/**
 * CTRF Cypress Node Plugin
 *
 * This module runs in the Cypress node process and:
 * 1. Registers a task handler to receive runtime messages from browser
 * 2. Stores runtime metadata keyed by test identity
 * 3. Provides access to stored data for the reporter to merge
 *
 * ## Setup
 *
 * In your cypress.config.ts:
 * ```ts
 * import { setupCtrfPlugin, getCtrfRuntimeStore } from 'cypress-ctrf-json-reporter/plugin'
 *
 * export default defineConfig({
 *   e2e: {
 *     setupNodeEvents(on, config) {
 *       setupCtrfPlugin(on)
 *       // ... other plugins
 *       return config
 *     }
 *   }
 * })
 * ```
 */
import type { CtrfCypressMessage } from './runtime';
type CypressPluginEvents = {
    (action: 'task', tasks: Record<string, (...args: any[]) => any>): void;
};
export declare const CTRF_TASK_NAME = "__ctrf_runtime_message";
/**
 * Store for runtime data, keyed by testKey (specRel::fullTitle::attemptIndex)
 */
declare class CtrfRuntimeStore {
    private data;
    /**
     * Store a runtime message for a test
     */
    addMessage(message: CtrfCypressMessage): void;
    /**
     * Deep merge two objects following CTRF merge rules:
     * - Arrays: concatenated
     * - Objects: recursively merged
     * - Primitives: overwritten
     */
    private deepMerge;
    /**
     * Get merged runtime data for a test key
     */
    getMerged(testKey: string): Record<string, unknown> | null;
    /**
     * Get merged runtime data by matching spec and test title
     * This is used by the reporter which has spec.relative and test.title array
     */
    getByTestIdentity(specRelative: string, titleArray: string[], attemptIndex: number): Record<string, unknown> | null;
    /**
     * Clear all stored data for a spec (called after spec completes)
     */
    clearSpec(specRelative: string): void;
    /**
     * Clear all stored data (called at end of run)
     */
    clearAll(): void;
    /**
     * Get all keys (for debugging)
     */
    getAllKeys(): string[];
}
/**
 * Get the runtime store instance (for use by reporter)
 */
export declare function getCtrfRuntimeStore(): CtrfRuntimeStore;
/**
 * Setup the CTRF plugin in Cypress node events.
 *
 * @param on - The Cypress `on` function from setupNodeEvents
 *
 * @example
 * ```ts
 * setupNodeEvents(on, config) {
 *   setupCtrfPlugin(on)
 *   return config
 * }
 * ```
 */
export declare function setupCtrfPlugin(on: CypressPluginEvents): void;
/**
 * Create a combined plugin setup that includes the CTRF reporter.
 * Use this if you want an all-in-one setup.
 *
 * @param on - The Cypress `on` function
 * @param reporterOptions - Options for the CTRF reporter
 */
export declare function setupCtrfReporterWithRuntime(on: CypressPluginEvents, reporterOptions?: Record<string, unknown>): void;
export {};