application-amicale/managers/DateManager.js

61 lines
2.4 KiB
JavaScript

// @flow
import i18n from 'i18n-js';
/**
* Singleton used to manage date translations.
* Translations are hardcoded as toLocaleDateString does not work on current android JS engine
*/
export default class DateManager {
static instance: DateManager | null = null;
daysOfWeek = [];
monthsOfYear = [];
constructor() {
this.daysOfWeek.push(i18n.t("date.daysOfWeek.sunday")); // 0 represents sunday
this.daysOfWeek.push(i18n.t("date.daysOfWeek.monday"));
this.daysOfWeek.push(i18n.t("date.daysOfWeek.tuesday"));
this.daysOfWeek.push(i18n.t("date.daysOfWeek.wednesday"));
this.daysOfWeek.push(i18n.t("date.daysOfWeek.thursday"));
this.daysOfWeek.push(i18n.t("date.daysOfWeek.friday"));
this.daysOfWeek.push(i18n.t("date.daysOfWeek.saturday"));
this.monthsOfYear.push(i18n.t("date.monthsOfYear.january"));
this.monthsOfYear.push(i18n.t("date.monthsOfYear.february"));
this.monthsOfYear.push(i18n.t("date.monthsOfYear.march"));
this.monthsOfYear.push(i18n.t("date.monthsOfYear.april"));
this.monthsOfYear.push(i18n.t("date.monthsOfYear.may"));
this.monthsOfYear.push(i18n.t("date.monthsOfYear.june"));
this.monthsOfYear.push(i18n.t("date.monthsOfYear.july"));
this.monthsOfYear.push(i18n.t("date.monthsOfYear.august"));
this.monthsOfYear.push(i18n.t("date.monthsOfYear.september"));
this.monthsOfYear.push(i18n.t("date.monthsOfYear.october"));
this.monthsOfYear.push(i18n.t("date.monthsOfYear.november"));
this.monthsOfYear.push(i18n.t("date.monthsOfYear.december"));
}
/**
* Get this class instance or create one if none is found
* @returns {DateManager}
*/
static getInstance(): DateManager {
return DateManager.instance === null ?
DateManager.instance = new DateManager() :
DateManager.instance;
}
/**
* Gets a translated string representing the given date.
*
* @param dateString The date with the format YYYY-MM-DD
* @return {string} The translated string
*/
getTranslatedDate(dateString: string) {
let dateArray = dateString.split('-');
let date = new Date();
date.setFullYear(parseInt(dateArray[0]), parseInt(dateArray[1]) - 1, parseInt(dateArray[2]));
return this.daysOfWeek[date.getDay()] + " " + date.getDate() + " " + this.monthsOfYear[date.getMonth()] + " " + date.getFullYear();
}
}