/**
 * @oxpulse/chat-widget — Thread panel (#126).
 *
 * Shows a thread view: root message + reply list + inline composer.
 * Opens as an overlay panel within the widget container.
 *
 * Zero-third-party-dep — plain DOM, matching the widget's existing pattern.
 *
 * Lifecycle:
 *   open(rootMsgId) — fetches thread via getThread(), renders panel
 *   close()         — removes panel from DOM, restores focus
 *
 * The panel calls back to the consumer for:
 *   - sendReply(text) — consumer sends via SDK with threadRootMsgId
 *   - resolveName(uid) — display name lookup from roster
 */
/** Minimal row shape needed by the thread panel. */
export interface ThreadRow {
    msgId: string;
    senderUid: string;
    text?: string;
    createdAt: string;
    threadRootMsgId?: string | null;
}
export interface ThreadPanelOptions {
    /** Container element to render the panel inside. */
    container: HTMLElement;
    /** Fetch thread replies from the SDK. */
    getThread: (rootMsgId: string) => Promise<ThreadRow[]>;
    /** Send a reply in the thread. */
    sendReply: (text: string, rootMsgId: string) => Promise<void>;
    /** Resolve userId → display name. */
    resolveName?: (userId: string) => string | undefined;
    /** The current user's ID — for "You" label. */
    selfUid: string;
    /** Optional abort signal. */
    signal?: AbortSignal;
    /** BCP-47 tag or resolved Locale. */
    lang?: string;
    /** Called when the panel closes. */
    onClose?: () => void;
}
export declare class ThreadPanel {
    #private;
    constructor(opts: ThreadPanelOptions);
    get isOpen(): boolean;
    /** Open the thread panel for the given root message. */
    open(rootRow: ThreadRow): Promise<void>;
    /** Close the panel. */
    close(): void;
    /** Add a reply to the panel (called when a new SSE message arrives in this thread). */
    addReply(row: ThreadRow): void;
}
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