type ValidateInput = (value: string) => boolean | string;
export type PromptLinePrinter = (line: string) => void;
interface PromptOption<T extends string> {
    hint?: string;
    label: string;
    value: T;
}
/**
 * Prompt adapter used by CLI scaffold flows and migration wizard flows.
 */
export interface ReadlinePrompt {
    close(): void;
    select<T extends string>(message: string, options: PromptOption<T>[], defaultValue?: number): Promise<T>;
    text(message: string, defaultValue: string, validate?: ValidateInput): Promise<string>;
}
/**
 * Output adapters used by prompt rendering and validation feedback.
 */
export interface ReadlinePromptOutput {
    /** Render one informational prompt line. */
    printLine?: PromptLinePrinter;
    /** Render one validation or selection error line. */
    errorLine?: PromptLinePrinter;
}
/**
 * Adapter interface for readline-style prompt interactions.
 *
 * Public CLI code uses the native readline implementation, while tests can
 * substitute lightweight doubles that expose the same `question` and `close`
 * methods.
 */
export interface ReadlineQuestionAdapter {
    /** Close the underlying prompt interface and release any open handles. */
    close(): void;
    /**
     * Render one prompt and resolve with the collected answer string.
     *
     * @param query Prompt text written to the active output stream.
     * @param callback Callback that receives the entered answer.
     */
    question(query: string, callback: (answer: string) => void): void;
}
/**
 * Create the default readline-backed prompt implementation for the CLI.
 *
 * @param output Optional line printers for prompt and validation output.
 * @returns A prompt adapter that reads from stdin and writes to stdout.
 */
export declare function createReadlinePrompt(output?: ReadlinePromptOutput): ReadlinePrompt;
/**
 * Build a prompt adapter around a supplied readline-style question interface.
 *
 * This keeps the production CLI path unchanged while letting tests validate
 * retry behavior without stubbing global stdin/stdout.
 *
 * @param rl Readline-compatible question adapter.
 * @param output Optional line printers for prompt and validation output.
 */
export declare function createReadlinePromptWithInterface(rl: ReadlineQuestionAdapter, output?: ReadlinePromptOutput): ReadlinePrompt;
export {};