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Simplify timezone math (#11586)

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* Use utc minutes

* Cleanup
This commit is contained in:
Nicolas Mowen 2024-05-28 08:09:17 -06:00 committed by GitHub
parent 2fda383782
commit 8546d3d315
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4 changed files with 12 additions and 33 deletions
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15
web/src/components/player/PreviewPlayer.tsx
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@ -10,7 +10,7 @@ import useSWR from "swr";
import { FrigateConfig } from "@/types/frigateConfig";
import { Preview } from "@/types/preview";
import { PreviewPlayback } from "@/types/playback";
import { getTimestampOffset, isCurrentHour } from "@/utils/dateUtil";
import { isCurrentHour } from "@/utils/dateUtil";
import { baseUrl } from "@/api/baseUrl";
import { isAndroid, isChrome, isMobile } from "react-device-detect";
import { TimeRange } from "@/types/timeline";
@ -41,13 +41,11 @@ export default function PreviewPlayer({
const [currentHourFrame, setCurrentHourFrame] = useState<string>();
const currentPreview = useMemo(() => {
const timeRangeOffset = getTimestampOffset(timeRange.before);
return cameraPreviews.find(
(preview) =>
preview.camera == camera &&
Math.round(preview.start) >= timeRange.after + timeRangeOffset &&
Math.floor(preview.end) <= timeRange.before + timeRangeOffset,
Math.round(preview.start) >= timeRange.after &&
Math.floor(preview.end) <= timeRange.before,
);
}, [cameraPreviews, camera, timeRange]);
@ -242,14 +240,11 @@ function PreviewVideoPlayer({
return;
}
// account for minutes offset in timezone
const timeRangeOffset = getTimestampOffset(timeRange.before);
const preview = cameraPreviews.find(
(preview) =>
preview.camera == camera &&
Math.round(preview.start) >= timeRange.after + timeRangeOffset &&
Math.floor(preview.end) <= timeRange.before + timeRangeOffset,
Math.round(preview.start) >= timeRange.after &&
Math.floor(preview.end) <= timeRange.before,
);
if (preview != currentPreview) {

10
web/src/pages/Events.tsx
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@ -12,7 +12,6 @@ import {
ReviewSummary,
SegmentedReviewData,
} from "@/types/review";
import { getTimestampOffset } from "@/utils/dateUtil";
import EventView from "@/views/events/EventView";
import { RecordingView } from "@/views/events/RecordingView";
import axios from "axios";
@ -224,18 +223,15 @@ export default function Events() {
// preview videos
const previewTimes = useMemo(() => {
// offset by timezone minutes
const timestampOffset = getTimestampOffset(Date.now() / 1000);
const startDate = new Date(selectedTimeRange.after * 1000);
startDate.setMinutes(0, 0, 0);
startDate.setUTCMinutes(0, 0, 0);
const endDate = new Date(selectedTimeRange.before * 1000);
endDate.setHours(endDate.getHours() + 1, 0, 0, 0);
return {
after: startDate.getTime() / 1000 + timestampOffset,
before: endDate.getTime() / 1000 + timestampOffset,
after: startDate.getTime() / 1000,
before: endDate.getTime() / 1000,
};
}, [selectedTimeRange]);

15
web/src/utils/dateUtil.ts
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@ -269,15 +269,6 @@ export const getUTCOffset = (
);
};
/**
* Gets the minute offset in seconds of the current timezone from UTC.
* Any timezones with an offset in hours will return 0,
* any timezones with an offset of 30 or 45 minutes will return that amount in seconds.
*/
export function getTimestampOffset(timestamp: number) {
return (getUTCOffset(new Date(timestamp * 1000)) % 60) * 60;
}
export function getRangeForTimestamp(timestamp: number) {
const date = new Date(timestamp * 1000);
date.setMinutes(0, 0, 0);
@ -301,9 +292,7 @@ export function getEndOfDayTimestamp(date: Date) {
export function isCurrentHour(timestamp: number) {
const now = new Date();
now.setMinutes(0, 0, 0);
now.setUTCMinutes(0, 0, 0);
const timeShift = getTimestampOffset(timestamp);
return timestamp + timeShift > now.getTime() / 1000;
return timestamp > now.getTime() / 1000;
}

5
web/src/utils/timelineUtil.tsx
View File

@ -131,13 +131,12 @@ export function getChunkedTimeDay(timeRange: TimeRange): TimeRange[] {
endOfThisHour.setSeconds(0, 0);
const data: TimeRange[] = [];
const startDay = new Date(timeRange.after * 1000);
startDay.setMinutes(0, 0, 0);
startDay.setUTCMinutes(0, 0, 0);
let start = startDay.getTime() / 1000;
let end = 0;
for (let i = 0; i < 24; i++) {
startDay.setHours(startDay.getHours() + 1, 0, 0, 0);
startDay.setHours(startDay.getHours() + 1);
if (startDay > endOfThisHour) {
break;