cfg

type API struct {
	// TODO (grzkv): Why does carbonapi config refer to zipper config?
	// It should probably refer to the common one
	Zipper `yaml:",inline"`

	ResolveGlobs            int           `yaml:"resolveGlobs"`
	Cache                   CacheConfig   `yaml:"cache"`
	TimezoneString          string        `yaml:"tz"`
	PidFile                 string        `yaml:"pidFile"`
	BlockHeaderFile         string        `yaml:"blockHeaderFile"`
	BlockHeaderUpdatePeriod time.Duration `yaml:"blockHeaderUpdatePeriod"`
	HeadersToLog            []string      `yaml:"headersToLog"`

	UnicodeRangeTables        []string          `yaml:"unicodeRangeTables"`
	IgnoreClientTimeout       bool              `yaml:"ignoreClientTimeout"`
	DefaultColors             map[string]string `yaml:"defaultColors"`
	FunctionsConfigs          map[string]string `yaml:"functionsConfig"`
	GraphiteVersionForGrafana string            `yaml:"graphiteVersionForGrafana"`
}

type CacheConfig struct {
	// possible values are: null, mem, memcache, replicatedMemcache
	Type             string   `yaml:"type"`
	Size             int      `yaml:"size_mb"`
	MemcachedServers []string `yaml:"memcachedServers"`
	// TODO (grzkv): This looks to be used as expiration time for cache
	DefaultTimeoutSec int32  `yaml:"defaultTimeoutSec"`
	QueryTimeoutMs    uint64 `yaml:"queryTimeoutMs"`
	Prefix            string `yaml:"prefix"`
}

type Cluster struct {
	Name     string   `yaml:"name"`
	Backends []string `yaml:"backends"`
}

type Common struct {
	Listen            string    `yaml:"listen"`
	ListenInternal    string    `yaml:"listenInternal"`
	Backends          []string  `yaml:"backends"`
	BackendsByCluster []Cluster `yaml:"backendsByCluster"`
	BackendsByDC      []DC      `yaml:"backendsByDC"`

	MaxProcs                  int           `yaml:"maxProcs"`
	Timeouts                  Timeouts      `yaml:"timeouts"`
	ConcurrencyLimitPerServer int           `yaml:"concurrencyLimit"`
	KeepAliveInterval         time.Duration `yaml:"keepAliveInterval"`
	MaxIdleConnsPerHost       int           `yaml:"maxIdleConnsPerHost"`

	ExpireDelaySec             int32 `yaml:"expireDelaySec"`
	InternalRoutingCache       int32 `yaml:"internalRoutingCache"`
	GraphiteWeb09Compatibility bool  `yaml:"graphite09compat"`

	Buckets      int            `yaml:"buckets"`
	Graphite     GraphiteConfig `yaml:"graphite"`
	LoggerConfig zap.Config     `yaml:"loggerConfig"`

	Monitoring MonitoringConfig `yaml:"monitoring"`

	Traces               Traces `yaml:"traces"`
	PrintErrorStackTrace bool   `yaml:"printErrorStackTrace"`

	// RenderReplicaMismatchConfig configures the render mismatch related operations.
	RenderReplicaMismatchConfig RenderReplicaMismatchConfig `yaml:"renderReplicaMismatchConfig"`
}

type DC struct {
	Name     string    `yaml:"name"`
	Clusters []Cluster `yaml:"clusters"`
}

type GraphiteConfig struct {
	Pattern  string
	Host     string
	Interval time.Duration
	Prefix   string
}

type HistogramConfig struct {
	Start      float64 `yaml:"start"`
	BucketsNum int     `yaml:"bucketsNum"`
	BucketSize float64 `yaml:"bucketSize"`
}

type MonitoringConfig struct {
	RequestDurationExp      HistogramConfig `yaml:"requestDurationExpHistogram"`
	RequestDurationLin      HistogramConfig `yaml:"requestDurationLinHistogram"`
	RenderDurationExp       HistogramConfig `yaml:"renderDurationExpHistogram"`
	RenderDurationLinSimple HistogramConfig `yaml:"renderDurationLinHistogram"`
	FindDurationExp         HistogramConfig `yaml:"findDurationExpHistogram"`
	FindDurationLin         HistogramConfig `yaml:"findDurationLinHistogram"`
	FindDurationLinSimple   HistogramConfig `yaml:"findDurationSimpleLinHistogram"`
	FindDurationLinComplex  HistogramConfig `yaml:"findDurationComplexLinHistogram"`
	TimeInQueueExpHistogram HistogramConfig `yaml:"timeInQueueExpHistogram"`
	TimeInQueueLinHistogram HistogramConfig `yaml:"timeInQueueLinHistogram"`
}

type RenderReplicaMismatchConfig struct {
	// RenderReplicaMismatchApproximateCheck enables the approximate float equality
	// check while checking for mismatches.
	RenderReplicaMismatchApproximateCheck bool `yaml:"renderReplicaMismatchApproximateCheck"`

	// RenderReplicaMatchMode indicates how carbonzipper merges the metrics from replica backends.
	// Possible values are:
	//
	// * `normal` - ignore the mismatches and only heal null points (default)
	//
	// * `check` - look for mismatches, and expose metrics
	//
	// * `majority` - choose the values of majority of backends in addition to exposing metrics
	RenderReplicaMatchMode ReplicaMatchMode `yaml:"renderReplicaMatchMode"`

	// RenderReplicaMismatchReportLimit limits the number of mismatched metrics to be logged
	// for a single render request.
	RenderReplicaMismatchReportLimit int `yaml:"renderReplicaMismatchReportLimit"`
}

type ReplicaMatchMode string

type Tags map[string]string

type Timeouts struct {
	Global       time.Duration `yaml:"global"`
	AfterStarted time.Duration `yaml:"afterStarted"`
	Connect      time.Duration `yaml:"connect"`
}

type Traces struct {
	JaegerEndpoint       string        `yaml:"jaegerEndpoint"`
	Timeout              time.Duration `yaml:"timeout"`
	Tags                 Tags          `yaml:"tags"`
	JaegerBufferMaxCount int           `yaml:"jaegerBufferMaxCount"`
	JaegerBatchMaxCount  int           `yaml:"jaegerBatchMaxCount"`
}

type Zipper struct {
	Common    `yaml:",inline"`
	PathCache pathcache.PathCache
}