consts

const (
	// DaprInternalSpanAttrPrefix is the internal span attribution prefix.
	// Middleware will not populate it if the span key starts with this prefix.
	DaprInternalSpanAttrPrefix = "__dapr."
	// DaprAPISpanNameInternal is the internal attribution, but not populated to span attribution.
	DaprAPISpanNameInternal = DaprInternalSpanAttrPrefix + "spanname"

	// Span attribute keys
	// Reference trace semantics https://opentelemetry.io/docs/specs/semconv/general/trace
	DBSystemSpanAttributeKey             = string(semconv.DBSystemKey)
	DBNameSpanAttributeKey               = string(semconv.DBNameKey)
	DBStatementSpanAttributeKey          = string(semconv.DBStatementKey)
	DBConnectionStringSpanAttributeKey   = string(semconv.DBConnectionStringKey)
	MessagingSystemSpanAttributeKey      = string(semconv.MessagingSystemKey)
	MessagingDestinationSpanAttributeKey = string(semconv.MessagingDestinationNameKey)
	GrpcServiceSpanAttributeKey          = string(semconv.RPCServiceKey)
	NetPeerNameSpanAttributeKey          = string(semconv.NetPeerNameKey)
	RPCSystemSpanAttributeKey            = string(semconv.RPCSystemKey)

	DaprAPISpanAttributeKey           = "dapr.api"
	DaprAPIStatusCodeSpanAttributeKey = "dapr.status_code"
	DaprAPIProtocolSpanAttributeKey   = "dapr.protocol"
	DaprAPIInvokeMethod               = "dapr.invoke_method"
	DaprAPIActorTypeID                = "dapr.actor"

	OtelSpanConvHTTPRequestMethodAttributeKey = "http.request.method"
	OtelSpanConvServerAddressAttributeKey     = "server.address"
	OtelSpanConvServerPortAttributeKey        = "server.port"
	OtelSpanConvURLFullAttributeKey           = "url.full"

	DaprAPIHTTPSpanAttrValue = "http"
	DaprAPIGRPCSpanAttrValue = "grpc"

	StateBuildingBlockType   = "state"
	SecretBuildingBlockType  = "secrets"
	BindingBuildingBlockType = "bindings"
	PubsubBuildingBlockType  = "pubsub"

	DaprGRPCServiceInvocationService = "ServiceInvocation"
	DaprGRPCDaprService              = "Dapr"

	// Keys used in the context's metadata for streaming calls
	// Note: these keys must always be all-lowercase
	DaprCallLocalStreamMethodKey = "__dapr_calllocalstream_method"

	// We have leveraged the code from opencensus-go plugin to adhere the w3c trace context.
	// Reference : https://github.com/census-instrumentation/opencensus-go/blob/master/plugin/ochttp/propagation/tracecontext/propagation.go
	// Trace context headers
	TraceparentHeader = "traceparent"
	TracestateHeader  = "tracestate"
	BaggageHeader     = "baggage"

	GRPCTraceContextKey  = "grpc-trace-bin"
	GRPCProxyAppIDKey    = "dapr-app-id"
	GRPCProxyCalleeIDKey = "dapr-callee-app-id"
	// Trace sampling constants
	SupportedVersion = 0
	MaxVersion       = 254
	MaxTracestateLen = 512
)