import { type QuickCommitAiOptions } from "./git-quick-commit.js";
import type { ConversationTurn } from "./types.js";
/**
 * PTY 终端视图里，只有底部输入框整段提交（shortcutKey=enter_text）才总结标题。
 * 逐键 pty_input / 方向键 / 单独回车不能触发，避免把按键当主题。
 */
export declare function shouldGenerateSessionTopicFromPtyInput(view?: "chat" | "terminal", shortcutKey?: string): boolean;
export interface SessionTopic {
    title: string;
    description: string;
}
export interface SessionTopicRequest {
    messages?: readonly ConversationTurn[];
    input: string;
    cwd?: string;
    language?: string;
    ai?: QuickCommitAiOptions;
    onGenerating(generating: boolean): void;
    onTopic(topic: SessionTopic): void;
    onError(error: unknown): void;
}
export declare function isSameSessionTitle(left: string, right: string): boolean;
/** Parent task / directory names must not become a terminal's displayed title. */
export declare function collectSessionTopicBlocklist(input: {
    taskName?: string | null;
    workspaceName?: string | null;
    cwd?: string;
}): string[];
export declare function shouldAcceptGeneratedSessionTitle(title: string, blockedTitles?: readonly string[]): boolean;
/** Immediate title from the user's command, without waiting for the model. */
export declare function summarizeSessionTitleFromInput(input: string, options?: {
    blockedTitles?: readonly string[];
}): string;
export declare function summarizeSessionDescriptionFromInput(input: string): string;
export declare function provisionalSessionTopic(input: string, blockedTitles?: readonly string[]): SessionTopic | null;
export declare function sessionTopicBlocklistForSnapshot(snapshot: {
    cwd?: string;
    workspaceTaskId?: string;
}, storage: {
    getWorkspaceTask(id: string): {
        name: string;
        workspaceId: string;
    } | null;
    getWorkspace(id: string): {
        name: string;
    } | null;
}): string[];
/** Collect every completed user turn plus the newly submitted input in order. */
export declare function collectSessionTopicMessages(messages: readonly ConversationTurn[] | undefined, input: string): string[];
export declare function generateSessionTopic(userMessages: readonly string[], cwd?: string, language?: string, ai?: QuickCommitAiOptions): Promise<SessionTopic>;
/**
 * Coalesces title refreshes per session. A newer user message invalidates an
 * in-flight result and is summarized together with every earlier user turn.
 */
export declare class SessionTopicCoordinator {
    private readonly generate;
    private readonly states;
    private disposed;
    constructor(generate?: typeof generateSessionTopic);
    request(sessionId: string, request: SessionTopicRequest): void;
    clear(): void;
    private run;
}