/**
 * (c) Copyright Ascensio System SIA 2026
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 *
 * @license
 */
/**
 * @module
 * @mergeModuleWith <project>
 */
import type { TFrameConfig } from "../types";
/**
 * The ONLYOFFICE Apps CSP validation endpoint. Used internally to check
 * whether the current host domain is allowed in the target ONLYOFFICE Apps instance.
 *
 * @see {@link TFrameConfig.checkCSP} — enables/disables CSP validation on frame init.
 */
export declare const CSPApiUrl: "/api/2.0/security/csp";
/**
 * The prefix for iframe `name` attribute. The full name is `{FRAME_NAME}__#{frameId}`.
 * Used internally by the postMessage protocol to route messages to the correct frame.
 *
 * @see {@link TFrameConfig.frameId} — the unique identifier appended to this prefix.
 */
export declare const FRAME_NAME: "frameDocSpace";
/**
 * The default configuration applied to every frame before user overrides.
 * Merge order in {@link SDKInstance.initFrame}: `defaultConfig` → instance config → user config.
 *
 * Override only the fields you need — unset fields fall back to these defaults.
 *
 * @example
 * ```typescript
 * // Minimal config — everything else comes from defaultConfig
 * sdk.init({
 *   frameId: "ds-frame",
 *   src: "https://portal.example.com",
 *   mode: "manager",
 * });
 * ```
 */
export declare const defaultConfig: TFrameConfig;
/**
 * Error message shown when the host domain is not in the ONLYOFFICE Apps CSP allowlist.
 * Displayed inside the iframe via `srcdoc` when {@link TFrameConfig.checkCSP} is `true` and validation fails.
 */
export declare const cspErrorText: "The current domain is not set in the Content Security Policy (CSP) settings.";
/**
 * Error message passed to {@link TFrameEvents.onAppError} when a method is called
 * before the postMessage channel is established (i.e. before the first valid message from the iframe).
 */
export declare const connectErrorText: "Message bus is not connected with frame";
/**
 * Reply the ONLYOFFICE Apps portal sends as `methodReturnData` when the current mode has no handler
 * for the called method. `SDKInstance.#handleMethodResponse` rejects it with {@link SDKErrorCode.ModeMismatch}.
 * @internal
 */
export declare const wrongMethodText: "Wrong method for this mode";
/**
 * How long before an OAuth access token expires the SDK asks {@link TFrameConfig.getToken} for a
 * fresh one and pushes it into the frame (proactive refresh), in milliseconds.
 * @internal
 */
/**
 * Longest delay `setTimeout` accepts (2^31 - 1 ms); longer waits are split into slices.
 * @internal
 */
export declare const MAX_TIMER_DELAY_MS = 2147483647;
export declare const TOKEN_REFRESH_LEAD_MS: 60000;