/**
 * Alloy HTTP Client
 *
 * Communicates with Grafana Alloy's HTTP API for pipeline management:
 *   - Health checks (/-/healthy, /-/ready)
 *   - Config reload (/-/reload)
 *   - Component introspection (/api/v0/component/{id})
 *
 * Follows the same pattern as grafana-client.ts: class with typed methods,
 * fetch-based HTTP calls, actionable error messages.
 *
 * Alloy's HTTP API runs on a configurable port (default: 12345).
 * Key behaviors:
 *   - /-/healthy returns 500 with unhealthy component names if any are unhealthy
 *   - /-/reload returns 400 with error message if config reload fails
 *   - A failed reload keeps the previous running config (safe by default)
 */
import type { AlloyClientOptions, AlloyComponentInfo, PipelineHealthResult } from "./types.js";
export declare class AlloyClient {
    private readonly url;
    private readonly timeout;
    constructor(opts: AlloyClientOptions);
    /** Base URL for display in error messages. */
    get baseUrl(): string;
    /**
     * Check if Alloy is healthy (all components running).
     * Returns { ok: true } if healthy, or { ok: false, unhealthyComponents } if not.
     * Returns { ok: false } with error if Alloy is unreachable.
     */
    healthy(): Promise<{
        ok: boolean;
        unhealthyComponents?: string[];
        error?: string;
    }>;
    /**
     * Check if Alloy is ready (initial config load complete).
     */
    ready(): Promise<boolean>;
    /**
     * Trigger config reload. Alloy re-reads all .alloy files from its config directory.
     *
     * On success: returns { ok: true }.
     * On failure: returns { ok: false, error } — Alloy keeps previous config running.
     */
    reload(): Promise<{
        ok: boolean;
        error?: string;
    }>;
    /**
     * List all running components.
     */
    listComponents(): Promise<AlloyComponentInfo[]>;
    /**
     * Get a specific component's status by ID.
     * Returns null if the component doesn't exist.
     */
    getComponent(id: string): Promise<AlloyComponentInfo | null>;
    /**
     * Check health of specific components by their IDs.
     * Fetches all components in a single request, then does local lookups.
     */
    checkPipelineHealth(componentIds: string[]): Promise<PipelineHealthResult>;
    private fetchWithTimeout;
    private formatError;
}