// Licensed to the Apache Software Foundation (ASF) under one
// or more contributor license agreements.  See the NOTICE file
// distributed with this work for additional information
// regarding copyright ownership.  The ASF licenses this file
// to you under the Apache License, Version 2.0 (the
// "License"); you may not use this file except in compliance
// with the License.  You may obtain a copy of the License at
//
//   http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing,
// software distributed under the License is distributed on an
// "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
// KIND, either express or implied.  See the License for the
// specific language governing permissions and limitations
// under the License.

package iggcon

const MaxLeaderRedirects uint8 = 3

// LeaderRedirectionState tracks redirection attempts to avoid loops.
type LeaderRedirectionState struct {
	RedirectCount     uint8
	LastLeaderAddress string
}

func NewLeaderRedirectionState() *LeaderRedirectionState {
	return &LeaderRedirectionState{RedirectCount: 0}
}

func (s *LeaderRedirectionState) CanRedirect() bool {
	return s.RedirectCount < MaxLeaderRedirects
}

func (s *LeaderRedirectionState) IncrementRedirect(leaderAddress string) {
	s.RedirectCount++
	s.LastLeaderAddress = leaderAddress
}

func (s *LeaderRedirectionState) Reset() {
	s.RedirectCount = 0
	s.LastLeaderAddress = ""
}
