end

end