@startuml

class book::MDBook {
  project_root : PathBuf

  books : HashMap<&'a str, Book>

  renderer : Box<Renderer>
  livereload : Option<String>
  indent_spaces: i32
  multilingual: bool

  new(root)
}

class book::book.Book {
  config : BookConfig
  metadata : BookMetadata

  chapters: Vec<Chapter>

  new(title)
}

class book::bookconfig.BookConfig {
  lang : Language

  project_root : PathBuf
  book_dest : PathBuf
  book_src : PathBuf
  template_path : PathBuf

  new(root)
}

class book::chapter.Chapter {
title
file
author
description
css_class
index : Vec<i32>

new(title, file)
}

namespace book::toc {

class TocItem {
  content : TocContent
  sub_items: Vec<TocItem>
  new(content)
}

enum TocContent {
  Frontmatter "Chapter"
  Mainmatter "Chapter"
  Backmatter "Chapter"
  Insert "Chapter"
  Spacer
}

}

namespace book::metadata {

class BookMetadata {
  title
  subtitle
  description
  publisher
  language
  authors
  translators
  number_format
  section_names
  new(title)
}

class Author {
  name
  email
  new(name)
}

class Language {
  name
  code
}

class Publisher {
  name
  url
  logo_src
}

enum NumberFormat {
  Arabic
  Roman
  Word
}

}

class renderer::html_handlebars::HtmlHandlebars {
  new()
  render(book: MDBook)
}

class theme::Theme {
  index
  css
  favicon
  js
  highlight_css
  tomorrow_night_css
  highlight_js
  jquery
  new(src)
}

book::book-[hidden]->book::bookconfig
book::book-[hidden]->book::chapter
book::book-[hidden]->book::toc
book::book-[hidden]->book::metadata

renderer::html_handlebars::HtmlHandlebars-[hidden]->theme::Theme

@enduml