import type { ForumChannel, ThreadChannel, Guild, TextChannel } from 'discord.js';
/**
 * Ensures both the forum channel and notification channel exist.
 * Creates them if their IDs are null, then persists the IDs via saveConfig.
 */
export declare function ensureForums(guild: Guild, config: {
    forumChannelId: string | null;
    notificationChannelId: string | null;
}, saveConfig: (key: 'forumChannelId' | 'notificationChannelId', value: string) => Promise<void>): Promise<{
    forumChannel: ForumChannel | TextChannel;
    notificationChannel: TextChannel;
}>;
/**
 * Creates a new thread for a session.
 * - Forum Channel: creates a forum post (thread with initial message)
 * - Text Channel: creates a public thread
 */
export declare function createSessionThread(forumChannel: ForumChannel | TextChannel, name: string): Promise<ThreadChannel>;
/**
 * Edits the starter message of a session thread.
 *
 * In TextChannel mode the starter message is the parent-channel preview the
 * thread was started from; in Forum mode it's the post's first message. Both
 * default to "⏳ Setting up..." when the thread is created — this lets callers
 * replace that placeholder once the session is ready.
 */
export declare function updateSessionThreadStarter(thread: ThreadChannel, content: string): Promise<void>;
/**
 * Fetches and renames a thread. Ignores all errors (thread may be deleted/archived).
 */
export declare function renameSessionThread(guild: Guild, threadId: string, newName: string): Promise<void>;
/**
 * Archives and locks a thread instead of permanently deleting it.
 * Unlike Telegram (which just closes a topic), Discord delete is permanent
 * and destroys all messages. Archiving preserves the conversation history.
 */
export declare function deleteSessionThread(guild: Guild, threadId: string): Promise<void>;
/**
 * If the thread is archived, unarchives it.
 */
export declare function ensureUnarchived(thread: ThreadChannel): Promise<void>;
/**
 * Builds a Discord deep link URL to a channel/thread, optionally to a specific message.
 */
export declare function buildDeepLink(guildId: string, channelId: string, messageId?: string): string;