完成 APP 建立流程和使用分析、增加主機備機的備援機制、管理者後臺增加資料庫監控
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303
components/admin/database-monitor.tsx
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303
components/admin/database-monitor.tsx
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'use client';
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// =====================================================
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// 資料庫監控組件
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// =====================================================
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import React, { useState, useEffect } from 'react';
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import { Card, CardContent, CardDescription, CardHeader, CardTitle } from '@/components/ui/card';
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import { Badge } from '@/components/ui/badge';
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import { Button } from '@/components/ui/button';
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import { Alert, AlertDescription } from '@/components/ui/alert';
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import { RefreshCw, Database, Server, AlertTriangle, CheckCircle } from 'lucide-react';
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interface DatabaseStatus {
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isEnabled: boolean;
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currentDatabase: 'master' | 'slave';
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masterHealthy: boolean;
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slaveHealthy: boolean;
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lastHealthCheck: string;
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consecutiveFailures: number;
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uptime: number;
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timestamp: string;
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}
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interface DatabaseMonitorProps {
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className?: string;
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}
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export function DatabaseMonitor({ className }: DatabaseMonitorProps) {
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const [status, setStatus] = useState<DatabaseStatus | null>(null);
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const [loading, setLoading] = useState(true);
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const [error, setError] = useState<string | null>(null);
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const [switching, setSwitching] = useState(false);
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// 獲取資料庫狀態
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const fetchStatus = async () => {
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try {
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setLoading(true);
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setError(null);
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const response = await fetch('/api/admin/database-status');
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const data = await response.json();
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if (data.success) {
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setStatus(data.data);
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} else {
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setError(data.message);
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}
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} catch (err) {
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setError('無法連接到監控服務');
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console.error('獲取資料庫狀態失敗:', err);
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} finally {
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setLoading(false);
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}
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};
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// 切換資料庫
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const switchDatabase = async (database: 'master' | 'slave') => {
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try {
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setSwitching(true);
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const response = await fetch('/api/admin/database-status', {
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method: 'POST',
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headers: {
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'Content-Type': 'application/json',
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},
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body: JSON.stringify({
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action: 'switch',
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database: database
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})
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});
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const data = await response.json();
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if (data.success) {
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// 重新獲取狀態
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await fetchStatus();
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} else {
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setError(data.message);
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}
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} catch (err) {
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setError('切換資料庫失敗');
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console.error('切換資料庫失敗:', err);
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} finally {
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setSwitching(false);
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}
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};
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// 格式化時間
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const formatTime = (timestamp: string) => {
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return new Date(timestamp).toLocaleString('zh-TW');
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};
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// 格式化運行時間
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const formatUptime = (seconds: number) => {
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const hours = Math.floor(seconds / 3600);
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const minutes = Math.floor((seconds % 3600) / 60);
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const secs = Math.floor(seconds % 60);
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return `${hours}時${minutes}分${secs}秒`;
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};
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// 組件掛載時獲取狀態
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useEffect(() => {
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fetchStatus();
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// 每30秒自動刷新
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const interval = setInterval(fetchStatus, 30000);
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return () => clearInterval(interval);
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}, []);
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if (loading) {
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return (
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<Card className={className}>
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<CardHeader>
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<CardTitle className="flex items-center gap-2">
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<Database className="h-5 w-5" />
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資料庫監控
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</CardTitle>
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</CardHeader>
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<CardContent>
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<div className="flex items-center justify-center py-8">
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<RefreshCw className="h-6 w-6 animate-spin" />
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<span className="ml-2">載入中...</span>
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</div>
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</CardContent>
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</Card>
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);
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}
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if (error) {
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return (
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<Card className={className}>
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<CardHeader>
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<CardTitle className="flex items-center gap-2">
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<Database className="h-5 w-5" />
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資料庫監控
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</CardTitle>
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</CardHeader>
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<CardContent>
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<Alert variant="destructive">
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<AlertTriangle className="h-4 w-4" />
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<AlertDescription>{error}</AlertDescription>
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</Alert>
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<Button
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onClick={fetchStatus}
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variant="outline"
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className="mt-4"
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>
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<RefreshCw className="h-4 w-4 mr-2" />
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重新載入
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</Button>
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</CardContent>
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</Card>
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);
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}
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if (!status) {
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return (
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<Card className={className}>
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<CardHeader>
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<CardTitle className="flex items-center gap-2">
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<Database className="h-5 w-5" />
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資料庫監控
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</CardTitle>
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</CardHeader>
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<CardContent>
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<p>無法獲取資料庫狀態</p>
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</CardContent>
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</Card>
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);
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}
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return (
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<Card className={className}>
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<CardHeader>
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<CardTitle className="flex items-center justify-between">
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<div className="flex items-center gap-2">
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<Database className="h-5 w-5" />
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資料庫監控
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</div>
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<Button
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onClick={fetchStatus}
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variant="outline"
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size="sm"
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disabled={loading}
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>
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<RefreshCw className={`h-4 w-4 mr-2 ${loading ? 'animate-spin' : ''}`} />
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刷新
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</Button>
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</CardTitle>
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<CardDescription>
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監控主機和備機資料庫的連接狀態
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</CardDescription>
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</CardHeader>
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<CardContent className="space-y-4">
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{/* 整體狀態 */}
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<div className="flex items-center justify-between">
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<span className="text-sm font-medium">備援狀態</span>
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<Badge variant={status.isEnabled ? "default" : "secondary"}>
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{status.isEnabled ? "啟用" : "停用"}
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</Badge>
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</div>
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{/* 當前資料庫 */}
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<div className="flex items-center justify-between">
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<span className="text-sm font-medium">當前資料庫</span>
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<Badge variant={status.currentDatabase === 'master' ? "default" : "secondary"}>
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{status.currentDatabase === 'master' ? "主機" : "備機"}
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</Badge>
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</div>
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{/* 主機狀態 */}
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<div className="space-y-2">
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<div className="flex items-center justify-between">
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<div className="flex items-center gap-2">
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<Server className="h-4 w-4" />
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<span className="text-sm font-medium">主機資料庫</span>
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</div>
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<div className="flex items-center gap-2">
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{status.masterHealthy ? (
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<CheckCircle className="h-4 w-4 text-green-500" />
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) : (
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<AlertTriangle className="h-4 w-4 text-red-500" />
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)}
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<Badge variant={status.masterHealthy ? "default" : "destructive"}>
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{status.masterHealthy ? "正常" : "異常"}
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</Badge>
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</div>
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</div>
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{status.masterHealthy && (
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<Button
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onClick={() => switchDatabase('master')}
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variant="outline"
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size="sm"
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disabled={switching || status.currentDatabase === 'master'}
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className="w-full"
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>
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切換到主機
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</Button>
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)}
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</div>
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{/* 備機狀態 */}
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<div className="space-y-2">
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<div className="flex items-center justify-between">
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<div className="flex items-center gap-2">
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<Server className="h-4 w-4" />
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<span className="text-sm font-medium">備機資料庫</span>
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</div>
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<div className="flex items-center gap-2">
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{status.slaveHealthy ? (
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<CheckCircle className="h-4 w-4 text-green-500" />
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) : (
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<AlertTriangle className="h-4 w-4 text-red-500" />
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)}
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<Badge variant={status.slaveHealthy ? "default" : "destructive"}>
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{status.slaveHealthy ? "正常" : "異常"}
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</Badge>
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</div>
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</div>
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{status.slaveHealthy && (
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<Button
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onClick={() => switchDatabase('slave')}
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variant="outline"
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size="sm"
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disabled={switching || status.currentDatabase === 'slave'}
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className="w-full"
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>
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切換到備機
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</Button>
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)}
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</div>
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{/* 統計信息 */}
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<div className="pt-4 border-t space-y-2">
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<div className="flex items-center justify-between text-sm">
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<span>連續失敗次數</span>
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<span className="font-mono">{status.consecutiveFailures}</span>
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</div>
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<div className="flex items-center justify-between text-sm">
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<span>最後檢查時間</span>
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<span className="font-mono">{formatTime(status.lastHealthCheck)}</span>
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</div>
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<div className="flex items-center justify-between text-sm">
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<span>系統運行時間</span>
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<span className="font-mono">{formatUptime(status.uptime)}</span>
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</div>
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</div>
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{/* 警告信息 */}
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{status.consecutiveFailures > 0 && (
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<Alert>
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<AlertTriangle className="h-4 w-4" />
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<AlertDescription>
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資料庫已連續失敗 {status.consecutiveFailures} 次，請檢查連接狀態
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</AlertDescription>
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</Alert>
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)}
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</CardContent>
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</Card>
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);
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}
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