import type { Abstract, ExecutionContext, ModuleMetadata, Type } from "@nestjs/common";
import type { Attributes } from "@opentelemetry/api";
export interface OpenTelemetryModuleOptions {
    /**
     * OpenTelemetry Metrics Setup
     */
    metrics?: OpenTelemetryMetrics;
    /**
     * Wide Events Setup, used by the WideEventInterceptor
     */
    wideEvents?: OpenTelemetryWideEvents;
}
export interface OpenTelemetryOptionsFactory {
    createOpenTelemetryOptions(): Promise<OpenTelemetryModuleOptions> | OpenTelemetryModuleOptions;
}
/**
 * The options for the asynchronous OpenTelemetry module creation
 *
 * @publicApi
 */
export interface OpenTelemetryModuleAsyncOptions extends Pick<ModuleMetadata, "imports"> {
    /**
     * The name of the module
     */
    name?: string;
    /**
     * The class which should be used to provide the OpenTelemetry options
     */
    useClass?: Type<OpenTelemetryOptionsFactory>;
    /**
     * Import existing providers from other module
     */
    useExisting?: Type<OpenTelemetryOptionsFactory>;
    /**
     * The factory which should be used to provide the OpenTelemetry options
     */
    useFactory?: (...args: any[]) => Promise<OpenTelemetryModuleOptions> | OpenTelemetryModuleOptions;
    /**
     * The providers which should get injected
     */
    inject?: (string | symbol | Function | Type<any> | Abstract<any>)[];
}
export interface OpenTelemetryMetrics {
    hostMetrics?: boolean;
}
export interface OpenTelemetryWideEvents {
    /**
     * Called at the start of each request to seed baseline attributes
     * (e.g. user/tenant ids derived from the request).
     */
    seed?: (context: ExecutionContext) => Attributes;
}