import { segment } from './sms-segmenter';
import { SmsEditorOptions } from './sms-editor.types';
/**
 * Headless SMS message editor. Enhances a `<textarea>` and reports live
 * encoding (GSM-7 vs UCS-2), character count and billable segment count — the
 * things that actually affect SMS cost. No formatting toolbar (SMS is plain
 * text). Optional emoji picker via the same `renderPicker` plugin contract as
 * `textarea-emoji` (note: emoji force UCS-2). An optional `[data-c42-sms-preview]`
 * element receives the live (escaped) message text. It applies no visual styles.
 *
 * Markup:
 * ```html
 * <div data-c42-sms-editor>
 *   <textarea data-c42-sms-input></textarea>
 *   <div class="c42-sms-editor-status">
 *     <span data-c42-sms-counter></span>
 *     <span data-c42-sms-segments></span>
 *     <span data-c42-sms-encoding></span>
 *     <span class="c42-sms-editor-emoji">
 *       <button data-c42-sms-trigger aria-label="Emoji">🙂</button>
 *       <div data-c42-sms-picker hidden></div>
 *     </span>
 *   </div>
 *   <!-- optional live preview (e.g. inside an opt-in device frame) -->
 *   <div data-c42-sms-preview aria-live="polite"></div>
 * </div>
 * ```
 */
export declare class SmsEditor {
    private readonly root;
    private readonly input;
    private readonly trigger;
    private readonly picker;
    private readonly counterEl;
    private readonly segmentsEl;
    private readonly encodingEl;
    private readonly preview;
    private readonly maxLength?;
    private readonly maxSegments?;
    private cleanups;
    constructor(root: HTMLElement, options?: SmsEditorOptions);
    private init;
    private listen;
    /** Recompute segmentation, reflect it on the DOM and emit a change event. */
    private sync;
    isPickerOpen(): boolean;
    togglePicker(): void;
    openPicker(): void;
    closePicker(): void;
    /** Insert text (e.g. an emoji) at the caret, respecting maxLength if set. */
    insertText(text: string): void;
    /** Current message text. */
    getText(): string;
    /** Current segmentation report. */
    getSegmentInfo(): ReturnType<typeof segment>;
    get value(): string;
    set value(v: string);
    /** Focus the textarea. */
    focus(): void;
    /** Subscribe to a DOM event on the root element. Returns an unsubscribe fn. */
    on<E extends Event = Event>(event: string, handler: (event: E) => void): () => void;
    destroy(): void;
}