class Guff::Theme::Installer::Manifest
  JSON.mapping(
    format:     Int32,
    metadata:   Hash(String, String),
    files:      Array(FileInfo),
    assets:     Assets,
    templates:  Hash(String, String),
  )

  def self.load(zip_path : String) : Manifest
    json = ""
    Zip::Archive.open(zip_path) do |zip|
      json = String.new(zip.read("guff-manifest.json"))
    end

    # return result
    from_json(json)
  end
end