config

const (
	DefaultAdminPort          = 9091
	DefaultAdminListenIP      = "0.0.0.0"
	DefaultPrometheusEndpoint = "http://127.0.0.1:9090/"
	DefaultWALDirectory       = "data/wal"

	DefaultExportTimeout             = time.Second * 60
	DefaultHealthCheckTimeout        = time.Second * 5
	DefaultHealthCheckPeriod         = time.Second * 60
	DefaultHealthCheckThresholdRatio = 0.5
	DefaultReadinessPeriod           = time.Second * 5
	DefaultScrapeIntervalWaitPeriod  = time.Minute
	DefaultMaxPointAge               = time.Hour * 25
	DefaultShutdownDelay             = time.Minute
	DefaultStartupTimeout            = time.Minute * 10
	DefaultNoisyLogPeriod            = time.Second * 60
	DefaultPrometheusTimeout         = time.Second * 60

	DefaultSingleMetricBatchSizeLimit = 4096

	DefaultSupervisorBufferSize  = 16384
	DefaultSupervisorLogsHistory = 16

	// How many bytes per request
	DefaultMaxBytesPerRequest = 65536

	// How many items can be queued before the reader blocks
	//
	// Note: queue entries are 16 bytes, this is a large block of memory.
	// TODO: Consider adjusting this down after understanding performance
	// of the single-queue approach to sharding taken in #247.
	DefaultQueueSize = 100000

	// Min number of shards, i.e. amount of concurrency
	DefaultMinShards = 1
	// Max number of shards, i.e. amount of concurrency
	DefaultMaxShards = 200

	// TODO: This was 1 minute; it's not clear how often it should
	// happen bit it's a suspiciously short timeout given that it
	// can race with startup.  Should we wait until the WAL reader
	// reaches a current position before we begin garbage
	// collection?
	DefaultSeriesCacheGarbageCollectionPeriod = time.Minute * 15

	// DefaultSeriesCacheLookupPeriod determines how often the
	// sidecar will try to load metadata for the series when it is
	// not known.
	DefaultSeriesCacheLookupPeriod = time.Minute * 3

	// DefaultMaxExportAttempts sets a maximum on the number of
	// attempts to export a request.  This is not RPC requests,
	// but attempts, defined as trying for up to at least the
	// export timeout.  This helps in case a request fails
	// repeatedly, in which case the queue could block the WAL
	// reader.
	DefaultMaxExportAttempts = 2

	DefaultMaxRetrySkipSegments = 5

	// DefaultCheckpointInProgressPeriod is the maximum amount of time
	// to wait if it appears a checkpoint is in progress.
	DefaultCheckpointInProgressPeriod = time.Minute * 5

	AgentKey = "telemetry-reporting-agent"

	SidecarPrefix = "sidecar."

	SeriesDefinedMetric = "sidecar.series.defined"
	DroppedSeriesMetric = "sidecar.series.dropped"
	CurrentSeriesMetric = "sidecar.series.current"

	OutcomeMetric = "sidecar.queue.outcome"

	ProducedPointsMetric = "sidecar.points.produced"
	DroppedPointsMetric  = "sidecar.points.dropped"
	SkippedPointsMetric  = "sidecar.points.skipped"

	FailingMetricsMetric = "sidecar.metrics.failing"
	CurrentMetricsMetric = "sidecar.metrics.current"

	LeadershipMetric = "sidecar.leadership"

	OutcomeKey          = attribute.Key("outcome")
	OutcomeSuccessValue = "success"

	HealthCheckURI = "/-/health"

	// PrometheusCurrentSegmentMetricName names an internal gauge
	// exposed by Prometheus (having no attributes).
	PrometheusCurrentSegmentMetricName = "prometheus_tsdb_wal_segment_current"

	// PrometheusTargetIntervalLengthName is an internal histogram
	// indicating how long the interval between scrapes.
	PrometheusTargetIntervalLengthName = "prometheus_target_interval_length_seconds"

	// PrometheusBuildInfoName provides prometheus version information
	PrometheusBuildInfoName = "prometheus_build_info"
	// PrometheusMinVersion is the minimum supported version
	PrometheusMinVersion = "2.10.0"

	// LeaderLockDefaultNamespace is the name of the default k8s namespace.
	// Note: can't be empty.
	LeaderLockDefaultNamespace = "default"

	// LeaderLockDefaultName will be used when no `prometheus`
	// external label is found.
	LeaderLockDefaultName = "otel-prom-sidecar"
)

const (
	GAUGE      Kind = 1
	CUMULATIVE Kind = 2
	DELTA      Kind = 3

	DOUBLE       ValueType = 1
	INT64        ValueType = 2
	DISTRIBUTION ValueType = 3
	HISTOGRAM    ValueType = 4
)

const (
	PrometheusTargetMetadataEndpointPath = "api/v1/targets/metadata"
	PrometheusMetadataEndpointPath       = "api/v1/metadata"
	PrometheusConfigEndpointPath         = "api/v1/status/config"
)

const MetricTypeUntyped = "untyped"