fix(events): pad hourly buckets in Events 'Today' chart and use locale for labels

src/components/charts/BarChart.tsx

@@ -7,6 +7,8 @@ import { renderNumberLabels } from '@/lib/charts';
 import { getThemeColors } from '@/lib/colors';
 import { formatDate, DATE_FORMATS } from '@/lib/date';
 import { formatLongCurrency, formatLongNumber } from '@/lib/format';
+import dayjs from 'dayjs';
+import type { ManipulateType } from 'dayjs';
 
 const dateFormats = {
   millisecond: 'T',
@@ -32,6 +34,124 @@ export interface BarChartProps extends ChartProps {
   maxDate?: Date;
 }
 
+function stepByUnit(start: dayjs.Dayjs, end: dayjs.Dayjs, unit: ManipulateType) {
+  const steps: dayjs.Dayjs[] = [];
+  let cur = start.startOf(unit);
+  const endBound = end.startOf(unit);
+  while (cur.isBefore(endBound) || cur.isSame(endBound)) {
+    steps.push(cur);
+    cur = cur.add(1, unit);
+    // safety guard
+    if (steps.length > 10000) break;
+  }
+  return steps;
+}
+
+/**
+ * Pads time-series chartData between minDate..maxDate by unit.
+ * Supports common chartData shapes:
+ * 1) Chart.js style: { labels: string[], datasets: [{ label, data: number[] | {x,y}[] }] }
+ * 2) Series style: [{ label, data: [{ x, y }] }]
+ */
+
+function padTimeSeriesChartData(
+  chartData: any,
+  unit: ManipulateType,
+  minDate?: Date,
+  maxDate?: Date,
+) {
+  if (!unit || !minDate || !maxDate || !chartData) return chartData;
+
+  const start = dayjs(minDate);
+  const end = dayjs(maxDate);
+
+  // build the canonical list of step timestamps (ISO strings)
+  const steps = stepByUnit(start, end, unit);
+  const stepKeys = steps.map(s => s.toISOString());
+
+  // helper to find value by x in an array of {x,y}
+  const mapArrayXY = (arr: any[]) => {
+    const m = new Map<string, number>();
+    arr.forEach(d => {
+      if (!d) return;
+      const x = d.x ? dayjs(d.x).toISOString() : d[0] ? dayjs(d[0]).toISOString() : null;
+      const y =
+        typeof d.y === 'number' ? d.y : Array.isArray(d) && typeof d[1] === 'number' ? d[1] : 0;
+      if (x) {
+        // accumulate if duplicates exist
+        m.set(x, (m.get(x) || 0) + (y || 0));
+      }
+    });
+    return m;
+  };
+
+  // Case A: Chart.js style
+  if (chartData && chartData.labels && Array.isArray(chartData.datasets)) {
+    // Normalize: if dataset.data is array of numbers aligned with labels -> create label->value map
+    const newLabels = stepKeys.map(k => formatDate(new Date(k), DATE_FORMATS[unit], 'en')); // labels formatted; locale handled by Chart options
+    const newDatasets = chartData.datasets.map((ds: any) => {
+      // two subcases: ds.data is array of primitives aligning to chartData.labels OR array of {x,y}
+      if (!ds || !Array.isArray(ds.data)) return { ...ds, data: Array(newLabels.length).fill(0) };
+
+      // detect object entries
+      const first = ds.data[0];
+      if (first && typeof first === 'object' && ('x' in first || 'y' in first)) {
+        const m = mapArrayXY(ds.data);
+        const data = stepKeys.map(k => m.get(k) || 0);
+        return { ...ds, data };
+      }
+
+      // otherwise assume ds.data aligns with chartData.labels
+      const labelMap = new Map<string, number>();
+      (chartData.labels || []).forEach((lbl: any, idx: number) => {
+        const key = (lbl && new Date(lbl).toISOString()) || lbl; // try to convert label -> ISO if possible
+        labelMap.set(key, ds.data[idx] ?? 0);
+        // also store raw label string
+        labelMap.set(String(lbl), ds.data[idx] ?? 0);
+      });
+
+      const data = stepKeys.map(k => labelMap.get(k) ?? labelMap.get(new Date(k).toString()) ?? 0);
+      return { ...ds, data };
+    });
+
+    return { ...chartData, labels: newLabels, datasets: newDatasets };
+  }
+
+  // Case A2: Chart.js-style object with datasets but without labels,
+  // where datasets[].data is [{ x, y }] (this is the shape EventsChart produces)
+  if (chartData && Array.isArray(chartData.datasets) && !chartData.labels) {
+    const newDatasets = chartData.datasets.map((ds: any) => {
+      if (!ds || !Array.isArray(ds.data)) {
+        // produce zero series aligned to steps
+        const data = stepKeys.map(k => ({ x: k, y: 0 }));
+        return { ...ds, data };
+      }
+      const m = mapArrayXY(ds.data);
+      const data = stepKeys.map(k => ({ x: k, y: m.get(k) || 0 }));
+      return { ...ds, data };
+    });
+
+    // keep any other fields (like focusLabel) intact
+    return { ...chartData, datasets: newDatasets };
+  }
+
+  // Case B: Series style: array of series objects { label, data: [{ x, y }] }
+  if (Array.isArray(chartData)) {
+    const paddedSeries = chartData.map(series => {
+      if (!series || !Array.isArray(series.data)) return { ...series, data: stepKeys.map(() => 0) };
+      const m = mapArrayXY(series.data);
+      // produce data array aligned with steps (each element { x: <iso>, y: <num> } or number depending on original)
+      // We'll return in the { x, y } form so Chart can understand timeseries data
+      const data = stepKeys.map(k => ({ x: k, y: m.get(k) || 0 }));
+      return { ...series, data };
+    });
+    return paddedSeries;
+  }
+
+  // fallback: return original
+  return chartData;
+}
+
 export function BarChart({
   chartData,
   renderXLabel,
@@ -50,6 +170,14 @@ export function BarChart({
   const { locale } = useLocale();
   const { colors } = useMemo(() => getThemeColors(theme), [theme]);
 
+  // If this is a timeseries and we have min/max and a time unit, pad missing steps
+  const paddedChartData = useMemo(() => {
+    if (XAxisType === 'timeseries' && unit && minDate && maxDate) {
+      return padTimeSeriesChartData(chartData, unit as ManipulateType, minDate, maxDate);
+    }
+    return chartData;
+  }, [chartData, unit, XAxisType, minDate?.toString(), maxDate?.toString()]);
+
   const chartOptions: any = useMemo(() => {
     return {
       __id: new Date().getTime(),
@@ -94,7 +222,7 @@ export function BarChart({
         },
       },
     };
-  }, [chartData, colors, unit, stacked, renderXLabel, renderYLabel]);
+  }, [paddedChartData, colors, unit, stacked, renderXLabel, renderYLabel]);
 
   const handleTooltip = ({ tooltip }: { tooltip: any }) => {
     const { opacity, labelColors, dataPoints } = tooltip;
@@ -121,7 +249,7 @@ export function BarChart({
       <Chart
         {...props}
         type="bar"
-        chartData={chartData}
+        chartData={paddedChartData}
         chartOptions={chartOptions}
         onTooltip={handleTooltip}
       />