/**
 * Type definitions for natural-time-js
 */
/**
 * Interface for NaturalDate class to avoid circular dependencies
 */
export interface INaturalDate {
    /** Artificial gregorian date (UNIX timestamp) */
    unixTime: number;
    /** Longitude in degrees (-180 to 180) */
    longitude: number;
    /** Current year (year 1: 2012/2013) */
    year: number;
    /** Current moon (between 1 and 14) */
    moon: number;
    /** Current week (between 1 and 53) */
    week: number;
    /** Current week of the moon (between 1 and 4) */
    weekOfMoon: number;
    /** Number of days passed since END_OF_ARTIFICIAL_TIME */
    day: number;
    /** Current day of the year (between 1 and 366) */
    dayOfYear: number;
    /** Current day of the moon (between 1 and 28) */
    dayOfMoon: number;
    /** Current day of the week (between 1 and 7) */
    dayOfWeek: number;
    /** True if current day is rainbow day */
    isRainbowDay: boolean;
    /** Current time (between 0 and 359.999...) */
    time: number;
    /** Beginning of the year at the current longitude (UNIX timestamp) */
    yearStart: number;
    /** Numbers of days in the current year (between 365 and 366) */
    yearDuration: number;
    /** Beginning of the day at the current longitude (UNIX timestamp) */
    nadir: number;
}
/**
 * Year context for natural date calculations
 */
export interface YearContext {
    /** Start timestamp of the year */
    start: number;
    /** Duration of the year in days */
    duration: number;
}
/**
 * Sun altitude information
 */
export interface SunAltitude {
    /** Current altitude of the sun in degrees */
    altitude: number;
    /** Highest altitude the sun will reach on this day */
    highestAltitude: number;
}
/**
 * Sun events throughout the day
 */
export interface SunEvents {
    /** Time of sunrise in degrees (0-360) or false if no sunrise */
    sunrise: number | false;
    /** Time of sunset in degrees (0-360) or false if no sunset */
    sunset: number | false;
    /** Time when night starts in degrees (0-360) or false if no night start */
    nightStart: number | false;
    /** Time when night ends in degrees (0-360) or false if no night end */
    nightEnd: number | false;
    /** Time when morning golden hour starts in degrees (0-360) or false if no morning golden hour */
    morningGoldenHour: number | false;
    /** Time when evening golden hour starts in degrees (0-360) or false if no evening golden hour */
    eveningGoldenHour: number | false;
}
/**
 * Moon position information
 */
export interface MoonPosition {
    /** Moon phase in degrees (0-360) */
    phase: number;
    /** Current altitude of the moon in degrees */
    altitude: number;
    /** Highest altitude the moon will reach on this day */
    highestAltitude: number;
}
/**
 * Moon events throughout the day
 */
export interface MoonEvents {
    /** Time of moonrise in degrees (0-360) or false if no moonrise */
    moonrise: number | false;
    /** Time of moonset in degrees (0-360) or false if no moonset */
    moonset: number | false;
}
/**
 * Hemisphere identifiers
 */
export declare enum Hemisphere {
    NORTH = "NORTH",
    SOUTH = "SOUTH"
}
/**
 * Season day markers
 */
export interface Seasons {
    /** Day 91 (typically April 1st) */
    SUMMER_START_DAY: number;
    /** Day 273 (typically September 30th) */
    SUMMER_END_DAY: number;
}
/**
 * Solar altitude thresholds
 */
export interface Angles {
    /** Night altitude threshold in degrees */
    NIGHT_ALTITUDE: number;
    /** Golden hour altitude threshold in degrees */
    GOLDEN_HOUR_ALTITUDE: number;
}