/**
 * Configuration manager implementation
 */
import { BaseWundrError } from '@wundr.io/core';
import type { ConfigSource, ConfigManager, ConfigOptions, ValidationResult } from '../types/index.js';
export declare class ConfigError extends BaseWundrError {
    constructor(message: string, context?: Record<string, unknown>);
}
export declare class WundrConfigManager implements ConfigManager {
    private readonly logger;
    private readonly eventBus;
    private readonly sources;
    private readonly validationRules;
    private readonly options;
    private config;
    private watchers;
    private globalWatchers;
    private sourceWatchers;
    private readonly debouncedSave;
    private readonly debouncedReload;
    private initialized;
    constructor(options?: ConfigOptions);
    initialize(): Promise<void>;
    get<T = unknown>(key: string, defaultValue?: T): T;
    set(key: string, value: unknown): void;
    has(key: string): boolean;
    delete(key: string): void;
    clear(): void;
    getAll(): Record<string, unknown>;
    reload(): Promise<void>;
    save(): Promise<void>;
    watch(key: string, callback: (value: unknown, oldValue: unknown) => void): () => void;
    watchAll(callback: (config: Record<string, unknown>) => void): () => void;
    addSource(source: ConfigSource): void;
    removeSource(sourceName: string): void;
    getSources(): ConfigSource[];
    validate(): ValidationResult;
    private doReload;
    private doSave;
    private setupSourceWatchers;
    private setupSourceWatcher;
    private notifyWatchers;
    private notifyGlobalWatchers;
    private notifyAllWatchersOfChanges;
    private getAllNestedKeys;
}
//# sourceMappingURL=index.d.ts.map