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fix full date start time and duration, east of UTC, make getCorrection more understandable with variable name changes

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This commit is contained in:
Sam Detweiler 2020-11-16 13:49:44 -06:00
parent a05c08ed48
commit 12405b66d0
2 changed files with 53 additions and 31 deletions
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2
CHANGELOG.md
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@ -12,6 +12,7 @@ _This release is scheduled to be released on 2021-01-01._
### Added
- Added new log level "debug" to the logger.
- Added Hindi & Gujarati translation.
- Chuvash translation.
@ -31,6 +32,7 @@ _This release is scheduled to be released on 2021-01-01._
- Rename Greek translation to correct ISO 639-1 alpha-2 code (gr > el). (#2155)
- Add a space after icons of sunrise and sunset (#2169)
- Fix calendar when no DTEND record found in event, startDate overlay when endDate set (#2177)
- Fix calendar full day event east of UTC start time (#2200)
## [2.13.0] - 2020-10-01

82
modules/default/calendar/calendarfetcher.js
View File

@ -85,7 +85,7 @@ const CalendarFetcher = function (url, reloadInterval, excludedEvents, maximumEn
};
const eventDate = function (event, time) {
return event[time].length === 8 ? moment(event[time], "YYYYMMDD") : moment(new Date(event[time]));
return isFullDayEvent(event) ? moment(event[time], "YYYYMMDD") : moment(new Date(event[time]));
};
Object.entries(data).forEach(([key, event]) => {
@ -110,7 +110,7 @@ const CalendarFetcher = function (url, reloadInterval, excludedEvents, maximumEn
if (event.type === "VEVENT") {
let startDate = eventDate(event, "start");
let endDate;
// Log.log("\nevent="+JSON.stringify(event))
// Log.debug("\nevent="+JSON.stringify(event))
if (typeof event.end !== "undefined") {
endDate = eventDate(event, "end");
} else if (typeof event.duration !== "undefined") {
@ -124,6 +124,8 @@ const CalendarFetcher = function (url, reloadInterval, excludedEvents, maximumEn
}
}
Log.debug(" start=" + startDate.toDate() + " end=" + endDate.toDate());
// calculate the duration of the event for use with recurring events.
let duration = parseInt(endDate.format("x")) - parseInt(startDate.format("x"));
@ -213,9 +215,9 @@ const CalendarFetcher = function (url, reloadInterval, excludedEvents, maximumEn
pastLocal = pastMoment.subtract(past.getTimezoneOffset(), "minutes").toDate();
futureLocal = futureMoment.subtract(future.getTimezoneOffset(), "minutes").toDate();
}
Log.debug(" between=" + pastLocal + " to " + futureLocal);
const dates = rule.between(pastLocal, futureLocal, true, limitFunction);
Log.debug("title=" + event.summary.val + " dates=" + JSON.stringify(dates));
Log.debug("title=" + event.summary + " dates=" + JSON.stringify(dates));
// The "dates" array contains the set of dates within our desired date range range that are valid
// for the recurrence rule. *However*, it's possible for us to have a specific recurrence that
// had its date changed from outside the range to inside the range. For the time being,
@ -232,7 +234,6 @@ const CalendarFetcher = function (url, reloadInterval, excludedEvents, maximumEn
}
}
}
// Loop through the set of date entries to see which recurrences should be added to our event list.
for (let d in dates) {
let date = dates[d];
@ -248,7 +249,7 @@ const CalendarFetcher = function (url, reloadInterval, excludedEvents, maximumEn
Log.debug("fullday");
// if the offset is negative, east of GMT where the problem is
if (date.getTimezoneOffset() < 0) {
// get the offset of today when we are processing
// get the offset of today where we are processing
// this will be the correction we need to apply
let nowOffset = new Date().getTimezoneOffset();
Log.debug("now offset is " + nowOffset);
@ -256,6 +257,9 @@ const CalendarFetcher = function (url, reloadInterval, excludedEvents, maximumEn
Log.debug(" recurring date is " + date + " offset is " + date.getTimezoneOffset());
// apply the correction to the date/time to get it UTC relative
date = new Date(date.getTime() - Math.abs(nowOffset) * 60000);
// the duration was calculated way back at the top before we could correct the start time..
// fix it for this event entry
duration = 24 * 60 * 60 * 1000;
Log.debug("new recurring date is " + date);
}
}
@ -275,8 +279,7 @@ const CalendarFetcher = function (url, reloadInterval, excludedEvents, maximumEn
// This date is an exception date, which means we should skip it in the recurrence pattern.
showRecurrence = false;
}
//Log.log("duration="+duration)
Log.debug("duration=" + duration);
endDate = moment(parseInt(startDate.format("x")) + duration, "x");
if (startDate.format("x") === endDate.format("x")) {
@ -315,7 +318,8 @@ const CalendarFetcher = function (url, reloadInterval, excludedEvents, maximumEn
} else {
// Single event.
const fullDayEvent = isFacebookBirthday ? true : isFullDayEvent(event);
// Log.log("full day event")
// Log.debug("full day event")
if (includePastEvents) {
// Past event is too far in the past, so skip.
if (endDate < past) {
@ -348,7 +352,7 @@ const CalendarFetcher = function (url, reloadInterval, excludedEvents, maximumEn
}
// if the start and end are the same, then make end the 'end of day' value (start is at 00:00:00)
if (fullDayEvent && startDate.format("x") === endDate.format("x")) {
//Log.log("end same as start")
//Log.debug("end same as start")
endDate = endDate.endOf("day");
}
// get correction for date saving and dst change between now and then
@ -399,58 +403,74 @@ const CalendarFetcher = function (url, reloadInterval, excludedEvents, maximumEn
if (event.start.tz.includes(" ")) {
// use the lookup table to get theIANA name as moment and date don't know MS timezones
let tz = getIanaTZFromMS(event.start.tz);
Log.debug("corrected TZ=" + tz);
// watch out for unregistered windows timezone names
// if we had a successfule lookup
if (tz) {
// change the timezone to the IANA name
event.start.tz = tz;
Log.debug("corrected timezone=" + event.start.tz);
// Log.debug("corrected timezone="+event.start.tz)
}
}
Log.debug("corrected tz=" + event.start.tz);
let mmo = 0; // offset from TZ string or calculated
let current_offset = 0; // offset from TZ string or calculated
let mm = 0; // date with tz or offset
let mms = 0; // utc offset of created with tz
let start_offset = 0; // utc offset of created with tz
// if there is still an offset, lookup failed, use it
if (event.start.tz.startsWith("(")) {
const regex = /[+|-]\d*:\d*/;
mmo = event.start.tz.match(regex).toString();
mms = mmo;
Log.debug("ical offset=" + mmo + " date=" + date);
const start_offsetString = event.start.tz.match(regex).toString().split(":");
let start_offset = parseInt(start_offsetString[0]);
start_offset *= event.start.tz[1] === "-" ? -1 : 1;
adjustHours = start_offset;
Log.debug("defined offset=" + start_offset + " hours");
current_offset = start_offset;
event.start.tz = "";
Log.debug("ical offset=" + current_offset + " date=" + date);
mm = moment(date);
mm = mm.utcOffset(mmo);
let x = parseInt(moment(new Date()).utcOffset());
Log.debug("net mins=" + (current_offset * 60 - x));
mm = mm.add(x - current_offset * 60, "minutes");
adjustHours = (current_offset * 60 - x) / 60;
event.start = mm.toDate();
Log.debug("adjusted date=" + event.start);
} else {
// get the start time in that timezone
Log.debug("ttttttt=" + moment(event.start).toDate());
mms = moment.tz(moment(event.start), event.start.tz).utcOffset();
Log.debug("ms offset=" + mms);
Log.debug("start date/time=" + moment(event.start).toDate());
start_offset = moment.tz(moment(event.start), event.start.tz).utcOffset();
Log.debug("start offset=" + start_offset);
Log.debug("start date =" + moment.tz(moment(event.start), event.start.tz).toDate());
Log.debug("start date/time w tz =" + moment.tz(moment(event.start), event.start.tz).toDate());
// get the specified date in that timezone
mm = moment.tz(moment(date), event.start.tz);
Log.debug("mm=" + mm.toDate());
mmo = mm.utcOffset();
Log.debug("event date=" + mm.toDate());
current_offset = mm.utcOffset();
}
Log.debug("mm ofset=" + mmo + " hour=" + mm.format("H") + " event date=" + mm.toDate());
Log.debug("event offset=" + current_offset + " hour=" + mm.format("H") + " event date=" + mm.toDate());
// if the offset is greater than 0, east of london
if (mmo !== mms) {
if (current_offset !== start_offset) {
// big offset
Log.debug("offset");
let h = parseInt(mm.format("H"));
// check if the event time is less than the offset
if (h > 0 && h < Math.abs(mmo) / 60) {
if (h > 0 && h < Math.abs(current_offset) / 60) {
// if so, rrule created a wrong date (utc day, oops, with utc yesterday adjusted time)
// we need to fix that
adjustHours = 24;
Log.debug("adjusting date");
// Log.debug("adjusting date")
}
if (Math.abs(mmo) > Math.abs(mms)) {
adjustHours += 1;
Log.debug("adjust up 1 hour dst change");
} else if (Math.abs(mmo) < Math.abs(mms)) {
//-300 > -240
//if (Math.abs(current_offset) > Math.abs(start_offset)){
if (current_offset > start_offset) {
adjustHours -= 1;
Log.debug("adjust down 1 hour dst change");
//} else if (Math.abs(current_offset) < Math.abs(start_offset)) {
} else if (current_offset < start_offset) {
adjustHours += 1;
Log.debug("adjust up 1 hour dst change");
}
}
}