import { AcEdPromptKeywordOptions } from '../prompt/AcEdPromptKeywordOptions';
import { AcEdCommandLine } from '../ui/AcEdCommandLine';
import { AcEdInputSession } from './AcEdInputSession';
/**
 * Interactive keyword-input session bound to the command line.
 *
 * This session is responsible for:
 * - Rendering the keyword prompt UI
 * - Applying Enter/Escape behavior for keyword picking
 * - Handling default-keyword and `AllowNone` semantics on empty Enter
 * - Restoring command-line input state when the session ends
 *
 * The resolved session value is always a string:
 * - keyword global name when a keyword is selected
 * - empty string when the prompt ends as "none"/cancel path
 */
export declare class AcEdKeywordSession extends AcEdInputSession<string> {
    private cli;
    private options;
    private allowTyping;
    /**
     * Keyword parser/validator shared by Enter handling.
     *
     * It maps user input (display/local/global/alias) to canonical
     * global keyword names and rejects invalid text.
     */
    private handler;
    /**
     * Creates a keyword session instance.
     *
     * @param cli - Command-line UI adapter used to render prompt and control input state
     * @param options - Keyword prompt options (message, keyword set, default, `allowNone`)
     * @param allowTyping - When false, typed input is disabled and only clickable keywords are accepted
     */
    constructor(cli: AcEdCommandLine, options: AcEdPromptKeywordOptions, allowTyping?: boolean);
    /**
     * Initializes session UI state.
     *
     * Behavior:
     * - Clears any stale command-line input text
     * - Sets input read-only depending on `allowTyping`
     * - Renders clickable keyword prompt
     * - Focuses command-line input for immediate interaction
     */
    protected onStart(): void;
    /**
     * Handles Enter key input for this keyword session.
     *
     * Resolution order:
     * 1. If typing is disabled, Enter is treated as consumed.
     * 2. Empty input:
     *    - use default keyword when present and enabled
     *    - otherwise resolve empty string when `allowNone` is true
     *    - otherwise reject as invalid (session remains active)
     * 3. Non-empty input:
     *    - parse as keyword via {@link AcEdKeywordHandler}
     *    - resolve parsed global keyword when valid
     *    - reject when invalid
     *
     * @param value - Raw text currently typed in command-line input
     * @returns `true` when Enter is consumed; `false` when input is invalid
     */
    handleEnter(value: string): boolean;
    /**
     * Handles Escape key for this session.
     *
     * Escape resolves the session with an empty string, which the caller
     * interprets as cancel/none depending on prompt context.
     */
    handleEscape(): void;
    /**
     * Restores command-line state after session completion.
     *
     * This always:
     * - Re-enables input editing
     * - Clears prompt/input visuals from command line
     */
    protected cleanup(): void;
}
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