BUR-61 добавлена возможность сохранять и отображать current.value = null значений

Reviewed-on: #21

src/entities/current/types.ts

@@ -1,7 +1,7 @@
 export type CurrentItem = {
   edge: string;
   tag: string;
-  value: number;
+  value: number | null;
   createdAt: string;
   updatedAt: string;
   time: string;

src/features/edge-detail/components/ArchiveView.tsx

@@ -5,7 +5,7 @@ import { CalendarDays, CalendarClock, Check, ChevronDown, Clock3, DatabaseZap, S
 import type { CurrentItem } from '../../../entities/current/types';
 import { HistoryChart } from '../../../features/history-chart/HistoryChart';
 import { RANGE_PRESETS, createRange, type DateRangeState } from '../../../features/history/dateRange';
-import { toIsoFromInput } from '../../../utils/format';
+import { formatNumber, toIsoFromInput } from '../../../utils/format';
 import type { HistoryGranularity } from '../../../utils/historyGranularity';
 
 type ArchiveViewProps = {
@@ -191,7 +191,7 @@ export function ArchiveView({
                       {label !== item.tag ? <small>{item.tag}</small> : null}
                     </span>
                     <span className="tag-select-item__side">
-                      <strong>{item.value.toLocaleString('ru-RU', { maximumFractionDigits: item.precision ?? 3 })}</strong>
+                      <strong>{formatNumber(item.value)}</strong>
                       {selected ? <Check size={15} /> : null}
                     </span>
                   </button>

src/features/electrical-schematics/ElectricalNode.tsx

@@ -29,8 +29,8 @@ export function ElectricalNode({ liveValues, node, ownerEdgeId }: ElectricalNode
       ? getLiveValue(liveValues, node.edgeId || ownerEdgeId, node.tagId)
       : getLiveValue(liveValues, bindingEdgeId, bindings?.stateTagId);
   const alarmValue = node.kind === 'decoration' ? getLiveValue(liveValues, bindingEdgeId, bindings?.alarmTagId) : undefined;
-  const alarmActive = Boolean(alarmValue && Number(alarmValue.value) !== 0);
+  const alarmActive = Boolean(alarmValue && alarmValue.value !== null && alarmValue.value !== 0);
-  const stateActive = Boolean(mainValue && Number(mainValue.value) !== 0);
+  const stateActive = Boolean(mainValue && mainValue.value !== null && mainValue.value !== 0);
   const title = getNodeTitle(node, mainValue);
   const style: CSSProperties = {
     left: node.position.x,

src/features/history-chart/HistoryChartArea.tsx

@@ -1,6 +1,7 @@
 import type { EChartsOption } from 'echarts';
 import ReactEChartsCore from 'echarts-for-react/esm/core.js';
-import { useMemo } from 'react';
+import { useCallback, useEffect, useMemo, useRef } from 'react';
+import type { WheelEvent } from 'react';
 import type { DataZoomEventBatch } from './chartTypes';
 import { echarts } from './historyChartEcharts';
 
@@ -12,6 +13,21 @@ type HistoryChartAreaProps = {
   onDataZoom: (event: DataZoomEventBatch) => void;
 };
 
+/** Включает или выключает нативный X-зум колесом, чтобы Shift + колесо работал только по Y. */
+function setXAxisWheelZoom(chart: ReturnType<ReactEChartsCore['getEchartsInstance']>, enabled: boolean): void {
+  chart.setOption(
+    {
+      dataZoom: [
+        {
+          id: 'history-x-inside',
+          zoomOnMouseWheel: enabled,
+        },
+      ],
+    },
+    { lazyUpdate: true },
+  );
+}
+
 /** Отвечает только за визуальную область графика: placeholder или ECharts canvas. */
 export function HistoryChartArea({
   hasData,
@@ -20,12 +36,55 @@ export function HistoryChartArea({
   option,
   onDataZoom,
 }: HistoryChartAreaProps) {
+  const chartRef = useRef<InstanceType<typeof ReactEChartsCore> | null>(null);
+  const xWheelZoomEnabledRef = useRef(true);
   const onChartEvents = useMemo(
     () => ({
       datazoom: onDataZoom,
     }),
     [onDataZoom],
   );
+  const updateXAxisWheelZoom = useCallback((enabled: boolean) => {
+    const chart = chartRef.current?.getEchartsInstance();
+
+    if (!chart || xWheelZoomEnabledRef.current === enabled) {
+      return;
+    }
+
+    xWheelZoomEnabledRef.current = enabled;
+    setXAxisWheelZoom(chart, enabled);
+  }, []);
+
+  useEffect(() => {
+    const handleKeyDown = (event: KeyboardEvent) => {
+      if (event.key === 'Shift') {
+        updateXAxisWheelZoom(false);
+      }
+    };
+    const handleKeyUp = (event: KeyboardEvent) => {
+      if (event.key === 'Shift') {
+        updateXAxisWheelZoom(true);
+      }
+    };
+    const handleBlur = () => updateXAxisWheelZoom(true);
+
+    window.addEventListener('keydown', handleKeyDown);
+    window.addEventListener('keyup', handleKeyUp);
+    window.addEventListener('blur', handleBlur);
+
+    return () => {
+      window.removeEventListener('keydown', handleKeyDown);
+      window.removeEventListener('keyup', handleKeyUp);
+      window.removeEventListener('blur', handleBlur);
+    };
+  }, [updateXAxisWheelZoom]);
+
+  const handleWheelCapture = useCallback(
+    (event: WheelEvent<HTMLDivElement>) => {
+      updateXAxisWheelZoom(!event.shiftKey);
+    },
+    [updateXAxisWheelZoom],
+  );
 
   if (!hasSelection) {
     return <div className="chart-placeholder">Разверните список показателей и выберите серию для графика</div>;
@@ -39,5 +98,16 @@ export function HistoryChartArea({
     return <div className="chart-placeholder">Нет данных для выбранного диапазона</div>;
   }
 
-  return <ReactEChartsCore echarts={echarts} option={option} className="history-chart" onEvents={onChartEvents} lazyUpdate />;
+  return (
+    <div className="history-chart-shell" onWheelCapture={handleWheelCapture}>
+      <ReactEChartsCore
+        ref={chartRef}
+        echarts={echarts}
+        option={option}
+        className="history-chart"
+        onEvents={onChartEvents}
+        lazyUpdate
+      />
+    </div>
+  );
 }

src/styles/charts.css

@@ -1,8 +1,14 @@
+.history-chart-shell,
 .history-chart {
   width: 100%;
   height: 440px;
 }
 
+.history-chart-shell .history-chart {
+  height: 100%;
+}
+
+.chart-section--archive .history-chart-shell,
 .chart-section--archive .history-chart {
   flex: 1;
   min-height: 520px;
@@ -67,6 +73,7 @@
 }
 
 @media (max-width: 680px) {
+  .chart-section--archive .history-chart-shell,
   .chart-section--archive .history-chart,
   .chart-section--archive .chart-placeholder {
     min-height: 420px;

src/utils/format.ts

@@ -1,7 +1,7 @@
 /** Форматирует числовое значение показателя для карточек и мини-плиток. */
-export function formatNumber(value: number): string {
+export function formatNumber(value: number | null): string {
-  if (!Number.isFinite(value)) {
+  if (value === null || !Number.isFinite(value)) {
-    return '-';
+    return '—';
   }
 
   return new Intl.NumberFormat('ru-RU', {

src/utils/metricStatus.ts

@@ -16,8 +16,9 @@ function isConfiguredLimit(value: number | null): value is number {
 export function getMetricStatus(item: CurrentItem, now = Date.now()): MetricStatusInfo {
   const measuredAt = new Date(item.time).getTime();
   const ageSeconds = Number.isFinite(measuredAt) ? Math.max(0, Math.round((now - measuredAt) / 1000)) : Number.POSITIVE_INFINITY;
-  const belowMin = isConfiguredLimit(item.min) && item.value < item.min;
+  const value = item.value;
-  const aboveMax = isConfiguredLimit(item.max) && item.value > item.max;
+  const belowMin = isConfiguredLimit(value) && isConfiguredLimit(item.min) && value < item.min;
+  const aboveMax = isConfiguredLimit(value) && isConfiguredLimit(item.max) && value > item.max;
 
   if (belowMin || aboveMax) {
     return { status: 'critical', label: 'за пределами уставки', ageSeconds };