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Fixcaldates2 fix calendar module date processing, using node-ical@0.20.1 (#3587)
here is an updated test version of the fixes for all kinds of calendar date problems. NOTE: the changed branch name NOTE: this used the node-cal@0.19.0 library UNCHANGED best to make a new folder and git clone there git clone https://github.com/sdetweil/MagicMirror cd MagicMirror git checkout fixcaldates2 // <------ note this is a changed branch name npm run install-mm copy your config.js and custom.css from the prior folder and the non-default modules you have installed… this ONLY changes the default calendar but DOES ship an updated node-ical library too if you need to fall back, just rename the folders around again so that your original is called MagicMirror all the testcases for node-ical and MagicMirror execute successfully. the ‘BIG’ change here is to get the local NON-TZ dates for the rrule.between() all the checking and conversion code is commented out or not used the node-ical fixes are for excluded dates (exdate) values being adjusted for DST/STD time… waiting to submit that PR one fix in calendar.js for checking if a past date was too far back, but it never checked to see IF the event date was in the past… (before today) so it chopped off too many and one change in calendarfetcher.js to put out a better diagnostic message of the parsed data… (exdate was excluded cause JSON stringify couldn’t convert the complex structure) I added the tests you all have documented please re-pull and checkout the new branch (I deleted the old branch) and npm run install-mm again --------- Co-authored-by: Veeck <github@veeck.de>
This commit is contained in:
sam detweiler
GitHub
@@ -160,7 +160,7 @@ const CalendarFetcherUtils = {
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}
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if (event.type === "VEVENT") {
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Log.debug(`Event:\n${JSON.stringify(event)}`);
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Log.debug(`Event:\n${JSON.stringify(event, null, 2)}`);
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let startMoment = eventDate(event, "start");
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let endMoment;
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@@ -246,6 +246,8 @@ const CalendarFetcherUtils = {
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const location = event.location || false;
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const geo = event.geo || false;
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const description = event.description || false;
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let d1;
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let d2;
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if (event.rrule && typeof event.rrule !== "undefined" && !isFacebookBirthday) {
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const rule = event.rrule;
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@@ -261,9 +263,10 @@ const CalendarFetcherUtils = {
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// For recurring events, get the set of start dates that fall within the range
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// of dates we're looking for.
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// kblankenship1989 - to fix issue #1798, converting all dates to locale time first, then converting back to UTC time
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let pastLocal;
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let futureLocal;
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if (CalendarFetcherUtils.isFullDayEvent(event)) {
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Log.debug("fullday");
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// if full day event, only use the date part of the ranges
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@@ -283,52 +286,52 @@ const CalendarFetcherUtils = {
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}
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futureLocal = futureMoment.toDate(); // future
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}
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Log.debug(`Search for recurring events between: ${pastLocal} and ${futureLocal}`);
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const hasByWeekdayRule = rule.options.byweekday !== undefined && rule.options.byweekday !== null;
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const oneDayInMs = 24 * 60 * 60 * 1000;
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d1 = new Date(new Date(pastLocal.valueOf() - oneDayInMs).getTime());
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d2 = new Date(new Date(futureLocal.valueOf() + oneDayInMs).getTime());
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Log.debug(`Search for recurring events between: ${d1} and ${d2}`);
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event.start = rule.options.dtstart;
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Log.debug("fix rrule start=", rule.options.dtstart);
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Log.debug("event before rrule.between=", JSON.stringify(event, null, 2), "exdates=", event.exdate);
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// fixup the exdate and recurrence date to local time too for post between() handling
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CalendarFetcherUtils.fixEventtoLocal(event);
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Log.debug(`RRule: ${rule.toString()}`);
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rule.options.tzid = null; // RRule gets *very* confused with timezones
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let dates = rule.between(new Date(pastLocal.valueOf() - oneDayInMs), new Date(futureLocal.valueOf() + oneDayInMs), true, () => { return true; });
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Log.debug(`Title: ${event.summary}, with dates: ${JSON.stringify(dates)}`);
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let dates = rule.between(d1, d2, true, () => { return true; });
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Log.debug(`Title: ${event.summary}, with dates: \n\n${JSON.stringify(dates)}\n`);
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// shouldn't need this anymore, as RRULE not passed junk
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dates = dates.filter((d) => {
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if (JSON.stringify(d) === "null") return false;
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else return true;
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});
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// RRule can generate dates with an incorrect recurrence date. Process the array here and apply date correction.
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if (hasByWeekdayRule) {
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Log.debug("Rule has byweekday, checking for correction");
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dates.forEach((date, index, arr) => {
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// NOTE: getTimezoneOffset() is negative of the expected value. For America/Los_Angeles under DST (GMT-7),
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// this value is +420. For Australia/Sydney under DST (GMT+11), this value is -660.
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const tzOffset = date.getTimezoneOffset() / 60;
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const hour = date.getHours();
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if ((tzOffset < 0) && (hour < -tzOffset)) { // east of GMT
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Log.debug(`East of GMT (tzOffset: ${tzOffset}) and hour=${hour} < ${-tzOffset}, Subtracting 1 day from ${date}`);
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arr[index] = new Date(date.valueOf() - oneDayInMs);
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} else if ((tzOffset > 0) && (hour >= (24 - tzOffset))) { // west of GMT
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Log.debug(`West of GMT (tzOffset: ${tzOffset}) and hour=${hour} >= 24-${tzOffset}, Adding 1 day to ${date}`);
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arr[index] = new Date(date.valueOf() + oneDayInMs);
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}
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});
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// Adjusting the dates could push it beyond the 'until' date, so filter those out here.
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if (rule.options.until !== null) {
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dates = dates.filter((date) => {
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return date.valueOf() <= rule.options.until.valueOf();
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});
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}
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}
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// The dates array from rrule can be confused by DST. If the event was created during DST and we
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// are querying a date range during non-DST, rrule can have the incorrect time for the date range.
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// Reprocess the array here computing and applying the time offset.
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dates.forEach((date, index, arr) => {
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let adjustHours = CalendarFetcherUtils.calculateTimezoneAdjustment(event, date);
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if (adjustHours !== 0) {
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Log.debug(`Applying timezone adjustment hours=${adjustHours} to ${date}`);
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arr[index] = new Date(date.valueOf() + (adjustHours * 60 * 60 * 1000));
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}
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// go thru all the rrule.between() dates and put back the tz offset removed so rrule.between would work
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let datesLocal = [];
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let offset = d1.getTimezoneOffset();
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Log.debug("offset =", offset);
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dates.forEach((d) => {
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let dtext = d.toISOString().slice(0, -5);
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Log.debug(" date text form without tz=", dtext);
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let dLocal = new Date(d.valueOf() + (offset * 60000));
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let offset2 = dLocal.getTimezoneOffset();
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Log.debug("date after offset applied=", dLocal);
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if (offset !== offset2) {
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// woops, dst/std switch
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let delta = offset - offset2;
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Log.debug("offset delta=", delta);
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dLocal = new Date(d.valueOf() + ((offset - delta) * 60000));
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Log.debug("corrected normalized date=", dLocal);
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} else Log.debug(" neutralized date=", dLocal);
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datesLocal.push(dLocal);
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});
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dates = datesLocal;
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// The "dates" array contains the set of dates within our desired date range range that are valid
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// for the recurrence rule. *However*, it's possible for us to have a specific recurrence that
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@@ -337,29 +340,22 @@ const CalendarFetcherUtils = {
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// because the logic below will filter out any recurrences that don't actually belong within
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// our display range.
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// Would be great if there was a better way to handle this.
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Log.debug(`event.recurrences: ${event.recurrences}`);
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//
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// i don't think we will ever see this anymore (oct 2024) due to code fixes for rrule.between()
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//
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Log.debug("event.recurrences:", event.recurrences);
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if (event.recurrences !== undefined) {
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for (let dateKey in event.recurrences) {
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// Only add dates that weren't already in the range we added from the rrule so that
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// we don't double-add those events.
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let d = new Date(dateKey);
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if (!moment(d).isBetween(pastMoment, futureMoment)) {
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if (!moment(d).isBetween(d1, d2)) {
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Log.debug("adding recurring event not found in between list =", d, " should not happen now using local dates oct 17,24");
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dates.push(d);
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}
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}
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}
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// Lastly, sometimes rrule doesn't include the event.start even if it is in the requested range. Ensure
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// inclusion here. Unfortunately dates.includes() doesn't find it so we have to do forEach().
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{
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let found = false;
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dates.forEach((d) => { if (d.valueOf() === event.start.valueOf()) found = true; });
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if (!found) {
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Log.debug(`event.start=${event.start} was not included in results from rrule; adding`);
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dates.splice(0, 0, event.start);
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}
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}
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// Loop through the set of date entries to see which recurrences should be added to our event list.
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for (let d in dates) {
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let date = dates[d];
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@@ -367,30 +363,42 @@ const CalendarFetcherUtils = {
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let curDurationMs = durationMs;
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let showRecurrence = true;
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startMoment = moment(date);
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let startMoment = moment(date);
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// Remove the time information of each date by using its substring, using the following method:
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// .toISOString().substring(0,10).
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// since the date is given as ISOString with YYYY-MM-DDTHH:MM:SS.SSSZ
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// (see https://momentjs.com/docs/#/displaying/as-iso-string/).
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// This must be done after `date` is adjusted
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const dateKey = date.toISOString().substring(0, 10);
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let dateKey = CalendarFetcherUtils.getDateKeyFromDate(date);
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Log.debug("event date dateKey=", dateKey);
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// For each date that we're checking, it's possible that there is a recurrence override for that one day.
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if (curEvent.recurrences !== undefined && curEvent.recurrences[dateKey] !== undefined) {
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// We found an override, so for this recurrence, use a potentially different title, start date, and duration.
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curEvent = curEvent.recurrences[dateKey];
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startMoment = moment(curEvent.start);
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curDurationMs = curEvent.end.valueOf() - startMoment.valueOf();
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if (curEvent.recurrences !== undefined) {
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Log.debug("have recurrences=", curEvent.recurrences);
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if (curEvent.recurrences[dateKey] !== undefined) {
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Log.debug("have a recurrence match for dateKey=", dateKey);
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// We found an override, so for this recurrence, use a potentially different title, start date, and duration.
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curEvent = curEvent.recurrences[dateKey];
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curEvent.start = new Date(new Date(curEvent.start.valueOf()).getTime());
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curEvent.end = new Date(new Date(curEvent.end.valueOf()).getTime());
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startMoment = CalendarFetcherUtils.getAdjustedStartMoment(curEvent.start, event);
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endMoment = CalendarFetcherUtils.getAdjustedStartMoment(curEvent.end, event);
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date = curEvent.start;
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curDurationMs = new Date(endMoment).valueOf() - startMoment.valueOf();
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} else {
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Log.debug("recurrence key ", dateKey, " doesn't match");
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}
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}
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// If there's no recurrence override, check for an exception date. Exception dates represent exceptions to the rule.
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else if (curEvent.exdate !== undefined && curEvent.exdate[dateKey] !== undefined) {
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// This date is an exception date, which means we should skip it in the recurrence pattern.
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showRecurrence = false;
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if (curEvent.exdate !== undefined) {
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Log.debug("have datekey=", dateKey, " exdates=", curEvent.exdate);
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if (curEvent.exdate[dateKey] !== undefined) {
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// This date is an exception date, which means we should skip it in the recurrence pattern.
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showRecurrence = false;
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}
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}
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Log.debug(`duration: ${curDurationMs}`);
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startMoment = CalendarFetcherUtils.getAdjustedStartMoment(date, event);
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endMoment = moment(startMoment.valueOf() + curDurationMs);
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if (startMoment.valueOf() === endMoment.valueOf()) {
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endMoment = endMoment.endOf("day");
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}
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@@ -408,7 +416,7 @@ const CalendarFetcherUtils = {
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}
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if (showRecurrence === true) {
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Log.debug(`saving event: ${description}`);
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Log.debug(`saving event: ${recurrenceTitle}`);
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newEvents.push({
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title: recurrenceTitle,
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startDate: startMoment.format("x"),
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@@ -421,7 +429,10 @@ const CalendarFetcherUtils = {
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geo: geo,
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description: description
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});
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} else {
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Log.debug("not saving event ", recurrenceTitle, new Date(startMoment));
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}
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Log.debug(" ");
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}
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// End recurring event parsing.
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} else {
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@@ -472,7 +483,9 @@ const CalendarFetcherUtils = {
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startDate: startMoment.add(adjustHours, "hours").format("x"),
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endDate: endMoment.add(adjustHours, "hours").format("x"),
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fullDayEvent: fullDayEvent,
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recurringEvent: false,
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class: event.class,
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firstYear: event.start.getFullYear(),
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location: location,
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geo: geo,
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description: description
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@@ -488,6 +501,200 @@ const CalendarFetcherUtils = {
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return newEvents;
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},
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/**
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* fixup thew event fields that have dates to use local time
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* BEFORE calling rrule.between
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* @param the event being processed
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* @returns nothing
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*/
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fixEventtoLocal (event) {
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// if there are excluded dates, their date is incorrect and possibly key as well.
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if (event.exdate !== undefined) {
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Object.keys(event.exdate).forEach((dateKey) => {
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// get the date
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let exdate = event.exdate[dateKey];
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Log.debug("exdate w key=", exdate);
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//exdate=CalendarFetcherUtils.convertDateToLocalTime(exdate, event.end.tz)
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exdate = new Date(new Date(exdate.valueOf() - ((120 * 60 * 1000))).getTime());
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Log.debug("new exDate item=", exdate, " with old key=", dateKey);
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let newkey = exdate.toISOString().slice(0, 10);
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if (newkey !== dateKey) {
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Log.debug("new exDate item=", exdate, ` key=${newkey}`);
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event.exdate[newkey] = exdate;
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//delete event.exdate[dateKey]
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}
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});
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Log.debug("updated exdate list=", event.exdate);
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}
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if (event.recurrences) {
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Object.keys(event.recurrences).forEach((dateKey) => {
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let exdate = event.recurrences[dateKey];
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//exdate=new Date(new Date(exdate.valueOf()-(60*60*1000)).getTime())
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Log.debug("new recurrence item=", exdate, " with old key=", dateKey);
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exdate.start = CalendarFetcherUtils.convertDateToLocalTime(exdate.start, exdate.start.tz);
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exdate.end = CalendarFetcherUtils.convertDateToLocalTime(exdate.end, exdate.end.tz);
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Log.debug("adjusted recurringEvent start=", exdate.start, " end=", exdate.end);
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});
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}
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Log.debug("modified recurrences before rrule.between", event.recurrences);
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},
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/**
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* convert a UTC date to local time
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* BEFORE calling rrule.between
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* @param date ti conert
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* tz event is currently in
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* @returns updated date object
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*/
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convertDateToLocalTime (date, tz) {
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let delta_tz_offset = 0;
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let now_offset = CalendarFetcherUtils.getTimezoneOffsetFromTimezone(moment.tz.guess());
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let event_offset = CalendarFetcherUtils.getTimezoneOffsetFromTimezone(tz);
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Log.debug("date to convert=", date);
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if (Math.sign(now_offset) !== Math.sign(event_offset)) {
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delta_tz_offset = Math.abs(now_offset) + Math.abs(event_offset);
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} else {
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// signs are the same
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// if negative
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if (Math.sign(now_offset) === -1) {
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// la looking at chicago
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if (now_offset < event_offset) { // 5 -7
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delta_tz_offset = now_offset - event_offset;
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}
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else { //7 -5 , chicago looking at LA
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delta_tz_offset = event_offset - now_offset;
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}
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}
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else {
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// berlin looking at sydney
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if (now_offset < event_offset) { // 5 -7
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delta_tz_offset = event_offset - now_offset;
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Log.debug("less delta=", delta_tz_offset);
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}
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else { // 11 - 2, sydney looking at berlin
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delta_tz_offset = -(now_offset - event_offset);
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Log.debug("more delta=", delta_tz_offset);
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}
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}
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}
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const newdate = new Date(new Date(date.valueOf() + (delta_tz_offset * 60 * 1000)).getTime());
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Log.debug("modified date =", newdate);
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return newdate;
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},
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/**
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* get the exdate/recurrence hash key from the date object
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* BEFORE calling rrule.between
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* @param the date of the event
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* @returns string date key YYYY-MM-DD
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*/
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getDateKeyFromDate (date) {
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// get our runtime timezone offset
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const nowDiff = CalendarFetcherUtils.getTimezoneOffsetFromTimezone(moment.tz.guess());
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let startday = date.getDate();
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let adjustment = 0;
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Log.debug(" day of month=", (`0${startday}`).slice(-2), " nowDiff=", nowDiff, ` start time=${date.toString().split(" ")[4].slice(0, 2)}`);
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Log.debug("date string= ", date.toString());
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Log.debug("date iso string ", date.toISOString());
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// if the dates are different
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if (date.toString().slice(8, 10) < date.toISOString().slice(8, 10)) {
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startday = date.toString().slice(8, 10);
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Log.debug("< ", startday);
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} else { // tostring is more
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if (date.toString().slice(8, 10) > date.toISOString().slice(8, 10)) {
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startday = date.toISOString().slice(8, 10);
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Log.debug("> ", startday);
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}
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}
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return date.toISOString().substring(0, 8) + (`0${startday}`).slice(-2);
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},
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/**
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* get the timezone offset from the timezone string
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*
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* @param the timezone string
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* @returns the numerical offset
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*/
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getTimezoneOffsetFromTimezone (timeZone) {
|
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const str = new Date().toLocaleString("en", { timeZone, timeZoneName: "longOffset" });
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Log.debug("tz offset=", str);
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const [_, h, m] = str.match(/([+-]\d+):(\d+)$/) || ["", "+00", "00"];
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return h * 60 + (h > 0 ? +m : -m);
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},
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/**
|
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* fixup the date start moment after rrule.between returns date array
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*
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* @param date object from rrule.between results
|
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* the event object it came from
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* @returns moment object
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*/
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getAdjustedStartMoment (date, event) {
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let startMoment = moment(date);
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Log.debug("startMoment pre=", startMoment);
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// get our runtime timezone offset
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const nowDiff = CalendarFetcherUtils.getTimezoneOffsetFromTimezone(moment.tz.guess()); // 10/18 16:49, 300
|
||||
let eventDiff = CalendarFetcherUtils.getTimezoneOffsetFromTimezone(event.end.tz); // watch out, start tz is cleared to handle rrule 120 23:49
|
||||
|
||||
Log.debug("tz diff event=", eventDiff, " local=", nowDiff, " end event timezone=", event.end.tz);
|
||||
|
||||
// if the diffs are different (not same tz for processing as event)
|
||||
if (nowDiff !== eventDiff) {
|
||||
// if signs are different
|
||||
if (Math.sign(nowDiff) !== Math.sign(eventDiff)) {
|
||||
// its the accumulated total
|
||||
Log.debug("diff signs, accumulate");
|
||||
eventDiff = Math.abs(eventDiff) + Math.abs(nowDiff);
|
||||
// sign of diff depends on where you are looking at which event.
|
||||
// australia looking at US, add to get same time
|
||||
Log.debug("new different event diff=", eventDiff);
|
||||
if (Math.sign(nowDiff) === -1) {
|
||||
eventDiff *= -1;
|
||||
// US looking at australia event have to subtract
|
||||
Log.debug("new diff, same sign, total event diff=", eventDiff);
|
||||
}
|
||||
}
|
||||
else {
|
||||
// signs are the same, all east of UTC or all west of UTC
|
||||
// if the signs are negative (west of UTC)
|
||||
Log.debug("signs are the same");
|
||||
if (Math.sign(eventDiff) === -1) {
|
||||
//if west, looking at more west
|
||||
if (nowDiff < eventDiff) {
|
||||
//-600 -420
|
||||
eventDiff = -(eventDiff - (nowDiff - eventDiff)); //-180
|
||||
Log.debug("now looking back east delta diff=", eventDiff);
|
||||
}
|
||||
else {
|
||||
Log.debug("now looking more west");
|
||||
eventDiff = Math.abs(eventDiff - nowDiff);
|
||||
}
|
||||
} else {
|
||||
Log.debug("signs are both positive");
|
||||
// signs are positive (east of UTC)
|
||||
// berlin < sydney
|
||||
if (nowDiff < eventDiff) {
|
||||
// germany vs australia
|
||||
eventDiff = -(eventDiff - nowDiff);
|
||||
}
|
||||
else {
|
||||
// australia vs germany
|
||||
//eventDiff = eventDiff; //- nowDiff
|
||||
}
|
||||
}
|
||||
}
|
||||
startMoment = moment.tz(new Date(date.valueOf() + (eventDiff * (60 * 1000))), event.end.tz);
|
||||
} else {
|
||||
Log.debug("same tz event and display");
|
||||
eventDiff = 0;
|
||||
startMoment = moment.tz(new Date(date.valueOf() - (eventDiff * (60 * 1000))), event.end.tz);
|
||||
}
|
||||
Log.debug("startMoment post=", startMoment);
|
||||
return startMoment;
|
||||
},
|
||||
|
||||
/**
|
||||
* Lookup iana tz from windows
|
||||
* @param {string} msTZName the timezone name to lookup
|
||||
|
||||
Reference in New Issue
Block a user