import chalk from 'chalk';
import debug from 'debug';
import { CliTableOptions } from './table';
export * from './table';
export declare type LogType = 'error' | 'warn' | 'info' | 'success';
export declare type LogLevel = LogType | 'silent';
export interface Logger {
    /**
     * 初始化 logger, 多次调用会重复初始化同一个 logger
     */
    init(level: LogLevel, options: LoggerOptions): void;
    /**
     * 返回携带 特定 options 的 Logger 实例
     */
    withOptions(options: LogOptions): Logger;
    /**
     * 创建 loading 日志对象
     */
    createLoading(msg: any, options?: LogOptions): LoadingLogger;
    /**
     * info 日志输出
     */
    info(msg: any, options?: LogOptions): void;
    /**
     * success 日志输出
     */
    success(msg: any, options?: LogOptions): void;
    /**
     * warn 日志输出
     */
    warn(msg: any, options?: LogOptions): void;
    /**
     * warn 日志输出, 相同信息只输出一次
     */
    warnOnce(msg: any, options?: LogOptions): void;
    /**
     * error 日志输出
     */
    error(msg: any, options?: LogErrorOptions): void;
    /**
     * deprecate 日志输出
     */
    deprecate(deprecatedMsg: any, hint: any, error?: Error): void;
    /**
     * debug 日志输出, 基于 debug npm
     */
    debug(msg: any, ...args: any[]): void;
    /**
     * table 表格输出
     */
    table(tableOptions: CliTableOptions, type?: LogType, options?: LogErrorOptions): void;
    /**
     * 耗时性能日志输出, 需要配合 timeEnd 一起使用
     */
    time(label: string): void;
    /**
     * 耗时性能日志输出, 需要配合 time 一起使用
     */
    timeEnd(label: string): string;
    /**
     * 是否清空当前屏幕
     */
    clearScreen(type: LogType): void;
    /**
     * 当前错误是否已输出
     */
    hasErrorLogged(error: Error): boolean;
    hasWarned: boolean;
    hasErrored: boolean;
    options: LogOptions;
}
export declare type LoadingLogger = Pick<Logger, 'error' | 'success'> & {
    fail: Logger['error'];
    /**
     * 更新 loading 信息
     */
    update: (msg: string) => LoadingLogger;
    /**
     * 开始 loading
     */
    start: (msg?: string, options?: LogOptions) => LoadingLogger;
    /**
     * 停止 loadding
     */
    stop: () => LoadingLogger;
};
export interface LogOptions {
    clear?: boolean;
    timestamp?: boolean;
    color?: boolean;
    align?: boolean;
    symbol?: boolean | string;
    update?: boolean;
    depth?: null | number;
}
export interface LogErrorOptions extends LogOptions {
    error?: Error | null;
}
export interface LoggerOptions {
    /**
     * 日志前缀
     */
    prefix?: string;
    /**
     * debug 前缀
     */
    debugPrefix?: string;
    /**
     * 是否清空屏幕
     */
    allowClearScreen?: boolean;
    /**
     * 自定义 logger 对象
     */
    customLogger?: Logger;
}
export declare type TakinDebugScope = `${string}:${string}` | string;
export declare type Debug = debug.Debugger['log'];
/**
 * 用于过滤日志参数, 并替换为 ********
 */
export declare const FILTER_LOGGER_PARAMETERS: Set<string>;
export declare const LogLevels: Record<LogLevel, number>;
export declare const COLORS: {
    error: chalk.Chalk;
    warn: chalk.Chalk;
    success: chalk.Chalk;
    info: chalk.Chalk;
};
/**
 * 创建 debugger
 * @param namespace - 命名空间
 * @returns debugger
 */
export declare function createDebugger(namespace: TakinDebugScope): debug.Debugger;
/**
 * 开启特定命名空间的 debugger
 * @param namespaces - 需要开启 debug 的命名空间
 */
export declare function enableDebugger(namespaces: string): void;
/**
 * 创建日志
 * @param level - 日志级别
 * @param options - 日志创建选项
 * @returns logger 实例
 */
export declare function createLogger(level?: LogLevel, options?: LoggerOptions): Logger;
/**
 * 默认 logger
 */
export declare const logger: Logger;