mentorenwahl/backend/src/backend/api/errors.cr

module Backend::Api::Errors
  UNKNOWN_PRIVATE_ERROR = "UNKNOWN_ERROR"
  UNKNOWN_PUBLIC_ERROR  = "UNKNOWN_PUBLIC_ERROR"

  abstract class Error < Exception
    abstract def api_message : String
  end

  abstract class PrivateError < Error
  end

  abstract class PublicError < Error
  end

  class SessionExpired < PublicError
    def api_message : String
      "Session expired"
    end
  end

  class NotAuthenticated < PublicError
    def api_message : String
      "Not authenticated"
    end
  end

  class Authentication < PublicError
    def api_message : String
      "Invalid username or password"
    end
  end

  class InvalidPermissions < PublicError
    def api_message : String
      "Invalid permissions"
    end
  end

  class LdapUserDoesNotExist < PublicError
    def api_message : String
      "LDAP user does not exist"
    end
  end

  class DuplicateTeachers < PublicError
    def api_message : String
      "Duplicate teachers"
    end
  end

  class NotEnoughTeachers < PublicError
    def api_message : String
      "Not enough teachers"
    end
  end

  class TeachersNotRegistered < PublicError
    def api_message : String
      "Teachers not registered"
    end
  end

  class TeachersNotFound < PublicError
    def api_message : String
      "Teachers not found"
    end
  end
end