// Copyright (c) HashiCorp, Inc.
// SPDX-License-Identifier: BUSL-1.1

package structs

import (
	"errors"
	"strings"
)

const (
	errNoLeader                   = "No cluster leader"
	errNoDCPath                   = "No path to datacenter"
	errDCNotAvailable             = "Remote DC has no server currently reachable"
	errNoServers                  = "No known Consul servers"
	errNotReadyForConsistentReads = "Not ready to serve consistent reads"
	errSegmentsNotSupported       = "Network segments are not supported in this version of Consul"
	errRPCRateExceeded            = "RPC rate limit exceeded"
	errServiceNotFound            = "Service not found: "
	errQueryNotFound              = "Query not found"
	errLeaderNotTracked           = "Raft leader not found in server lookup mapping"
)

var (
	ErrNoLeader                   = errors.New(errNoLeader)
	ErrNoDCPath                   = errors.New(errNoDCPath)
	ErrNoServers                  = errors.New(errNoServers)
	ErrNotReadyForConsistentReads = errors.New(errNotReadyForConsistentReads)
	ErrSegmentsNotSupported       = errors.New(errSegmentsNotSupported)
	ErrRPCRateExceeded            = errors.New(errRPCRateExceeded)
	ErrDCNotAvailable             = errors.New(errDCNotAvailable)
	ErrQueryNotFound              = errors.New(errQueryNotFound)
	ErrLeaderNotTracked           = errors.New(errLeaderNotTracked)
)

func IsErrNoDCPath(err error) bool {
	return err != nil && strings.Contains(err.Error(), errNoDCPath)
}

func IsErrQueryNotFound(err error) bool {
	return err != nil && strings.Contains(err.Error(), errQueryNotFound)
}

func IsErrNoLeader(err error) bool {
	return err != nil && strings.Contains(err.Error(), errNoLeader)
}

func IsErrRPCRateExceeded(err error) bool {
	return err != nil && strings.Contains(err.Error(), errRPCRateExceeded)
}

func IsErrServiceNotFound(err error) bool {
	return err != nil && strings.Contains(err.Error(), errServiceNotFound)
}