class LHC::Auth

def authenticate!(request, options)
  if options[:bearer]
    bearer_authentication!(request, options)
  elsif options[:basic]
    basic_authentication!(request, options)
  end
end

def basic_authentication!(request, options)
  auth = options[:basic]
  credentials = "#{auth[:username]}:#{auth[:password]}"
  set_authorization_header request, "Basic #{Base64.encode64(credentials).chomp}"
end

def bearer_authentication!(request, options)
  token = options[:bearer]
  token = token.call if token.is_a?(Proc)
  set_authorization_header request, "Bearer #{token}"
end

def before_request(request)
  options = request.options[:auth] || {}
  authenticate!(request, options)
end

def set_authorization_header(request, value)
  request.headers['Authorization'] = value
end