/**
 * @fileoverview Metrics client for the DeepSource API
 * This module provides functionality for working with DeepSource quality metrics.
 */
import { BaseDeepSourceClient } from './base-client.js';
import { MetricShortcode, RepositoryMetric, UpdateMetricThresholdParams, UpdateMetricSettingParams, MetricThresholdUpdateResponse, MetricSettingUpdateResponse, MetricHistoryParams, MetricHistoryResponse } from '../types/metrics.js';
/**
 * Client for interacting with DeepSource metrics API
 * @class
 * @extends BaseDeepSourceClient
 * @public
 */
export declare class MetricsClient extends BaseDeepSourceClient {
    /**
     * Fetches quality metrics from a DeepSource project
     * @param projectKey The project key to fetch metrics for
     * @param options Optional filter options
     * @returns Promise that resolves to an array of repository metrics
     * @throws {ClassifiedError} When the API request fails
     * @public
     */
    getQualityMetrics(projectKey: string, options?: {
        shortcodeIn?: MetricShortcode[];
    }): Promise<RepositoryMetric[]>;
    /**
     * Updates a metric threshold
     * @param params Threshold update parameters
     * @returns Promise that resolves to update response
     * @public
     */
    setMetricThreshold(params: UpdateMetricThresholdParams): Promise<MetricThresholdUpdateResponse>;
    /**
     * Updates metric settings (reporting and enforcement)
     * @param params Setting update parameters
     * @returns Promise that resolves to update response
     * @public
     */
    updateMetricSetting(params: UpdateMetricSettingParams): Promise<MetricSettingUpdateResponse>;
    /**
     * Fetches metric history data
     * @param params History request parameters
     * @returns Promise that resolves to metric history response
     * @public
     */
    getMetricHistory(params: MetricHistoryParams): Promise<MetricHistoryResponse | null>;
    /**
     * Builds GraphQL query for quality metrics
     * @private
     */
    private static buildQualityMetricsQuery;
    /**
     * Builds GraphQL mutation for updating metric threshold
     * @private
     */
    private static buildUpdateThresholdMutation;
    /**
     * Builds GraphQL mutation for updating metric setting
     * @private
     */
    private static buildUpdateSettingMutation;
    /**
     * Builds GraphQL query for metric history
     * @private
     */
    private static buildMetricHistoryQuery;
    /**
     * Extracts metrics from GraphQL response
     * @private
     */
    private extractMetricsFromResponse;
    /**
     * Extracts history data from GraphQL response
     * @private
     */
    private extractHistoryFromResponse;
    /**
     * Calculates trend from metric history values
     * @private
     */
    private static calculateTrend;
    /**
     * Handles test environment scenarios
     * @private
     */
    private static handleTestEnvironment;
    /**
     * Handles errors during metrics fetching
     * @private
     */
    private handleMetricsError;
}