import type { Element } from "../../tui/elements.js";
import type { KeyEvent } from "../../tui/input/types.js";
import type { RunRow } from "../rows.js";
import type { ExplorerAction, ExplorerView, Viewport } from "./explorerView.js";
export declare const TREND_GLYPHS = "\u2581\u2582\u2583\u2584\u2585\u2586\u2587";
export type TrendBuckets = {
    startMs: number;
    bucketMs: number;
    count: number;
};
/** Buckets spanning [minMs, maxMs]: day baseline, week when a day
 *  cannot fit, then repeated doubling until `count <= maxBuckets`. */
export declare function trendBuckets(minMs: number, maxMs: number, maxBuckets: number): TrendBuckets;
export declare class TrendView implements ExplorerView {
    readonly viewName: "trend";
    private rows;
    private colors;
    private message;
    setData(rows: RunRow[]): void;
    setProgress(): void;
    notify(message: string): void;
    helpLines(): string[];
    handleKey(event: KeyEvent): ExplorerAction;
    render(viewport: Viewport): Element;
    private agentRow;
    private bucketMeans;
    private latestSegment;
}