import { SessionManager } from "@earendil-works/pi-coding-agent";
export type { ResolvedSessionScope, ThreadRootMessage } from "./types.js";
/**
 * Returns the shared session directory for a conversation.
 * Channel sessions use a current pointer within this directory.
 * Thread sessions are stored as fixed files within the same directory.
 */
export declare function getChannelSessionDir(channelDir: string): string;
/**
 * Resolves the current active session file for a session directory.
 * Reads the "current" pointer file; creates a new session if none exists
 * or the pointed-to file is missing.
 */
export declare function resolveSessionFile(sessionDir: string): string;
/**
 * Resolve the current active session file for a session directory.
 * Creates a fully initialized persistent session with the provided cwd when none exists.
 */
export declare function resolveManagedSessionFile(sessionDir: string, cwd: string): string;
/**
 * Extracts the short UUID from a session file path.
 * e.g. "2026-04-05T00-00_7b54cf90.jsonl" → "7b54cf90"
 */
export declare function extractSessionUuid(sessionFile: string): string;
/**
 * Extracts the thread/suffix part of a session key.
 * "channelId:threadId" → "threadId", "channelId" → "channelId"
 */
export declare function extractSessionSuffix(sessionKey: string): string;
/**
 * Creates an empty timestamped file and updates the "current" pointer.
 * Used only by tests for placeholder-file scenarios.
 *
 * Order matters: write the session file first, then atomic-rename the pointer
 * last so a crash mid-create never leaves "current" pointing at a missing file.
 */
export declare function createNewSessionFile(sessionDir: string): string;
/**
 * Creates a new persistent session file with a proper SessionManager header and cwd.
 * Also updates the "current" pointer. Header is written before the pointer flips so a
 * partial create cannot leave "current" pointing at a missing file.
 */
export declare function createManagedSessionFile(sessionDir: string, cwd: string): string;
/**
 * Open a session file with an explicit cwd, even if the file does not exist yet.
 * This avoids SessionManager.open() falling back to process.cwd() for fresh sessions.
 */
export declare function openManagedSession(sessionFile: string, sessionDir: string, cwd: string): SessionManager;
/**
 * Creates or overwrites a fixed-path session file with a valid session header.
 */
export declare function createManagedSessionFileAtPath(sessionFile: string, cwd: string): string;
/**
 * Returns the fixed session file path for a Slack thread.
 */
export declare function getThreadSessionFile(channelDir: string, sessionKey: string): string;
/**
 * Try to resolve an existing current session file.
 * Returns null if no current pointer exists or the pointed file has no valid session header.
 */
export declare function tryResolveCurrentSession(sessionDir: string): string | null;
/**
 * Try to resolve an existing thread session file.
 * Returns the file path if found, or null if no valid thread session exists yet.
 */
export declare function tryResolveThreadSession(sessionFile: string): string | null;
/**
 * Resolve the channel's current session file path.
 * Returns null if no channel session exists.
 */
export declare function resolveChannelSessionFile(channelDir: string): string | null;
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