# frozen_string_literal: false

# Trident hash configurations.
#
# These methods should never need to be called directly.
# @private
class USPSFlags
  class Core
    module Icons
      class TridentParts
        module Hashes
          def delta_hash
            <<~SVG
              <polyline mask="url(#delta-mask)" fill="#{@color_code}" points="#{delta_mask_points(@trident_config[:center_point], @trident_config[:height][:d], @trident_config[:delta_from_bottom])}" />
              <mask id="delta-mask">
                <g>
                  <rect x="0" y="0" width="#{USPSFlags::Config::BASE_FLY}" height="#{USPSFlags::Config::BASE_FLY}" fill="#FFFFFF" />
                  <polyline transform="scale(#{@trident_config[:delta_gap_scale]}) translate(#{@trident_config[:delta_gap_x]},#{@trident_config[:delta_gap_y]})" fill="#000000" points="#{delta_points(@trident_config[:center_point], @trident_config[:height][:d], @trident_config[:delta_from_bottom])}" />
                </g>
              </mask>
            SVG
          end

          def delta_mask_points(center, height, bottom)
            top = @top_point + height - bottom
            <<~SVG
              #{center}, #{top - @trident_config[:delta_height]}
              #{center + @trident_config[:width] / 2}, #{top}
              #{center - @trident_config[:width] / 2}, #{top}
              #{center}, #{top - @trident_config[:delta_height]}
            SVG
          end

          def delta_points(center, height, bottom)
            top = @top_point + height - bottom - @trident_config[:delta_height]
            mid = @top_point + height - bottom * 17 / 20
            <<~SVG
              #{center}, #{top}
              #{center + @trident_config[:width] / 2}, #{mid}
              #{center - @trident_config[:width] / 2}, #{mid}
              #{center}, #{top}
            SVG
          end

          def circle_hash
            center = @trident_config[:center_point]
            <<~SVG
              <circle cx="#{center}" cy="#{@top_point + @circle_from_top}" r="#{@trident_config[:width] / 2}" fill="#{@color_code}" mask="url(#circle-mask)" />
              <mask id="circle-mask">
                <g>
                  <rect x="0" y="0" width="#{USPSFlags::Config::BASE_FLY}" height="#{USPSFlags::Config::BASE_FLY}" fill="#FFFFFF" />
                  <circle cx="#{center}" cy="#{@top_point + @circle_from_top}" r="#{@trident_config[:width] / 2 - @trident_config[:bar_width]}" fill="#000000" />
                </g>
              </mask>
              <mask id="circle-mask-for-main-spike">
                <g transform="scale(1.05) translate(-@trident_config[:br_width], -@trident_config[:br_width]/2)">
                  <rect x="0" y="0" width="#{USPSFlags::Config::BASE_FLY}" height="#{USPSFlags::Config::BASE_FLY}" fill="#FFFFFF" />
                  <circle cx="#{center}" cy="#{@top_point + @circle_from_top}" r="#{@trident_config[:width] / 2 - @trident_config[:bar_width]}" fill="#000000" />
                </g>
              </mask>
            SVG
          end

          def standard_hash
            x_pos = (@trident_config[:center_point] - @trident_config[:hash_width] / 2)
            svg = "<path d=\"M #{x_pos} #{(@top_point + @hash_from_top)}\n"
            @lower_hash.each { |x, y| svg << "l #{x} #{y}\n" }
            svg << "\" fill=\"#{@color_code}\" />\n"

            svg
          end
        end
      end
    end
  end
end