module HelperMethods

  def login(user, password = "example")
    visit "/log_in"
    fill_in "email", with: user.email
    fill_in "password", with: password
    click_button "Log in"
  end


  # Driver switch
  def use_javascript
    Capybara.default_driver = :selenium
    Capybara.javascript_driver = :selenium
  end

  def use_default
    Capybara.default_driver = :rack_test
    Capybara.javascript_driver = :rack_test
  end


  # Authorization page URIs
  def authorization_grant_page(client, scope)
    uri = "/oauth/authorize?response_type=code" + authorization_params(client, scope)
    return URI.escape(uri)
  end

  def implicit_grant_page(client, scope)
    uri = "/oauth/authorize?response_type=token" + authorization_params(client, scope)
    return URI.escape(uri)
  end

  def authorization_params(client, scope)
    uri  = "&scope=#{scope}"
    uri += "&client_id=#{client.uri}"
    uri += "&redirect_uri=#{client.redirect_uri}"
  end


  # Redirect URIs
  def authorization_grant_uri(client)
    authorization = Oauth2Provider::OauthAuthorization.last
    client.redirect_uri + "?code=" + authorization.code
  end

  def implicit_grant_uri(client)
    token = Oauth2Provider::OauthToken.last
    token.token.should_not be_nil
    uri = client.redirect_uri + "#token=" + token.token + "&expires_in=" + Oauth2Provider.settings["token_expires_in"]
  end

  def authorization_denied_uri(client)
    client.redirect_uri + "?error=access_denied"
  end

  def implicit_denied_uri(client)
    client.redirect_uri + "#error=access_denied"
  end


  # Token generation (via POST requests)
  def create_token_uri(attributes)
    uri = Addressable::URI.new
    uri.query_values = attributes
    page.driver.post("/oauth/token", uri.query)
  end

  def response_should_have_access_token
    token = Oauth2Provider::OauthToken.last
    page.should have_content(token.token)
  end

  def response_should_have_refresh_token
    refresh_token = Oauth2Provider::OauthRefreshToken.last
    page.should have_content(refresh_token.refresh_token)
  end

end

RSpec.configuration.include HelperMethods, :type => :acceptance