import type { ChatMetadata } from "../transport/types.js";
/** 一次隔离工作流。非话题群时 threadId 为空，scopeKey === chatId。 */
export interface SessionScope {
    chatId: string;
    platformChatId: string;
    threadId?: string;
    scopeKey: string;
    isolated: boolean;
    /** 话题群/话题形式群即使关掉隔离，也禁止 create 新话题。 */
    strict: boolean;
}
export declare const CHAT_MODE_TTL_MS: number;
/** 话题形式群与话题群同等隔离（D11）。整机 kill-switch 仍是 NIUBOT_TOPIC_ISOLATION=0。 */
export declare const ISOLATE_TOPIC_FORM_GROUPS = true;
export declare function buildScopeKey(chatId: string, threadId?: string): string;
export declare function parseScopeKey(key: string): {
    chatId: string;
    threadId?: string;
};
export declare function shouldIsolateChat(meta: Pick<ChatMetadata, "chatMode" | "groupMessageType">): boolean;
export declare function shouldStrictTopicReply(meta: Pick<ChatMetadata, "chatMode" | "groupMessageType">): boolean;
export declare function resolveSessionScope(input: {
    chatId: string;
    platformChatId: string;
    chatType: "p2p" | "group";
    chatMode?: string | null;
    groupMessageType?: string | null;
    threadId?: string;
}): SessionScope;
export declare function scopeForMessage(scopeKey: string, platformChatId: string): SessionScope;