sx-fc/app/pdf/order_summary_pdf.rb

class OrderSummaryPdf < Prawn::Document
  include NumberFormattable
  attr_accessor :label_width,:price_column_width,:page_width, :page_height, :margin, :price_width, :item_width, :header_font_size, :item_font_size,:item_height,:qty_width,:total_width,:item_description_width
  def initialize(print_settings,order, print_status, order_items = nil,alt_name,before_updated_qty)
    self.page_width = print_settings.page_width
    self.page_height = print_settings.page_height
    self.header_font_size = print_settings.header_font_size.to_i
    self.item_font_size = print_settings.item_font_size.to_i
    self.margin = 0
    self.price_width = 40 # No Need for item
    self.qty_width = 40
    self.total_width = 40  # No Need for item
    self.item_width = self.page_width - (self.qty_width - self.margin)
    self.item_height = 15
    self.item_description_width = self.page_width - (self.price_width + self.qty_width + self.total_width)
    self.label_width=90

    super(:margin => [print_settings.heading_space, self.margin, self.margin, self.margin], :page_size => [self.page_width, self.page_height])

    # db font setup
    if print_settings.font != ""
        font_families.update("#{print_settings.font}" => {
            :normal => "public/fonts/#{print_settings.font}.ttf",
            :italic => "public/fonts/#{print_settings.font}.ttf",
            :bold => "public/fonts/#{print_settings.font}.ttf",
            :bold_italic => "public/fonts/#{print_settings.font}.ttf"
        })

        font "#{print_settings.font}"
        fallback_fonts ["Courier", "Helvetica", "Times-Roman"]
    end

    # font "public/fonts/Zawgyi-One.ttf"
    # font "public/fonts/padauk.ttf"

    if !order[0].dining.nil?
      text "#{ order[0].type + '-' + order[0].dining + print_status }", :size => self.header_font_size,:align => :center, :left_margin => -20
    else
      text "#{ print_status }", :size => self.header_font_size,:align => :center, :left_margin => -20
    end

    stroke_horizontal_rule
    move_down 5

    #order_info
    order_info(order[0].order_id, order[0].order_by,order[0].order_at)

    # order items
    if order_items == nil
      order_items(order, alt_name, precision)
    else
      order_items(order_items, alt_name, precision)
    end
  end

  # Write Order Information to PDF
  def order_info(order_no, order_by, order_at)
    #booking ID
    booking_id = get_booking_id(order_no)

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

    move_down 5
    y_position = cursor
    bounding_box([0,y_position], :width => self.item_width, :height => self.item_height) do
        text "OrderNo: #{order_no}", :size => self.item_font_size,:align => :left
    end

    move_down 5
    y_position = cursor
    bounding_box([0,y_position], :width => self.item_width, :height => self.item_height) do
        text "OrderBy: #{order_by} ", :size => self.item_font_size,:align => :left
    end

    move_down 5
    y_position = cursor
    bounding_box([0,y_position], :width => self.item_width, :height => self.item_height) do
        text "Date: #{order_at.utc.getlocal.strftime("%Y-%m-%d %I:%M %p")}", :size => self.item_font_size,:align => :left
    end

    stroke_horizontal_rule

    move_down 10
  end

  # Write Order items to PDF
  def order_items(order_item, alt_name, precision)
    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 => :left
    end

    stroke_horizontal_rule
    move_down 5

    #Add Order Item
    add_order_items(order_item, alt_name, precision)

  end

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

    move_down 5

    order_item.each do|odi|
      # check for item not to show
      # if odi.price != 0
        y_position = cursor

        bounding_box([0,y_position], :width => self.item_width) do
          text "#{odi.item_code} - #{odi.item_name}", :size => self.item_font_size,:align => :left

        end

        bounding_box([self.item_width,y_position], :width => self.qty_width) do
          text "#{number_format(odi.qty, :precision => precision.to_i)}", :size => self.item_font_size,:align => :left
        end

        bounding_box([0,y_position], :width => self.item_width) do
          text "#{odi.item_code} - #{odi.item_name}", :size => self.item_font_size,:align => :left

        end

        if alt_name
          if !(odi.alt_name).empty?
            move_down 4
            # font("public/fonts/NotoSansCJKtc-Regular.ttf") do
              text "(#{odi.alt_name})", :size => self.item_font_size,:align => :left, :inline_format => true
            # end
          end

        end

        # add option
        options = odi.options == "[]"? "" : odi.options

        if options != ""
          move_down 5

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

          move_down 5
        end

        move_down 5

        dash(1, :space => 1, :phase => 1)
        stroke_horizontal_line 0, (self.page_width - self.margin)
        move_down 5
      # end
    end
  end

  def get_booking_id(order_no)
    booking = Booking.joins(" JOIN booking_orders bo ON bo.booking_id = bookings.booking_id")
            .joins(" JOIN orders o ON o.order_id=bo.order_id")
            .where("o.order_id='#{order_no}'")
            .first()

    return booking.booking_id
  end
end