/**
 * Transcript fetching and VTT parsing for Teams meetings.
 *
 * Handles extracting transcript URLs from recording messages,
 * fetching VTT content from the AMS (Async Media Service),
 * and parsing VTT into structured entries.
 */
import type { TeamsToken, TranscriptEntry, TranscriptResult } from "../types.js";
/**
 * Extract the AMS transcript URL from a `RichText/Media_CallRecording` message.
 *
 * The message content is XML containing `<item type="amsTranscript" uri="...">`.
 * Returns null if no transcript URL is found.
 */
export declare function extractTranscriptUrl(messageContent: string): string | null;
/**
 * Extract the meeting title from a `RichText/Media_CallRecording` message.
 *
 * The title is in the `<OriginalName>` element inside the XML content.
 */
export declare function extractMeetingTitle(messageContent: string): string;
/**
 * Check whether a `RichText/Media_CallRecording` message represents
 * a successful recording (as opposed to started/failed).
 */
export declare function isSuccessfulRecording(messageContent: string): boolean;
/**
 * Parse VTT content into structured transcript entries.
 *
 * Handles the Teams VTT format with `<v Speaker Name>text</v>` tags
 * and HTML entities.
 */
export declare function parseVtt(vttContent: string): TranscriptEntry[];
/**
 * Fetch a transcript from the AMS (Async Media Service).
 *
 * Uses `Authorization: skype_token <token>` (note: different format from the
 * Chat Service `Authentication: skypetoken=<token>` header), or a Bearer
 * token when no skype token is available.
 */
export declare function fetchTranscriptVtt(token: TeamsToken, amsTranscriptUrl: string): Promise<string>;
/**
 * Fetch and parse the transcript for a conversation.
 *
 * 1. Fetches messages from the conversation
 * 2. Finds the latest `RichText/Media_CallRecording` message with status="Success"
 * 3. Extracts the AMS transcript URL from the XML content
 * 4. Fetches the VTT content from AMS
 * 5. Parses the VTT into structured entries
 */
export declare function fetchTranscript(token: TeamsToken, conversationId: string): Promise<TranscriptResult>;
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