/**
 *
 *  Copyright (c) "Neo4j"
 *  Neo4j Sweden AB [http://neo4j.com]
 *
 *  This file is part of Neo4j.
 *
 *  Neo4j is free software: you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License as published by
 *  the Free Software Foundation, either version 3 of the License, or
 *  (at your option) any later version.
 *
 *  This program is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *  GNU General Public License for more details.
 *
 *  You should have received a copy of the GNU General Public License
 *  along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */
import type { Condition, NeedleSeries, NotificationType, ThresholdLineSeriesOption } from './chart-types';
export type NormalizedThresholdLine = ThresholdLineSeriesOption<NotificationType> & {
    condition: NonNullable<ThresholdLineSeriesOption<NotificationType>['condition']>;
    value: number;
};
export type ThresholdConditionEvaluation = {
    isConditionMet: boolean;
    conditionText: string | undefined;
};
export declare const isThresholdLine: (name?: string) => boolean | undefined;
export declare const getThresholdLineDisplayName: (name: string) => string;
/**
 * Extracts threshold-line series and resolves defaults needed by tooltips.
 */
export declare function normalizeThresholdLines(propsSeries: NeedleSeries): NormalizedThresholdLine[];
/**
 * Evaluates a threshold condition and returns the short label used by
 * chart tooltip notifications.
 */
export declare function evaluateThresholdCondition(value: number, condition: Condition, threshold: number): ThresholdConditionEvaluation;
/**
 * Returns the longer condition phrase used in chart aria descriptions.
 */
export declare function thresholdConditionToText(condition: Condition): string;
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