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import { useParams, useNavigate } from "react-router-dom";
import { useMonitor } from "../hooks/useMonitors";
import { useMonitorStats, useMonitorPings } from "../hooks/usePings";
import { formatPercentage, formatDateTime } from "../utils/formatters";
import DashboardShell from "../components/layout/DashboardShell";
import StatusIndicator from "../components/monitors/StatusIndicator";
import UptimeChart from "../components/monitors/UptimeChart";
const PINGS_PAGE_SIZE = 10;
export default function MonitorDetail() {
const { id } = useParams<{ id: string }>();
const navigate = useNavigate();
const [pingsPage, setPingsPage] = useState(0);
const { data: monitor, isLoading: monitorLoading } = useMonitor(id!);
const { data: stats } = useMonitorStats(id!);
const { data: pingsResponse, isLoading: pingsLoading } = useMonitorPings(
id!,
pingsPage * PINGS_PAGE_SIZE,
PINGS_PAGE_SIZE,
);
const pings = pingsResponse?.items ?? [];
const totalPings = pingsResponse?.total ?? 0;
const totalPingsPages = Math.max(1, Math.ceil(totalPings / PINGS_PAGE_SIZE));
if (monitorLoading) {
return (
<DashboardShell>
<div className="flex justify-center py-12">
<div className="animate-spin rounded-full h-8 w-8 border-b-2 border-blue-600" />
</div>
</DashboardShell>
);
}
if (!monitor) {
return (
<DashboardShell>
<div className="text-center py-12">
<p className="text-gray-500">Monitor not found</p>
<button
onClick={() => navigate("/dashboard")}
className="mt-4 text-blue-600 hover:underline"
>
Back to Dashboard
</button>
</div>
</DashboardShell>
);
}
return (
<DashboardShell>
<div className="space-y-6">
<div className="flex items-center justify-between">
<div>
<button
onClick={() => navigate("/dashboard")}
className="text-sm text-gray-500 hover:text-gray-700 mb-2 cursor-pointer"
>
← Back
</button>
<h1 className="text-2xl font-bold text-gray-900">{monitor.url}</h1>
</div>
<StatusIndicator status={monitor.alert_status} />
</div>
{/* Stats Grid */}
{stats && (
<div className="grid grid-cols-2 md:grid-cols-4 gap-4">
<StatCard
label="Uptime"
value={formatPercentage(stats.uptime_percent)}
/>
<StatCard label="Checks" value={String(stats.total_checks)} />
<StatCard
label="Avg Response"
value={
stats.avg_response_ms ? `${stats.avg_response_ms}ms` : "N/A"
}
/>
<StatCard
label="24h Uptime"
value={formatPercentage(stats.last_24h.uptime_percent)}
/>
</div>
)}
{/* Chart */}
<div className="rounded-lg border border-gray-200 bg-white p-6">
<h2 className="text-lg font-semibold text-gray-900 mb-4">
Response Time
</h2>
<UptimeChart monitorId={id!} />
</div>
{/* Recent Pings — Paginated */}
<div className="rounded-lg border border-gray-200 bg-white p-6">
<div className="flex items-center justify-between mb-4">
<h2 className="text-lg font-semibold text-gray-900">
Recent Checks
</h2>
<span className="text-sm text-gray-500">
{totalPings} total checks
</span>
</div>
{pingsLoading ? (
<div className="flex justify-center py-8">
<div className="animate-spin rounded-full h-6 w-6 border-b-2 border-blue-600" />
</div>
) : pings.length === 0 ? (
<p className="text-sm text-gray-500 text-center py-4">
No check data available yet.
</p>
) : (
<>
<div className="space-y-2">
{pings.map((ping) => (
<div
key={ping.id}
className="flex items-center justify-between py-2 border-b border-gray-100 last:border-0"
>
<div className="flex items-center gap-3">
<div
className={`w-2 h-2 rounded-full ${ping.is_up ? "bg-emerald-400" : "bg-red-400"}`}
/>
<span className="text-sm text-gray-600">
{formatDateTime(ping.timestamp)}
</span>
</div>
<div className="text-sm text-gray-500">
{ping.status_code && (
<span className="mr-3">HTTP {ping.status_code}</span>
)}
{ping.response_ms && <span>{ping.response_ms}ms</span>}
{ping.error_message && (
<span className="text-red-500">
{ping.error_message}
</span>
)}
</div>
</div>
))}
</div>
{/* Pagination Controls */}
<div className="flex justify-between items-center mt-4 pt-4 border-t border-gray-100">
<button
onClick={() => setPingsPage((p) => Math.max(0, p - 1))}
disabled={pingsPage === 0}
className="px-3 py-1 border rounded text-sm disabled:opacity-50 enabled:hover:bg-gray-100 enabled:cursor-pointer cursor-default transition-colors"
>
Previous
</button>
<span className="text-sm text-gray-500">
Page {pingsPage + 1} of {totalPingsPages}
</span>
<button
onClick={() => setPingsPage((p) => p + 1)}
disabled={pingsPage >= totalPingsPages - 1}
className="px-3 py-1 border rounded text-sm disabled:opacity-50 enabled:hover:bg-gray-100 enabled:cursor-pointer cursor-default transition-colors"
>
Next
</button>
</div>
</>
)}
</div>
</div>
</DashboardShell>
);
}
export function StatCard({ label, value }: { label: string; value: string }) {
return (
<div className="rounded-lg border border-gray-200 bg-white p-4">
<p className="text-sm text-gray-500 mb-1">{label}</p>
<p className="text-2xl font-bold text-gray-900">{value}</p>
</div>
);
}
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