# frozen_string_literal: true

module Thinreports
  module Generator
    class PDF
      module Drawer
        class List < Base
          # @param (see PDF::Drawer::Base#initialize)
          def initialize(pdf, format)
            super
            @sections = {}
          end

          # @param [Thinreports::Core::Shape::List::PageState] list_page
          # rubocop:disable Metrics/AbcSize
          def draw(list_page)
            draw_section(list_page.header) if list_page.header
            list_page.rows.each do |row|
              draw_section(row)
            end

            # Returns Thinreports::Report::Page object
            manager = list_page.parent.manager

            list_id = list_page.id.to_s
            manager.format.shapes.each do |id, shape|
              next unless list_pageno?(list_id, shape)

              shape = manager.final_shape(id)
              @pdf.draw_shape_pageno(shape.internal,
                                     list_page.no, list_page.manager.page_count)
            end
          end

          private

          # @param [String] list_id
          # @param [Thinreports::Core::Shape::Base::Format] shape
          # @return [Boolean]
          def list_pageno?(list_id, shape)
            shape.type == Thinreports::Core::Shape::PageNumber::TYPE_NAME &&
              shape.target == list_id
          end

          # @param [Thinreports::Core::Shape::List::SectionInterface] section
          def draw_section(section)
            internal = section.internal

            base_top = @format.section_base_position_top(internal.section_name)
            position = [internal.relative_left, base_top + internal.relative_top]

            drawer(internal).draw(section, position)
          end

          # @param [Thinreports::Core::Shape::List::SectionInternal] section
          # @return [Thinreports::Generator::PDF::Drawer::ListSection]
          def drawer(section)
            @sections[section.section_name] ||= ListSection.new(@pdf, section)
          end
        end
      end
    end
  end
end