/**
 * The console's autopilot section (aidlc-console/AC-32, aidlc-console/AC-34,
 * aidlc-console/AC-35).
 *
 * Pure apart from the reads passed in. The section prints one line per item that
 * changed rather than redrawing a frame above the prompt, which would flood the
 * scroll-back every two seconds (design D6).
 *
 * @module
 */
import type { AutopilotItem, AutopilotPaths } from '../autopilot/state.js';
/** What a change line reports for one item. */
export interface ItemView {
    name: string;
    step: string;
    phase: string;
    event: string;
}
export declare function itemView(read: (path: string) => string | null, item: AutopilotItem): ItemView;
/** The fields whose change is worth a line (aidlc-console/AC-32). */
export declare function signature(v: ItemView): string;
/**
 * Lines for every item that appeared, changed or left since `prev`, cut to
 * `columns` (aidlc-console/AC-35). Returns the new signatures to pass next time.
 */
export declare function changeLines(prev: ReadonlyMap<string, string>, views: readonly ItemView[], columns: number | undefined): {
    lines: string[];
    next: Map<string, string>;
};
export type FocusAction = 'approve' | 'read' | 'log' | 'open' | 'forget' | 'leave' | null;
/**
 * One key in the focused section (aidlc-console/AC-34): up and down move the
 * selection, a letter names an action on it, Esc or Tab leaves.
 */
export declare function focusKey(selected: number, key: string, count: number): {
    selected: number;
    action: FocusAction;
};
/** The focused list, the selected item marked, then the keys. */
export declare function focusLines(views: readonly ItemView[], selected: number, columns: number | undefined): string[];
/**
 * The artifact a person would review for an item: the first artifact of the phase it
 * stopped after, else of its current phase. Null when neither names one that exists.
 */
export declare function reviewArtifact(read: (path: string) => string | null, item: Pick<AutopilotItem, 'name' | 'worktree' | 'review'>): string | null;
/** Where the driver writes an item's agent log (autopilot/driver.ts `logFile`). */
export declare function logFile(p: Pick<AutopilotPaths, 'logs'>, item: Pick<AutopilotItem, 'name'>): string;
/** The last `n` lines of a text. */
export declare function tail(text: string, n: number): string[];
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