import { Interceptor } from '@connectrpc/connect';
import { b as OtelClientInterceptorOptions } from './types-Db5ZtQHb.js';

/**
 * ConnectRPC OpenTelemetry client interceptor
 *
 * Creates a ConnectRPC interceptor that instruments outgoing RPC calls with
 * OpenTelemetry tracing and metrics following semantic conventions.
 *
 * Key differences from the server interceptor:
 * - Uses `propagation.inject()` to propagate trace context to outgoing requests
 * - Uses `SpanKind.CLIENT` instead of `SpanKind.SERVER`
 * - Uses `rpc.client.*` metrics instead of `rpc.server.*`
 * - `serverAddress` is REQUIRED (target server, not local hostname)
 * - No `trustRemote` option (client always creates spans in active context)
 *
 * @see https://opentelemetry.io/docs/specs/semconv/rpc/connect-rpc/
 * @see https://opentelemetry.io/docs/specs/semconv/rpc/rpc-metrics/
 * @module client-interceptor
 */

/**
 * Creates a ConnectRPC interceptor that instruments outgoing RPC calls with
 * OpenTelemetry tracing and/or metrics.
 *
 * The interceptor follows OpenTelemetry semantic conventions for RPC:
 * - Creates client spans with standard RPC attributes
 * - Injects trace context into outgoing request headers for propagation
 * - Records call duration, request size, and response size metrics
 * - Handles both unary and streaming calls
 *
 * @param options - Configuration options for the client interceptor
 * @returns A ConnectRPC Interceptor function
 *
 * @example
 * ```typescript
 * import { createOtelClientInterceptor } from '@connectum/otel';
 * import { createConnectTransport } from '@connectrpc/connect-node';
 *
 * const transport = createConnectTransport({
 *     baseUrl: 'http://localhost:5000',
 *     interceptors: [createOtelClientInterceptor({
 *         serverAddress: 'localhost',
 *         serverPort: 5000,
 *         filter: ({ service }) => !service.includes("Health"),
 *     })],
 * });
 * ```
 */
declare function createOtelClientInterceptor(options: OtelClientInterceptorOptions): Interceptor;

export { createOtelClientInterceptor };