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/** |
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* WordPress dependencies |
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*/ |
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import { __ } from '@wordpress/i18n'; |
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|
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const SHORT_DATE_FORMAT: Intl.DateTimeFormatOptions = { month: 'short', day: 'numeric', year: 'numeric' }; |
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const SHORT_DATE_FORMAT_WITHOUT_YEAR: Intl.DateTimeFormatOptions = { month: 'short', day: 'numeric' }; |
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const DATE_NOT_AVAILABLE_MESSAGE = __( 'Date N/A', 'wp-parsely' ); |
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|
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/** |
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* Returns whether the passed date can be processed further. |
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* |
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* @param {Date} date The date to be examined. |
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* @return {boolean} Whether the date can be processed further. |
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*/ |
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export function canProcessDate( date: Date ): boolean { |
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// Return false if the date is not a valid Date object. |
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if ( isNaN( +date ) ) { |
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return false; |
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} |
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|
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// Return false if the date is the Unix Epoch time. |
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return 0 !== date.getTime(); |
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} |
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|
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export function getDateInUserLang( date: Date, options: Intl.DateTimeFormatOptions ): string { |
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if ( false === canProcessDate( date ) ) { |
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return DATE_NOT_AVAILABLE_MESSAGE; |
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} |
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|
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return Intl.DateTimeFormat( |
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document.documentElement.lang || 'en', |
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options |
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).format( date ); |
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} |
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|
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/** |
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* Returns the passed date in short format or in short format without year (if |
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* the passed date is within the current year), respecting the user's language. |
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* |
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* @param {Date} date The date to be formatted. |
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* @return {string} The resulting date in its final format. |
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*/ |
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export function getSmartShortDate( date: Date ): string { |
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if ( false === canProcessDate( date ) ) { |
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return DATE_NOT_AVAILABLE_MESSAGE; |
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} |
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|
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let dateFormat = SHORT_DATE_FORMAT; |
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|
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if ( date.getUTCFullYear() === new Date().getUTCFullYear() ) { |
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dateFormat = SHORT_DATE_FORMAT_WITHOUT_YEAR; |
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} |
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|
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return Intl.DateTimeFormat( |
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document.documentElement.lang || 'en', |
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dateFormat |
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).format( date ); |
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} |
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|
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/** |
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* Removes the given number of days from a "YYYY-MM-DD" string, and returns |
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* the result in the same format. |
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* |
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* @param {Date} date The date to be processed. |
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* @param {number} days The number of days to remove from the date. |
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* @return {string} The resulting date in "YYYY-MM-DD" format. |
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*/ |
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export function removeDaysFromDate( date: Date, days: number ): string { |
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if ( false === Number.isInteger( days ) ) { |
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return __( 'days parameter must be an integer', 'wp-parsely' ); |
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} |
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|
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if ( false === canProcessDate( date ) ) { |
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return DATE_NOT_AVAILABLE_MESSAGE; |
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} |
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|
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const pastDate = new Date( date ); |
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pastDate.setDate( pastDate.getDate() - days ); |
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|
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return convertDateToString( pastDate ); |
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} |
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|
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/** |
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* Converts a date to a string in "YYYY-MM-DD" format. |
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* |
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* @param {Date} date The date to format. |
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* @return {string} The date in "YYYY-MM-DD" format. |
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*/ |
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export function convertDateToString( date: Date ): string { |
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if ( false === canProcessDate( date ) ) { |
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return DATE_NOT_AVAILABLE_MESSAGE; |
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} |
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|
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return date.toISOString().substring( 0, 10 ); |
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} |
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