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import React, { useState, useCallback } from 'react';
import { formatDuration } from '@/lib/monitoring/percentiles';
export interface TraceListItem {
id: string;
name: string;
serviceName: string;
startTime: string;
endTime: string;
duration: number;
status: 'ok' | 'error';
spanCount: number;
userId?: number | null;
requestId?: string | null;
}
export interface TraceExplorerProps {
/** List of traces to display */
traces: TraceListItem[];
/** Currently selected trace ID */
selectedTraceId?: string;
/** Callback when a trace is selected */
onSelectTrace?: (traceId: string) => void;
/** Loading state */
isLoading?: boolean;
/** Search/filter value */
searchValue?: string;
/** Callback when search changes */
onSearchChange?: (value: string) => void;
/** Status filter */
statusFilter?: 'all' | 'ok' | 'error';
/** Callback when status filter changes */
onStatusFilterChange?: (status: 'all' | 'ok' | 'error') => void;
/** Additional CSS classes */
className?: string;
}
/**
* Get status badge color
*/
function getStatusColor(status: string): string {
switch (status) {
case 'error':
return 'bg-red-100 text-red-800 dark:bg-red-900/30 dark:text-red-400';
case 'ok':
return 'bg-green-100 text-green-800 dark:bg-green-900/30 dark:text-green-400';
default:
return 'bg-gray-100 text-gray-800 dark:bg-gray-700 dark:text-gray-300';
}
}
/**
* Get duration color based on value
*/
function getDurationColor(duration: number): string {
if (duration < 100) return 'text-green-600 dark:text-green-400';
if (duration < 300) return 'text-yellow-600 dark:text-yellow-400';
if (duration < 1000) return 'text-orange-600 dark:text-orange-400';
return 'text-red-600 dark:text-red-400';
}
/**
* Format relative time
*/
function formatRelativeTime(dateString: string): string {
const date = new Date(dateString);
const now = new Date();
const diffMs = now.getTime() - date.getTime();
const diffMins = Math.floor(diffMs / 60000);
const diffHours = Math.floor(diffMins / 60);
const diffDays = Math.floor(diffHours / 24);
if (diffMins < 1) return 'Just now';
if (diffMins < 60) return `${diffMins}m ago`;
if (diffHours < 24) return `${diffHours}h ago`;
if (diffDays < 7) return `${diffDays}d ago`;
return date.toLocaleDateString();
}
/**
* TraceExplorer - List view for browsing and searching traces
*/
export function TraceExplorer({
traces,
selectedTraceId,
onSelectTrace,
isLoading = false,
searchValue = '',
onSearchChange,
statusFilter = 'all',
onStatusFilterChange,
className = '',
}: TraceExplorerProps) {
const [localSearch, setLocalSearch] = useState(searchValue);
const handleSearchChange = useCallback(
(e: React.ChangeEvent<HTMLInputElement>) => {
setLocalSearch(e.target.value);
onSearchChange?.(e.target.value);
},
[onSearchChange]
);
if (isLoading) {
return (
<div
className={`bg-white dark:bg-gray-800 rounded-lg shadow ${className}`}
data-testid="trace-explorer"
>
<div className="p-4 border-b border-gray-200 dark:border-gray-700">
<div className="h-10 bg-gray-200 dark:bg-gray-700 rounded animate-pulse" />
</div>
<div className="divide-y divide-gray-200 dark:divide-gray-700">
{[1, 2, 3, 4, 5].map((i) => (
<div key={i} className="p-4">
<div className="h-5 w-3/4 bg-gray-200 dark:bg-gray-700 rounded animate-pulse mb-2" />
<div className="h-4 w-1/2 bg-gray-200 dark:bg-gray-700 rounded animate-pulse" />
</div>
))}
</div>
</div>
);
}
return (
<div
className={`bg-white dark:bg-gray-800 rounded-lg shadow ${className}`}
data-testid="trace-explorer"
>
{/* Header with search and filters */}
<div className="p-4 border-b border-gray-200 dark:border-gray-700">
<div className="flex flex-col sm:flex-row gap-3">
{/* Search input */}
<div className="flex-1">
<input
type="text"
placeholder="Search traces by name..."
value={localSearch}
onChange={handleSearchChange}
className="w-full px-3 py-2 text-sm border border-gray-300 dark:border-gray-600 rounded-md bg-white dark:bg-gray-700 text-gray-900 dark:text-white placeholder-gray-500 dark:placeholder-gray-400 focus:ring-2 focus:ring-blue-500 focus:border-blue-500"
data-testid="trace-search-input"
/>
</div>
{/* Status filter */}
<div className="flex gap-1">
{(['all', 'ok', 'error'] as const).map((status) => (
<button
key={status}
onClick={() => onStatusFilterChange?.(status)}
className={`px-3 py-2 text-sm font-medium rounded-md transition-colors ${
statusFilter === status
? 'bg-blue-600 text-white'
: 'bg-gray-100 dark:bg-gray-700 text-gray-700 dark:text-gray-300 hover:bg-gray-200 dark:hover:bg-gray-600'
}`}
data-testid={`filter-${status}`}
>
{status === 'all' ? 'All' : status.charAt(0).toUpperCase() + status.slice(1)}
</button>
))}
</div>
</div>
</div>
{/* Trace list */}
{traces.length === 0 ? (
<div className="p-8 text-center">
<p className="text-gray-500 dark:text-gray-400">No traces found</p>
{searchValue && (
<p className="text-sm text-gray-400 dark:text-gray-500 mt-1">
Try adjusting your search filters
</p>
)}
</div>
) : (
<div className="divide-y divide-gray-200 dark:divide-gray-700 max-h-[600px] overflow-y-auto">
{traces.map((trace) => (
<button
key={trace.id}
onClick={() => onSelectTrace?.(trace.id)}
className={`w-full text-left p-4 hover:bg-gray-50 dark:hover:bg-gray-700/50 transition-colors ${
selectedTraceId === trace.id ? 'bg-blue-50 dark:bg-blue-900/20' : ''
}`}
data-testid={`trace-item-${trace.id}`}
>
<div className="flex items-start justify-between gap-4">
<div className="flex-1 min-w-0">
{/* Trace name */}
<div className="flex items-center gap-2 mb-1">
<span
className={`px-2 py-0.5 text-xs font-medium rounded ${getStatusColor(trace.status)}`}
>
{trace.status}
</span>
<span className="font-medium text-gray-900 dark:text-white truncate">
{trace.name}
</span>
</div>
{/* Trace metadata */}
<div className="flex items-center gap-3 text-sm text-gray-500 dark:text-gray-400">
<span>{trace.serviceName}</span>
<span>{trace.spanCount} spans</span>
{trace.requestId && (
<span className="font-mono text-xs truncate max-w-[120px]">
{trace.requestId}
</span>
)}
</div>
</div>
{/* Timing info */}
<div className="text-right flex-shrink-0">
<div className={`font-medium ${getDurationColor(trace.duration)}`}>
{formatDuration(trace.duration)}
</div>
<div className="text-xs text-gray-400 dark:text-gray-500">
{formatRelativeTime(trace.startTime)}
</div>
</div>
</div>
</button>
))}
</div>
)}
</div>
);
}
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