# coding: utf-8

module Thinreports
  module Generator

    module PDF::DrawShape
      # @param [Thinreports::Core::Shape::TextBlock::Internal] shape
      def draw_shape_tblock(shape)
        x, y, w, h = shape.box.values_at('x', 'y', 'width', 'height')

        content = shape.real_value.to_s
        unless content.empty?
          attrs = shape_text_attrs(shape)

          unless shape.multiple?
            content = content.gsub(/\n/, ' ')
            attrs[:single] = true
          end
          text_box(content, x, y, w, h, attrs)
        end
      end

      def draw_shape_pageno(shape, page_no, page_count)
        x, y, w, h = shape.box.values_at('x', 'y', 'width', 'height')

        text_box(shape.build_format(page_no, page_count), x, y, w, h,
                 common_text_attrs(shape.style.svg_attrs))
      end

      # @param [Thinreports::Core::Shape::Basic::Internal] shape
      def draw_shape_image(shape)
        x, y, w, h = shape.style.svg_attrs.values_at('x', 'y', 'width', 'height')

        image_type, image_data = extract_base64_string(shape.style.svg_attrs['xlink:href'])
        base64image(image_type, image_data, x, y, w, h)
      end

      # @param [Thinreports::Core::Shape::ImageBlock::Internal] shape
      def draw_shape_iblock(shape)
        x, y, w, h = shape.box.values_at('x', 'y', 'width', 'height')
        unless blank_value?(shape.src)
          posx = shape.format.position_x
          posy = shape.format.position_y

          image_box(shape.src, x, y, w, h,
                    position_x: posx ? posx.to_sym : nil,
                    position_y: posy ? posy.to_sym : nil)
        end
      end

      # @param [Thinreports::Core::Shape::Text::Internal] shape
      def draw_shape_text(shape)
        x, y, w, h = shape.box.values_at('x', 'y', 'width', 'height')
        text(shape.text.join("\n"), x, y, w, h,
             shape_text_attrs(shape))
      end

      # @param [Thinreports::Core::Shape::Basic::Internal] shape
      def draw_shape_ellipse(shape)
        args = shape.style.svg_attrs.values_at('cx', 'cy', 'rx', 'ry')
        args << common_graphic_attrs(shape.style.svg_attrs)
        ellipse(*args)
      end

      # @param [Thinreports::Core::Shape::Basic::Internal] shape
      def draw_shape_line(shape)
        args = shape.style.svg_attrs.values_at('x1', 'y1', 'x2', 'y2')
        args << common_graphic_attrs(shape.style.svg_attrs)
        line(*args)
      end

      # @param [Thinreports::Core::Shape::Basic::Internal] shape
      def draw_shape_rect(shape)
        args = shape.style.svg_attrs.values_at('x', 'y', 'width', 'height')
        args << common_graphic_attrs(shape.style.svg_attrs) do |attrs|
          attrs[:radius] = shape.style.svg_attrs['rx']
        end
        rect(*args)
      end

    private

      # @param [Thinreports::Core::Shape::Text::Internal, Thinreports::Core::Shape::TextBlock::Internal] shape
      # @return [Hash]
      def shape_text_attrs(shape)
        format = shape.format

        common_text_attrs(shape.style.svg_attrs) do |attrs|
          # Set the :line_height option.
          attrs[:line_height] = format.line_height unless blank_value?(format.line_height)
          # Set the :valign option.
          attrs[:valign]      = shape.style.valign

          if shape.type_of?(:tblock)
            # Set the :overflow option.
            attrs[:overflow] = text_overflow(format.overflow)
            # Set the :word_wrap option
            attrs[:word_wrap] = text_word_wrap(format.word_wrap)
          end
        end
      end
    end

  end
end