/**
 * Harness credits, as the platform grants them and as every surface says them.
 *
 * One file because the HUD's row and the daemon's refusal must say the same sentence: when the two
 * were written apart, the HUD offered "a free monthly allowance" the platform no longer grants.
 * The numbers are always the platform's (`limit`); only the trial length is not on the wire.
 *
 * Served from `@reticlehq/core/hud` only: from the root entry it rode into every page's first load.
 */
import { CreditKind } from './impact.js';
/** The trial a card starts. Not on the wire; the platform's own sentence names it the same. */
export declare const TRIAL_DAYS = 14;
/** What a new account is granted, and what a card's trial grants. The platform's numbers, said. */
export declare const FREE_CREDITS = 10;
export declare const TRIAL_CREDITS = 500;
/** What a signed-out HUD says the Harness costs to try. */
export declare const SIGN_UP_PITCH: string;
/** The platform's offer, worded once: what a card starts, and what an account gets without one. */
export declare const TRIAL_OFFER: string;
export interface Credits {
    used: number;
    limit: number;
    kind?: CreditKind | undefined;
    /** Whole days the grant has left, when the platform gave an end date. Absent: not said. */
    daysLeft?: number | undefined;
}
/** Nothing left. An unbounded plan (no credits reported) never is. */
export declare function creditsSpent(credits: Credits | undefined): boolean;
/** "8 of 10 free credits", "420 of 500 trial credits", else "N of M credits left". */
export declare function creditsLeftText(credits: Credits): string;
/** "Trial: 120 of 500 credits used · 380 left · 9 days left"; days only when the platform said. */
export declare function creditsUsageText(credits: Credits): string;
/** The sentence for no credits left, and the one thing that gets more when there is one. */
export declare function creditsUsedText(credits: Credits): {
    said: string;
    action?: string;
};
/** The same, as one terminal line, with where to act when there is somewhere. */
export declare function creditsUsedLine(credits: Credits, planUrl: string): string;