import type { ProgressFile, ProgressSnapshot, RankLadderEntry } from "./types.js";
export declare const MAX_LEVEL = 1000;
/**
 * Cumulative XP required to reach level n (level 1 = 0).
 *
 * Levels 2–50 keep the original 100 × N^1.6 curve untouched. Past the knee the
 * exponential would balloon to millions per level, so the cost switches to a linear
 * ramp that starts exactly at the knee step (~1.7k) and grows to ~3.6k at level 1000
 * — roughly 2.53M XP for the full climb, steady instead of a wall.
 */
export declare function xpForLevel(n: number): number;
/** Level for a cumulative XP total (1..MAX_LEVEL). */
export declare function levelForXp(xp: number): number;
export interface RankInfo {
    level: number;
    name: string;
    tier: number;
    tierName: string;
    tierGlyph: string;
    effectId: string;
}
/** Rank metadata for a level (clamped to 1..MAX_LEVEL). */
export declare function rankForLevel(level: number): RankInfo;
/** Build the broadcast snapshot the webview renders verbatim. */
export declare function buildSnapshot(file: ProgressFile): ProgressSnapshot;
/**
 * One entry per named rank (145 of them), not per level — above the knee a rank spans
 * 10 levels, so a per-level ladder would ship 1000 near-duplicate rungs on every frame.
 * `level` is the first level at which the rank is earned.
 */
export declare function rankLadder(): RankLadderEntry[];
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