import { Disposable, Event } from '@opensumi/ide-core-common';
import { IHistoryChatMessage } from '@opensumi/ide-core-common/lib/types/ai-native';
type IExcludeMessage = Omit<IHistoryChatMessage, 'id' | 'order'>;
export declare class MsgHistoryManager extends Disposable {
    private messageMap;
    private messageAdditionalMap;
    private readonly _onMessageChange;
    readonly onMessageChange: Event<IHistoryChatMessage[]>;
    private readonly _onMessageAdditionalChange;
    readonly onMessageAdditionalChange: Event<Record<string, any>>;
    constructor(data?: {
        additional: Record<string, any>;
        messages: IHistoryChatMessage[];
    });
    dispose(): void;
    get size(): number;
    clearMessages(): void;
    private doAddMessage;
    private get messageList();
    get lastMessageId(): string | undefined;
    getMessages(): IHistoryChatMessage[];
    addUserMessage(message: Required<Pick<IExcludeMessage, 'agentId' | 'agentCommand' | 'content' | 'relationId' | 'images'>>): string;
    addAssistantMessage(message: Omit<IExcludeMessage, 'role'>): string;
    updateAssistantMessage(id: string, message: Omit<IExcludeMessage, 'role'>): void;
    setMessageAdditional(id: string, additional: Record<string, any>): void;
    getMessageAdditional(id: string): Record<string, any>;
    get sessionAdditionals(): Map<string, Record<string, any>>;
    toJSON(): {
        messages: IHistoryChatMessage[];
        additional: {
            [k: string]: Record<string, any>;
        };
    };
}
export {};
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