class Stripe::Card

def self.retrieve(_id, _opts = nil)
  raise NotImplementedError,
        "Card cannot be retrieved without a customer ID or an account " \
        "ID. Retrieve a card using `Customer.retrieve_source(" \
        "'customer_id', 'card_id')` or " \
        "`Account.retrieve_external_account('account_id', 'card_id')`"
end

def self.update(_id, _params = nil, _opts = nil)
  raise NotImplementedError,
        "Card cannot be updated without a customer ID or an account ID. " \
        "Update a card using `Customer.update_source('customer_id', " \
        "'card_id', update_params)` or `Account.update_external_account(" \
        "'account_id', 'card_id', update_params)`"
end

def resource_url
  if respond_to?(:recipient) && !recipient.nil? && !recipient.empty?
    "#{Recipient.resource_url}/#{CGI.escape(recipient)}/cards/#{CGI.escape(id)}"
  elsif respond_to?(:customer) && !customer.nil? && !customer.empty?
    "#{Customer.resource_url}/#{CGI.escape(customer)}/sources/#{CGI.escape(id)}"
  elsif respond_to?(:account) && !account.nil? && !account.empty?
    "#{Account.resource_url}/#{CGI.escape(account)}/external_accounts/#{CGI.escape(id)}"
  end
end