# Copyright (C) 2012-2016 Zammad Foundation, http://zammad-foundation.org/
class GitLab
  class Credentials

    QUERY = <<-'GRAPHQL'.freeze
      query {
        currentUser {
          username
        }
      }
    GRAPHQL

    attr_reader :client

    def initialize(client)
      @client = client
    end

    def verify!
      response = client.perform(
        query: GitLab::Credentials::QUERY,
      )
      return if response.dig('data', 'currentUser', 'username').present?

      raise 'Invalid GitLab GraphQL API token'
    end
  end
end