otel

type ExporterSettings struct {
	// Protocol selects the OTLP transport: grpc (default) or http.
	Protocol string `cfg:"protocol" default:"grpc"`
	// Host is the collector host; override via env from pod metadata (status.hostIP).
	Host string `cfg:"host" default:"localhost"`
	// Port is the collector port (4317 for gRPC, 4318 for HTTP by convention).
	Port int `cfg:"port" default:"4317"`
	// Endpoint, when set, takes precedence over Host:Port.
	Endpoint string `cfg:"endpoint" default:""`
	// UrlPath overrides the HTTP signal path for all signals; empty uses the SDK defaults.
	// Per-signal paths (TracesUrlPath, MetricsUrlPath, LogsUrlPath) take precedence when set.
	UrlPath string `cfg:"url_path" default:""`
	// TracesUrlPath overrides the HTTP path for traces; falls back to UrlPath, then SDK default (/v1/traces).
	TracesUrlPath string `cfg:"traces_url_path" default:""`
	// MetricsUrlPath overrides the HTTP path for metrics; falls back to UrlPath, then SDK default (/v1/metrics).
	MetricsUrlPath string `cfg:"metrics_url_path" default:""`
	// LogsUrlPath overrides the HTTP path for logs; falls back to UrlPath, then SDK default (/v1/logs).
	LogsUrlPath string `cfg:"logs_url_path" default:""`
	// Insecure disables transport security; set false to enable TLS/mTLS.
	Insecure bool `cfg:"insecure" default:"true"`
	// Compression enables payload compression ("gzip" or "" / "none").
	Compression string `cfg:"compression" default:"gzip"`
	// Timeout bounds a single export attempt.
	Timeout time.Duration `cfg:"timeout" default:"10s"`
	// Headers are static headers attached to every export (auth, tenant, ...).
	Headers map[string]string `cfg:"headers"`
	// TLS configures transport security when Insecure is false.
	TLS TLSSettings `cfg:"tls"`
	// Retry configures the exporter's built-in retry behavior.
	Retry RetrySettings `cfg:"retry"`
}

type ResourceSettings struct {
	// ServiceNamePattern is expanded via cfg.Identity.Format (placeholders: {app.name}, {app.env}, {app.namespace}, {app.tags.x}).
	ServiceNamePattern string `cfg:"service_name_pattern,nodecode" default:"{app.name}"`
	// ServiceNamespacePattern maps to the service.namespace resource attribute. An empty pattern disables the attribute.
	ServiceNamespacePattern string `cfg:"service_namespace_pattern,nodecode" default:"{app.namespace}"`
	// Delimiter is used when joining namespace parts during pattern expansion.
	Delimiter string `cfg:"delimiter" default:"-"`
	// Attributes are additional resource attributes; values may contain identity placeholders.
	Attributes map[string]string `cfg:"attributes"`
}

type RetrySettings struct {
	Enabled         bool          `cfg:"enabled" default:"true"`
	InitialInterval time.Duration `cfg:"initial_interval" default:"5s"`
	MaxInterval     time.Duration `cfg:"max_interval" default:"30s"`
	MaxElapsedTime  time.Duration `cfg:"max_elapsed_time" default:"300s"`
}

type Settings struct {
	Resource ResourceSettings `cfg:"resource"`
	Exporter ExporterSettings `cfg:"exporter"`
}

type TLSSettings struct {
	CaFile             string `cfg:"ca_file" default:""`
	CertFile           string `cfg:"cert_file" default:""`
	KeyFile            string `cfg:"key_file" default:""`
	ServerName         string `cfg:"server_name" default:""`
	InsecureSkipVerify bool   `cfg:"insecure_skip_verify" default:"false"`
	// MinVersion is the minimum TLS version to accept (e.g. "1.2", "1.3"). Defaults to TLS 1.3.
	MinVersion string `cfg:"min_version" default:"1.3"`
}