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249 lines
6.6 KiB
JavaScript
249 lines
6.6 KiB
JavaScript
import I18n from "I18n";
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import DateWithZoneHelper from "./date-with-zone-helper";
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const TIME_FORMAT = "LLL";
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const DATE_FORMAT = "LL";
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const RANGE_SEPARATOR = "→";
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export default class LocalDateBuilder {
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constructor(params = {}, localTimezone) {
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this.time = params.time;
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this.date = params.date;
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this.recurring = params.recurring;
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this.timezones = Array.from(
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new Set((params.timezones || []).filter(Boolean))
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);
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this.timezone = params.timezone || "UTC";
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this.calendar =
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typeof params.calendar === "undefined" ? true : params.calendar;
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this.displayedTimezone = params.displayedTimezone;
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this.format = params.format || (this.time ? TIME_FORMAT : DATE_FORMAT);
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this.countdown = params.countdown;
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this.localTimezone = localTimezone;
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}
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build() {
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const [year, month, day] = this.date.split("-").map(x => parseInt(x, 10));
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const [hour, minute, second] = (this.time || "")
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.split(":")
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.map(x => (x ? parseInt(x, 10) : undefined));
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let displayedTimezone;
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if (this.time) {
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displayedTimezone = this.displayedTimezone || this.localTimezone;
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} else {
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displayedTimezone =
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this.displayedTimezone || this.timezone || this.localTimezone;
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}
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let localDate = new DateWithZoneHelper({
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year,
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month: month ? month - 1 : null,
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day,
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hour,
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minute,
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second,
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timezone: this.timezone,
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localTimezone: this.localTimezone
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});
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if (this.recurring) {
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const [count, type] = this.recurring.split(".");
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const repetitionsForType = localDate.repetitionsBetweenDates(
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this.recurring,
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moment.tz(this.localTimezone)
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);
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localDate = localDate.add(repetitionsForType + parseInt(count, 10), type);
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}
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const previews = this._generatePreviews(localDate, displayedTimezone);
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return {
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pastEvent:
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!this.recurring &&
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moment.tz(this.localTimezone).isAfter(localDate.datetime),
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formated: this._applyFormatting(localDate, displayedTimezone),
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previews,
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textPreview: this._generateTextPreviews(previews)
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};
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}
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_generateTextPreviews(previews) {
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return previews
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.map(preview => {
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const formatedZone = this._zoneWithoutPrefix(preview.timezone);
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return `${formatedZone} ${preview.formated}`;
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})
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.join(", ");
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}
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_generatePreviews(localDate, displayedTimezone) {
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const previewedTimezones = [];
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const timezones = this.timezones.filter(
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timezone =>
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!this._isEqualZones(timezone, this.localTimezone) &&
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!this._isEqualZones(timezone, this.timezone)
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);
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previewedTimezones.push({
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timezone: this._zoneWithoutPrefix(this.localTimezone),
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current: true,
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formated: this._createDateTimeRange(
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DateWithZoneHelper.fromDatetime(
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localDate.datetime,
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localDate.timezone,
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this.localTimezone
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),
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this.time
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)
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});
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if (
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this.timezone &&
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displayedTimezone === this.localTimezone &&
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this.timezone !== displayedTimezone &&
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!this._isEqualZones(displayedTimezone, this.timezone)
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) {
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timezones.unshift(this.timezone);
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}
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timezones.forEach(timezone => {
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if (this._isEqualZones(timezone, displayedTimezone)) {
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return;
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}
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if (this._isEqualZones(timezone, this.localTimezone)) {
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timezone = this.localTimezone;
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}
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previewedTimezones.push({
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timezone: this._zoneWithoutPrefix(timezone),
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formated: this._createDateTimeRange(
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DateWithZoneHelper.fromDatetime(
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localDate.datetime,
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localDate.timezone,
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timezone
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),
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this.time
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)
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});
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});
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return previewedTimezones.uniqBy("timezone");
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}
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_isEqualZones(timezoneA, timezoneB) {
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if ((timezoneA || timezoneB) && (!timezoneA || !timezoneB)) {
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return false;
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}
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if (timezoneA.includes(timezoneB) || timezoneB.includes(timezoneA)) {
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return true;
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}
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return (
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moment.tz(timezoneA).utcOffset() === moment.tz(timezoneB).utcOffset()
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);
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}
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_createDateTimeRange(startRange, time) {
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// if a time has been given we do not attempt to automatically create a range
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// instead we show only one date with a format showing the time
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if (time) {
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return startRange.format(TIME_FORMAT);
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} else {
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const endRange = startRange.add(24, "hours");
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return [
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startRange.format("LLLL"),
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RANGE_SEPARATOR,
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endRange.format("LLLL")
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].join(" ");
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}
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}
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_applyFormatting(localDate, displayedTimezone) {
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if (this.countdown) {
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const diffTime = moment.tz(this.localTimezone).diff(localDate.datetime);
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if (diffTime < 0) {
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return moment.duration(diffTime).humanize();
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} else {
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return I18n.t("discourse_local_dates.relative_dates.countdown.passed");
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}
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}
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const sameTimezone = this._isEqualZones(
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displayedTimezone,
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this.localTimezone
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);
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if (this.calendar) {
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const inCalendarRange = moment
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.tz(this.localTimezone)
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.isBetween(
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localDate.subtract(2, "day").datetime,
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localDate.add(1, "day").datetime.endOf("day")
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);
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if (inCalendarRange && sameTimezone) {
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return localDate
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.datetimeWithZone(this.localTimezone)
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.calendar(
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moment.tz(localDate.timezone),
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this._calendarFormats(this.time ? this.time : null)
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);
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}
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}
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if (!sameTimezone) {
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return this._formatWithZone(localDate, displayedTimezone, this.format);
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}
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return localDate.format(this.format);
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}
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_calendarFormats(time) {
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return {
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sameDay: this._translateCalendarKey(time, "today"),
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nextDay: this._translateCalendarKey(time, "tomorrow"),
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lastDay: this._translateCalendarKey(time, "yesterday"),
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sameElse: "L"
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};
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}
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_translateCalendarKey(time, key) {
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const translated = I18n.t(`discourse_local_dates.relative_dates.${key}`, {
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time: "LT"
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});
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if (time) {
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return translated
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.split("LT")
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.map(w => `[${w}]`)
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.join("LT");
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} else {
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return `[${translated.replace(" LT", "")}]`;
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}
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}
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_formatTimezone(timezone) {
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return timezone
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.replace("_", " ")
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.replace("Etc/", "")
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.split("/");
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}
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_zoneWithoutPrefix(timezone) {
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const [part1, part2] = this._formatTimezone(timezone);
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return part2 || part1;
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}
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_formatWithZone(localDate, displayedTimezone, format) {
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let formated = localDate.datetimeWithZone(displayedTimezone).format(format);
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return `${formated} (${this._zoneWithoutPrefix(displayedTimezone)})`;
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}
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}
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