module Jekyll::Algolia::Configurator

def self.assert_valid_credentials

error messages for each missing credential
Returns true if everything is ok, false otherwise. Will display helpful

Public: Check that all credentials are set 
def self.assert_valid_credentials
  checks = %w[application_id index_name api_key]
  checks.each do |check|
    if send(check.to_sym).nil?
      Logger.known_message("missing_#{check}")
      return false
    end
  end
  true
end