/*
 * @Description:
 * @FilePath: \erp-basic-web\packages\shared\src\utils\date.ts
 * @Author: freud
 * @Date: 2023-06-06 14:37:45
 * @LastEditTime: 2023-07-04 10:35:11
 * @LastEditors: freud
 * @Reference:
 */
import dateFn, { type ConfigType } from 'dayjs';
import utc from 'dayjs/plugin/utc';

dateFn.extend(utc);
let timeZone: FormatParams['timezone'] = { offsetHours: 0, offsetMinutes: 0 };
let isInChina = false;
const getTimeZone = (timezone?: FormatParams['timezone']): Required<FormatParams['timezone']> => {
  return timezone ?? timeZone;
};
const setTimeZone = (timezone: FormatParams['timezone']) => {
  timeZone = timezone;
};
const DATE_TIME_TEMPLATE = 'YYYY-MM-DD HH:mm:ss';
const DATE_TEMPLATE = 'YYYY-MM-DD';
const DATE_ZERO_TEMPLATE = 'YYYY-MM-DD 00:00:00';

const getDateFormatTemplate = () => {
  return {
    DATE_TIME_TEMPLATE: isInChina ? 'YYYY-MM-DD HH:mm:ss' : 'MM/DD/YYYY HH:mm:ss',
    DATE_TEMPLATE: isInChina ? 'YYYY-MM-DD' : 'MM/DD/YYYY',
  };
};

const setUserCountry = (isChina: boolean) => {
  isInChina = isChina;
};
interface TimeZone {
  offsetHours: number;
  offsetMinutes: number;
}
interface FormatParams {
  date?: ConfigType;
  isSubmit?: boolean;
  timezone?: TimeZone;
  format?: typeof DATE_TEMPLATE | typeof DATE_TIME_TEMPLATE | string;
}

/**
 * @description 格式化日期时间
 * @param date 待格式化的日期时间
 * @returns 格式化后的日期字符串
 */
function formatDateTime(date?: ConfigType, isSubmit = false): string {
  const { DATE_TIME_TEMPLATE: _DATE_TIME_TEMPLATE } = getDateFormatTemplate();
  return formatDate(date, isSubmit ? DATE_TIME_TEMPLATE : _DATE_TIME_TEMPLATE, isSubmit);
}

/**
 * @description 格式化日期时间
 * @param date 待格式化的日期时间
 * @param format 格式化的方式
 * @returns 格式化后的日期字符串，默认：YYYY-MM-DD
 */
function formatDate(date?: ConfigType, format?: string, isSubmit = false): string {
  if (!date) return '';
  const { DATE_TEMPLATE: _DATE_TEMPLATE } = getDateFormatTemplate();
  format = format || (isSubmit ? DATE_TEMPLATE : _DATE_TEMPLATE);
  if (isSubmit) {
    return dateFn(date).utc().format(format);
  }
  return dateFn(date).format(format);
}

/**
 * @description 格式化UTC日期时间
 * @param date 待格式化的UTC日期时间
 * @returns 格式化后的日期字符串
 */
function formatUtcDateTime({ date, isSubmit = false, timezone }: FormatParams): string {
  const { DATE_TIME_TEMPLATE: _DATE_TIME_TEMPLATE } = getDateFormatTemplate();
  return formatUtcDate({
    date,
    format: isSubmit ? DATE_TIME_TEMPLATE : _DATE_TIME_TEMPLATE,
    isSubmit,
    timezone,
  });
}

/**
 * @description 格式化UTC日期时间
 * @param date 待格式化的UTC日期时间
 * @param format 格式化的方式
 * @returns 格式化后的日期字符串，默认：YYYY-MM-DD
 */
function formatUtcDate({ date, format, isSubmit = false, timezone }: FormatParams): string {
  if (!date) return '';
  const { DATE_TEMPLATE: _DATE_TEMPLATE } = getDateFormatTemplate();
  format = format || (isSubmit ? DATE_TEMPLATE : _DATE_TEMPLATE);
  // eslint-disable-next-line @typescript-eslint/no-non-null-assertion
  const { offsetHours, offsetMinutes } = getTimeZone(timezone)!;
  if (isSubmit) {
    return dateFn(date)
      .subtract(offsetHours * 60 + offsetMinutes, 'minute')
      .format(format);
  }
  return dateFn(date)
    .add(offsetHours * 60 + offsetMinutes, 'minute')
    .format(format);
}

const dateTransferFn = ({
  date,
  to = 'local',
  timezone,
}: {
  date: ConfigType;
  to?: 'utc' | 'local';
  timezone?: FormatParams['timezone'];
}) => {
  // eslint-disable-next-line @typescript-eslint/no-non-null-assertion
  const { offsetHours, offsetMinutes } = getTimeZone(timezone)!;
  if (to === 'utc') {
    return dateFn(date).subtract(offsetHours * 60 + offsetMinutes, 'minute');
  }
  return dateFn(date).add(offsetHours * 60 + offsetMinutes, 'minute');
};

export {
  DATE_ZERO_TEMPLATE,
  dateFn,
  dateTransferFn,
  formatDate,
  formatDateTime,
  formatUtcDate,
  formatUtcDateTime,
  setTimeZone,
  setUserCountry,
};

export type { ConfigType, FormatParams, TimeZone };