import { BaseConnector } from '../../base/base.connector';
import type { ChatSendResult, IChatConnector, IChatOptions, IChatProvider, ISendMessageSuccessResponse, WithPassthrough } from '../../types';
import { ChannelTypeEnum } from '../../types';
import type { RocketChatConfig } from './rocket-chat.config';
import type { RocketChatNarrowedInput } from './rocket-chat.types';
/**
 * Webhook-URL-as-auth: the webhook URL itself is the credential.
 *
 * Rocket.Chat Incoming Webhooks accept Slack-compatible JSON; the webhook URL
 * itself is the credential (no `X-Auth-Token` / `X-User-Id` headers). The
 * webhook returns `{ success: true }` JSON on success — no `message_id` is
 * surfaced, so `providerMessageId` is always `null`.
 *
 * The camelCase→snake_case mapping for Slack-compat attachment fields lives in
 * the private `toWireAttachment` method below (explicit
 * per-connector mapping, NOT generic middleware).
 */
export declare class RocketChatChatConnector extends BaseConnector implements IChatConnector, IChatProvider {
    private readonly config;
    readonly id: "rocket-chat";
    readonly channelType: ChannelTypeEnum.CHAT;
    constructor(config: RocketChatConfig, fetchImpl?: typeof fetch);
    /**
     * Thinwrap-native send. Implements `IChatConnector`.
     *
     * `to` is intentionally absent from `RocketChatNarrowedInput` — the webhook
     * URL targets the (default) channel directly. Snake_case wire keys
     * inside attachments (`author_name`, `author_link`, `author_icon`,
     * `title_link`, `image_url`, `thumb_url`) are written explicitly
     * no `Casing` helper is invoked. Top-level Rocket.Chat fields
     * (`alias`, `avatar`, `emoji`, `channel`, `tmid`, `tshow`) are already
     * Rocket.Chat-wire-native and pass through verbatim.
     */
    send(input: RocketChatNarrowedInput): Promise<ChatSendResult>;
    /**
     * Shared by `.send()` and `sendMessage()`, so a Novu `options.webhookUrl`
     * override gets the same presence + https checks and redaction as the
     * configured URL.
     */
    private postToWebhook;
    /**
     * Map camelCase narrowed attachment fields to Slack-compat snake_case wire
     * keys. Lives on the connector (NOT a shared utility):
     * explicit per-connector mapping for the Slack-compat-attachment-shape
     * contract this connector owns.
     *
     * Same-form fields (`color`, `pretext`, `title`, `text`, `fields`, `footer`,
     * `timestamp`, `fallback`) pass through untouched. Unknown extension keys
     * are preserved verbatim via the `[k: string]: unknown` index signature.
     */
    private toWireAttachment;
    /**
     * HTTP-layer mapping. ConnectorError carries no
     * `retryAfterSeconds` field — retry is consumer policy:
     * parsed seconds embedded in `providerMessage` text, raw header preserved on
     * `cause.retryAfter`. Wrapper performs no retry.
     *
     * 401/403/404 all map to `auth_failed` — invalid, disabled, or
     * deleted Incoming Webhook URLs are all credential failures.
     */
    private mapVendorError;
    sendMessage(options: IChatOptions, bridgeProviderData?: WithPassthrough<Record<string, unknown>>): Promise<ISendMessageSuccessResponse>;
}