declare class NanoBuffer<T> {
    buffer: T[];
    _head: number;
    _maxSize: number;
    _size: number;
    constructor(maxSize?: number);
    get head(): number;
    get maxSize(): number;
    set maxSize(new_maxSize: number);
    get size(): number;
    push(value: T): this;
    clear(): this;
    [Symbol.iterator](): {
        next: () => {
            value: T | undefined;
            done: boolean;
        };
    };
}

interface CSPair { // eslint-disable-line @typescript-eslint/naming-convention
	/**
	The ANSI terminal control sequence for starting this style.
	*/
	readonly open: string;

	/**
	The ANSI terminal control sequence for ending this style.
	*/
	readonly close: string;
}

interface ColorBase {
	/**
	The ANSI terminal control sequence for ending this color.
	*/
	readonly close: string;

	ansi(code: number): string;

	ansi256(code: number): string;

	ansi16m(red: number, green: number, blue: number): string;
}

interface Modifier {
	/**
	Resets the current color chain.
	*/
	readonly reset: CSPair;

	/**
	Make text bold.
	*/
	readonly bold: CSPair;

	/**
	Emitting only a small amount of light.
	*/
	readonly dim: CSPair;

	/**
	Make text italic. (Not widely supported)
	*/
	readonly italic: CSPair;

	/**
	Make text underline. (Not widely supported)
	*/
	readonly underline: CSPair;

	/**
	Make text overline.

	Supported on VTE-based terminals, the GNOME terminal, mintty, and Git Bash.
	*/
	readonly overline: CSPair;

	/**
	Inverse background and foreground colors.
	*/
	readonly inverse: CSPair;

	/**
	Prints the text, but makes it invisible.
	*/
	readonly hidden: CSPair;

	/**
	Puts a horizontal line through the center of the text. (Not widely supported)
	*/
	readonly strikethrough: CSPair;
}

interface ForegroundColor {
	readonly black: CSPair;
	readonly red: CSPair;
	readonly green: CSPair;
	readonly yellow: CSPair;
	readonly blue: CSPair;
	readonly cyan: CSPair;
	readonly magenta: CSPair;
	readonly white: CSPair;

	/**
	Alias for `blackBright`.
	*/
	readonly gray: CSPair;

	/**
	Alias for `blackBright`.
	*/
	readonly grey: CSPair;

	readonly blackBright: CSPair;
	readonly redBright: CSPair;
	readonly greenBright: CSPair;
	readonly yellowBright: CSPair;
	readonly blueBright: CSPair;
	readonly cyanBright: CSPair;
	readonly magentaBright: CSPair;
	readonly whiteBright: CSPair;
}

interface BackgroundColor {
	readonly bgBlack: CSPair;
	readonly bgRed: CSPair;
	readonly bgGreen: CSPair;
	readonly bgYellow: CSPair;
	readonly bgBlue: CSPair;
	readonly bgCyan: CSPair;
	readonly bgMagenta: CSPair;
	readonly bgWhite: CSPair;

	/**
	Alias for `bgBlackBright`.
	*/
	readonly bgGray: CSPair;

	/**
	Alias for `bgBlackBright`.
	*/
	readonly bgGrey: CSPair;

	readonly bgBlackBright: CSPair;
	readonly bgRedBright: CSPair;
	readonly bgGreenBright: CSPair;
	readonly bgYellowBright: CSPair;
	readonly bgBlueBright: CSPair;
	readonly bgCyanBright: CSPair;
	readonly bgMagentaBright: CSPair;
	readonly bgWhiteBright: CSPair;
}

interface ConvertColor {
	/**
	Convert from the RGB color space to the ANSI 256 color space.

	@param red - (`0...255`)
	@param green - (`0...255`)
	@param blue - (`0...255`)
	*/
	rgbToAnsi256(red: number, green: number, blue: number): number;

	/**
	Convert from the RGB HEX color space to the RGB color space.

	@param hex - A hexadecimal string containing RGB data.
	*/
	hexToRgb(hex: string): [red: number, green: number, blue: number];

	/**
	Convert from the RGB HEX color space to the ANSI 256 color space.

	@param hex - A hexadecimal string containing RGB data.
	*/
	hexToAnsi256(hex: string): number;

	/**
	Convert from the ANSI 256 color space to the ANSI 16 color space.

	@param code - A number representing the ANSI 256 color.
	*/
	ansi256ToAnsi(code: number): number;

	/**
	Convert from the RGB color space to the ANSI 16 color space.

	@param red - (`0...255`)
	@param green - (`0...255`)
	@param blue - (`0...255`)
	*/
	rgbToAnsi(red: number, green: number, blue: number): number;

	/**
	Convert from the RGB HEX color space to the ANSI 16 color space.

	@param hex - A hexadecimal string containing RGB data.
	*/
	hexToAnsi(hex: string): number;
}

declare const ansiStyles: {
	readonly modifier: Modifier;
	readonly color: ColorBase & ForegroundColor;
	readonly bgColor: ColorBase & BackgroundColor;
	readonly codes: ReadonlyMap<number, number>;
} & ForegroundColor & BackgroundColor & Modifier & ConvertColor;

declare function nsToRgb(text: string): Color;

type WritableLike = {
    isTTY?: boolean;
    on: (...args: any[]) => any;
    removeListener: (...args: any[]) => any;
    writableObjectMode?: boolean;
    write: (...args: any[]) => any;
};
type LogFormatter = (msg: LogMessage, styles: StyleHelpers) => string;
type StyleHelpers = typeof ansiStyles & {
    nsToRgb: typeof nsToRgb;
};
type FormatLogElements = {
    error: (err: Error, styles: StyleHelpers) => string;
    message: (msg: string, method: string, styles: StyleHelpers) => string;
    method: (name: string, styles: StyleHelpers) => string;
    namespace: (ns: string, styles: StyleHelpers) => string;
    timestamp: (ts: Date, styles: StyleHelpers) => string;
    uptime: (uptime: number, styles: StyleHelpers) => string;
};
type LogElements = Partial<FormatLogElements>;
interface SnoopLoggConfig {
    colors?: boolean;
    elements?: LogElements;
    format?: LogFormatter | null;
    historySize?: number;
}
interface BaseLogMessage {
    args: unknown[];
    method: string;
    ns: string;
    ts: Date;
    uptime: number;
}
interface LogMessage extends BaseLogMessage {
    colors: boolean;
    elements: FormatLogElements;
}
interface StreamBase {
    colors?: boolean;
    elements?: LogElements;
    format?: LogFormatter;
}
interface StreamConfig extends StreamBase {
    onEnd?: () => void;
}
interface StreamOptions extends StreamBase {
    flush?: boolean;
}
interface RawLogMessage extends BaseLogMessage {
    id: number;
    uptime: number;
}
type Color = {
    r: number;
    g: number;
    b: number;
};

type LogMethod = (...args: unknown[]) => Logger;
declare const defaultElements: FormatLogElements;
declare const stripRegExp: RegExp;
declare class Functionator extends Function {
    constructor(fn: (namespace: string) => Logger);
}
declare class Logger extends Functionator {
    _log: LogMethod | undefined;
    _trace: LogMethod | undefined;
    _debug: LogMethod | undefined;
    _info: LogMethod | undefined;
    _warn: LogMethod | undefined;
    _error: LogMethod | undefined;
    _panic: LogMethod | undefined;
    ns: string;
    nsPath: string[];
    root: SnoopLogg;
    subnamespaces: Record<string, Logger>;
    constructor(root: SnoopLogg, parent?: Logger | null, namespace?: string);
    initChild(namespace: string): Logger;
    initMethod(method: string): (...args: unknown[]) => this;
    get log(): LogMethod;
    get trace(): LogMethod;
    get debug(): LogMethod;
    get info(): LogMethod;
    get warn(): LogMethod;
    get error(): LogMethod;
    get panic(): LogMethod;
}
declare class SnoopLogg extends Functionator {
    allow: string | RegExp | null;
    colors: boolean;
    elements: LogElements;
    format?: LogFormatter | null;
    history: NanoBuffer<RawLogMessage>;
    id: number;
    ignore: RegExp | null;
    onSnoopMessage: ((msg: RawLogMessage) => void) | null;
    logger: Logger;
    streams: Map<WritableLike, StreamConfig>;
    constructor(conf?: SnoopLoggConfig);
    config(conf?: SnoopLoggConfig): this;
    dispatch({ args, id, method, ns, ts, uptime }: {
        args: unknown[];
        id?: number;
        method: string;
        ns: string;
        ts: Date;
        uptime: number;
    }): void;
    enable(pattern?: string | RegExp): this;
    isEnabled(namespace: string): boolean;
    pipe(stream: WritableLike, opts?: StreamOptions): this;
    unpipe(stream: WritableLike): this;
    snoop(nsPrefix?: string): this;
    unsnoop(): this;
    writeToStreams(msg: RawLogMessage): void;
    get log(): LogMethod;
    get trace(): LogMethod;
    get debug(): LogMethod;
    get info(): LogMethod;
    get warn(): LogMethod;
    get error(): LogMethod;
    get panic(): LogMethod;
}
declare function defaultFormatter({ args, colors, elements, method, ns, uptime }: LogMessage, styles: StyleHelpers): string;

declare function isJSON(it: unknown): boolean;

declare const instance: SnoopLogg;
declare const log: LogMethod;
declare const trace: LogMethod;
declare const debug: LogMethod;
declare const info: LogMethod;
declare const warn: LogMethod;
declare const error: LogMethod;
declare const panic: LogMethod;

export { Logger, SnoopLogg, debug, instance as default, defaultElements, defaultFormatter, error, info, isJSON, log, nsToRgb, panic, stripRegExp, trace, warn };
export type { LogMethod };