@zohodesk/hooks/es/calendar/useCalendar.js

Unified Component Library - Hooks

import React from 'react';
import useCommonReducer from "../utils/useCommonReducer";
import calendarReducer from "./reducers/calendarReducer";
import * as constants from "./reducers/constants";
import getMonthDates from "./utils/getMonthData";
import getCurrentValue from "./utils/getCurrentValue";
import { dateDecode, dateEncode } from "./utils/dateConverter";
/**
 * @param  {Object} props={}
 * @param  {Function} customReducer
 */

export default function useCalendar() {
  let props = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {};
  let customReducer = arguments.length > 1 ? arguments[1] : undefined;
  const {
    currentDate,
    currentMonth,
    currentYear
  } = getCurrentValue();
  let currentDateValue = dateEncode({
    date: currentDate,
    month: currentMonth + 1,
    year: currentYear
  });
  const {
    value: propsValue = currentDateValue
  } = props;
  const {
    state,
    dispatch
  } = useCommonReducer(calendarReducer, customReducer, {
    value: propsValue
  });
  let {
    value
  } = state;
  const {
    date,
    month,
    year
  } = dateDecode(value);
  const newDate = new Date(year, month - 1, date);
  const day = newDate.getDay();

  function getMonthData() {
    return getMonthDates({
      day,
      date,
      month,
      year
    });
  }

  function handlePrevMonth() {
    dispatch({
      type: constants.PREV_MONTH,
      data: value
    });
  }

  function handleNextMonth() {
    dispatch({
      type: constants.NEXT_MONTH,
      data: value
    });
  }

  function handlePrevYear() {
    dispatch({
      type: constants.PREV_YEAR,
      data: value
    });
  }

  function handleNextYear() {
    dispatch({
      type: constants.NEXT_YEAR,
      data: value
    });
  }

  function handleChange(data) {
    dispatch({
      type: constants.CHANGE,
      data: {
        date,
        month,
        year,
        ...data
      }
    });
  }

  return {
    value,
    getMonthData,
    handleChange,
    handlePrevMonth,
    handleNextMonth,
    handlePrevYear,
    handleNextYear
  };
}