import type { ServerFrame, Message, ManifestAction, MessageContent, ConversationId, UserId, Subject } from './protocol/index.js';
export type SendStatus = 'pending' | 'sent' | 'delivered' | 'read';
export interface RenderMessage extends Message {
    clientMsgId?: string;
    status?: SendStatus;
}
/** Pure, DOM-free conversation state. Feed it ServerFrames (and local optimistic
 *  sends); read an ordered, de-duplicated view out. Ordering is by `seq`; the
 *  same message arriving twice (live + sync on reconnect) is collapsed by id —
 *  the structural fix for the old duplicate-bubble bug. */
export declare class ChatStore {
    readonly me: UserId;
    conversationId?: ConversationId;
    state: string;
    version: number;
    hasMoreHistory: boolean;
    lastReadByOthers: number;
    assignedAgentId: UserId | undefined;
    accent: string | undefined;
    subject: Subject | undefined;
    name: string | undefined;
    e2e: boolean;
    offline: boolean;
    offlineMessage: string;
    launcherMessage: {
        title: string;
        subtitle?: string;
    } | null;
    /** Server-authored prompts shown above the composer until the guest's first
     *  message (manifest `suggestedQuestions`). Host `quickReplies` win. */
    suggestedQuestions: string[];
    preChat: import('./protocol/frames.js').PreChatConfig | null;
    whiteLabel: boolean;
    readonly typing: Set<string>;
    readonly online: Set<string>;
    /** Live sentiment of the guest's latest message (agent-side only). */
    sentiment: 'positive' | 'neutral' | 'frustrated' | undefined;
    sentimentScore: number | undefined;
    private actions;
    private readonly byId;
    private readonly keyByClient;
    private _maxSeq;
    private _sorted;
    constructor(me: UserId);
    messages(): RenderMessage[];
    visibleActions(): ManifestAction[];
    /** Any manifest action by id, regardless of state/surface — used to open the
     *  form a `form`-kind message points at (search pre-fill). */
    actionById(id: string): ManifestAction | undefined;
    highestSeq(): number;
    addOptimistic(clientMsgId: string, content: MessageContent): RenderMessage;
    apply(frame: ServerFrame): void;
    private upsert;
    private markOwnStatus;
}