import type { VerificationState } from './manifest.ts';
/** The marks, as a person sees them. */
export declare const MARKS: {
    readonly bundle: '🌳';
    readonly signature: '🔐';
    readonly attestation: '✍️';
};
export type Mark = keyof typeof MARKS;
export interface Style {
    /** Is anyone looking? False is a pipe, a file, or a test: plain text, exactly. */
    readonly people: boolean;
    /** `text` marked as being about a bundle, a signature or an attestation. */
    bundle(text: string): string;
    signature(text: string): string;
    attestation(text: string): string;
    mark(mark: Mark | undefined, text: string): string;
    bold(text: string): string;
    dim(text: string): string;
    green(text: string): string;
    yellow(text: string): string;
    red(text: string): string;
    cyan(text: string): string;
    /** A step, or a fact on the way: `* text` plainly, the mark or a `›` for people. */
    note(text: string, mark?: Mark | undefined): string;
    /** Something worth a second look: `! text`. */
    warn(text: string): string;
    /** The command failed: `error: text`. */
    error(text: string): string;
    /** A verification state, as `STATES` labels it, in the colour it deserves. */
    state(state: VerificationState, label: string): string;
    /**
     * A line some other module wrote for the log — `* fetching …`, `! …`,
     * `  identity: …` — with its leading marker made into the one people see.
     * The words are left alone: they are the other module's.
     */
    line(text: string): string;
}
/** The style of a pipe: plain text, byte for byte. */
export declare const PLAIN: Style;
/** What decides a stream's style: whether it is a terminal, and what that terminal can show. */
export interface Terminal {
    isTTY?: boolean | undefined;
    hasColors?: ((env?: NodeJS.ProcessEnv) => boolean) | undefined;
}
/**
 * The style for one stream. A terminal gets people's formatting; anything
 * else gets `PLAIN`. Colour follows the terminal's own answer, which is where
 * `NO_COLOR`, `FORCE_COLOR` and `TERM=dumb` are honoured. Emoji follow the
 * terminal too: a Windows console that predates Windows Terminal draws them as
 * boxes, so there the marks are left out unless something says it is newer.
 */
export declare function styleFor(stream: Terminal, env?: NodeJS.ProcessEnv, platform?: NodeJS.Platform): Style;
/** People's formatting — exported so tests, and anyone embedding the CLI, can ask for it. */
export declare function fancy({ color, emoji }?: {
    color?: boolean;
    emoji?: boolean;
}): Style;
/** A size as a person reads it: `4.2 MB`. */
export declare function bytes(size: number): string;
/** `count` things, with the noun agreeing: `1 member`, `3 members`. */
export declare function plural(count: number, noun: string, many?: string): string;
/**
 * Text someone else wrote, made safe to print on one line: control
 * characters (escape sequences that could rewrite the terminal, line breaks
 * that could pass for output of this tool's own) and the marks that reorder
 * text right to left are dropped, and runs of whitespace become one space.
 * An attestation's note is anyone's words, and is shown as such.
 */
export declare function untrusted(text: string): string;
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