import type { Screen } from '../Screen';
/** One hunk in the interactive `/apply --interactive` picker. */
export interface HunkPickerItem {
    /** File path this hunk belongs to. */
    path: string;
    /** 0-based hunk index within the file diff. */
    hunkIndex: number;
    /** Human-readable hunk header, e.g. `@@ -12,3 +12,5 @@`. */
    header: string;
    /** Pre-formatted diff lines to display. */
    lines: string[];
}
export interface HunkPickerOptions {
    title: string;
    items: HunkPickerItem[];
    onComplete: (accepted: Array<{
        path: string;
        hunkIndex: number;
    }>) => void;
}
export interface HunkPickerState {
    open: boolean;
    options: HunkPickerOptions | null;
    index: number;
    accepted: Array<{
        path: string;
        hunkIndex: number;
    }>;
}
export declare function createHunkPickerState(): HunkPickerState;
/** Minimal key shape App's KeyEvent satisfies. */
export interface HunkPickerKeyEvent {
    key: string;
}
/**
 * Handle one key event for the picker. Returns the (possibly updated) state
 * and whether the picker consumed the event (always true while open — the
 * picker is modal). `onComplete` from the options fires exactly once, from
 * `finish()`; after that the state is reset to closed.
 */
export declare function handleHunkPickerKey(state: HunkPickerState, event: HunkPickerKeyEvent): HunkPickerState;
/** Panel height the layout needs to reserve for the picker. */
export declare function hunkPickerPanelHeight(): number;
/**
 * Paint the picker into the screen. Mirrors the rendering previously inlined
 * in App.renderInlineHunkPicker.
 */
export declare function renderHunkPicker(screen: Screen, state: HunkPickerState, startY: number, width: number): void;