/**
 * Yeaft CLI process driver for AgentLink.
 *
 * MVP integration:
 * - Each conversation owns one `yeaft --input-format stream-json --output-format stream-json` process
 * - User turns are written to stdin as JSONL prompt messages
 * - Yeaft session ids are generated with the required `session_...` shape
 * - JSONL stdout is translated into backend_event messages
 * - Session history is read best-effort from ~/.yeaft/sessions and <workDir>/.yeaft/sessions
 */
import { type ChildProcess } from 'child_process';
import type { SendFn } from './claude.js';
import type { GlobalSessionInfo, SessionInfo } from './history.js';
import type { HistoryMessage } from './history-message-transform.js';
import { yeaftCapabilities, type UsageInfo } from './backends/types.js';
export interface YeaftConversationState {
    conversationId: string;
    child: ChildProcess | null;
    abortController: AbortController | null;
    yeaftSessionId: string | null;
    lastYeaftSessionId: string | null;
    workDir: string;
    turnActive: boolean;
    providerId: string;
    model: string | null;
    effort: string | null;
    vps: string[];
    defaultVpId: string | null;
    turnId: string | null;
    stateVersion: number;
    heartbeatTimer: ReturnType<typeof setInterval> | null;
    sessionNotified: boolean;
    startedToolIds: Set<string>;
    pendingToolInputs: Map<string, unknown>;
    lastUsage: UsageInfo | null;
    stderrBuf: string;
}
export interface YeaftRunOptions {
    model?: string;
    effort?: string;
    vps?: string[];
    vp?: {
        id?: string;
    };
}
interface YeaftChatFile {
    name: string;
    mimeType: string;
    data: string;
}
interface YeaftSessionPage {
    sessions: SessionInfo[];
    hasMore: boolean;
    nextCursor?: string;
}
interface YeaftGlobalSessionPage {
    sessions: GlobalSessionInfo[];
    hasMore: boolean;
    nextCursor?: string;
    indexState: 'ready';
}
export declare function addYeaftSendFn(fn: SendFn): () => void;
export declare function _resetResolvedYeaftPathForTests(): void;
export declare function getYeaftConversation(conversationId: string): YeaftConversationState | undefined;
export declare function getYeaftConversations(): Map<string, YeaftConversationState>;
export declare function rebindYeaftConversation(yeaftSessionId: string, newConvId: string): boolean;
export declare function createYeaftPlaceholder(conversationId: string, opts?: {
    providerId?: string;
}): void;
export declare function restartYeaftConversation(conversationId: string, opts?: {
    providerId?: string;
    model?: string;
    effort?: string;
    vps?: string[];
}): {
    wasTurnActive: boolean;
    yeaftSessionId: string | null;
};
export interface YeaftChatOptions {
    resumeSessionId?: string;
    providerId?: string;
    yeaftOptions?: YeaftRunOptions;
}
export declare function handleYeaftChat(conversationId: string, text: string, workDir: string, options?: YeaftChatOptions, files?: YeaftChatFile[]): void;
export declare function handleYeaftUserAnswer(requestId: string, answers: Record<string, unknown>, opts?: {
    conversationId?: string;
}): void;
export declare function cancelYeaftExecution(conversationId: string): void;
export declare function cleanupAllYeaftConversations(): void;
export declare function evictByYeaftSessionId(yeaftSessionId: string): boolean;
export declare function listYeaftSessions(workDir: string): SessionInfo[];
export declare function listYeaftSessionsPage(workDir: string, options?: {
    limit?: number;
    cursor?: string;
}): YeaftSessionPage;
export declare function listAllYeaftSessionsPage(options?: {
    limit?: number;
    cursor?: string;
}): YeaftGlobalSessionPage;
export declare function listAllYeaftSessions(): GlobalSessionInfo[];
export declare function readYeaftSessionMessages(workDir: string, sessionId: string): HistoryMessage[];
export declare function renameYeaftSession(workDir: string, sessionId: string, newTitle: string): boolean;
export declare function deleteYeaftSession(workDir: string, sessionId: string): boolean;
export declare function moveYeaftSession(fromWorkDir: string, toWorkDir: string, sessionId: string): boolean;
export { yeaftCapabilities };