# frozen_string_literal: true

require "zip"

module Ezdoc
  class Package
    def initialize(document)
      @document = document
    end

    def save(path)
      Zip::File.open(path, Zip::File::CREATE) do |zipfile|
        zipfile.get_output_stream("[Content_Types].xml") { |f| f.write(content_types_xml) }
        zipfile.get_output_stream("_rels/.rels") { |f| f.write(relationships_xml) }
        zipfile.get_output_stream("word/_rels/document.xml.rels") { |f| f.write(document_relationships_xml) }
        zipfile.get_output_stream("word/document.xml") { |f| f.write(document_xml) }
        zipfile.get_output_stream("word/styles.xml") { |f| f.write(styles_xml) }

        zipfile.get_output_stream("word/numbering.xml") { |f| f.write(numbering_xml) } if lists?

        images.each do |image|
          zipfile.get_output_stream("word/media/#{image.filename}") do |f|
            f.write(File.binread(image.path))
          end
        end
      end
    end

    private

    def lists?
      @document.lists.any?
    end

    def images
      @document.images
    end

    def content_types_xml
      Xml::ContentTypes.new(has_numbering: lists?, images: images, has_styles: true).to_xml
    end

    def relationships_xml
      Xml::Relationships.new.to_xml
    end

    def document_relationships_xml
      Xml::DocumentRelationships.new(has_numbering: lists?, images: images, has_styles: true).to_xml
    end

    def document_xml
      Xml::DocumentXml.new(@document.nodes).to_xml
    end

    def styles_xml
      Xml::StylesXml.new(@document.styles).to_xml
    end

    def numbering_xml
      Xml::Numbering.new(@document.lists).to_xml
    end
  end
end