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Fix 24h bar timezone mismatch and add time-interval uptime calculation

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Bars were all grey for 24h view because SQL bucket keys (UTC) never
matched frontend keys (local timezone). Added toUTCKey() helper to
generate UTC keys for all ranges. Replaced check-counting uptime with
time-interval method for 24h/7d: time between consecutive up checks
counts as uptime, intervals involving down checks count as downtime,
uncovered time is unknown.
This commit is contained in:
Shivam Patel
2026-02-09 04:15:34 -05:00
parent d1fd790533
commit e47a719d79
2 changed files with 100 additions and 60 deletions
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16
components/widgets/UptimeCard.tsx
View File

@@ -59,6 +59,16 @@ const RANGE_CONFIG: Record<TimeRange, { bars: number; bucketMs: number }> = {
// --- Helpers ---
function toUTCKey(d: Date, mode: 'hour' | 'day' | 'month'): string {
const Y = d.getUTCFullYear();
const M = String(d.getUTCMonth() + 1).padStart(2, '0');
if (mode === 'month') return `${Y}-${M}`;
const D = String(d.getUTCDate()).padStart(2, '0');
if (mode === 'day') return `${Y}-${M}-${D}`;
const H = String(d.getUTCHours()).padStart(2, '0');
return `${Y}-${M}-${D} ${H}:00`;
}
function bucketStatus(upCount: number, total: number): BarStatus {
if (total === 0) return 'unknown';
if (upCount === total) return 'up';
@@ -81,7 +91,7 @@ function buildBars(range: TimeRange, history: HistoryBucket[] | undefined): BarD
if (range === '24h') {
for (let i = config.bars - 1; i >= 0; i--) {
const d = subHours(now, i);
const key = format(d, 'yyyy-MM-dd HH') + ':00';
const key = toUTCKey(d, 'hour');
const h = bucketMap.get(key);
const hourStart = new Date(d);
hourStart.setMinutes(0, 0, 0);
@@ -95,7 +105,7 @@ function buildBars(range: TimeRange, history: HistoryBucket[] | undefined): BarD
} else if (range === '7d' || range === '30d') {
for (let i = config.bars - 1; i >= 0; i--) {
const d = subDays(now, i);
const key = format(d, 'yyyy-MM-dd');
const key = toUTCKey(d, 'day');
const h = bucketMap.get(key);
bars.push({
label: format(d, 'MMM d, yyyy'),
@@ -108,7 +118,7 @@ function buildBars(range: TimeRange, history: HistoryBucket[] | undefined): BarD
// 365d — monthly buckets
for (let i = 11; i >= 0; i--) {
const d = subMonths(now, i);
const key = format(d, 'yyyy-MM');
const key = toUTCKey(d, 'month');
const h = bucketMap.get(key);
bars.push({
label: format(d, 'MMM yyyy'),