import type { HealthCheckResult } from './types.ts';
/**
 * The Result class offers a chainable API to create health check results
 *
 * @example
 * ```typescript
 * // Success result
 * const success = Result.ok('Database connection is healthy')
 *
 * // Warning result
 * const warning = Result.warning('High memory usage detected')
 *
 * // Error result
 * const error = Result.failed('Database connection failed', new Error('Connection timeout'))
 *
 * // With metadata
 * const result = Result.ok('Service is running')
 *   .setMetaData({ responseTime: 120, uptime: 86400 })
 * ```
 */
export declare class Result implements HealthCheckResult {
    message: string;
    status: HealthCheckResult['status'];
    finishedAt: Date;
    /**
     * Creates a result with success status
     *
     * @param message - The success message
     *
     * @example
     * ```typescript
     * const result = Result.ok('Database connection is healthy')
     * ```
     */
    static ok(message: string): Result;
    /**
     * Creates a result with failed status
     *
     * @param message - The error message or Error object
     * @param error - Optional error object when message is a string
     *
     * @example
     * ```typescript
     * const result1 = Result.failed('Database connection failed')
     * const result2 = Result.failed('Service error', new Error('Connection timeout'))
     * const result3 = Result.failed(new Error('Critical failure'))
     * ```
     */
    static failed(message: string, error?: Error): Result;
    static failed(error: Error): Result;
    /**
     * Creates a result with warning status
     *
     * @param message - The warning message
     *
     * @example
     * ```typescript
     * const result = Result.warning('Memory usage is above 80%')
     * ```
     */
    static warning(message: string): Result;
    /**
     * Optional metadata associated with the result
     */
    meta?: HealthCheckResult['meta'];
    /**
     * Creates a new Result instance
     *
     * @param message - The result message
     * @param status - The result status
     * @param finishedAt - The timestamp when the check finished
     */
    constructor(message: string, status: HealthCheckResult['status'], finishedAt: Date);
    /**
     * Updates the finished at timestamp for the result
     *
     * @param finishedAt - The new finish timestamp
     *
     * @example
     * ```typescript
     * const result = Result.ok('Check completed')
     *   .setFinishedAt(new Date('2024-01-01T10:00:00Z'))
     * ```
     */
    setFinishedAt(finishedAt: Date): this;
    /**
     * Defines custom meta-data for the result. Calling this method will
     * override any existing meta-data
     *
     * @param metaData - The metadata object to set
     *
     * @example
     * ```typescript
     * const result = Result.ok('Service is healthy')
     *   .setMetaData({ responseTime: 120, uptime: 86400 })
     * ```
     */
    setMetaData(metaData: Record<string, any>): this;
    /**
     * Merges custom meta-data with the existing meta-data. A shallow
     * merge is performed
     *
     * @param metaData - The metadata object to merge
     *
     * @example
     * ```typescript
     * const result = Result.ok('Service is healthy')
     *   .setMetaData({ responseTime: 120 })
     *   .mergeMetaData({ uptime: 86400 })
     * // result.meta = { responseTime: 120, uptime: 86400 }
     * ```
     */
    mergeMetaData(metaData: Record<string, any>): this;
    /**
     * Converts the result to a plain object
     *
     * @example
     * ```typescript
     * const result = Result.ok('Service is healthy')
     * const json = result.toJSON()
     * console.log(json) // { message: 'Service is healthy', status: 'ok', finishedAt: Date }
     * ```
     */
    toJSON(): HealthCheckResult;
}