import { stripAnsi, visualWidth } from "../../stdlib/layout/ansi.js";
import type { Element } from "../../tui/elements.js";
import type { KeyEvent } from "../../tui/input/types.js";
import type { Screen } from "../../tui/screen.js";
import type { LabelingSessionController } from "./controller.js";
import type { SessionAction, SessionSnapshot } from "./session.js";
import type { Fields } from "./types.js";
export { stripAnsi, visualWidth };
/**
 * Highlight markdown, but fall back to plain text if the render lost content.
 *
 * A renderer that silently drops most of a document still produces a screen
 * that looks plausible, which is the worst possible failure for a tool whose
 * whole job is showing you what to judge.
 */
export declare function renderMarkdownSafely(source: string): string;
export type ChecklistRender = {
    lines: string[];
    focusLine: number;
};
/** The right pane's lines, plus which line the focused question starts on so
 *  the viewport can keep it visible. */
export declare function renderChecklist(snapshot: SessionSnapshot, width: number): ChecklistRender;
export type RenderArgs = {
    snapshot: SessionSnapshot;
    title: string;
    width: number;
    height: number;
    /** Left-pane scroll position, owned by the loop. */
    scroll: number;
    /** The output body, already highlighted and wrapped to the left pane. */
    body: string[];
};
export declare function paneHeightFor(height: number): number;
export declare function leftPaneWidthFor(width: number): number;
/**
 * Build the frame as an Element tree.
 *
 * Pure, and laid out by the same engine the terminal uses — so a test asserts
 * on the real frame rather than on a string this module assembled by hand.
 */
export declare function labelScreen(args: RenderArgs): Element;
/**
 * Translate a keystroke into a domain action.
 *
 * Returns null for keys the loop handles itself (scrolling, quitting) or
 * ignores. Events arrive already parsed by the TUI input layer, which owns
 * escape-sequence reassembly and bracketed paste.
 */
export declare function actionForKey(event: KeyEvent, editing: boolean): SessionAction | null;
/** Vim-style paging. Cmd+arrow is not bindable — terminals do not transmit the
 *  Cmd modifier. */
export declare function scrollDelta(event: KeyEvent, paneHeight: number): number;
export declare function isQuitKey(event: KeyEvent): boolean;
export declare function orderFieldNames(fields: Fields): string[];
/**
 * Every field as one scrollable block: a dim header, then the value.
 *
 * Field names come from a charset that cannot express a control character or a
 * style tag, but the values are arbitrary text from a model, so they go through
 * `sanitizeUntrusted` before anything else touches them.
 */
export declare function renderFields(fields: Fields, width: number): string[];
export type RunLabelTuiArgs = {
    controller: LabelingSessionController;
    screen: Screen;
    title?: string;
    /** Current terminal size, read before every draw. Screen stores its
     *  dimensions, so without this a resize leaves stale pane widths, wrapping
     *  and scroll bounds until restart. */
    currentSize?: () => {
        width: number;
        height: number;
    };
};
export declare function runLabelTui(args: RunLabelTuiArgs): Promise<void>;