import type { TimeUnit } from "./Time";
import { Entity, IEntitySettings, IEntityPrivate } from "./Entity";
export interface IDurationFormatterSettings extends IEntitySettings {
    /**
     * Format for every duration that is not given its own format. Overrides
     * `durationFormats`.
     */
    durationFormat?: string;
    /**
     * Values below this are negative: they use the negative part of the format
     * (after the first `|`) and get a minus sign. A value equal to it uses the
     * zero part (after the second `|`).
     *
     * @default 0
     */
    negativeBase?: number;
    /**
     * Unit of the numbers being formatted: `"millisecond"`, `"second"`,
     * `"minute"`, `"hour"`, `"day"`, `"week"`, `"month"` or `"year"`.
     *
     * @see {@link https://www.amcharts.com/docs/v5/concepts/formatters/formatting-durations/#Base_unit} for more info
     * @default "second"
     */
    baseUnit?: TimeUnit;
    /**
     * Formats picked when `durationFormat` is not set, by base unit and by the
     * largest unit the value reaches: `durationFormats[baseUnit][unit]`. Also
     * used by [[DurationAxis]].
     */
    durationFormats?: Partial<Record<TimeUnit, Partial<Record<TimeUnit, string>>>>;
    /**
     * Data fields that hold durations. Text placeholders with these fields are
     * formatted as durations even without `formatDuration()`.
     *
     * @see {@link https://www.amcharts.com/docs/v5/concepts/formatters/data-placeholders/#Formatting_placeholders} for more info
     */
    durationFields?: string[];
}
export interface IDurationFormatterPrivate extends IEntityPrivate {
}
/**
 * Formats numbers as durations, such as `125` seconds as `"02:05"`.
 *
 * @see {@link https://www.amcharts.com/docs/v5/concepts/formatters/formatting-durations/} for more info
 */
export declare class DurationFormatter extends Entity {
    _settings: IDurationFormatterSettings;
    _privateSettings: IDurationFormatterPrivate;
    static className: string;
    static classNames: Array<string>;
    protected _setDefaults(): void;
    /**
     * Collection of aliases for units.
     */
    protected _unitAliases: {
        [index: string]: string;
    };
    _beforeChanged(): void;
    /**
     * Formats a number as a duration. For example `1000` with base unit
     * `"second"` gives `"16:40"`: 16 minutes and 40 seconds.
     *
     * @param value   Value to format
     * @param format  Format to apply; `durationFormat` or a default from `durationFormats` if not given
     * @param base    Base unit of the value; `baseUnit` if not given
     * @return Formatted number
     */
    format(value: number | string, format?: string, base?: TimeUnit): string;
    /**
     * Parses supplied format into structured object which can be used to format
     * the number.
     *
     * @param format  Format string, e.g. "hh:mm:ss"
     * @param base    Override base unit
     * @return Parsed information
     */
    protected parseFormat(format: string, base?: TimeUnit): any;
    /**
     * Applies parsed format to a numeric value.
     *
     * @param value    Value
     * @param details  Parsed format as returned by {parseFormat}
     * @return Formatted duration
     */
    protected applyFormat(value: number, details: any): string;
    /**
     * Converts a value in `baseUnit` to milliseconds.
     *
     * @param value     A source value
     * @param baseUnit  Unit the value is in, such as `"second"`
     * @return Value in milliseconds
     */
    toTimeStamp(value: number, baseUnit: TimeUnit): number;
    protected _toTimeUnit(code: string): TimeUnit | undefined;
    /**
     * Returns the format for `value`: `durationFormat` if set, otherwise the
     * entry of `durationFormats` for the largest unit the value reaches.
     *
     * With `maxValue`, the unit comes from the larger of the two, so a range of
     * values shares one format. With base unit `"second"`, `10` alone gets
     * `"ss"`, but with `maxValue` `600` it gets `"mm:ss"` and shows as `00:10`.
     *
     * @param value     Value to format
     * @param maxValue  Largest value of the range, used to pick the unit
     * @param baseUnit  Base unit of the value; `baseUnit` if not given
     * @return Format
     */
    getFormat(value: number, maxValue?: number, baseUnit?: TimeUnit): string;
    /**
     * Returns the largest unit the value holds more than one of: 100 seconds
     * is `"minute"`, 59 seconds is still `"second"`.
     *
     * @param value     Source duration value
     * @param baseUnit  Base unit; `baseUnit` setting if not given
     * @return Time unit
     */
    getValueUnit(value: number, baseUnit?: TimeUnit): TimeUnit | undefined;
    /**
     * Converts a value in `baseUnit` to milliseconds.
     *
     * @param value     Source duration value
     * @param baseUnit  Base unit; `baseUnit` setting if not given
     * @return Value in milliseconds
     */
    getMilliseconds(value: number, baseUnit?: TimeUnit): number;
    protected _getUnitValue(timeUnit: TimeUnit): number;
    protected _getUnitValues(): any;
}
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