@startuml

namespace book {

class MDBook {
  project_root: PathBuf,
  template_dir: PathBuf,
  dest_base: PathBuf,
  render_intent: RenderIntent,

  translations: HashMap<String, Book>,

  indent_spaces: i32,
  livereload: bool,

  new(project_root)
}

class book::Book {
  config: BookConfig,
  toc: Vec<TocItem>,

  new(project_root)
}

class book::Chapter {
  title: String,
  path: PathBuf,
  dest_path: Option<PathBuf>,
  authors: Option<Vec<Author>>,
  translators: Option<Vec<Author>>,
  description: Option<String>,
  css_class: Option<String>,

  new(title, path)
}

}

namespace book::bookconfig {

class BookConfig {
  dest: PathBuf,
  src: PathBuf,

  title: String,
  subtitle: Option<String>,
  description: Option<String>,
  language: Language,
  authors: Vec<Author>,
  translators: Option<Vec<Author>>,
  publisher: Option<Publisher>,
  number_format: NumberFormat,
  section_names: Vec<String>,
  is_main_book: bool,
  is_multilang: bool,

  new(project_root)
}

class Author {
  name: String,
  file_as: String,
  email: Option<String>,

  new(name)
}

class Language {
  name: String,
  code: String,

  new(name, code)
}

class Publisher {
  name: String,
  url: Option<String>,
  logo_src: Option<PathBuf>,

  new(name)
}

enum NumberFormat {
  Arabic
  Roman
  Word
}

}

namespace book::toc {

class TocContent {
  chapter: Chapter,
  sub_items: Option<Vec<TocItem>>,
  section: Option<Vec<i32>>,
}

enum TocItem {
  Numbered "TocContent",
  Unnumbered "TocContent",
  Unlisted "TocContent",
  Spacer,
}

}

class Renderer {
   build(&self, project_root: &PathBuf),
   render(&self, book_project: &MDBook),
}

@enduml