constant

const (
	AuditDowntimeEnd          = "downtime-end"
	AuditDowntimeExpire       = "downtime-expire"
	AuditReviewUnSeenInstance = "review-unseen-instance"
	AuditUpdateClusterName    = "update-cluster-name"
	AuditInjectUnSeenMaster   = "inject-unseen-master"
	AuditInjectSeed           = "inject-seed"
	AuditForget               = "forget"
	AuditRegisterCandidate    = "register-candidate"

	AuditReplicaStart   = "start-replica"
	AuditReplicaRestart = "restart-replica"
	AuditReplicaStop    = "stop-replica"

	AuditRecoverDeadMasterWithoutReplica = "recover-dead-master-without-replicas"
)

const (

	// cache config
	CacheAtomPrefix    = "atom-" // atom key prefix
	CacheNotExpire     = -1      //
	CacheExpireByCache = 0       // use default expiration of cache self

	CacheExpireDefault     = 1800 // second
	CacheExpireAtomKey     = 2    // second
	CacheExpireRandomDelta = 1800 // second

	CacheNamePrefix = "cache-"

	// name and expire and clean up for different key
	CacheAgentName            = "agent"
	CacheAgentExpire          = 3600 // second
	CacheAgentCleanupInterval = 1800 // second

	CacheGrpcName            = "grpc"
	CacheGrpcExpire          = 86400 // second
	CacheGrpcCleanupInterval = 1800  // second

	CacheHostnameName            = "hostname"
	CacheHostnameCleanupInterval = 60 // second

	CacheIPName            = "ip"
	CacheIPExpire          = 600 // second
	CacheIPCleanupInterval = 60  // second

	CacheLogName            = "log"
	CacheLogExpire          = 60 // second
	CacheLogCleanupInterval = 5  // second

	CacheInstanceForgetName            = "inst-forget"
	CacheInstanceForgetCleanupInterval = 1 //second

	CacheInstanceAnalysisName            = "inst-analysis"
	CacheInstanceAnalysisCleanupInterval = 1 //second

	CacheClusterName            = "cluster"
	CacheClusterCleanupInterval = 1 //second

	CacheKVFoundName            = "kv-found"
	CacheKVFoundExpire          = 600
	CacheKVFoundCleanupInterval = 60

	CacheOperationKeyName            = "operation-key"
	CacheOperationKeyExpire          = 600
	CacheOperationKeyCleanupInterval = 1
)

const (
	// app config
	WhoAmI = "ham4db"

	// default config
	DefaultBackendDB         = BackendDBTestDB // used test db as default backend db
	DefaultEnabledAdaptor    = TestDB          // used test db as default enabled adaptor
	DefaultVersion           = "10.10.10"      // default ham4db version for test db
	DefaultStatusAPIEndpoint = "/api/status"

	// backend database type
	BackendDBMysql     = "mysql"
	BackendDBOpengauss = "opengauss"
	BackendDBSqlite    = "sqlite3"
	BackendDBTestDB    = TestDB

	// test backend database
	TestDB                    = "testdb"        // backend database name
	TestDBDir                 = "/tmp/ham4db"   // tmp database data file directory
	TestDBOptionSimulateError = "simulateError" // setting used to decide to simulate error or not

	// retry
	RetryInterval = 500 * time.Millisecond // retry interval
	RetryFunction = 5                      // max retry times when function exec failed

	// concurrency
	ConcurrencyBackendDBWrite    = 20  // max concurrency for back end db write
	ConcurrencyBackendDBRead     = 20  // max concurrency for back end db read
	ConcurrencyTopologyOperation = 128 // Max concurrency for bulk topology operations

	// grpc
	GrpcTimeout = 20 //second

	// date format
	DateFormat         = "2006-01-02 15:04:05"  // format date data when get from database
	DateFormatTimeZone = "2006-01-02T15:04:05Z" // format date data when get from database
	DateFormatLog      = "2006-01-02 15:04:05"

	// os
	OSTempPath       = "/tmp/ham4db"
	OSTempFilePatten = "ham4db-temp-" // temp file patten: prefix as the part before "*" and suffix as the part after "*"

	// query
	DefaultQuery = `` /* 1314-byte string literal not displayed */

	DefaultQueryFuzzy       = `select db_type, hostname, port, cluster_id from ham_database_instance`
	DefaultQueryClusterName = `select cluster_name from ham_database_instance`

	// downtime
	DowntimeReasonLostInRecovery     = "lost-in-recovery"
	DowntimeSecond               int = 60 * 60 * 24 * 365

	// token
	TokenShortLength = 8 // used to get short token

	// random string
	RandomChars = "0123456789abcdefghijklmnopqurstuvwxyzABCDEFGHIJKLMNOPQURSTUVWXYZ"
)

const (
	NoStopReplication     StopReplicationMethod = "NoStopReplication"
	StopReplicationNormal                       = "StopReplicationNormal"
	StopReplicationNice                         = "StopReplicationNice"
)

const (
	// response message
	HttpRespMsgUnAuth        = "unauthorized"
	HttpRespMsgMissClusterId = "miss cluster id"
	HttpRespMsgMissRole      = "miss role"
)

const (
	// collection
	CollectionDefaultExpire = 1               // second
	CollectionWriteBuffer   = "write.buffer"  //
	CollectionBackendWrite  = "backend.write" // name for backend write

	// metric
	MetricAuditOpt                   = "audit.write" //
	MetricInstanceRead               = "instance.read"
	MetricInstanceWrite              = "instance.write"
	MetricAnalysisChangeWriteAttempt = "analysis.change.write.attempt"
	MetricAnalysisChangeWrite        = "analysis.change.write"

	MetricDiscoverAttempt                  = "discoveries.attempt"
	MetricDiscoverFail                     = "discoveries.fail"
	MetricDiscoverInstancePollSecondExceed = "discoveries.instance_poll_seconds_exceeded"
	MetricDiscoverQueueLength              = "discoveries.queue_length"
	MetricDiscoverRecentCount              = "discoveries.recent_count"
	MetricElectIsElected                   = "elect.is_elected"
	MetricHealthIsHealthy                  = "health.is_healthy"
	MetricRaftIsHealthy                    = "raft.is_healthy"
	MetricRaftIsLeader                     = "raft.is_leader"

	// for aggregated discovery metric
	FailedDiscoveries     CounterKey = "FailedDiscoveries"
	Discoveries                      = "Discoveries"
	InstanceKeys          HostKey    = "InstanceKeys"
	OkInstanceKeys                   = "OkInstanceKeys"
	FailedInstanceKeys               = "FailedInstanceKeys"
	TotalSeconds          TimerKey   = "TotalSeconds"
	BackendSeconds                   = "BackendSeconds"
	InstanceSeconds                  = "InstanceSeconds"
	FailedTotalSeconds               = "FailedTotalSeconds"
	FailedBackendSeconds             = "FailedBackendSeconds"
	FailedInstanceSeconds            = "FailedInstanceSeconds"

	// monitor type
	MonitorGraphite = "Graphite"
)

const (
	RaftCommandDiscover = "discover"
	RaftCommandForget   = "forget"

	SnapshotTypeRDMS = "rdms"
)

const (
	IP           = `` /* 659-byte string literal not displayed */
	URLSchema    = `((https?):\/\/)`
	URLPath      = `((\/|\?|#)[^\s]*)`
	URLPort      = `(:(\d{1,5}))`
	URLIP        = `([1-9]\d?|1\d\d|2[01]\d|22[0-3]|24\d|25[0-5])(\.(\d{1,2}|1\d\d|2[0-4]\d|25[0-5])){2}(?:\.([0-9]\d?|1\d\d|2[0-4]\d|25[0-5]))`
	URLSubdomain = `((www\.)|([a-zA-Z0-9]+([-_\.]?[a-zA-Z0-9])*[a-zA-Z0-9]\.[a-zA-Z0-9]+))`
	URL          = `^` + URLSchema + `?` + `((` + URLIP + `|(\[` + IP + `\])|(([a-zA-Z0-9]([a-zA-Z0-9-_]+)?[a-zA-Z0-9]([-\.][a-zA-Z0-9]+)*)|(` + URLSubdomain + `?))?(([a-zA-Z\x{00a1}-\x{ffff}0-9]+-?-?)*[a-zA-Z\x{00a1}-\x{ffff}0-9]+)(?:\.([a-zA-Z\x{00a1}-\x{ffff}]{1,}))?))\.?` + URLPort + `?` + URLPath + `?$`
)