Initial implementation of Website Change Detection Monitor MVP
Features implemented: - Backend API with Express + TypeScript - User authentication (register/login with JWT) - Monitor CRUD operations with plan-based limits - Automated change detection engine - Email alert system - Frontend with Next.js + TypeScript - Dashboard with monitor management - Login/register pages - Monitor history viewer - PostgreSQL database schema - Docker setup for local development Technical stack: - Backend: Express, TypeScript, PostgreSQL, Redis (ready) - Frontend: Next.js 14, React Query, Tailwind CSS - Database: PostgreSQL with migrations - Services: Page fetching, diff detection, email alerts Documentation: - README with full setup instructions - SETUP guide for quick start - PROJECT_STATUS with current capabilities - Complete technical specifications Ready for local testing and feature expansion. Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>
This commit is contained in:
Timo
253
frontend/app/dashboard/page.tsx
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253
frontend/app/dashboard/page.tsx
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'use client'
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import { useEffect, useState } from 'react'
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import { useRouter } from 'next/navigation'
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import { useQuery } from '@tanstack/react-query'
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import { monitorAPI } from '@/lib/api'
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import { isAuthenticated, clearAuth } from '@/lib/auth'
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export default function DashboardPage() {
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const router = useRouter()
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const [showAddForm, setShowAddForm] = useState(false)
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const [newMonitor, setNewMonitor] = useState({
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url: '',
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name: '',
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frequency: 60,
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})
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useEffect(() => {
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if (!isAuthenticated()) {
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router.push('/login')
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}
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}, [router])
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const { data, isLoading, refetch } = useQuery({
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queryKey: ['monitors'],
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queryFn: async () => {
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const response = await monitorAPI.list()
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return response.monitors
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},
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})
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const handleLogout = () => {
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clearAuth()
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router.push('/login')
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}
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const handleAddMonitor = async (e: React.FormEvent) => {
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e.preventDefault()
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try {
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await monitorAPI.create(newMonitor)
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setNewMonitor({ url: '', name: '', frequency: 60 })
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setShowAddForm(false)
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refetch()
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} catch (err) {
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console.error('Failed to create monitor:', err)
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}
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}
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const handleCheckNow = async (id: string) => {
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try {
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await monitorAPI.check(id)
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alert('Check triggered! Results will appear shortly.')
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setTimeout(() => refetch(), 2000)
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} catch (err) {
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console.error('Failed to trigger check:', err)
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}
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}
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const handleDelete = async (id: string) => {
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if (!confirm('Are you sure you want to delete this monitor?')) return
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try {
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await monitorAPI.delete(id)
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refetch()
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} catch (err) {
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console.error('Failed to delete monitor:', err)
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}
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}
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if (isLoading) {
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return (
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<div className="flex min-h-screen items-center justify-center">
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<p>Loading...</p>
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</div>
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)
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}
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const monitors = data || []
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return (
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<div className="min-h-screen bg-gray-50">
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{/* Header */}
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<header className="border-b bg-white">
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<div className="mx-auto max-w-7xl px-4 py-4 sm:px-6 lg:px-8">
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<div className="flex items-center justify-between">
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<h1 className="text-2xl font-bold">Website Monitor</h1>
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<button
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onClick={handleLogout}
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className="rounded-md border px-4 py-2 text-sm hover:bg-gray-50"
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>
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Logout
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</button>
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</div>
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</div>
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</header>
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{/* Main Content */}
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<main className="mx-auto max-w-7xl px-4 py-8 sm:px-6 lg:px-8">
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<div className="mb-6 flex items-center justify-between">
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<div>
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<h2 className="text-xl font-semibold">Your Monitors</h2>
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<p className="text-sm text-gray-600">
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{monitors.length} monitor{monitors.length !== 1 ? 's' : ''} active
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</p>
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</div>
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<button
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onClick={() => setShowAddForm(true)}
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className="rounded-md bg-primary px-4 py-2 text-white hover:bg-primary/90"
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>
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+ Add Monitor
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</button>
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</div>
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{/* Add Monitor Form */}
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{showAddForm && (
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<div className="mb-6 rounded-lg bg-white p-6 shadow">
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<h3 className="mb-4 text-lg font-semibold">Add New Monitor</h3>
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<form onSubmit={handleAddMonitor} className="space-y-4">
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<div>
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<label className="block text-sm font-medium text-gray-700">
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URL
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</label>
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<input
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type="url"
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value={newMonitor.url}
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onChange={(e) =>
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setNewMonitor({ ...newMonitor, url: e.target.value })
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}
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placeholder="https://example.com"
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required
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className="mt-1 block w-full rounded-md border px-3 py-2"
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/>
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</div>
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<div>
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<label className="block text-sm font-medium text-gray-700">
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Name (optional)
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</label>
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<input
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type="text"
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value={newMonitor.name}
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onChange={(e) =>
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setNewMonitor({ ...newMonitor, name: e.target.value })
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}
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placeholder="My Monitor"
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className="mt-1 block w-full rounded-md border px-3 py-2"
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/>
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</div>
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<div>
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<label className="block text-sm font-medium text-gray-700">
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Check Frequency (minutes)
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</label>
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<select
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value={newMonitor.frequency}
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onChange={(e) =>
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setNewMonitor({
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...newMonitor,
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frequency: parseInt(e.target.value),
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})
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}
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className="mt-1 block w-full rounded-md border px-3 py-2"
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>
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<option value={5}>Every 5 minutes</option>
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<option value={30}>Every 30 minutes</option>
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<option value={60}>Every hour</option>
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<option value={360}>Every 6 hours</option>
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<option value={1440}>Every 24 hours</option>
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</select>
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</div>
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<div className="flex gap-2">
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<button
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type="submit"
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className="rounded-md bg-primary px-4 py-2 text-white hover:bg-primary/90"
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>
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Create Monitor
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</button>
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<button
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type="button"
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onClick={() => setShowAddForm(false)}
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className="rounded-md border px-4 py-2 hover:bg-gray-50"
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>
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Cancel
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</button>
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</div>
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</form>
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</div>
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)}
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{/* Monitors List */}
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{monitors.length === 0 ? (
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<div className="rounded-lg bg-white p-12 text-center shadow">
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<p className="mb-4 text-gray-600">No monitors yet</p>
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<button
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onClick={() => setShowAddForm(true)}
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className="rounded-md bg-primary px-4 py-2 text-white hover:bg-primary/90"
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>
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Create Your First Monitor
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</button>
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</div>
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) : (
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<div className="space-y-4">
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{monitors.map((monitor: any) => (
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<div
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key={monitor.id}
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className="rounded-lg bg-white p-6 shadow hover:shadow-md"
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>
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<div className="flex items-start justify-between">
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<div className="flex-1">
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<h3 className="font-semibold">{monitor.name}</h3>
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<p className="text-sm text-gray-600 break-all">{monitor.url}</p>
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<div className="mt-2 flex gap-4 text-xs text-gray-500">
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<span>Every {monitor.frequency} min</span>
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<span className="capitalize">Status: {monitor.status}</span>
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{monitor.last_checked_at && (
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<span>
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Last checked:{' '}
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{new Date(monitor.last_checked_at).toLocaleString()}
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</span>
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)}
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</div>
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</div>
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<div className="flex gap-2">
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<button
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onClick={() => handleCheckNow(monitor.id)}
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className="rounded-md border px-3 py-1 text-sm hover:bg-gray-50"
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>
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Check Now
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</button>
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<button
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onClick={() => router.push(`/monitors/${monitor.id}`)}
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className="rounded-md border px-3 py-1 text-sm hover:bg-gray-50"
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>
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History
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</button>
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<button
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onClick={() => handleDelete(monitor.id)}
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className="rounded-md border border-red-200 px-3 py-1 text-sm text-red-600 hover:bg-red-50"
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>
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Delete
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</button>
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</div>
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</div>
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</div>
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))}
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</div>
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)}
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</main>
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</div>
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)
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}
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