class OmniauthCallbacksControllerTest < ActionDispatch::IntegrationTest
  include Devise::Test::IntegrationHelpers
  
  setup do
    @schemes = IdentifierScheme.all
    @user = User.first
    
    @callback_uris = {}
    
    # Stub out omniauth provider responses
    OmniAuth.config.test_mode = true
    
    @schemes.each do |scheme|
      @callback_uris[scheme.name] = Rails.application.routes.url_helpers.send(
                                                "user_#{scheme.name.downcase}_omniauth_callback_path")
      
      OmniAuth.config.mock_auth[:"#{scheme.name.downcase}"] = OmniAuth::AuthHash.new({
        :provider => "#{scheme.name.downcase}",
        :uid => 'foo:bar'
      })
    end

  end
  
  # -------------------------------------------------------------
  test "User is not signed in and valid OAuth2 response does not match a User record in DB: should redirect to registration page" do
    @schemes.each do |scheme|
      post @callback_uris[scheme.name]

      assert_equal I18n.t('identifier_schemes.new_login_success'), flash[:notice], "Expected a success message when simulating a valid callback from #{scheme.name}"
      assert_redirected_to "#{new_user_registration_url}?locale=#{I18n.locale}", "Expected a redirect to the registration page when the user is not logged in and we received a valid callback from #{scheme.name}"
      
      # make sure that the omniauth identifier is a hidden field on the registration page
      assert_not "#user_identifiers[#{scheme.name}]".nil? 
    end
  end

  # -------------------------------------------------------------
  test "User is not signed in and valid OAuth2 login matches a User record in the DB: should auto-signin and redirect to root page" do
    
    @schemes.each do |scheme|
      @user.user_identifiers << UserIdentifier.new(identifier_scheme: scheme, 
                                                   identifier: "foo:bar")
      @user.save!
      
      post @callback_uris[scheme.name]

      assert_equal I18n.t('devise.omniauth_callbacks.success').gsub('%{kind}', scheme.name), flash[:notice], "Expected a success message when simulating a valid callback from #{scheme.name}"
      assert_redirected_to "#{root_url}?locale=#{I18n.locale}", "Expected a redirect to the root page, #{projects_url}, when omniauth returns with a valid identifier!"
    end
  end

  # -------------------------------------------------------------
  test "User is signed in and valid OAuth2 login does not match the current user's record in the DB: should attach the identifier to the user and redirect to the edit profile page" do
    
    @schemes.each do |scheme|
      sign_in @user
      
      post @callback_uris[scheme.name]

      assert_equal I18n.t('identifier_schemes.connect_success').gsub('%{scheme}', scheme.name), flash[:notice], "Expected a success message when simulating a valid callback from #{scheme.name}"
      assert_redirected_to "#{edit_user_registration_path}?locale=#{I18n.locale}", "Expected a redirect to the edit profile page, #{projects_url}, when omniauth returns with a valid identifier for a user that is already signed in!"
      
      # reload the user record and make sure the omniauth value was attached to their record
      usr = User.find(@user)
      assert_equal usr.user_identifiers.find_by(identifier_scheme: scheme).identifier, 'foo:bar'
    end
  end

end