Merge pull request 'Сглаживающая линия' (#28) from dev into main

Reviewed-on: #28

.env.example

@@ -1,5 +1,6 @@
-branch=
+BRANCH=
-DEV_API_URL=http://localhost:3101
+#DEV_API_URL=http://localhost:3101
+DEV_API_URL=https://beta.drill.greact.ru
 VITE_DIAGRAM_API_URL=http://localhost:3002
 VITE_TOIR_LIGHT_ORIGIN=https://toir-light.greact.ru
 VITE_KEYCLOAK_URL=https://sso.greact.ru

src/components/CameraView.tsx

@@ -6,6 +6,21 @@ type CameraViewProps = {
   wsUrl: string;
 };
 
+const CAMERA_PLAYER_CONFIG = {
+  enableWorker: true,
+  enableStashBuffer: true,
+  stashInitialSize: 512,
+  autoCleanupSourceBuffer: true,
+  autoCleanupMaxBackwardDuration: 10,
+  autoCleanupMinBackwardDuration: 5,
+  liveBufferLatencyChasing: true,
+  liveBufferLatencyMaxLatency: 5.0,
+  liveBufferLatencyMinRemain: 2.0,
+  liveSync: false,
+  lazyLoad: false,
+  deferLoadAfterSourceOpen: false,
+};
+
 export function CameraView({ title = 'Камера', wsUrl }: CameraViewProps) {
   const videoRef = useRef<HTMLVideoElement | null>(null);
   const [error, setError] = useState<string | null>(null);
@@ -13,6 +28,7 @@ export function CameraView({ title = 'Камера', wsUrl }: CameraViewProps) {
   useEffect(() => {
     const video = videoRef.current;
     let player: ReturnType<typeof mpegts.createPlayer> | null = null;
+    const handlePlayerError = () => setError('Ошибка видеопотока');
 
     if (!video) {
       return;
@@ -30,20 +46,22 @@ export function CameraView({ title = 'Камера', wsUrl }: CameraViewProps) {
     }
 
     player = mpegts.createPlayer(
-      { type: 'mpegts', isLive: true, url: wsUrl },
+      { type: 'mpegts', isLive: true, url: wsUrl, hasAudio: false },
-      { liveBufferLatencyChasing: true, liveBufferLatencyMaxLatency: 1.5 },
+      CAMERA_PLAYER_CONFIG,
     );
 
+    player.on(mpegts.Events.ERROR, handlePlayerError);
     player.attachMediaElement(video);
     player.load();
 
     const playResult = player.play();
     if (playResult instanceof Promise) {
-      void playResult.then(() => setError(null)).catch(() => setError('Не удалось запустить воспроизведение'));
+      void playResult.then(() => setError(null)).catch(() => undefined);
     }
 
     return () => {
       video.removeEventListener('playing', clearError);
+      player?.off(mpegts.Events.ERROR, handlePlayerError);
       player?.pause();
       player?.unload();
       player?.detachMediaElement();

src/components/MetricWidget.tsx

@@ -6,12 +6,17 @@ type MetricWidgetProps = {
 };
 
 export function MetricWidget({ item }: MetricWidgetProps) {
-  const title = item.name?.trim() || item.tag;
+  const name = item.name?.trim() || item.tag;
+  const unit = item.unitOfMeasurement?.trim();
 
   return (
-    <article className="metric-widget" title={`${title} (${item.tag})`}>
+    <article className="metric-widget" title={`${name} (${item.tag})`}>
-      <span className="metric-widget__tag">{title}</span>
+      <span className="metric-widget__id">{item.tag}</span>
+      <span className="metric-widget__name">{name}</span>
+      <span className="metric-widget__reading">
         <strong className="metric-widget__value">{formatNumber(item.value)}</strong>
+        {unit ? <span className="metric-widget__unit">{unit}</span> : null}
+      </span>
     </article>
   );
 }

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

@@ -4,8 +4,10 @@ import { useRef } from 'react';
 import { CalendarDays, CalendarClock, Check, ChevronDown, Clock3, DatabaseZap, Search } from 'lucide-react';
 import type { CurrentItem } from '../../../entities/current/types';
 import { HistoryChart } from '../../../features/history-chart/HistoryChart';
+import { HistoryChartAvgLineModeControl } from '../../../features/history-chart/HistoryChartAvgLineModeControl';
+import type { AvgLineMode } from '../../../features/history-chart/chartTypes';
 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 = {
@@ -93,6 +95,8 @@ export function ArchiveView({
   onSelectVisibleTags,
   onToggleTag,
 }: ArchiveViewProps) {
+  const [avgLineMode, setAvgLineMode] = useState<AvgLineMode>('auto');
+  const [selectedRangePresetId, setSelectedRangePresetId] = useState<string>('24h');
   const [selectorOpen, setSelectorOpen] = useState(false);
   const selectedPreview = selectedTags.slice(0, 10);
   const hiddenSelectedCount = Math.max(0, selectedTags.length - selectedPreview.length);
@@ -103,6 +107,7 @@ export function ArchiveView({
   const fromIso = toIsoFromInput(range.from) as string;
   const toIso = toIsoFromInput(range.to) as string;
   const updateRangePart = (rangePart: RangePart, inputPart: RangeInputPart, value: string) => {
+    setSelectedRangePresetId('');
     onRangeChange({
       ...range,
       [rangePart]: updateRangeInputPart(range[rangePart], inputPart, value),
@@ -149,14 +154,14 @@ export function ArchiveView({
                 <input value={search} onChange={(event) => onSearchChange(event.target.value)} placeholder="Поиск" />
               </label>
               <div className="tag-selector__tools">
-                <button type="button" onClick={onSelectFirstTags}>
+                {/* <button type="button" onClick={onSelectFirstTags}>
                   Первый
-                </button>
+                </button> */}
                 <button type="button" onClick={onSelectVisibleTags}>
-                  Выбрать найденный
+                  Выбрать все
                 </button>
                 <button type="button" onClick={onClearVisibleTags}>
-                  Снять найденные
+                  Снять все
                 </button>
                 <button type="button" onClick={onClearTags}>
                   Сбросить все
@@ -191,7 +196,7 @@ 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>
@@ -209,13 +214,23 @@ export function ArchiveView({
         onPointerEnter={() => setSelectorOpen(false)}
       >
         <div className="toolbar">
-          <div className="segmented">
+          <div className="archive-toolbar-segmented-control">
+            <div className="segmented segmented--range-preset">
               {RANGE_PRESETS.map((preset) => (
-              <button key={preset.id} type="button" onClick={() => onRangeChange(createRange(preset.hours))}>
+                <button
+                  key={preset.id}
+                  type="button"
+                  className={preset.id === selectedRangePresetId ? 'segmented__button--active' : undefined}
+                  onClick={() => {
+                    setSelectedRangePresetId(preset.id);
+                    onRangeChange(createRange(preset.hours));
+                  }}
+                >
                   {preset.label}
                 </button>
               ))}
             </div>
+          </div>
           <div className="archive-date-range">
             <span>С</span>
             <DateRangeField
@@ -250,11 +265,13 @@ export function ArchiveView({
               onChange={(value) => updateRangePart('to', 'time', value)}
             />
           </div>
+          <HistoryChartAvgLineModeControl value={avgLineMode} onChange={setAvgLineMode} />
         </div>
 
         {selectedTags.length ? (
           <HistoryChart
-            key={`${range.from}:${range.to}:${historyAxis.granulate}`}
+            key={`${range.from}:${range.to}:${historyAxis.granulate}:${historyAxis.tickIntervalMs ?? ''}`}
+            avgLineMode={avgLineMode}
             edge={edgeId}
             from={fromIso}
             to={toIso}

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/HistoryChart.tsx

@@ -1,12 +1,22 @@
 import { useCallback, useEffect, useMemo, useRef, useState } from 'react';
-import { getHistoryGranularity, type HistoryAxisLabelFormat } from '../../utils/historyGranularity';
+import type { EChartsOption } from 'echarts';
-import type { DataZoomEventBatch, DataZoomState, HistoryZoomRange } from './chartTypes';
+import { parseGranulateMs, type HistoryAxisLabelFormat } from '../../utils/historyGranularity';
+import type { AvgLineMode, DataZoomEventBatch, HistoryZoomRange } from './chartTypes';
 import { HistoryChartArea } from './HistoryChartArea';
 import { createHistoryChartOptions } from './historyChartOptions';
+import {
+  createDataZoomState,
+  createInitialZoomRange,
+  getZoomRangeFromEvent,
+  isSameZoomRange,
+  isXAxisDataZoom,
+  ZOOM_REQUEST_DELAY_MS,
+} from './historyChartZoom';
 import { useHistoryChartQueries } from './useHistoryChartQueries';
 import { useHistoryChartSeries } from './useHistoryChartSeries';
 
 type HistoryChartProps = {
+  avgLineMode: AvgLineMode;
   edge: string;
   from: string;
   granulate: string;
@@ -17,109 +27,23 @@ type HistoryChartProps = {
   tagLabels?: Record<string, string>;
 };
 
-const ZOOM_REQUEST_DELAY_MS = 350;
+const DAY_MS = 24 * 60 * 60 * 1000;
 
-function isXAxisDataZoom(state: DataZoomState): boolean {
+/** Определяет видимость соединительной avg-линии с учетом ручного режима и масштаба X-шкалы. */
-  return state.dataZoomId?.startsWith('history-x-') || state.dataZoomIndex === 0 || state.dataZoomIndex === 1;
+function shouldShowAvgLine(mode: AvgLineMode, range: HistoryZoomRange): boolean {
+  if (mode === 'show') {
+    return true;
   }
 
-/** Собирает начальный zoom-диапазон из внешних props графика. */
+  if (mode === 'hide') {
-function createInitialZoomRange({
+    return false;
-  from,
-  granulate,
-  labelFormat,
-  tickIntervalMs,
-  to,
-}: Pick<HistoryChartProps, 'from' | 'granulate' | 'labelFormat' | 'tickIntervalMs' | 'to'>): HistoryZoomRange {
-  return { from, to, granulate, labelFormat, tickIntervalMs };
   }
 
-/** Создает zoom-диапазон из миллисекунд и подбирает для него грануляцию. */
+  return (range.tickIntervalMs ?? parseGranulateMs(range.granulate)) < DAY_MS;
-function createZoomRange(fromMs: number, toMs: number): HistoryZoomRange {
-  const from = new Date(fromMs).toISOString();
-  const to = new Date(toMs).toISOString();
-
-  return {
-    from,
-    to,
-    ...getHistoryGranularity(from, to),
-  };
-}
-
-/** Достает подинтервал X-зума из события ECharts. */
-function getZoomRangeFromEvent(state: DataZoomState, baseRange: HistoryZoomRange): HistoryZoomRange | null {
-  const baseFromMs = new Date(baseRange.from).getTime();
-  const baseToMs = new Date(baseRange.to).getTime();
-  const baseSpanMs = baseToMs - baseFromMs;
-
-  if (!Number.isFinite(baseFromMs) || !Number.isFinite(baseToMs) || baseSpanMs <= 0) {
-    return null;
-  }
-
-  const startValue = Number(state.startValue);
-  const endValue = Number(state.endValue);
-  let nextFromMs = Number.isFinite(startValue) ? startValue : undefined;
-  let nextToMs = Number.isFinite(endValue) ? endValue : undefined;
-  
-  // ECharts иногда не передает startValue/endValue, поэтому используем start/end.
-  if (nextFromMs === undefined || nextToMs === undefined) {
-    const start = Number(state.start);
-    const end = Number(state.end);
-
-    if (!Number.isFinite(start) || !Number.isFinite(end)) {
-      return null;
-    }
-
-    nextFromMs = baseFromMs + (baseSpanMs * start) / 100;
-    nextToMs = baseFromMs + (baseSpanMs * end) / 100;
-  }
-
-  // Проверка на выход из диапазона 
-  const fromMs = Math.max(baseFromMs, Math.min(nextFromMs, nextToMs));
-  const toMs = Math.min(baseToMs, Math.max(nextFromMs, nextToMs));
-
-  return toMs > fromMs ? createZoomRange(fromMs, toMs) : null;
-}
-
-/** Проверяет, что lazy zoom не пытается повторно применить тот же диапазон. */
-function isSameZoomRange(left: HistoryZoomRange, right: HistoryZoomRange): boolean {
-  return left.from === right.from && left.to === right.to && left.granulate === right.granulate;
-}
-
-/** Вычисляет, какую часть верхнеуровневого периода занимает текущий пользовательский zoom. */
-function createDataZoomState(baseRange: HistoryZoomRange, zoomRange: HistoryZoomRange): DataZoomState {
-  // Верхнеуровневый период берём из инпутов "С/По" и считаем его полными 0..100%.
-  const baseFromMs = new Date(baseRange.from).getTime();
-  const baseToMs = new Date(baseRange.to).getTime();
-
-  // Пользовательский zoom живёт внутри верхнеуровневого периода и должен быть выделен на нижней шкале.
-  const zoomFromMs = new Date(zoomRange.from).getTime();
-  const zoomToMs = new Date(zoomRange.to).getTime();
-  const baseSpanMs = baseToMs - baseFromMs;
-
-  // Если даты некорректны, показываем весь период, чтобы не ломать управление графиком.
-  if (
-    !Number.isFinite(baseFromMs) ||
-    !Number.isFinite(baseToMs) ||
-    !Number.isFinite(zoomFromMs) ||
-    !Number.isFinite(zoomToMs) ||
-    baseSpanMs <= 0
-  ) {
-    return { start: 0, end: 100 };
-  }
-
-  // Переводим абсолютные даты zoom-а в проценты относительно верхнеуровневого периода.
-  const start = ((zoomFromMs - baseFromMs) / baseSpanMs) * 100;
-  const end = ((zoomToMs - baseFromMs) / baseSpanMs) * 100;
-
-  // Ограничиваем значения диапазоном 0..100, чтобы ECharts не получил выход за шкалу.
-  return {
-    start: Math.max(0, Math.min(100, start)),
-    end: Math.max(0, Math.min(100, end)),
-  };
 }
 
 export function HistoryChart({
+  avgLineMode,
   edge,
   from,
   granulate,
@@ -139,6 +63,7 @@ export function HistoryChart({
   const baseRangeRef = useRef(baseRange);
   const zoomRangeRef = useRef(zoomRange);
   const zoomTimerRef = useRef<ReturnType<typeof setTimeout> | null>(null);
+  const lastReadyOptionRef = useRef<EChartsOption | null>(null);
   const lines = useHistoryChartQueries({
     edge,
     from: zoomRange.from,
@@ -147,9 +72,11 @@ export function HistoryChart({
     to: zoomRange.to,
     tagLabels,
   });
-  const series = useHistoryChartSeries(lines, zoomRange.granulate);
+  const showAvgLine = shouldShowAvgLine(avgLineMode, zoomRange);
+  const series = useHistoryChartSeries(lines, zoomRange.granulate, avgLineMode, showAvgLine);
   const legendData = useMemo(() => lines.map((line) => line.label), [lines]);
   const loading = lines.some((line) => line.loading);
+  const hasData = series.length > 0;
 
   useEffect(() => {
     baseRangeRef.current = baseRange;
@@ -184,6 +111,18 @@ export function HistoryChart({
     [baseRange, legendData, series, zoomRange],
   );
 
+  // Во время lazy-загрузки нового zoom-диапазона оставляем на экране последний готовый график.
+  // Так canvas не заменяется loader-ом и пользователь не теряет визуальный контекст.
+  const fallbackOption = loading && !hasData ? lastReadyOptionRef.current : null;
+  const displayOption = fallbackOption ?? option;
+  const displayHasData = hasData || Boolean(fallbackOption);
+
+  useEffect(() => {
+    if (hasData) {
+      lastReadyOptionRef.current = option;
+    }
+  }, [hasData, option]);
+
   const handleDataZoom = useCallback((event: DataZoomEventBatch) => {
     const state = (event.batch ?? [event]).find(isXAxisDataZoom);
 
@@ -211,10 +150,11 @@ export function HistoryChart({
 
   return (
     <HistoryChartArea
-      hasData={series.length > 0}
+      avgLineMode={avgLineMode}
+      hasData={displayHasData}
       hasSelection={tags.length > 0}
       loading={loading}
-      option={option}
+      option={displayOption}
       onDataZoom={handleDataZoom}
     />
   );

src/features/history-chart/HistoryChartArea.tsx

@@ -1,10 +1,13 @@
 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';
+import type { AvgLineMode } from './chartTypes';
 
 type HistoryChartAreaProps = {
+  avgLineMode: AvgLineMode;
   hasData: boolean;
   hasSelection: boolean;
   loading: boolean;
@@ -12,26 +15,85 @@ 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({
+  avgLineMode,
   hasData,
   hasSelection,
   loading,
   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>;
   }
 
-  if (loading) {
+  if (!hasData && loading) {
     return <div className="chart-placeholder">Загрузка графика...</div>;
   }
 
@@ -39,5 +101,17 @@ 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
+        key={avgLineMode}
+        ref={chartRef}
+        echarts={echarts}
+        option={option}
+        className="history-chart"
+        onEvents={onChartEvents}
+        lazyUpdate
+      />
+    </div>
+  );
 }

src/features/history-chart/HistoryChartAvgLineModeControl.tsx

@@ -0,0 +1,33 @@
+import type { AvgLineMode } from './chartTypes';
+
+type HistoryChartAvgLineModeControlProps = {
+  value: AvgLineMode;
+  onChange: (mode: AvgLineMode) => void;
+};
+
+const AVG_LINE_MODES: Array<{ value: AvgLineMode; label: string }> = [
+  { value: 'auto', label: 'Авто' },
+  { value: 'show', label: 'Рисовать' },
+  { value: 'hide', label: 'Скрывать' },
+];
+
+export function HistoryChartAvgLineModeControl({ value, onChange }: HistoryChartAvgLineModeControlProps) {
+  return (
+    <div className="archive-toolbar-segmented-control archive-avgline-mode-control" aria-label="Режим соединительной линии avg">
+      <span>Соединительная линия</span>
+      <div className="segmented history-chart-line-mode">
+        {AVG_LINE_MODES.map((mode) => (
+          <button
+            key={mode.value}
+            type="button"
+            className={mode.value === value ? 'segmented__button--active' : undefined}
+            onClick={() => onChange(mode.value)}
+            aria-pressed={mode.value === value}
+          >
+            {mode.label}
+          </button>
+        ))}
+      </div>
+    </div>
+  );
+}

src/features/history-chart/chartTypes.ts

@@ -1,8 +1,17 @@
 import type { HistoryAxisLabelFormat } from '../../utils/historyGranularity';
 
-export type AvgPointValue = [time: number, avg: number, min: number, max: number, count: number];
+export type AvgPointValue = [time: number, avg: number, min: number, max: number, count: number, slotMs?: number];
 
-export type HistoryBucketValue = [...AvgPointValue, slotMs: number];
+export type HistoryBucketValue = [
+  time: number,
+  avg: number,
+  min: number,
+  max: number,
+  count: number,
+  slotMs: number,
+];
+
+export type AvgLineMode = 'auto' | 'show' | 'hide';
 
 export type HistoryZoomRange = {
   from: string;

src/features/history-chart/historyChartAvgLineSeries.ts

@@ -0,0 +1,92 @@
+import type { LineSeriesOption, SeriesOption } from 'echarts';
+import type { HistoryPoint } from '../../entities/history/types';
+import { parseGranulateMs } from '../../utils/historyGranularity';
+import { SERIES_COLORS } from './historyChartSeries';
+
+type AvgLineSeriesValue = [time: number, avg: number, min: number, max: number, count: number, slotMs: number];
+type AvgLineSeriesPoint = AvgLineSeriesValue | null;
+
+function isFinitePoint(point: HistoryPoint): boolean {
+  return [point.avg_value, point.min_value, point.max_value].every(Number.isFinite);
+}
+
+function createAvgLineData(points: HistoryPoint[], granulate: string, breakOnGaps: boolean): AvgLineSeriesPoint[] {
+  const slotMs = parseGranulateMs(granulate);
+  const finitePoints = points.filter(isFinitePoint);
+
+  if (!breakOnGaps) {
+    return finitePoints.map((point) => [
+      new Date(point.time).getTime(),
+      point.avg_value,
+      point.min_value,
+      point.max_value,
+      point.point_count,
+      slotMs,
+    ]);
+  }
+
+  return finitePoints.flatMap((point, index) => {
+    const currentTime = new Date(point.time).getTime();
+    const currentPoint: AvgLineSeriesValue = [
+      currentTime,
+      point.avg_value,
+      point.min_value,
+      point.max_value,
+      point.point_count,
+      slotMs,
+    ];
+
+    if (index === 0) {
+      return [currentPoint];
+    }
+
+    const previousTime = new Date(finitePoints[index - 1].time).getTime();
+    const hasAcceptableGap = currentTime - previousTime <= slotMs * 50;
+
+    return hasAcceptableGap ? [currentPoint] : [null, currentPoint];
+  });
+}
+
+export function createAvgLineSeries(
+  points: HistoryPoint[],
+  index: number,
+  label: string,
+  granulate: string,
+  showAvgLine: boolean,
+  breakOnGaps: boolean,
+): SeriesOption[] {
+  if (!showAvgLine) {
+    return [];
+  }
+
+  const color = SERIES_COLORS[index % SERIES_COLORS.length];
+
+  return [
+    {
+      name: `${label} avg-line`,
+      type: 'line',
+      data: createAvgLineData(points, granulate, breakOnGaps),
+      encode: {
+        x: 0,
+        y: 1,
+      },
+      smooth: true,
+      connectNulls: false,
+      showSymbol: false,
+      symbol: 'none',
+      silent: true,
+      tooltip: {
+        show: false,
+      },
+      lineStyle: {
+        color,
+        width: 1.5,
+        opacity: 0.78,
+      },
+      emphasis: {
+        disabled: true,
+      },
+      z: 4,
+    } as LineSeriesOption,
+  ];
+}

src/features/history-chart/historyChartEcharts.ts

@@ -1,4 +1,4 @@
-import { CustomChart } from 'echarts/charts';
+import { CustomChart, LineChart } from 'echarts/charts';
 import {
   DataZoomComponent,
   GridComponent,
@@ -10,6 +10,7 @@ import { CanvasRenderer } from 'echarts/renderers';
 
 echarts.use([
   CustomChart,
+  LineChart,
   GridComponent,
   LegendComponent,
   TooltipComponent,

src/features/history-chart/historyChartFormat.ts

@@ -56,10 +56,67 @@ export function formatAxisDate(value: number, labelFormat: HistoryAxisLabelForma
 
 function formatChartValue(value: number): string {
   return new Intl.NumberFormat('ru-RU', {
-    maximumFractionDigits: Math.abs(value) >= 100 ? 2 : 3,
+    maximumFractionDigits:
+      Math.abs(value) >= 1000 ? 0
+      : Math.abs(value) >= 100 ? 1
+      : Math.abs(value) >= 10 ? 2
+      : Math.abs(value) >= 1 ? 3
+      : 4,
   }).format(value);
 }
 
+/** Форматирует полную дату и время для начала/конца интервала в tooltip. */
+function formatTooltipDateTime(value: number): string {
+  return new Intl.DateTimeFormat('ru-RU', {
+    day: '2-digit',
+    month: '2-digit',
+    year: 'numeric',
+    hour: '2-digit',
+    minute: '2-digit',
+    second: '2-digit',
+  }).format(new Date(value));
+}
+
+/** Форматирует только время, когда конец интервала находится в тот же день. */
+function formatTooltipTime(value: number): string {
+  return new Intl.DateTimeFormat('ru-RU', {
+    hour: '2-digit',
+    minute: '2-digit',
+    second: '2-digit',
+  }).format(new Date(value));
+}
+
+/** Проверяет, можно ли показать конец интервала без повторения даты. */
+function isSameDate(first: number, second: number): boolean {
+  const firstDate = new Date(first);
+  const secondDate = new Date(second);
+
+  return (
+    firstDate.getFullYear() === secondDate.getFullYear()
+    && firstDate.getMonth() === secondDate.getMonth()
+    && firstDate.getDate() === secondDate.getDate()
+  );
+}
+
+/** Показывает bucket графика как интервал текущей грануляции, а не как одну точку времени. */
+function formatTooltipInterval(value: AvgPointValue): string {
+  const time = value[0];
+  const slotMs = value[5];
+
+  if (!slotMs) {
+    return formatTooltipDateTime(time);
+  }
+
+  const from = time - slotMs / 2;
+  const to = time + slotMs / 2;
+
+  if (isSameDate(from, to)) {
+    return `${formatTooltipDateTime(from)} — ${formatTooltipTime(to)}`;
+  }
+
+  return `${formatTooltipDateTime(from)} — ${formatTooltipDateTime(to)}`;
+}
+
 /** Форматирует значение tooltip: одно число для min=avg=max или среднее с диапазоном. */
 function formatTooltipValue(value: AvgPointValue): string {
   const avg = formatChartValue(value[1]);
@@ -89,14 +146,8 @@ export function formatTooltip(params: unknown): string {
     return '';
   }
 
-  const header = new Intl.DateTimeFormat('ru-RU', {
+  const time = firstValue[0];
-    day: '2-digit',
+  const header = formatTooltipDateTime(time);
-    month: '2-digit',
-    year: 'numeric',
-    hour: '2-digit',
-    minute: '2-digit',
-    second: '2-digit',
-  }).format(new Date(firstValue[0]));
 
   const rows = avgItems.map((item) => {
     const value = item.value as AvgPointValue;
@@ -104,8 +155,7 @@ export function formatTooltip(params: unknown): string {
       '<div class="chart-tooltip-row">',
       `<span class="chart-tooltip-label" style="--chart-tooltip-marker-color:${item.color ?? 'currentColor'};">${item.seriesName ?? ''}</span>`,
       '<strong>',
-      formatTooltipValue(value),
+      formatChartValue(value[1]),
-      value[4] > 1 ? ` · ${value[4]} точек` : '',
       '</strong>',
       '</div>',
     ].join('');

src/features/history-chart/historyChartSeries.ts

@@ -20,6 +20,15 @@ export const SERIES_COLORS = [
   '#A7B3FF',
 ];
 
+const BUCKET = {
+  time: 0,
+  avg: 1,
+  min: 2,
+  max: 3,
+  count: 4,
+  slotMs: 5,
+} as const;
+
 type CartesianCoordSys = {
   x: number;
   y: number;
@@ -27,13 +36,44 @@ type CartesianCoordSys = {
   height: number;
 };
 
+type ChartArea = CartesianCoordSys;
+
+type BucketValues = {
+  time: number;
+  avg: number;
+  min: number;
+  max: number;
+  slotMs: number;
+};
+
+/** Ограничивает число заданными границами, чтобы фигуры не выходили за canvas графика. */
+function clamp(value: number, min: number, max: number): number {
+  return Math.min(max, Math.max(min, value));
+}
+
+/** Создает вертикальный градиент min..max с максимальной яркостью в позиции avg. */
+function createAvgGradientStops(color: string, avgOffset: number) {
+  const softZone = 0.18;
+
+  return [
+    { offset: 0, color: `${color}00` },
+    { offset: clamp(avgOffset - softZone, 0, 1), color: `${color}22` },
+    { offset: avgOffset, color: `${color}70` },
+    { offset: clamp(avgOffset + softZone, 0, 1), color: `${color}22` },
+    { offset: 1, color: `${color}00` },
+  ].sort((first, second) => first.offset - second.offset);
+}
+
+/** Проверяет, что точку можно безопасно отрисовать на графике. */
 function isFinitePoint(point: HistoryPoint): boolean {
   return [point.avg_value, point.min_value, point.max_value].every(Number.isFinite);
 }
 
-/** Упаковывает один bucket API в компактный tuple для custom series ECharts. */
+/** Упаковывает bucket в tuple для custom series ECharts. */
 function createBucketData(points: HistoryPoint[], slotMs: number): HistoryBucketValue[] {
-  return points.filter(isFinitePoint).map((point) => [
+  const finitePoints = points.filter(isFinitePoint);
+
+  return finitePoints.map((point) => [
       new Date(point.time).getTime(),
       point.avg_value,
       point.min_value,
@@ -43,89 +83,108 @@ function createBucketData(points: HistoryPoint[], slotMs: number): HistoryBucket
     ]);
 }
 
-/** Рисует один bucket как временной слот: затухающий min..max и яркий маркер avg. */
+/** Читает tuple bucket-а из ECharts API и возвращает значения с понятными именами. */
-function renderBucket(color: string) {
+function readBucketValues(api: CustomSeriesRenderItemAPI): BucketValues {
-  return (params: CustomSeriesRenderItemParams, api: CustomSeriesRenderItemAPI): CustomSeriesRenderItemReturn => {
+  return {
-    const time = Number(api.value(0));
+    time: Number(api.value(BUCKET.time)),
-    const avg = Number(api.value(1));
+    avg: Number(api.value(BUCKET.avg)),
-    const min = Number(api.value(2));
+    min: Number(api.value(BUCKET.min)),
-    const max = Number(api.value(3));
+    max: Number(api.value(BUCKET.max)),
-    const slotMs = Number(api.value(5));
+    slotMs: Number(api.value(BUCKET.slotMs)),
+  };
+}
 
-    // ECharts отдает размеры области графика в runtime, но в публичных типах
+/** Считает пиксельные фигуры одного bucket-а и обрезает их по области графика. */
-    // они не описаны. Поэтому держим cast локально рядом с clipping-логикой.
+function createBucketShapes(api: CustomSeriesRenderItemAPI, values: BucketValues, chartArea: ChartArea) {
-    const coordSys = params.coordSys as unknown as CartesianCoordSys;
+  const avgPoint = api.coord([values.time, values.avg]);
+  const minPoint = api.coord([values.time, values.min]);
+  const maxPoint = api.coord([values.time, values.max]);
+  const slotStart = api.coord([values.time - values.slotMs / 2, values.avg]);
+  const slotEnd = api.coord([values.time + values.slotMs / 2, values.avg]);
 
-    // Переводим координаты данных (time/value) в пиксели canvas.
-    const avgPoint = api.coord([time, avg]);
-    const minPoint = api.coord([time, min]);
-    const maxPoint = api.coord([time, max]);
-    const slotStart = api.coord([time - slotMs / 2, avg]);
-    const slotEnd = api.coord([time + slotMs / 2, avg]);
-
-    // Слот занимает один интервал грануляции по X и диапазон min..max по Y.
   const x = Math.min(slotStart[0], slotEnd[0]);
   const rawHeight = Math.abs(maxPoint[1] - minPoint[1]);
   const width = Math.max(2, Math.abs(slotEnd[0] - slotStart[0]));
   const height = Math.max(2, rawHeight);
   const y = Math.min(minPoint[1], maxPoint[1]) - (height - rawHeight) / 2;
   const avgY = avgPoint[1];
-    const chartArea = { x: coordSys.x, y: coordSys.y, width: coordSys.width, height: coordSys.height };
 
-    // Обрезаем фигуры, чтобы при Y-зуме они не выходили за область графика.
+  const rangeShape = graphic.clipRectByRect({ x, y, width, height }, chartArea);
-    const rangeShape = graphic.clipRectByRect(
+  const avgShape = graphic.clipRectByRect({ x, y: avgY - 1, width, height: 2 }, chartArea);
-      { x, y, width, height },
-      chartArea,
-    );
-    const avgShape = graphic.clipRectByRect(
-      { x, y: avgY - 1, width, height: 2 },
-      chartArea,
-    );
 
   if (!rangeShape) {
     return null;
   }
 
+  return {
+    avgPoint,
+    avgShape,
+    avgY,
+    rangeShape,
+  };
+}
+
+/** Рисует один bucket: min..max слот и горизонтальный avg-маркер. */
+function renderBucket(color: string) {
+  return (params: CustomSeriesRenderItemParams, api: CustomSeriesRenderItemAPI): CustomSeriesRenderItemReturn => {
+    const values = readBucketValues(api);
+
+    // ECharts отдает размеры области графика в runtime, но в публичных типах они не описаны.
+    const chartArea = params.coordSys as unknown as ChartArea;
+    const bucketShapes = createBucketShapes(api, values, chartArea);
+
+    if (!bucketShapes) {
+      return null;
+    }
+
+    const avgOffset = clamp(
+      (bucketShapes.avgY - bucketShapes.rangeShape.y) / bucketShapes.rangeShape.height,
+      0,
+      1,
+    );
+
     return {
       type: 'group',
       children: [
         {
           type: 'rect',
-          shape: rangeShape,
+          shape: bucketShapes.rangeShape,
           style: {
-            fill: new graphic.LinearGradient(0, 0, 0, 1, [
+            fill: new graphic.LinearGradient(0, 0, 0, 1, createAvgGradientStops(color, avgOffset)),
-              { offset: 0, color: `${color}00` },
-              { offset: 0.5, color: `${color}66` },
-              { offset: 1, color: `${color}00` },
-            ]),
           },
         },
-        ...(avgShape ? [{
+        ...(bucketShapes.avgShape
+          ? [{
               type: 'rect' as const,
-          shape: avgShape,
+              shape: bucketShapes.avgShape,
               style: {
                 fill: color,
               },
-        }] : []),
+            }]
+          : []),
       ],
     };
   };
 }
 
-/** Создает отдельный временной слот min..max с акцентом на avg для каждой точки history. */
+/** Создает bucket-серию на тег: min..max слот и горизонтальный avg-маркер. */
-export function createSeriesOptions(points: HistoryPoint[], index: number, label: string, granulate: string): SeriesOption[] {
+export function createSeriesOptions(
+  points: HistoryPoint[],
+  index: number,
+  label: string,
+  granulate: string,
+): SeriesOption[] {
   const color = SERIES_COLORS[index % SERIES_COLORS.length];
-  const data = createBucketData(points, parseGranulateMs(granulate));
 
   return [
     {
       name: label,
       type: 'custom',
-      data,
+      data: createBucketData(points, parseGranulateMs(granulate)),
       renderItem: renderBucket(color),
       encode: {
-        x: 0,
+        x: BUCKET.time,
-        y: [1, 2, 3],
+        y: [BUCKET.avg, BUCKET.min, BUCKET.max],
       },
       itemStyle: {
         color,

src/features/history-chart/historyChartZoom.ts

@@ -0,0 +1,97 @@
+import { getHistoryGranularity } from '../../utils/historyGranularity';
+import type { DataZoomState, HistoryZoomRange } from './chartTypes';
+
+export const ZOOM_REQUEST_DELAY_MS = 180;
+
+export function isXAxisDataZoom(state: DataZoomState): boolean {
+  return state.dataZoomId?.startsWith('history-x-') || state.dataZoomIndex === 0 || state.dataZoomIndex === 1;
+}
+
+/** Собирает начальный zoom-диапазон из внешних props графика. */
+export function createInitialZoomRange(range: HistoryZoomRange): HistoryZoomRange {
+  return range;
+}
+
+/** Создает zoom-диапазон из миллисекунд и подбирает для него грануляцию. */
+function createZoomRange(fromMs: number, toMs: number): HistoryZoomRange {
+  const from = new Date(fromMs).toISOString();
+  const to = new Date(toMs).toISOString();
+
+  return {
+    from,
+    to,
+    ...getHistoryGranularity(from, to),
+  };
+}
+
+/** Достает подинтервал X-зума из события ECharts. */
+export function getZoomRangeFromEvent(state: DataZoomState, baseRange: HistoryZoomRange): HistoryZoomRange | null {
+  const baseFromMs = new Date(baseRange.from).getTime();
+  const baseToMs = new Date(baseRange.to).getTime();
+  const baseSpanMs = baseToMs - baseFromMs;
+
+  if (!Number.isFinite(baseFromMs) || !Number.isFinite(baseToMs) || baseSpanMs <= 0) {
+    return null;
+  }
+
+  const startValue = Number(state.startValue);
+  const endValue = Number(state.endValue);
+  let nextFromMs = Number.isFinite(startValue) ? startValue : undefined;
+  let nextToMs = Number.isFinite(endValue) ? endValue : undefined;
+
+  // ECharts иногда не передает startValue/endValue, поэтому используем проценты start/end.
+  if (nextFromMs === undefined || nextToMs === undefined) {
+    const start = Number(state.start);
+    const end = Number(state.end);
+
+    if (!Number.isFinite(start) || !Number.isFinite(end)) {
+      return null;
+    }
+
+    nextFromMs = baseFromMs + (baseSpanMs * start) / 100;
+    nextToMs = baseFromMs + (baseSpanMs * end) / 100;
+  }
+
+  const fromMs = Math.max(baseFromMs, Math.min(nextFromMs, nextToMs));
+  const toMs = Math.min(baseToMs, Math.max(nextFromMs, nextToMs));
+
+  return toMs > fromMs ? createZoomRange(fromMs, toMs) : null;
+}
+
+/** Проверяет, что lazy zoom не пытается повторно применить тот же диапазон. */
+export function isSameZoomRange(left: HistoryZoomRange, right: HistoryZoomRange): boolean {
+  return left.from === right.from && left.to === right.to && left.granulate === right.granulate;
+}
+
+/** Вычисляет, какую часть верхнеуровневого периода занимает текущий пользовательский zoom. */
+export function createDataZoomState(baseRange: HistoryZoomRange, zoomRange: HistoryZoomRange): DataZoomState {
+  // Верхнеуровневый период берем из инпутов "С/По" и считаем его полными 0..100%.
+  const baseFromMs = new Date(baseRange.from).getTime();
+  const baseToMs = new Date(baseRange.to).getTime();
+
+  // Пользовательский zoom живет внутри верхнеуровневого периода и выделяется на нижней шкале.
+  const zoomFromMs = new Date(zoomRange.from).getTime();
+  const zoomToMs = new Date(zoomRange.to).getTime();
+  const baseSpanMs = baseToMs - baseFromMs;
+
+  // Если даты некорректны, показываем весь период, чтобы не ломать управление графиком.
+  if (
+    !Number.isFinite(baseFromMs) ||
+    !Number.isFinite(baseToMs) ||
+    !Number.isFinite(zoomFromMs) ||
+    !Number.isFinite(zoomToMs) ||
+    baseSpanMs <= 0
+  ) {
+    return { start: 0, end: 100 };
+  }
+
+  // Переводим абсолютные даты zoom-а в проценты относительно верхнеуровневого периода.
+  const start = ((zoomFromMs - baseFromMs) / baseSpanMs) * 100;
+  const end = ((zoomToMs - baseFromMs) / baseSpanMs) * 100;
+
+  // Ограничиваем значения диапазоном 0..100, чтобы ECharts не получил выход за шкалу.
+  return {
+    start: Math.max(0, Math.min(100, start)),
+    end: Math.max(0, Math.min(100, end)),
+  };
+}

src/features/history-chart/useHistoryChartQueries.ts

@@ -1,5 +1,5 @@
 import { useMemo } from 'react';
-import { useQueries } from '@tanstack/react-query';
+import { keepPreviousData, useQueries } from '@tanstack/react-query';
 import { getHistory } from '../../entities/history/api';
 import type { HistoryPoint } from '../../entities/history/types';
 
@@ -35,6 +35,7 @@ export function useHistoryChartQueries({
       queryKey: ['history', edge, tag, from, to, granulate],
       queryFn: ({ signal }: { signal: AbortSignal }) => getHistory({ edge, tag, from, to, granulate }, signal),
       enabled,
+      placeholderData: keepPreviousData,
     })),
   });
 

src/features/history-chart/useHistoryChartSeries.ts

@@ -1,14 +1,26 @@
 import { useMemo } from 'react';
 import type { SeriesOption } from 'echarts';
+import { createAvgLineSeries } from './historyChartAvgLineSeries';
 import { createSeriesOptions } from './historyChartSeries';
 import type { HistoryChartLineData } from './useHistoryChartQueries';
+import type { AvgLineMode } from './chartTypes';
 
-export function useHistoryChartSeries(lines: HistoryChartLineData[], granulate: string): SeriesOption[] {
+export function useHistoryChartSeries(
+  lines: HistoryChartLineData[],
+  granulate: string,
+  avgLineMode: AvgLineMode,
+  showAvgLine: boolean,
+): SeriesOption[] {
   return useMemo(
     () =>
       lines.flatMap((line) =>
-        line.rows.length ? createSeriesOptions(line.rows, line.index, line.label, granulate) : [],
+        line.rows.length
+          ? [
+              ...createSeriesOptions(line.rows, line.index, line.label, granulate),
+              ...createAvgLineSeries(line.rows, line.index, line.label, granulate, showAvgLine, avgLineMode === 'auto'),
+            ]
+          : [],
       ),
-    [granulate, lines],
+    [granulate, lines, showAvgLine, avgLineMode],
   );
 }

src/styles/charts.css

@@ -1,8 +1,66 @@
+.history-chart-shell,
 .history-chart {
   width: 100%;
   height: 440px;
 }
 
+.history-chart-shell .history-chart {
+  height: 100%;
+}
+
+.history-chart-shell {
+  position: relative;
+}
+
+.history-chart-controls {
+  position: absolute;
+  top: 8px;
+  right: 12px;
+  z-index: 2;
+  display: flex;
+  align-items: center;
+  gap: 8px;
+  color: var(--muted);
+  font-size: 12px;
+}
+
+.history-chart-line-mode {
+  padding: 3px;
+}
+
+.archive-avgline-mode-control .history-chart-line-mode button {
+  border-radius: 0;
+}
+
+.archive-avgline-mode-control .history-chart-line-mode button:first-child {
+  border-top-left-radius: var(--radius);
+  border-bottom-left-radius: var(--radius);
+}
+
+.archive-avgline-mode-control .history-chart-line-mode button:last-child {
+  border-top-right-radius: var(--radius);
+  border-bottom-right-radius: var(--radius);
+}
+
+.segmented--range-preset button {
+  border-radius: 0;
+}
+
+.segmented--range-preset button:first-child {
+  border-top-left-radius: var(--radius);
+  border-bottom-left-radius: var(--radius);
+}
+
+.segmented--range-preset button:last-child {
+  border-top-right-radius: var(--radius);
+  border-bottom-right-radius: var(--radius);
+}
+
+.history-chart-line-mode button {
+  font-size: inherit;
+}
+
+.chart-section--archive .history-chart-shell,
 .chart-section--archive .history-chart {
   flex: 1;
   min-height: 520px;
@@ -18,10 +76,6 @@
   border-radius: var(--radius);
 }
 
-.chart-tooltip {
-  min-width: 240px;
-}
-
 .chart-tooltip-title {
   margin-bottom: 8px;
   color: #e5e7eb;
@@ -30,7 +84,7 @@
 
 .chart-tooltip-row {
   display: grid;
-  grid-template-columns: minmax(90px, 1fr) auto;
+  grid-template-columns: 1fr auto;
   align-items: center;
   gap: 14px;
   margin-top: 5px;
@@ -67,6 +121,7 @@
 }
 
 @media (max-width: 680px) {
+  .chart-section--archive .history-chart-shell,
   .chart-section--archive .history-chart,
   .chart-section--archive .chart-placeholder {
     min-height: 420px;

src/styles/components/controls.css

@@ -73,6 +73,12 @@
   background: rgba(201, 122, 61, 0.18);
 }
 
+.segmented__button--active {
+  border-color: rgba(212, 165, 116, 0.34);
+  background: rgba(201, 122, 61, 0.14);
+  color: #f8fafc;
+}
+
 .source-chip,
 .status-pill,
 .metric-card__state {

src/styles/components/metrics.css

@@ -15,7 +15,7 @@
   height: 100%;
   display: flex;
   flex-direction: column;
-  gap: 10px;
+  gap: 5px;
   padding: 12px;
   border: 1px solid rgba(88, 103, 121, 0.42);
   border-radius: 8px;
@@ -27,28 +27,74 @@
     0 6px 14px rgba(0, 0, 0, 0.28);
 }
 
-.metric-widget__tag {
+.metric-widget__id,
-  flex: 0 0 auto;
+.metric-widget__name,
+.metric-widget__reading,
+.metric-widget__value {
   min-width: 0;
-  color: #cbd5e1;
+}
-  font-size: 0.74rem;
+
-  font-weight: 600;
+.metric-widget__id,
+.metric-widget__name {
+  display: block;
+  overflow: hidden;
+  text-overflow: ellipsis;
+}
+
+.metric-widget__id {
+  flex: 0 0 auto;
+  color: #64748b;
+  font-size: 0.62rem;
+  font-weight: 650;
+  letter-spacing: 0.02em;
+  line-height: 1.2;
+  white-space: nowrap;
+}
+
+.metric-widget__name {
+  flex: 0 0 auto;
+  color: #e5e7eb;
+  font-size: 0.82rem;
+  font-weight: 760;
   line-height: 1.35;
   white-space: normal;
   overflow-wrap: anywhere;
   word-break: break-word;
 }
 
-.metric-widget__value {
+.metric-widget__reading {
   margin-top: auto;
   align-self: flex-end;
-  min-width: 0;
+  display: inline-flex;
+  align-items: baseline;
+  justify-content: flex-end;
+  gap: 5px;
+  max-width: 100%;
+  text-align: right;
+}
+
+.metric-widget__value {
   color: #f8fafc;
-  font-size: 1.1rem;
+  font-size: 1.22rem;
-  font-weight: 700;
+  font-weight: 800;
   font-variant-numeric: tabular-nums;
   line-height: 1.2;
+  overflow: hidden;
   text-align: right;
+  text-overflow: ellipsis;
+  white-space: nowrap;
+}
+
+.metric-widget__unit {
+  flex: 0 1 auto;
+  min-width: 0;
+  color: #94a3b8;
+  font-size: 0.72rem;
+  font-weight: 650;
+  line-height: 1.2;
+  overflow: hidden;
+  text-overflow: ellipsis;
+  white-space: nowrap;
 }
 
 .metric-mosaic {

src/styles/detail/archive.css

@@ -216,6 +216,14 @@
   font-size: 0.84rem;
 }
 
+.archive-toolbar-segmented-control {
+  display: inline-flex;
+  align-items: center;
+  gap: 8px;
+  color: var(--muted);
+  font-size: 0.84rem;
+}
+
 .archive-date-input {
   color-scheme: dark;
   min-height: 36px;

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 };

vite.config.ts

@@ -15,7 +15,6 @@ export default defineConfig(({ mode }) => {
         '/api': {
           target: DEV_API_URL,
           changeOrigin: true,
-          rewrite: (path) => path.replace(/^\/api/, ''),
         },
       },
     },