require "html"
require "ecr/macros"
require "../../api/methods"
require "./page"

class Guff::APIDocsHTMLView
  TITLE = "Guff API Documentation"

  def self.run(context : HTTP::Server::Context)
    page = PageHTMLView.new(TITLE, new.to_s)
    context.response.content_type = page.content_type
    context.response.puts page
  end

  private def namespaces
    API::Methods::METHODS.keys.sort
  end

  private def methods(
    namespace : String
  )
    API::Methods::METHODS[namespace].keys.sort
  end

  private def method_text(
    namespace : String,
    method    : String
  )
    API::Methods::METHODS[namespace][method][:text] as String
  end

  private def method_args(
    namespace : String,
    method    : String
  )
    if method_has_args?(namespace, method)
      args = API::Methods::METHODS[namespace][method][:args] as \
        Hash(String, Hash(Symbol, String|Symbol|Bool)) | Nil
      args.keys.sort
    else
      [] of String
    end
  end

  private def arg_text(
    namespace : String,
    method    : String,
    name      : String
  ) : String
    if method_has_args?(namespace, method)
      arg = API::Methods::METHODS[namespace][method][:args][name] as\
        Hash(Symbol, String|Symbol|Bool)
      arg[:text] as String
    else
      ""
    end
  end

  private def method_has_args?(
    namespace : String,
    method    : String
  )
    API::Methods::METHODS[namespace][method].has_key?(:args)
  end

  def h(s : String)
    HTML.escape(s || "")
  end

  ECR.def_to_s("./src/guff/views/ecrs/api-docs.ecr")
end