import { Constants, KnoraDate, ReadTextValueAsXml, ReadValue, ResourcePropertyDefinition } from '@dasch-swiss/dsp-js';
import { JDNConvertibleCalendar } from 'jdnconvertiblecalendar';
export declare class ValueService {
    private readonly _readTextValueAsString;
    private readonly _readTextValueAsXml;
    private readonly _readTextValueAsHtml;
    constants: typeof Constants;
    constructor();
    /**
     * Given a value, determines the type or class representing it.
     *
     * For text values, this method determines the specific class in use.
     * For all other types, the given type is returned.
     *
     * @param value the given value.
     */
    getValueTypeOrClass(value: ReadValue): string;
    /**
     * Given a ResourcePropertyDefinition of a #hasText property, determines the class representing it.
     *
     * @param resourcePropDef the given ResourcePropertyDefinition.
     */
    getTextValueClass(resourcePropDef: ResourcePropertyDefinition): string;
    /**
     * Given the ObjectType of a PropertyDefinition, compares it to the provided value type.
     * Primarily used to check if a TextValue type is equal to one of the readonly strings in this class.
     *
     * @param objectType PropertyDefinition ObjectType
     * @param valueType Value type (ReadValue, DeleteValue, BaseValue, etc.)
     */
    compareObjectTypeWithValueType(objectType: string, valueType: string): boolean;
    /**
     * Determines if a text can be edited using the text editor.
     *
     * @param textValue the text value to be checked.
     */
    isTextEditable(textValue: ReadTextValueAsXml): boolean;
    /**
     * Determines if the given value can be edited.
     *
     * @param valueTypeOrClass the type or class of the given value.
     * @param value the given value.
     * @param propertyDef the given values property definition.
     */
    isReadOnly(valueTypeOrClass: string, value: ReadValue, propertyDef: ResourcePropertyDefinition): boolean;
    /**
     * Calculates the number of days in a month for a given year.
     *
     * @param calendar the date's calendar.
     * @param year the date's year.
     * @param month the date's month.
     */
    calculateDaysInMonth(calendar: string, year: number, month: number): number;
    /**
     * Given a historical date (year), returns the astronomical year.
     *
     * @param year year of the given date.
     * @param era era of the given date.
     * @param calendar calendar of the given date.
     */
    convertHistoricalYearToAstronomicalYear(year: number, era: string, calendar: string): number;
    /**
     * Given a Knora calendar date, creates a JDN calendar date
     * taking into account precision.
     *
     * @param date the Knora calendar date.
     */
    createJDNCalendarDateFromKnoraDate(date: KnoraDate): JDNConvertibleCalendar;
}