import { PluginFunc, OpUnitType, ConfigType } from 'dayjs'

declare const plugin: PluginFunc
export = plugin

type ISOUnitType = OpUnitType | 'isoWeek';

declare module 'dayjs' {
  interface Dayjs {
    isoWeekYear(): number
    isoWeek(): number
    isoWeek(value: number): Dayjs

    isoWeekday(): number
    isoWeekday(value: number): Dayjs

    startOf(unit: ISOUnitType): Dayjs

    endOf(unit: ISOUnitType): Dayjs

    isSame(date: ConfigType, unit?: ISOUnitType): boolean

    isBefore(date: ConfigType, unit?: ISOUnitType): boolean

    isAfter(date: ConfigType, unit?: ISOUnitType): boolean
  }
}
