refactor(UptimeMonitorPage): optimize uptime checks with memoization and update check interval to 2 minutes

frontend/src/UptimeMonitorPage.jsx

@@ -1,4 +1,4 @@
-import { useState, useEffect, useCallback, useRef } from 'react';
+import { useState, useEffect, useCallback, useRef, useMemo } from 'react';
 import api from './lib/api.js';
 import {
   IconClock,
@@ -7,109 +7,30 @@ import {
   IconCircleCheck,
   IconCircleX,
   IconChartLine,
-  IconPlayerPlay,
-  IconPlayerPause,
 } from '@tabler/icons-react';
 import PageHeader from './components/PageHeader.jsx';
-import ServerAutocompleteInput from './components/ServerAutocompleteInput.jsx';
 import { formatRelative } from './lib/datetime.js';
 
-const CHECK_INTERVAL_MS = 60 * 1000; // 1 минута
-const HISTORY_MAX = 300; // храним последние 300 проверок для расчёта доступности
-
-/** Форматирование длительности (секунды → "X days Y hours Z mins") */
-function formatDuration(seconds) {
-  if (seconds == null || seconds < 0 || !Number.isFinite(seconds)) return '—';
-  const d = Math.floor(seconds / 86400);
-  const h = Math.floor((seconds % 86400) / 3600);
-  const m = Math.floor((seconds % 3600) / 60);
-  const s = Math.floor(seconds % 60);
-  const parts = [];
-  if (d > 0) parts.push(`${d} дн`);
-  if (h > 0) parts.push(`${h} ч`);
-  if (m > 0) parts.push(`${m} мин`);
-  if (s > 0 || parts.length === 0) parts.push(`${s} сек`);
-  return parts.join(' ');
-}
-
-/** Считает доступность и инциденты по истории проверок */
-function computeUptimeStats(history) {
-  if (!Array.isArray(history) || history.length === 0) {
-    return { availability: null, incidents: 0, totalDowntimeSec: 0, longestDowntimeSec: 0, avgIncidentSec: 0, upSinceSec: null };
-  }
-  const now = Date.now() / 1000;
-  let upCount = 0;
-  let incidentCount = 0;
-  let totalDowntimeSec = 0;
-  let longestDowntimeSec = 0;
-  let currentDowntimeSec = 0;
-  let lastUpTs = null;
-  let upSinceSec = null;
-
-  for (let i = 0; i < history.length; i++) {
-    const { ts, up } = history[i];
-    const tsSec = ts / 1000;
-    if (up) {
-      upCount++;
-      if (lastUpTs != null && i > 0) {
-        const gap = tsSec - lastUpTs;
-        if (gap > 60) {
-          incidentCount++;
-          totalDowntimeSec += currentDowntimeSec;
-          if (currentDowntimeSec > longestDowntimeSec) longestDowntimeSec = currentDowntimeSec;
-        }
-      }
-      lastUpTs = tsSec;
-      currentDowntimeSec = 0;
-      if (upSinceSec == null) upSinceSec = now - tsSec;
-    } else {
-      if (i > 0) {
-        const prev = history[i - 1];
-        const gap = (ts - prev.ts) / 1000;
-        currentDowntimeSec += gap;
-      }
-    }
-  }
-  if (currentDowntimeSec > 0) {
-    incidentCount++;
-    totalDowntimeSec += currentDowntimeSec;
-    if (currentDowntimeSec > longestDowntimeSec) longestDowntimeSec = currentDowntimeSec;
-  }
-  const total = history.length;
-  const availability = total > 0 ? (upCount / total) * 100 : null;
-  const avgIncidentSec = incidentCount > 0 ? totalDowntimeSec / incidentCount : 0;
-  return {
-    availability,
-    incidents: incidentCount,
-    totalDowntimeSec,
-    longestDowntimeSec,
-    avgIncidentSec,
-    upSinceSec: lastUpTs != null ? upSinceSec : null,
-  };
-}
+const CHECK_INTERVAL_MS = 2 * 60 * 1000; // 2 минуты
+const DELAY_BETWEEN_CHECKS_MS = 1500; // пауза между проверками, чтобы не получить 429
 
 export default function UptimeMonitorPage() {
   const [servers, setServers] = useState([]);
-  const [routerServerId, setRouterServerId] = useState('');
   const [loading, setLoading] = useState(true);
-  const [pinging, setPinging] = useState(false);
+  const [checking, setChecking] = useState(false);
   const [error, setError] = useState(null);
-  /** По каждому target (ip или id): массив { ts, up, ms } */
-  const [historyMap, setHistoryMap] = useState({});
-  /** Выбранная цель для детальной карточки (ip или id) */
-  const [selectedTargetKey, setSelectedTargetKey] = useState(null);
+  /** По serverId: { ok, lastCheckTs } */
+  const [statusMap, setStatusMap] = useState({});
   const intervalRef = useRef(null);
-  const pausedRef = useRef(false);
+  const checkingRef = useRef(false);
 
-  const routerServers = servers.filter(
-    (s) => ['jumphost', 'home'].includes(String(s.type || '').toLowerCase())
+  const jumphosts = useMemo(
+    () =>
+      servers.filter((s) =>
+        ['jumphost', 'home'].includes(String(s.type || '').toLowerCase())
+      ),
+    [servers]
   );
-  const targets = servers.filter((s) => {
-    const ip = s.ip || s.extIp;
-    if (!ip) return false;
-    const id = s.id || s.dns || s.ip;
-    return id !== routerServerId && ip !== routerServerId;
-  });
 
   const fetchServers = useCallback(async () => {
     setLoading(true);
@@ -129,70 +50,40 @@ export default function UptimeMonitorPage() {
     fetchServers();
   }, [fetchServers]);
 
-  const runPings = useCallback(async () => {
-    if (!routerServerId || targets.length === 0) return;
-    setPinging(true);
-    const serverId = routerServerId;
+  const runChecks = useCallback(async () => {
+    if (jumphosts.length === 0) return;
+    if (checkingRef.current) return;
+    checkingRef.current = true;
+    setChecking(true);
     const results = {};
-    for (const target of targets) {
-      const ip = target.ip || target.extIp;
-      if (!ip) continue;
-      const key = target.id || target.ip || target.dns || ip;
+    for (const server of jumphosts) {
+      const serverId = server.id || server.dns || server.ip;
+      if (!serverId) continue;
       try {
-        const { data } = await api.post('/mikrotik/ping', {
-          serverId,
-          target: ip,
-          gatewayIp: null,
-          count: 3,
-        });
-        const up = data && typeof data.avgMs === 'number';
-        const ms = up ? data.avgMs : null;
-        results[key] = { ts: Date.now(), up, ms };
+        await api.post('/mikrotik/test-connection', { serverId });
+        results[serverId] = { ok: true, lastCheckTs: Date.now() };
       } catch {
-        results[key] = { ts: Date.now(), up: false, ms: null };
+        results[serverId] = { ok: false, lastCheckTs: Date.now() };
       }
+      await new Promise((r) => setTimeout(r, DELAY_BETWEEN_CHECKS_MS));
     }
-    setHistoryMap((prev) => {
+    setStatusMap((prev) => {
       const next = { ...prev };
-      for (const [key, entry] of Object.entries(results)) {
-        const list = Array.isArray(next[key]) ? next[key] : [];
-        const newList = [...list, entry].slice(-HISTORY_MAX);
-        next[key] = newList;
-      }
+      for (const [id, v] of Object.entries(results)) next[id] = v;
       return next;
     });
-    setPinging(false);
-  }, [routerServerId, targets]);
+    checkingRef.current = false;
+    setChecking(false);
+  }, [jumphosts]);
 
-  /** Автообновление по интервалу */
   useEffect(() => {
-    if (!routerServerId || pausedRef.current) return;
-    runPings();
-    intervalRef.current = setInterval(runPings, CHECK_INTERVAL_MS);
+    if (jumphosts.length === 0) return;
+    runChecks();
+    intervalRef.current = setInterval(runChecks, CHECK_INTERVAL_MS);
     return () => {
       if (intervalRef.current) clearInterval(intervalRef.current);
     };
-  }, [routerServerId, runPings]);
-
-  const handlePause = () => {
-    pausedRef.current = !pausedRef.current;
-    if (pausedRef.current && intervalRef.current) {
-      clearInterval(intervalRef.current);
-      intervalRef.current = null;
-    } else if (!pausedRef.current && routerServerId) {
-      runPings();
-      intervalRef.current = setInterval(runPings, CHECK_INTERVAL_MS);
-    }
-    setPinging((p) => p);
-  };
-
-  const selectedTarget = selectedTargetKey
-    ? targets.find((t) => (t.id || t.ip || t.dns) === selectedTargetKey)
-    : targets[0];
-  const selectedHistory = selectedTargetKey && historyMap[selectedTargetKey];
-  const selectedStats = selectedHistory ? computeUptimeStats(selectedHistory) : null;
-  const lastEntry = selectedHistory && selectedHistory.length > 0 ? selectedHistory[selectedHistory.length - 1] : null;
-  const isUp = lastEntry?.up ?? null;
+  }, [jumphosts, runChecks]);
 
   return (
     <div className="page-body">
@@ -201,37 +92,17 @@ export default function UptimeMonitorPage() {
           title="Uptime Monitor"
           icon={<IconClock size={28} />}
           pretitle="Extra"
-          meta="Мониторинг доступности по ping с выбранного роутера (как на карте сети)"
+          meta="Проверка доступности всех Jumphost и домашних роутеров (MikroTik API)"
           actions={
-            <div className="btn-list">
-              <label className="form-label mb-0 me-2 align-self-center">Роутер (откуда пинговать)</label>
-              <ServerAutocompleteInput
-                value={routerServerId}
-                onChange={(v) => setRouterServerId(String(v || '').trim())}
-                servers={routerServers}
-                placeholder="Jumphost или домашний роутер"
-                className="form-control form-control-flush"
-                maxSuggestions={10}
-              />
-              <button
-                type="button"
-                className="btn btn-primary"
-                onClick={runPings}
-                disabled={!routerServerId || targets.length === 0 || pinging}
-              >
-                <IconRefresh className={pinging ? 'spin' : ''} size={18} />
-                {pinging ? ' Проверка…' : ' Обновить пинг'}
-              </button>
-              <button
-                type="button"
-                className="btn btn-outline-secondary"
-                onClick={handlePause}
-                disabled={!routerServerId}
-                title={pausedRef.current ? 'Возобновить' : 'Приостановить'}
-              >
-                {pausedRef.current ? <IconPlayerPlay size={18} /> : <IconPlayerPause size={18} />}
-              </button>
-            </div>
+            <button
+              type="button"
+              className="btn btn-primary"
+              onClick={runChecks}
+              disabled={jumphosts.length === 0 || checking}
+            >
+              <IconRefresh className={checking ? 'spin' : ''} size={18} />
+              {checking ? ' Проверка…' : ' Проверить все'}
+            </button>
           }
         />
 
@@ -241,202 +112,76 @@ export default function UptimeMonitorPage() {
           </div>
         )}
 
-        {!loading && routerServerId && targets.length === 0 && (
-          <div className="alert alert-warning">
-            Нет целей для мониторинга. Добавьте серверы с IP (кроме выбранного роутера).
-          </div>
-        )}
-
-        {!loading && routerServerId && targets.length > 0 && (
-          <>
-            {/* Детальная карточка выбранной цели (в стиле Tabler Uptime) */}
-            {selectedTarget && (
-              <div className="row mb-4">
-                <div className="col-12">
-                  <div className="card">
-                    <div className="card-header">
-                      <h3 className="card-title">
-                        {selectedTarget.dns || selectedTarget.ip || selectedTarget.name || selectedTargetKey}
-                      </h3>
-                      <div className="card-actions">
-                        {isUp === true && (
-                          <span className="badge bg-success-lt">Up</span>
-                        )}
-                        {isUp === false && (
-                          <span className="badge bg-danger-lt">Down</span>
-                        )}
-                        {isUp === null && (
-                          <span className="badge bg-secondary-lt">—</span>
-                        )}
-                      </div>
-                    </div>
-                    <div className="card-body">
-                      <div className="row row-deck">
-                        <div className="col-sm-6 col-lg-3">
-                          <div className="card card-sm bg-primary-lt">
-                            <div className="card-body">
-                              <div className="text-muted small mb-1">Доступен уже</div>
-                              <div className="h3 mb-0">
-                                {isUp && lastEntry
-                                  ? formatDuration((Date.now() - lastEntry.ts) / 1000)
-                                  : isUp ? '—' : '0 сек'}
-                              </div>
-                            </div>
-                          </div>
-                        </div>
-                        <div className="col-sm-6 col-lg-3">
-                          <div className="card card-sm">
-                            <div className="card-body">
-                              <div className="text-muted small mb-1">Проверка каждые {CHECK_INTERVAL_MS / 60000} мин</div>
-                              <div className="h3 mb-0">Последняя: {lastEntry ? formatRelative(lastEntry.ts) : '—'}</div>
-                            </div>
-                          </div>
-                        </div>
-                        <div className="col-sm-6 col-lg-3">
-                          <div className="card card-sm">
-                            <div className="card-body">
-                              <div className="text-muted small mb-1">RTT (средн.)</div>
-                              <div className="h3 mb-0">
-                                {lastEntry?.ms != null ? `${Math.round(lastEntry.ms)} мс` : '—'}
-                              </div>
-                            </div>
-                          </div>
-                        </div>
-                        <div className="col-sm-6 col-lg-3">
-                          <div className="card card-sm">
-                            <div className="card-body">
-                              <div className="text-muted small mb-1">Инциденты (по истории)</div>
-                              <div className="h3 mb-0">{selectedStats?.incidents ?? '—'}</div>
-                            </div>
-                          </div>
-                        </div>
-                      </div>
-                    </div>
-                  </div>
-                </div>
-              </div>
-            )}
-
-            {/* Таблица периодов (как на Tabler) — по выбранной цели */}
-            {selectedTarget && selectedStats != null && (
-              <div className="row mb-4">
-                <div className="col-12">
-                  <div className="card">
-                    <div className="card-header">
-                      <h3 className="card-title">Доступность по периодам</h3>
-                    </div>
-                    <div className="table-responsive">
-                      <table className="table table-vcenter card-table table-striped">
-                        <thead>
-                          <tr>
-                            <th>Период</th>
-                            <th>Доступность</th>
-                            <th>Простой</th>
-                            <th>Инциденты</th>
-                            <th>Самый долгий</th>
-                            <th>Средний инцидент</th>
-                          </tr>
-                        </thead>
-                        <tbody>
-                          <tr>
-                            <td>По сохранённой истории</td>
-                            <td>
-                              {selectedStats.availability != null
-                                ? `${selectedStats.availability.toFixed(2)}%`
-                                : '—'}
-                            </td>
-                            <td>{formatDuration(selectedStats.totalDowntimeSec)}</td>
-                            <td>{selectedStats.incidents}</td>
-                            <td>{formatDuration(selectedStats.longestDowntimeSec)}</td>
-                            <td>{formatDuration(selectedStats.avgIncidentSec)}</td>
-                          </tr>
-                        </tbody>
-                      </table>
-                    </div>
-                  </div>
-                </div>
-              </div>
-            )}
-
-            {/* Таблица всех целей */}
-            <div className="card">
-              <div className="card-header">
-                <h3 className="card-title">Цели мониторинга</h3>
-              </div>
-              <div className="table-responsive">
-                <table className="table table-vcenter card-table table-striped">
-                  <thead>
-                    <tr>
-                      <th>Сервер / IP</th>
-                      <th>Статус</th>
-                      <th>Последняя проверка</th>
-                      <th>RTT</th>
-                      <th>Доступность</th>
-                      <th>Инциденты</th>
-                    </tr>
-                  </thead>
-                  <tbody>
-                    {targets.map((t) => {
-                      const key = t.id || t.ip || t.dns || t.ip;
-                      const hist = historyMap[key] || [];
-                      const last = hist.length > 0 ? hist[hist.length - 1] : null;
-                      const stats = computeUptimeStats(hist);
-                      const isSelected = (selectedTargetKey || (targets[0] && (targets[0].id || targets[0].ip))) === key;
-                      return (
-                        <tr
-                          key={key}
-                          className={isSelected ? 'table-active' : ''}
-                          style={{ cursor: 'pointer' }}
-                          onClick={() => setSelectedTargetKey(key)}
-                        >
-                          <td>
-                            <div className="d-flex align-items-center">
-                              <IconServer size={18} className="me-2 text-muted" />
-                              {t.dns || t.name || t.ip || t.extIp || key}
-                            </div>
-                          </td>
-                          <td>
-                            {last == null && (
-                              <span className="badge bg-secondary">—</span>
-                            )}
-                            {last?.up === true && (
-                              <span className="badge bg-success-lt text-success">
-                                <IconCircleCheck size={14} /> Up
-                              </span>
-                            )}
-                            {last?.up === false && (
-                              <span className="badge bg-danger-lt text-danger">
-                                <IconCircleX size={14} /> Down
-                              </span>
-                            )}
-                          </td>
-                          <td>{last ? formatRelative(last.ts) : '—'}</td>
-                          <td>{last?.ms != null ? `${Math.round(last.ms)} мс` : '—'}</td>
-                          <td>
-                            {stats.availability != null ? `${stats.availability.toFixed(1)}%` : '—'}
-                          </td>
-                          <td>{stats.incidents}</td>
-                        </tr>
-                      );
-                    })}
-                  </tbody>
-                </table>
-              </div>
-            </div>
-          </>
-        )}
-
-        {!loading && !routerServerId && (
+        {!loading && jumphosts.length === 0 && (
           <div className="empty">
             <div className="empty-icon">
               <IconChartLine size={48} />
             </div>
-            <p className="empty-title">Выберите роутер</p>
+            <p className="empty-title">Нет Jumphost</p>
             <p className="empty-subtitle text-muted">
-              Укажите jumphost или домашний роутер с MikroTik API — с него будет выполняться ping по целям.
+              Добавьте серверы типа «Jumphost» или «Home» с настроенным MikroTik API — здесь будет отображаться их доступность.
             </p>
           </div>
         )}
+
+        {!loading && jumphosts.length > 0 && (
+          <div className="card">
+            <div className="card-header">
+              <h3 className="card-title">Доступность Jumphost и домашних роутеров</h3>
+              <div className="card-actions text-muted small">
+                Проверка каждые {CHECK_INTERVAL_MS / 60000} мин
+              </div>
+            </div>
+            <div className="table-responsive">
+              <table className="table table-vcenter card-table table-striped">
+                <thead>
+                  <tr>
+                    <th>Сервер</th>
+                    <th>Статус</th>
+                    <th>Последняя проверка</th>
+                  </tr>
+                </thead>
+                <tbody>
+                  {jumphosts.map((s) => {
+                    const id = s.id || s.dns || s.ip;
+                    const status = statusMap[id];
+                    const label = s.dns || s.name || s.ip || id;
+                    return (
+                      <tr key={id}>
+                        <td>
+                          <div className="d-flex align-items-center">
+                            <IconServer size={18} className="me-2 text-muted" />
+                            {label}
+                          </div>
+                        </td>
+                        <td>
+                          {status == null && (
+                            <span className="badge bg-secondary">—</span>
+                          )}
+                          {status?.ok === true && (
+                            <span className="badge bg-success-lt text-success">
+                              <IconCircleCheck size={14} /> Доступен
+                            </span>
+                          )}
+                          {status?.ok === false && (
+                            <span className="badge bg-danger-lt text-danger">
+                              <IconCircleX size={14} /> Недоступен
+                            </span>
+                          )}
+                        </td>
+                        <td className="text-muted">
+                          {status?.lastCheckTs
+                            ? formatRelative(status.lastCheckTs)
+                            : '—'}
+                        </td>
+                      </tr>
+                    );
+                  })}
+                </tbody>
+              </table>
+            </div>
+          </div>
+        )}
       </div>
     </div>
   );