/**
 * Adapter — Phase 5 of the Ink migration. Bridges the Ink App tree to
 * the rest of the codebase that imports PromptController.
 *
 * Goal: zero changes to interactiveShell.ts. When EROSOLAR_INK=1, the
 * factory returns an Ink-backed instance that satisfies the same
 * surface; otherwise it returns the existing PromptController. This is
 * the migration's safety valve — production keeps the old path until
 * we've grown enough Ink coverage to flip the default.
 *
 * The adapter is intentionally narrow today: it covers prompt input
 * + status + history + suggestions. Methods on PromptController that
 * we haven't ported yet (pinned prompt, secret-mode panels, the chrome
 * banner, etc.) are no-ops or fall through to a tiny event emitter so
 * existing callers don't crash. Each phase of the migration replaces
 * one of those no-ops with a real Ink-backed implementation.
 */
import { EventEmitter } from 'node:events';
import type { ChatItem } from './ChatStatic.js';
export interface InkPromptAdapterCallbacks {
    onSubmit: (text: string) => void;
    onCancel?: () => void;
    onCtrlC?: (info: {
        hadBuffer: boolean;
    }) => void;
}
export interface InkPromptAdapter extends EventEmitter {
    start(): void;
    stop(): void;
    setStatusMessage(message: string | null): void;
    setModeMessage(message: string | null): void;
    appendHistory(item: ChatItem): void;
    setSuggestions(suggestions: {
        label: string;
        hint?: string;
    }[]): void;
    /** Drive the prompt's initial buffer (e.g. resuming an interrupted line). */
    setBuffer(text: string): void;
    /** True when EROSOLAR_INK=1 was honoured at construction time. */
    readonly enabled: boolean;
}
/**
 * Returns true when the harness should mount the Ink-backed adapter.
 * Three signals — explicit env opt-in, never in plain mode, never under
 * a non-TTY pipe (Ink would refuse raw mode and crash).
 */
export declare function shouldUseInkAdapter(opts: {
    plainMode: boolean;
    isTty: boolean;
}): boolean;
/**
 * Construct a live adapter. The implementation lazy-imports the React +
 * Ink bundle so requiring this module from a non-Ink path doesn't pay
 * the parse cost — the production CLI only loads Ink when actually
 * mounting it.
 */
export declare function createInkPromptAdapter(callbacks: InkPromptAdapterCallbacks): Promise<InkPromptAdapter>;
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