export default class PlanningEventManager { // Regex used to check date string validity static dateRegExp = /^\d{4}-\d{2}-\d{2} \d{2}:\d{2}:\d{2}$/; /** * Checks if the given date is before the other. * * @param event1Date Event 1 date in format YYYY-MM-DD HH:MM:SS * @param event2Date Event 2 date in format YYYY-MM-DD HH:MM:SS * @return {boolean} */ static isEventBefore(event1Date: ?string, event2Date: ?string) { let date1 = PlanningEventManager.stringToDate(event1Date); let date2 = PlanningEventManager.stringToDate(event2Date); if (date1 !== undefined && date2 !== undefined) 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:SS * * @param dateString The string to get the date from * @return {string|undefined} Date in format YYYY:MM:DD or undefined if given string is invalid */ static getDateOnlyString(dateString: ?string) { if (PlanningEventManager.isDateStringFormatValid(dateString)) return dateString.split(" ")[0]; else return undefined; } /** * Checks if the given date string is in the format * YYYY-MM-DD HH:MM:SS * * @param dateString The string to check * @return {boolean} */ static isDateStringFormatValid(dateString: ?string) { return dateString !== undefined && dateString !== null && PlanningEventManager.dateRegExp.test(dateString); } /** * Converts the given date string to a date object.
* Accepted format: YYYY-MM-DD HH:MM:SS * * @param dateString The string to convert * @return {Date|undefined} The date object or undefined if the given string is invalid */ static stringToDate(dateString: ?string): Date | undefined { let date = new Date(); if (PlanningEventManager.isDateStringFormatValid(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]), parseInt(timeArray[2]), 0, ); } else date = undefined; return date; } /** * Returns a padded string for the given number if it is lower than 10 * * @param i The string to be converted * @return {string} */ static toPaddedString(i: number): string { return (i < 10 && i >= 0) ? "0" + i.toString(10) : i.toString(10); } /** * 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, 00:00 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 */ static getFormattedEventTime(start: ?string, end: ?string): string { let formattedStr = '/ - /'; let startDate = PlanningEventManager.stringToDate(start); let endDate = PlanningEventManager.stringToDate(end); if (startDate !== undefined && endDate !== undefined && startDate.getTime() !== endDate.getTime()) { formattedStr = PlanningEventManager.toPaddedString(startDate.getHours()) + ':' + PlanningEventManager.toPaddedString(startDate.getMinutes()) + ' - '; if (endDate.getFullYear() > startDate.getFullYear() || endDate.getMonth() > startDate.getMonth() || endDate.getDate() > startDate.getDate()) formattedStr += '00:00'; else formattedStr += PlanningEventManager.toPaddedString(endDate.getHours()) + ':' + PlanningEventManager.toPaddedString(endDate.getMinutes()); } else if (startDate !== undefined) formattedStr = PlanningEventManager.toPaddedString(startDate.getHours()) + ':' + PlanningEventManager.toPaddedString(startDate.getMinutes()); return formattedStr } /** * Checks if the given description can be considered empty. *
* An empty description is composed only of whitespace, br or p tags * * * @param description The text to check * @return {boolean} */ static isDescriptionEmpty(description: ?string): boolean { if (description !== undefined && description !== null) { return description .split('

').join('') // Equivalent to a replace all .split('

').join('') .split('
').join('').trim() === ''; } else return true; } }