/**
 * Logger - Implementation of ILogger for CLI output
 *
 * Provides:
 * - ConsoleLogger: Standard console output with ANSI colors
 * - SilentLogger: No output (for testing)
 *
 * Colors match the existing MCT CLI styling.
 */
import { ILogger } from "./ICommandContext";
/**
 * ConsoleLogger outputs to console with ANSI colors.
 */
export declare class ConsoleLogger implements ILogger {
    private verboseEnabled;
    private quietEnabled;
    private debugEnabled;
    private jsonMode;
    constructor(verbose?: boolean, quiet?: boolean, debug?: boolean, jsonMode?: boolean);
    info(message: string): void;
    warn(message: string): void;
    error(message: string): void;
    verbose(message: string): void;
    debug(message: string): void;
    success(message: string): void;
    data(message: string): void;
    progress(current: number, total: number, message?: string): void;
    private createProgressBar;
}
/**
 * SilentLogger produces no output.
 * Useful for testing or when output should be suppressed.
 */
export declare class SilentLogger implements ILogger {
    info(_message: string): void;
    warn(_message: string): void;
    error(_message: string): void;
    verbose(_message: string): void;
    debug(_message: string): void;
    success(_message: string): void;
    data(_message: string): void;
    progress(_current: number, _total: number, _message?: string): void;
}
/**
 * BufferedLogger stores all log messages for later retrieval.
 * Useful for testing or capturing output.
 */
export declare class BufferedLogger implements ILogger {
    readonly messages: Array<{
        level: string;
        message: string;
    }>;
    info(message: string): void;
    warn(message: string): void;
    error(message: string): void;
    verbose(message: string): void;
    debug(message: string): void;
    success(message: string): void;
    data(message: string): void;
    progress(current: number, total: number, message?: string): void;
    clear(): void;
    getErrors(): string[];
    getWarnings(): string[];
}
/**
 * Create a logger based on options.
 * @param verbose Enable verbose output
 * @param quiet Suppress non-essential output (errors and warnings still shown)
 * @param debug Enable debug output
 * @param silent Completely suppress all output (for testing)
 * @param jsonMode When true, route all non-data output to stderr so stdout contains only machine-readable JSON
 */
export declare function createLogger(verbose?: boolean, quiet?: boolean, debug?: boolean, silent?: boolean, jsonMode?: boolean): ILogger;