react-native-calendar-box/lib/helpers/calendar.js

react-native calendar picker with box

'use strict';

exports.__esModule = true;
exports.getCalendarArray = getCalendarArray;
exports.getMonthName = getMonthName;
exports.getDayName = getDayName;
exports.setDisplayTime = setDisplayTime;
exports.displayDateTime = displayDateTime;
exports.getHoursList = getHoursList;

var _immutableDatetime = require('immutable-datetime');

var _immutableDatetime2 = _interopRequireDefault(_immutableDatetime);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

/* Calendar helpers */
var monthNames = ['January', 'February', 'March', 'April', 'May', 'June', 'July', 'August', 'September', 'October', 'November', 'December'];

var dayNames = ['Sunday', 'Monday', 'Tuesday', 'Wednesday', 'Thursday', 'Friday', 'Saturday'];


function getEmptyWeekArray() {
  var array = new Array(7);
  array.fill(null);
  return array;
}

function getCalendarArray(year, month) {
  var weeks = [];
  var firstDay = _immutableDatetime2.default.fromDateParts(year, month, 1);
  var firstDayOfNextMonth = _immutableDatetime2.default.fromDateParts(year, month + 1, 1);
  var currentWeek = getEmptyWeekArray();
  var currentWeekIsEmpty = true;
  var currentDay = firstDay;
  while (currentDay.toNumber() < firstDayOfNextMonth.toNumber()) {
    var dayOfWeek = currentDay.getDay();
    currentWeek[dayOfWeek] = currentDay;
    currentWeekIsEmpty = false;
    if (dayOfWeek === 6) {
      weeks.push(currentWeek);
      currentWeek = getEmptyWeekArray();
      currentWeekIsEmpty = true;
    }
    currentDay = currentDay.addDays(1);
  }
  if (!currentWeekIsEmpty) {
    weeks.push(currentWeek);
  }
  return weeks;
}

function getMonthName(currentMonth) {
  return monthNames[currentMonth];
}

function getDayName(dayIndex) {
  return dayNames[dayIndex];
}

function setDisplayTime(dateTime) {
  var time = dateTime;
  var minutes = time.getMinutes() < 10 ? '0' + time.getMinutes() : time.getMinutes();
  var hours = time.getHours() < 10 ? '0' + time.getHours() : time.getHours();
  return hours + '.' + minutes;
}

function displayDateTime(dateTime) {
  if (dateTime != null) {
    var month = getMonthName(dateTime.getMonth());
    var time = displayTime(dateTime);
    return month + ' ' + dateTime.getDate() + ', ' + dateTime.getYear() + ' at ' + time;
  }
  return '';
}

function displayTime(dateTime) {
  if (dateTime != null) {
    var time = dateTime;
    var minutes = time.getMinutes() < 10 ? '0' + time.getMinutes() : time.getMinutes();
    var hours = time.getHours() < 10 ? '0' + time.getHours() : time.getHours();
    return hours + ':' + minutes;
  }
  return '';
}

function getHoursList(date) {
  var hoursList = [];
  if (date != null) {
    for (var i = 7; i < 19; i += 1) {
      hoursList.push(date.addHours(i));
      hoursList.push(date.addHours(i).addMinutes(30));
    }
  }
  return hoursList;
}