import { ConfigurationManager } from './ConfigurationManager.js';
import { FileOutput } from './FileOutput.js';
export declare class DebugLogger {
    private static instances;
    private debugInstance;
    private _namespace;
    private _configManager;
    private _fileOutput;
    private _enabled;
    private _level;
    private boundOnConfigChange;
    /**
     * Factory method to get or create a DebugLogger for a namespace.
     * Returns cached instance if one exists, ensuring singleton-per-namespace.
     */
    static getLogger(namespace: string): DebugLogger;
    /**
     * Dispose all cached logger instances.
     * Call this in test cleanup or application shutdown.
     */
    static disposeAll(): void;
    /**
     * Reset for testing - clears instances without unsubscribing
     * (use disposeAll in production)
     */
    static resetForTesting(): void;
    constructor(namespace: string);
    get namespace(): string;
    get enabled(): boolean;
    set enabled(value: boolean);
    get level(): string;
    set level(value: string);
    get configManager(): ConfigurationManager;
    get fileOutput(): FileOutput;
    log(messageOrFn: string | (() => string), ...args: unknown[]): void;
    debug(messageOrFn: string | (() => string), ...args: unknown[]): void;
    warn(messageOrFn: string | (() => string), ...args: unknown[]): void;
    private _logWithLevel;
    error(messageOrFn: string | (() => string), ...args: unknown[]): void;
    checkEnabled(): boolean;
    private matchesPattern;
    private redactSensitive;
    private onConfigChange;
    dispose(): Promise<void>;
}