import type { ISecretProvider, SecretProviderConfig, SecretValue } from "../../../shared/interfaces/secret-provider.interface.js";
import type { EnvironmentSpec } from "../../../types.js";
export type SecretsBrokerOptions = {
    cwd?: string;
    customProviders?: ISecretProvider[];
};
/**
 * SecretsBroker service using Strategy pattern
 * Routes secret fetching to appropriate provider based on config
 * Eliminates hardcoded placeholder implementation
 */
export declare class SecretsBrokerService {
    private readonly spec;
    private readonly options;
    private readonly providers;
    private readonly logger;
    private readonly cache;
    constructor(spec: EnvironmentSpec, options?: SecretsBrokerOptions);
    /**
     * Initialize all available secret providers
     */
    private initializeProviders;
    /**
     * Fetch all secrets defined in spec
     */
    fetchAll(): Record<string, string>;
    /**
     * Fetch a single secret (async version)
     */
    fetchSecret(config: SecretProviderConfig): Promise<SecretValue>;
    /**
     * Get a provider by name, with support for variants
     */
    private getProvider;
    /**
     * Register a custom provider
     */
    registerProvider(provider: ISecretProvider): void;
    /**
     * Check health of all providers
     */
    healthCheckAll(): Promise<Record<string, boolean>>;
    /**
     * Clear secret cache
     */
    clearCache(): void;
}
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