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- // @flow
-
- export type eventObject = {
- id: number,
- title: string,
- logo: string,
- date_begin: string,
- date_end: string,
- description: string,
- club: string,
- category_id: number,
- url: string,
- };
-
- // Regex used to check date string validity
- const dateRegExp = /^\d{4}-\d{2}-\d{2} \d{2}:\d{2}$/;
-
- /**
- * Gets the current day string representation in the format
- * YYYY-MM-DD
- *
- * @return {string} The string representation
- */
- export function getCurrentDateString(): string {
- return dateToString(new Date(Date.now()));
- }
-
- /**
- * Checks if the given date is before the other.
- *
- * @param event1Date Event 1 date in format YYYY-MM-DD HH:MM
- * @param event2Date Event 2 date in format YYYY-MM-DD HH:MM
- * @return {boolean}
- */
- export function isEventBefore(event1Date: string, event2Date: string): boolean {
- let date1 = stringToDate(event1Date);
- let date2 = stringToDate(event2Date);
- if (date1 !== null && date2 !== null)
- return date1 < date2;
- else
- return false;
- }
-
- /**
- * Gets only the date part of the given event date string in the format
- * YYYY-MM-DD HH:MM
- *
- * @param dateString The string to get the date from
- * @return {string|null} Date in format YYYY:MM:DD or null if given string is invalid
- */
- export function getDateOnlyString(dateString: string): string | null {
- if (isEventDateStringFormatValid(dateString))
- return dateString.split(" ")[0];
- else
- return null;
- }
-
- /**
- * Checks if the given date string is in the format
- * YYYY-MM-DD HH:MM
- *
- * @param dateString The string to check
- * @return {boolean}
- */
- export function isEventDateStringFormatValid(dateString: ?string): boolean {
- return dateString !== undefined
- && dateString !== null
- && dateRegExp.test(dateString);
- }
-
- /**
- * Converts the given date string to a date object.<br>
- * Accepted format: YYYY-MM-DD HH:MM
- *
- * @param dateString The string to convert
- * @return {Date|null} The date object or null if the given string is invalid
- */
- export function stringToDate(dateString: string): Date | null {
- let date = new Date();
- if (isEventDateStringFormatValid(dateString)) {
- let stringArray = dateString.split(' ');
- let dateArray = stringArray[0].split('-');
- let timeArray = stringArray[1].split(':');
- date.setFullYear(
- parseInt(dateArray[0]),
- parseInt(dateArray[1]) - 1, // Month range from 0 to 11
- parseInt(dateArray[2])
- );
- date.setHours(
- parseInt(timeArray[0]),
- parseInt(timeArray[1]),
- 0,
- 0,
- );
- } else
- date = null;
-
- return date;
- }
-
- /**
- * Converts a date object to a string in the format
- * YYYY-MM-DD HH-MM-SS
- *
- * @param date The date object to convert
- * @return {string} The converted string
- */
- export function dateToString(date: Date): string {
- const day = String(date.getDate()).padStart(2, '0');
- const month = String(date.getMonth() + 1).padStart(2, '0'); //January is 0!
- const year = date.getFullYear();
- const hours = String(date.getHours()).padStart(2, '0');
- const minutes = String(date.getMinutes()).padStart(2, '0');
- return year + '-' + month + '-' + day + ' ' + hours + ':' + minutes;
- }
-
- /**
- * Returns a string corresponding to the event start and end times in the following format:
- *
- * HH:MM - HH:MM
- *
- * If the end date is not specified or is equal to start time, only start time will be shown.
- *
- * If the end date is not on the same day, 23:59 will be shown as end time
- *
- * @param start Start time in YYYY-MM-DD HH:MM:SS format
- * @param end End time in YYYY-MM-DD HH:MM:SS format
- * @return {string} Formatted string or "/ - /" on error
- */
- export function getFormattedEventTime(start: string, end: string): string {
- let formattedStr = '/ - /';
- let startDate = stringToDate(start);
- let endDate = stringToDate(end);
-
- if (startDate !== null && endDate !== null && startDate.getTime() !== endDate.getTime()) {
- formattedStr = String(startDate.getHours()).padStart(2, '0') + ':'
- + String(startDate.getMinutes()).padStart(2, '0') + ' - ';
- if (endDate.getFullYear() > startDate.getFullYear()
- || endDate.getMonth() > startDate.getMonth()
- || endDate.getDate() > startDate.getDate())
- formattedStr += '23:59';
- else
- formattedStr += String(endDate.getHours()).padStart(2, '0') + ':'
- + String(endDate.getMinutes()).padStart(2, '0');
- } else if (startDate !== null)
- formattedStr =
- String(startDate.getHours()).padStart(2, '0') + ':'
- + String(startDate.getMinutes()).padStart(2, '0');
-
- return formattedStr
- }
-
- /**
- * Checks if the given description can be considered empty.
- * <br>
- * An empty description is composed only of whitespace, <b>br</b> or <b>p</b> tags
- *
- *
- * @param description The text to check
- * @return {boolean}
- */
- export function isDescriptionEmpty(description: ?string): boolean {
- if (description !== undefined && description !== null) {
- return description
- .split('<p>').join('') // Equivalent to a replace all
- .split('</p>').join('')
- .split('<br>').join('').trim() === '';
- } else
- return true;
- }
-
- /**
- * Generates an object with an empty array for each key.
- * Each key is a date string in the format
- * YYYY-MM-DD
- *
- * @param numberOfMonths The number of months to create, starting from the current date
- * @return {Object}
- */
- export function generateEmptyCalendar(numberOfMonths: number): Object {
- let end = new Date(Date.now());
- end.setMonth(end.getMonth() + numberOfMonths);
- let daysOfYear = {};
- for (let d = new Date(Date.now()); d <= end; d.setDate(d.getDate() + 1)) {
- const dateString = getDateOnlyString(
- dateToString(new Date(d)));
- if (dateString !== null)
- daysOfYear[dateString] = []
- }
- return daysOfYear;
- }
-
- /**
- * Generates an object with an array of eventObject at each key.
- * Each key is a date string in the format
- * YYYY-MM-DD.
- *
- * If no event is available at the given key, the array will be empty
- *
- * @param eventList The list of events to map to the agenda
- * @param numberOfMonths The number of months to create the agenda for
- * @return {Object}
- */
- export function generateEventAgenda(eventList: Array<eventObject>, numberOfMonths: number): Object {
- let agendaItems = generateEmptyCalendar(numberOfMonths);
- for (let i = 0; i < eventList.length; i++) {
- const dateString = getDateOnlyString(eventList[i].date_begin);
- if (dateString !== null) {
- const eventArray = agendaItems[dateString];
- if (eventArray !== undefined)
- pushEventInOrder(eventArray, eventList[i]);
- }
-
- }
- return agendaItems;
- }
-
- /**
- * Adds events to the given array depending on their starting date.
- *
- * Events starting before are added at the front.
- *
- * @param eventArray The array to hold sorted events
- * @param event The event to add to the array
- */
- export function pushEventInOrder(eventArray: Array<eventObject>, event: eventObject): Object {
- if (eventArray.length === 0)
- eventArray.push(event);
- else {
- for (let i = 0; i < eventArray.length; i++) {
- if (isEventBefore(event.date_begin, eventArray[i].date_begin)) {
- eventArray.splice(i, 0, event);
- break;
- } else if (i === eventArray.length - 1) {
- eventArray.push(event);
- break;
- }
- }
- }
- }
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