class CKEditor5::Rails::Assets::AssetsImportMap

def initialize(bundle)
  @bundle = bundle
end

def looks_like_url?(str)
  uri = URI.parse(str)
  uri.is_a?(URI::HTTP) || uri.is_a?(URI::HTTPS)
rescue URI::InvalidURIError
  false
end

def to_html(nonce: nil)
  tag.script(
    to_json.html_safe,
    type: 'importmap',
    nonce: nonce
  )
end

def to_json(*_args)
  import_map = bundle.scripts.each_with_object({}) do |script, map|
    next if !script.esm? || looks_like_url?(script.import_name)
    map[script.import_name] = script.url
  end
  { imports: import_map }.to_json
end