class GovukPublishingComponents::Presenters::GovernmentServiceSchema

def initialize(page)
  @page = page
end

def provider
  organisations = page.content_item.dig("links", "organisations")
  return {} unless organisations.present?
  providers = organisations.map do |organisation|
    {
      "@type" => "GovernmentOrganization",
      "name" => organisation["title"],
      "url" => organisation["web_url"],
    }
  end
  {
    "provider" => providers,
  }
end

def related_services
  related_links = page.content_item.dig("links", "ordered_related_items")
  return {} unless related_links.present?
  {
    "isRelatedTo" => related_links.each_with_object([]) do |link, items|
      next unless link["schema_name"] == "transaction"
      items << {
        "@type" => "GovernmentService",
        "name" => link["title"],
        "url" => link["web_url"],
      }
    end,
  }
end

def structured_data
  # http://schema.org/GovernmentService
  {
    "@context" => "http://schema.org",
    "@type" => "GovernmentService",
    "name" => page.title,
    "description" => page.description,
    "url" => page.canonical_url,
  }
    .merge(provider)
    .merge(related_services)
end