@c8y/ngx-components
Version:
Angular modules for Cumulocity IoT applications
258 lines • 39.9 kB
JavaScript
import { Pipe } from '@angular/core';
import { TranslateService } from '@ngx-translate/core';
import { gettext } from '../i18n/gettext';
import * as i0 from "@angular/core";
import * as i1 from "@ngx-translate/core";
export const NULL_VALUE_PLACEHOLDER = '--';
export class RelativeTimePipe {
constructor(translateService) {
this.translateService = translateService;
}
/**
* Transforms the given input into a formatted time difference string.
*
* This method calculates the time difference between the current date and the input.
* If the input is a `Date` object, the difference in milliseconds is calculated from the current date.
* If the input is a number, it is treated as the difference in milliseconds.
*
* The method returns a string representing the time difference, optionally prefixed with
* "in " for future dates or suffixed with " ago" for past dates, based on the `noPrefixOrSuffix` flag.
*
* @param input - The date or the time difference in milliseconds to be transformed.
* A positive number indicates a future time relative to now, and a negative number indicates a past time.
* @param noPrefixOrSuffix - If `true`, the output will not include "in" or "ago" prefixes/suffixes.
* If `false`, the output will include these based on whether the time is in the future or past.
* @returns The formatted and translated time difference string.
*/
transform(input, noPrefixOrSuffix = false) {
if (input == null) {
return NULL_VALUE_PLACEHOLDER;
}
let differenceMs;
if (input instanceof Date) {
const now = new Date();
differenceMs = input.getTime() - now.getTime();
}
else {
differenceMs = input;
}
return this.getHumanReadableTimeDiffString(differenceMs, noPrefixOrSuffix);
}
/**
* Calculates a human-readable representation of a time difference.
*
* Time ranges are same as moment.js timeFromNow function counterpart:
* https://momentjscom.readthedocs.io/en/latest/moment/04-displaying/02-fromnow/
*
* @param differenceMs - The time difference in milliseconds.
* A positive number indicates a future time relative to now, and a negative number indicates a past time.
* @param noPrefixOrSuffix - If `true`, the output will not include "in" or "ago" prefixes/suffixes.
* If `false`, the output will include these based on whether the time is in the future or past.
* @returns A string representing the time difference in a human-readable format.
* The format depends on the duration of the difference:
* - Less than 45 seconds: returns 'a few seconds'
* - 45 to 89 seconds: returns 'a minute'
* - 90 seconds to 44 minutes: returns the number of minutes
* - 45 to 89 minutes: returns 'an hour'
* - 90 minutes to 21 hours: returns the number of hours
* - 22 to 35 hours: returns 'a day'
* - 36 hours to 25 days: returns the number of days
* - 26 to 45 days: returns 'a month'
* - 45 to 319 days: returns the number of months
* - 320 days to 1.5 years: returns 'a year'
* - More than 1.5 years: returns the number of years
*/
getHumanReadableTimeDiffString(differenceMs, noPrefixOrSuffix) {
if (differenceMs == null) {
return NULL_VALUE_PLACEHOLDER;
}
const isInFuture = differenceMs > 0;
differenceMs = Math.abs(differenceMs);
const conditions = [
this.withinFewSeconds.bind(this),
this.withinMinute.bind(this),
this.withinMinutes.bind(this),
this.withinHour.bind(this),
this.withinHours.bind(this),
this.withinDay.bind(this),
this.withinDays.bind(this),
this.withinMonth.bind(this),
this.withinMonths.bind(this),
this.withinYear.bind(this),
this.withinYears.bind(this)
];
for (const condition of conditions) {
const result = condition(differenceMs, noPrefixOrSuffix, isInFuture);
if (result !== null) {
return result;
}
}
}
withinFewSeconds(differenceMs, noPrefixOrSuffix, isInFuture) {
const differenceInSeconds = differenceMs / 1000;
if (differenceInSeconds < 45) {
if (noPrefixOrSuffix) {
return this.translateService.instant(gettext('a few seconds'));
}
return isInFuture
? this.translateService.instant(gettext('in a few seconds'))
: this.translateService.instant(gettext('a few seconds ago'));
}
return null;
}
withinMinute(differenceMs, noPrefixOrSuffix, isInFuture) {
const differenceInSeconds = differenceMs / 1000;
if (differenceInSeconds < 90) {
if (noPrefixOrSuffix) {
return this.translateService.instant(gettext('a minute'));
}
return isInFuture
? this.translateService.instant(gettext('in a minute'))
: this.translateService.instant(gettext('a minute ago'));
}
return null;
}
withinMinutes(differenceMs, noPrefixOrSuffix, isInFuture) {
const differenceInSeconds = differenceMs / 1000;
const differenceInMinutes = differenceInSeconds / 60;
if (differenceInMinutes < 45) {
const params = { count: Math.round(differenceInMinutes) };
if (noPrefixOrSuffix) {
return this.translateService.instant(gettext('{{ count }} minutes'), params);
}
return isInFuture
? this.translateService.instant(gettext('in {{ count }} minutes'), params)
: this.translateService.instant(gettext('{{ count }} minutes ago'), params);
}
return null;
}
withinHour(differenceMs, noPrefixOrSuffix, isInFuture) {
const differenceInSeconds = differenceMs / 1000;
const differenceInMinutes = differenceInSeconds / 60;
if (differenceInMinutes < 90) {
if (noPrefixOrSuffix) {
return this.translateService.instant(gettext('an hour'));
}
return isInFuture
? this.translateService.instant(gettext('in an hour'))
: this.translateService.instant(gettext('an hour ago'));
}
return null;
}
withinHours(differenceMs, noPrefixOrSuffix, isInFuture) {
const differenceInSeconds = differenceMs / 1000;
const differenceInMinutes = differenceInSeconds / 60;
const differenceInHours = differenceInMinutes / 60;
if (differenceInHours < 22) {
const params = { count: Math.round(differenceInHours) };
if (noPrefixOrSuffix) {
return this.translateService.instant(gettext('{{ count }} hours'), params);
}
return isInFuture
? this.translateService.instant(gettext('in {{ count }} hours'), params)
: this.translateService.instant(gettext('{{ count }} hours ago'), params);
}
return null;
}
withinDay(differenceMs, noPrefixOrSuffix, isInFuture) {
const differenceInSeconds = differenceMs / 1000;
const differenceInMinutes = differenceInSeconds / 60;
const differenceInHours = differenceInMinutes / 60;
if (differenceInHours < 36) {
if (noPrefixOrSuffix) {
return this.translateService.instant(gettext('a day'));
}
return isInFuture
? this.translateService.instant(gettext('in a day'))
: this.translateService.instant(gettext('a day ago'));
}
return null;
}
withinDays(differenceMs, noPrefixOrSuffix, isInFuture) {
const differenceInSeconds = differenceMs / 1000;
const differenceInMinutes = differenceInSeconds / 60;
const differenceInHours = differenceInMinutes / 60;
const differenceInDays = differenceInHours / 24;
if (differenceInDays < 26) {
const params = { count: Math.round(differenceInDays) };
if (noPrefixOrSuffix) {
return this.translateService.instant(gettext('{{ count }} days'), params);
}
return isInFuture
? this.translateService.instant(gettext('in {{ count }} days'), params)
: this.translateService.instant(gettext('{{ count }} days ago'), params);
}
return null;
}
withinMonth(differenceMs, noPrefixOrSuffix, isInFuture) {
const differenceInSeconds = differenceMs / 1000;
const differenceInMinutes = differenceInSeconds / 60;
const differenceInHours = differenceInMinutes / 60;
const differenceInDays = differenceInHours / 24;
if (differenceInDays < 45) {
if (noPrefixOrSuffix) {
return this.translateService.instant(gettext('a month'));
}
return isInFuture
? this.translateService.instant(gettext('in a month'))
: this.translateService.instant(gettext('a month ago'));
}
return null;
}
withinMonths(differenceMs, noPrefixOrSuffix, isInFuture) {
const differenceInSeconds = differenceMs / 1000;
const differenceInMinutes = differenceInSeconds / 60;
const differenceInHours = differenceInMinutes / 60;
const differenceInDays = differenceInHours / 24;
if (differenceInDays < 320) {
const params = { count: Math.round(differenceInDays / 30) };
if (noPrefixOrSuffix) {
return this.translateService.instant(gettext('{{ count }} months'), params);
}
return isInFuture
? this.translateService.instant(gettext('in {{ count }} months'), params)
: this.translateService.instant(gettext('{{ count }} months ago'), params);
}
return null;
}
withinYear(differenceMs, noPrefixOrSuffix, isInFuture) {
const differenceInSeconds = differenceMs / 1000;
const differenceInMinutes = differenceInSeconds / 60;
const differenceInHours = differenceInMinutes / 60;
const differenceInDays = differenceInHours / 24;
const differenceInYears = differenceInDays / 365;
if (differenceInYears < 1.5) {
if (noPrefixOrSuffix) {
return this.translateService.instant(gettext('a year'));
}
return isInFuture
? this.translateService.instant(gettext('in a year'))
: this.translateService.instant(gettext('a year ago'));
}
return null;
}
withinYears(differenceMs, noPrefixOrSuffix, isInFuture) {
const differenceInSeconds = differenceMs / 1000;
const differenceInMinutes = differenceInSeconds / 60;
const differenceInHours = differenceInMinutes / 60;
const differenceInDays = differenceInHours / 24;
const differenceInYears = differenceInDays / 365;
const params = { count: Math.round(differenceInYears) };
if (noPrefixOrSuffix) {
return this.translateService.instant(gettext('{{ count }} years'), params);
}
return isInFuture
? this.translateService.instant(gettext('in {{ count }} years'), params)
: this.translateService.instant(gettext('{{ count }} years ago'), params);
}
static { this.ɵfac = i0.ɵɵngDeclareFactory({ minVersion: "12.0.0", version: "18.2.13", ngImport: i0, type: RelativeTimePipe, deps: [{ token: i1.TranslateService }], target: i0.ɵɵFactoryTarget.Pipe }); }
static { this.ɵpipe = i0.ɵɵngDeclarePipe({ minVersion: "14.0.0", version: "18.2.13", ngImport: i0, type: RelativeTimePipe, isStandalone: true, name: "relativeTime" }); }
}
i0.ɵɵngDeclareClassMetadata({ minVersion: "12.0.0", version: "18.2.13", ngImport: i0, type: RelativeTimePipe, decorators: [{
type: Pipe,
args: [{
name: 'relativeTime',
standalone: true
}]
}], ctorParameters: () => [{ type: i1.TranslateService }] });
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{ Pipe, PipeTransform } from '@angular/core';\nimport { TranslateService } from '@ngx-translate/core';\nimport { gettext } from '../i18n/gettext';\n\nexport const NULL_VALUE_PLACEHOLDER = '--';\n\n@Pipe({\n  name: 'relativeTime',\n  standalone: true\n})\nexport class RelativeTimePipe implements PipeTransform {\n  constructor(private translateService: TranslateService) {}\n\n  /**\n   * Transforms the given input into a formatted time difference string.\n   *\n   * This method calculates the time difference between the current date and the input.\n   * If the input is a `Date` object, the difference in milliseconds is calculated from the current date.\n   * If the input is a number, it is treated as the difference in milliseconds.\n   *\n   * The method returns a string representing the time difference, optionally prefixed with\n   * \"in \" for future dates or suffixed with \" ago\" for past dates, based on the `noPrefixOrSuffix` flag.\n   *\n   * @param input - The date or the time difference in milliseconds to be transformed.\n   *                A positive number indicates a future time relative to now, and a negative number indicates a past time.\n   * @param noPrefixOrSuffix - If `true`, the output will not include \"in\" or \"ago\" prefixes/suffixes.\n   *                         If `false`, the output will include these based on whether the time is in the future or past.\n   * @returns The formatted and translated time difference string.\n   */\n  transform(input: Date | number, noPrefixOrSuffix = false): string {\n    if (input == null) {\n      return NULL_VALUE_PLACEHOLDER;\n    }\n\n    let differenceMs: number;\n\n    if (input instanceof Date) {\n      const now = new Date();\n      differenceMs = input.getTime() - now.getTime();\n    } else {\n      differenceMs = input;\n    }\n\n    return this.getHumanReadableTimeDiffString(differenceMs, noPrefixOrSuffix);\n  }\n\n  /**\n   * Calculates a human-readable representation of a time difference.\n   *\n   * Time ranges are same as moment.js timeFromNow function counterpart:\n   * https://momentjscom.readthedocs.io/en/latest/moment/04-displaying/02-fromnow/\n   *\n   * @param differenceMs - The time difference in milliseconds.\n   *                       A positive number indicates a future time relative to now, and a negative number indicates a past time.\n   * @param noPrefixOrSuffix - If `true`, the output will not include \"in\" or \"ago\" prefixes/suffixes.\n   *                         If `false`, the output will include these based on whether the time is in the future or past.\n   * @returns A string representing the time difference in a human-readable format.\n   *                    The format depends on the duration of the difference:\n   *                    - Less than 45 seconds: returns 'a few seconds'\n   *                    - 45 to 89 seconds: returns 'a minute'\n   *                    - 90 seconds to 44 minutes: returns the number of minutes\n   *                    - 45 to 89 minutes: returns 'an hour'\n   *                    - 90 minutes to 21 hours: returns the number of hours\n   *                    - 22 to 35 hours: returns 'a day'\n   *                    - 36 hours to 25 days: returns the number of days\n   *                    - 26 to 45 days: returns 'a month'\n   *                    - 45 to 319 days: returns the number of months\n   *                    - 320 days to 1.5 years: returns 'a year'\n   *                    - More than 1.5 years: returns the number of years\n   */\n  getHumanReadableTimeDiffString(differenceMs: number, noPrefixOrSuffix: boolean): string {\n    if (differenceMs == null) {\n      return NULL_VALUE_PLACEHOLDER;\n    }\n\n    const isInFuture = differenceMs > 0;\n\n    differenceMs = Math.abs(differenceMs);\n\n    const conditions = [\n      this.withinFewSeconds.bind(this),\n      this.withinMinute.bind(this),\n      this.withinMinutes.bind(this),\n      this.withinHour.bind(this),\n      this.withinHours.bind(this),\n      this.withinDay.bind(this),\n      this.withinDays.bind(this),\n      this.withinMonth.bind(this),\n      this.withinMonths.bind(this),\n      this.withinYear.bind(this),\n      this.withinYears.bind(this)\n    ];\n\n    for (const condition of conditions) {\n      const result = condition(differenceMs, noPrefixOrSuffix, isInFuture);\n      if (result !== null) {\n        return result;\n      }\n    }\n  }\n\n  private withinFewSeconds(\n    differenceMs: number,\n    noPrefixOrSuffix: boolean,\n    isInFuture: boolean\n  ): string | null {\n    const differenceInSeconds = differenceMs / 1000;\n    if (differenceInSeconds < 45) {\n      if (noPrefixOrSuffix) {\n        return this.translateService.instant(gettext('a few seconds'));\n      }\n      return isInFuture\n        ? this.translateService.instant(gettext('in a few seconds'))\n        : this.translateService.instant(gettext('a few seconds ago'));\n    }\n    return null;\n  }\n\n  private withinMinute(\n    differenceMs: number,\n    noPrefixOrSuffix: boolean,\n    isInFuture: boolean\n  ): string | null {\n    const differenceInSeconds = differenceMs / 1000;\n    if (differenceInSeconds < 90) {\n      if (noPrefixOrSuffix) {\n        return this.translateService.instant(gettext('a minute'));\n      }\n      return isInFuture\n        ? this.translateService.instant(gettext('in a minute'))\n        : this.translateService.instant(gettext('a minute ago'));\n    }\n    return null;\n  }\n\n  private withinMinutes(\n    differenceMs: number,\n    noPrefixOrSuffix: boolean,\n    isInFuture: boolean\n  ): string | null {\n    const differenceInSeconds = differenceMs / 1000;\n    const differenceInMinutes = differenceInSeconds / 60;\n\n    if (differenceInMinutes < 45) {\n      const params = { count: Math.round(differenceInMinutes) };\n\n      if (noPrefixOrSuffix) {\n        return this.translateService.instant(gettext('{{ count }} minutes'), params);\n      }\n      return isInFuture\n        ? this.translateService.instant(gettext('in {{ count }} minutes'), params)\n        : this.translateService.instant(gettext('{{ count }} minutes ago'), params);\n    }\n    return null;\n  }\n\n  private withinHour(\n    differenceMs: number,\n    noPrefixOrSuffix: boolean,\n    isInFuture: boolean\n  ): string | null {\n    const differenceInSeconds = differenceMs / 1000;\n    const differenceInMinutes = differenceInSeconds / 60;\n\n    if (differenceInMinutes < 90) {\n      if (noPrefixOrSuffix) {\n        return this.translateService.instant(gettext('an hour'));\n      }\n      return isInFuture\n        ? this.translateService.instant(gettext('in an hour'))\n        : this.translateService.instant(gettext('an hour ago'));\n    }\n    return null;\n  }\n\n  private withinHours(\n    differenceMs: number,\n    noPrefixOrSuffix: boolean,\n    isInFuture: boolean\n  ): string | null {\n    const differenceInSeconds = differenceMs / 1000;\n    const differenceInMinutes = differenceInSeconds / 60;\n    const differenceInHours = differenceInMinutes / 60;\n\n    if (differenceInHours < 22) {\n      const params = { count: Math.round(differenceInHours) };\n\n      if (noPrefixOrSuffix) {\n        return this.translateService.instant(gettext('{{ count }} hours'), params);\n      }\n      return isInFuture\n        ? this.translateService.instant(gettext('in {{ count }} hours'), params)\n        : this.translateService.instant(gettext('{{ count }} hours ago'), params);\n    }\n    return null;\n  }\n\n  private withinDay(\n    differenceMs: number,\n    noPrefixOrSuffix: boolean,\n    isInFuture: boolean\n  ): string | null {\n    const differenceInSeconds = differenceMs / 1000;\n    const differenceInMinutes = differenceInSeconds / 60;\n    const differenceInHours = differenceInMinutes / 60;\n\n    if (differenceInHours < 36) {\n      if (noPrefixOrSuffix) {\n        return this.translateService.instant(gettext('a day'));\n      }\n      return isInFuture\n        ? this.translateService.instant(gettext('in a day'))\n        : this.translateService.instant(gettext('a day ago'));\n    }\n    return null;\n  }\n\n  private withinDays(\n    differenceMs: number,\n    noPrefixOrSuffix: boolean,\n    isInFuture: boolean\n  ): string | null {\n    const differenceInSeconds = differenceMs / 1000;\n    const differenceInMinutes = differenceInSeconds / 60;\n    const differenceInHours = differenceInMinutes / 60;\n    const differenceInDays = differenceInHours / 24;\n\n    if (differenceInDays < 26) {\n      const params = { count: Math.round(differenceInDays) };\n      if (noPrefixOrSuffix) {\n        return this.translateService.instant(gettext('{{ count }} days'), params);\n      }\n      return isInFuture\n        ? this.translateService.instant(gettext('in {{ count }} days'), params)\n        : this.translateService.instant(gettext('{{ count }} days ago'), params);\n    }\n    return null;\n  }\n\n  private withinMonth(\n    differenceMs: number,\n    noPrefixOrSuffix: boolean,\n    isInFuture: boolean\n  ): string | null {\n    const differenceInSeconds = differenceMs / 1000;\n    const differenceInMinutes = differenceInSeconds / 60;\n    const differenceInHours = differenceInMinutes / 60;\n    const differenceInDays = differenceInHours / 24;\n\n    if (differenceInDays < 45) {\n      if (noPrefixOrSuffix) {\n        return this.translateService.instant(gettext('a month'));\n      }\n      return isInFuture\n        ? this.translateService.instant(gettext('in a month'))\n        : this.translateService.instant(gettext('a month ago'));\n    }\n    return null;\n  }\n\n  private withinMonths(\n    differenceMs: number,\n    noPrefixOrSuffix: boolean,\n    isInFuture: boolean\n  ): string | null {\n    const differenceInSeconds = differenceMs / 1000;\n    const differenceInMinutes = differenceInSeconds / 60;\n    const differenceInHours = differenceInMinutes / 60;\n    const differenceInDays = differenceInHours / 24;\n\n    if (differenceInDays < 320) {\n      const params = { count: Math.round(differenceInDays / 30) };\n\n      if (noPrefixOrSuffix) {\n        return this.translateService.instant(gettext('{{ count }} months'), params);\n      }\n      return isInFuture\n        ? this.translateService.instant(gettext('in {{ count }} months'), params)\n        : this.translateService.instant(gettext('{{ count }} months ago'), params);\n    }\n    return null;\n  }\n\n  private withinYear(\n    differenceMs: number,\n    noPrefixOrSuffix: boolean,\n    isInFuture: boolean\n  ): string | null {\n    const differenceInSeconds = differenceMs / 1000;\n    const differenceInMinutes = differenceInSeconds / 60;\n    const differenceInHours = differenceInMinutes / 60;\n    const differenceInDays = differenceInHours / 24;\n    const differenceInYears = differenceInDays / 365;\n\n    if (differenceInYears < 1.5) {\n      if (noPrefixOrSuffix) {\n        return this.translateService.instant(gettext('a year'));\n      }\n      return isInFuture\n        ? this.translateService.instant(gettext('in a year'))\n        : this.translateService.instant(gettext('a year ago'));\n    }\n    return null;\n  }\n\n  private withinYears(\n    differenceMs: number,\n    noPrefixOrSuffix: boolean,\n    isInFuture: boolean\n  ): string | null {\n    const differenceInSeconds = differenceMs / 1000;\n    const differenceInMinutes = differenceInSeconds / 60;\n    const differenceInHours = differenceInMinutes / 60;\n    const differenceInDays = differenceInHours / 24;\n    const differenceInYears = differenceInDays / 365;\n\n    const params = { count: Math.round(differenceInYears) };\n\n    if (noPrefixOrSuffix) {\n      return this.translateService.instant(gettext('{{ count }} years'), params);\n    }\n    return isInFuture\n      ? this.translateService.instant(gettext('in {{ count }} years'), params)\n      : this.translateService.instant(gettext('{{ count }} years ago'), params);\n  }\n}\n"]}