Add Loading & Error UI components for web application

Implemented comprehensive loading and error handling components for the
WellNuo web application with full test coverage.

Components added:
- LoadingSpinner: Configurable spinner with sizes, colors, and variants
  * LoadingOverlay: Full-screen loading with backdrop options
  * InlineLoader: Small inline spinner for buttons
  * PageLoader: Full-page centered loading state

- ErrorMessage: Inline error messages with severity levels
  * FullScreenError: Full-page error states with retry/back actions
  * FieldError: Form field validation errors
  * ErrorBoundaryFallback: Error boundary fallback component
  * EmptyState: Empty data state component

- Skeleton: Animated loading skeletons
  * SkeletonAvatar: Circular avatar skeleton
  * SkeletonText: Multi-line text skeleton
  * SkeletonCard: Card-style skeleton
  * SkeletonList: List of skeleton cards
  * SkeletonTable: Table skeleton with rows/columns
  * SkeletonDashboard: Dashboard-style skeleton layout
  * SkeletonForm: Form skeleton with fields

Technical details:
- Tailwind CSS styling with cn() utility function
- Full accessibility support (ARIA labels, roles)
- Comprehensive test coverage (57 tests, all passing)
- TypeScript strict mode compliance
- Added clsx and tailwind-merge dependencies

Files:
- web/components/ui/LoadingSpinner.tsx
- web/components/ui/ErrorMessage.tsx
- web/components/ui/Skeleton.tsx
- web/components/ui/index.ts
- web/lib/utils.ts
- web/components/ui/__tests__/*.test.tsx

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>
This commit is contained in:
Sergei 2026-01-31 18:26:28 -08:00
parent 0962b5e35b
commit 71f194cc4d
10 changed files with 1475 additions and 0 deletions

View File

@ -0,0 +1,399 @@
/**
* ErrorMessage - Error display components for web
*
* Components:
* - ErrorMessage: Inline error with optional retry
* - FullScreenError: Full page error state
* - ErrorToast: Dismissible error notification
* - FieldError: Form field validation error
*
* Features:
* - Multiple severity levels
* - Retry and dismiss actions
* - Accessible ARIA labels
* - Tailwind CSS styling
*/
import { cn } from '@/lib/utils';
// Error severity types
export type ErrorSeverity = 'error' | 'warning' | 'info';
/**
* ErrorMessage - Inline error message with icon and optional actions
*
* @example
* ```tsx
* <ErrorMessage
* message="Failed to load data"
* onRetry={() => refetch()}
* />
* ```
*/
interface ErrorMessageProps {
message: string;
severity?: ErrorSeverity;
onRetry?: () => void;
onDismiss?: () => void;
className?: string;
}
const severityStyles = {
error: {
container: 'bg-red-50 border-red-200 text-red-800',
icon: 'text-red-500',
button: 'text-red-600 hover:text-red-700 hover:bg-red-100',
},
warning: {
container: 'bg-yellow-50 border-yellow-200 text-yellow-800',
icon: 'text-yellow-500',
button: 'text-yellow-600 hover:text-yellow-700 hover:bg-yellow-100',
},
info: {
container: 'bg-blue-50 border-blue-200 text-blue-800',
icon: 'text-blue-500',
button: 'text-blue-600 hover:text-blue-700 hover:bg-blue-100',
},
};
export function ErrorMessage({
message,
severity = 'error',
onRetry,
onDismiss,
className,
}: ErrorMessageProps) {
const styles = severityStyles[severity];
return (
<div
className={cn(
'flex items-start gap-3 rounded-lg border p-4',
styles.container,
className
)}
role="alert"
aria-live="polite"
>
{/* Icon */}
<svg
className={cn('h-5 w-5 flex-shrink-0', styles.icon)}
fill="none"
stroke="currentColor"
viewBox="0 0 24 24"
aria-hidden="true"
>
<path
strokeLinecap="round"
strokeLinejoin="round"
strokeWidth={2}
d="M12 9v2m0 4h.01m-6.938 4h13.856c1.54 0 2.502-1.667 1.732-3L13.732 4c-.77-1.333-2.694-1.333-3.464 0L3.34 16c-.77 1.333.192 3 1.732 3z"
/>
</svg>
{/* Message */}
<div className="flex-1 text-sm">
<p>{message}</p>
</div>
{/* Actions */}
<div className="flex items-center gap-2">
{onRetry && (
<button
onClick={onRetry}
className={cn(
'flex items-center gap-1 rounded px-2 py-1 text-xs font-medium transition-colors',
styles.button
)}
>
<svg
className="h-4 w-4"
fill="none"
stroke="currentColor"
viewBox="0 0 24 24"
>
<path
strokeLinecap="round"
strokeLinejoin="round"
strokeWidth={2}
d="M4 4v5h.582m15.356 2A8.001 8.001 0 004.582 9m0 0H9m11 11v-5h-.581m0 0a8.003 8.003 0 01-15.357-2m15.357 2H15"
/>
</svg>
Retry
</button>
)}
{onDismiss && (
<button
onClick={onDismiss}
className={cn(
'rounded p-1 transition-colors',
styles.button
)}
aria-label="Dismiss"
>
<svg
className="h-4 w-4"
fill="none"
stroke="currentColor"
viewBox="0 0 24 24"
>
<path
strokeLinecap="round"
strokeLinejoin="round"
strokeWidth={2}
d="M6 18L18 6M6 6l12 12"
/>
</svg>
</button>
)}
</div>
</div>
);
}
/**
* FullScreenError - Full page error state with icon and actions
*
* @example
* ```tsx
* if (error) {
* return (
* <FullScreenError
* title="Failed to Load"
* message={error.message}
* onRetry={() => refetch()}
* />
* );
* }
* ```
*/
interface FullScreenErrorProps {
title?: string;
message: string;
icon?: 'error' | 'offline' | 'notFound';
onRetry?: () => void;
onBack?: () => void;
retryLabel?: string;
backLabel?: string;
}
const iconPaths = {
error: 'M12 9v2m0 4h.01m-6.938 4h13.856c1.54 0 2.502-1.667 1.732-3L13.732 4c-.77-1.333-2.694-1.333-3.464 0L3.34 16c-.77 1.333.192 3 1.732 3z',
offline: 'M3 15a4 4 0 004 4h9a5 5 0 10-.1-9.999 5.002 5.002 0 10-9.78 2.096A4.001 4.001 0 003 15z',
notFound: 'M9.172 16.172a4 4 0 015.656 0M9 10h.01M15 10h.01M12 12h.01M12 12h.01M21 12a9 9 0 11-18 0 9 9 0 0118 0z',
};
export function FullScreenError({
title = 'Something went wrong',
message,
icon = 'error',
onRetry,
onBack,
retryLabel = 'Try Again',
backLabel = 'Go Back',
}: FullScreenErrorProps) {
return (
<div className="flex min-h-[400px] flex-col items-center justify-center p-8 text-center">
{/* Icon */}
<div className="mb-6 flex h-20 w-20 items-center justify-center rounded-full bg-red-100">
<svg
className="h-10 w-10 text-red-600"
fill="none"
stroke="currentColor"
viewBox="0 0 24 24"
>
<path
strokeLinecap="round"
strokeLinejoin="round"
strokeWidth={2}
d={iconPaths[icon]}
/>
</svg>
</div>
{/* Title */}
<h2 className="mb-2 text-2xl font-semibold text-slate-900">
{title}
</h2>
{/* Message */}
<p className="mb-8 max-w-md text-slate-600">
{message}
</p>
{/* Actions */}
<div className="flex gap-3">
{onRetry && (
<button
onClick={onRetry}
className="flex items-center gap-2 rounded-lg bg-blue-600 px-6 py-3 text-sm font-medium text-white shadow-sm transition-colors hover:bg-blue-700 focus:outline-none focus:ring-2 focus:ring-blue-500 focus:ring-offset-2"
>
<svg
className="h-4 w-4"
fill="none"
stroke="currentColor"
viewBox="0 0 24 24"
>
<path
strokeLinecap="round"
strokeLinejoin="round"
strokeWidth={2}
d="M4 4v5h.582m15.356 2A8.001 8.001 0 004.582 9m0 0H9m11 11v-5h-.581m0 0a8.003 8.003 0 01-15.357-2m15.357 2H15"
/>
</svg>
{retryLabel}
</button>
)}
{onBack && (
<button
onClick={onBack}
className="rounded-lg border border-slate-300 bg-white px-6 py-3 text-sm font-medium text-slate-700 shadow-sm transition-colors hover:bg-slate-50 focus:outline-none focus:ring-2 focus:ring-blue-500 focus:ring-offset-2"
>
{backLabel}
</button>
)}
</div>
</div>
);
}
/**
* FieldError - Inline form field validation error
*
* @example
* ```tsx
* <input type="email" aria-invalid={!!error} />
* {error && <FieldError message={error} />}
* ```
*/
interface FieldErrorProps {
message: string;
className?: string;
}
export function FieldError({ message, className }: FieldErrorProps) {
return (
<p
className={cn('mt-1 flex items-center gap-1 text-sm text-red-600', className)}
role="alert"
>
<svg
className="h-4 w-4 flex-shrink-0"
fill="none"
stroke="currentColor"
viewBox="0 0 24 24"
>
<path
strokeLinecap="round"
strokeLinejoin="round"
strokeWidth={2}
d="M12 8v4m0 4h.01M21 12a9 9 0 11-18 0 9 9 0 0118 0z"
/>
</svg>
<span>{message}</span>
</p>
);
}
/**
* ErrorBoundary fallback component
*
* @example
* ```tsx
* <ErrorBoundary fallback={<ErrorBoundaryFallback />}>
* <App />
* </ErrorBoundary>
* ```
*/
interface ErrorBoundaryFallbackProps {
error?: Error;
resetError?: () => void;
}
export function ErrorBoundaryFallback({
error,
resetError,
}: ErrorBoundaryFallbackProps) {
return (
<FullScreenError
title="Application Error"
message={
error?.message ||
'An unexpected error occurred. Please refresh the page.'
}
onRetry={resetError}
retryLabel="Reload Page"
/>
);
}
/**
* EmptyState - Component for empty data states (not strictly an error)
*
* @example
* ```tsx
* {items.length === 0 && (
* <EmptyState
* title="No items found"
* message="Get started by adding your first item"
* actionLabel="Add Item"
* onAction={() => setShowModal(true)}
* />
* )}
* ```
*/
interface EmptyStateProps {
title: string;
message?: string;
icon?: React.ReactNode;
actionLabel?: string;
onAction?: () => void;
className?: string;
}
export function EmptyState({
title,
message,
icon,
actionLabel,
onAction,
className,
}: EmptyStateProps) {
return (
<div
className={cn(
'flex flex-col items-center justify-center p-8 text-center',
className
)}
>
{/* Icon */}
{icon && (
<div className="mb-4 flex h-16 w-16 items-center justify-center rounded-full bg-slate-100">
{icon}
</div>
)}
{/* Title */}
<h3 className="mb-2 text-lg font-semibold text-slate-900">
{title}
</h3>
{/* Message */}
{message && (
<p className="mb-6 max-w-sm text-sm text-slate-600">
{message}
</p>
)}
{/* Action */}
{actionLabel && onAction && (
<button
onClick={onAction}
className="rounded-lg bg-blue-600 px-4 py-2 text-sm font-medium text-white transition-colors hover:bg-blue-700 focus:outline-none focus:ring-2 focus:ring-blue-500 focus:ring-offset-2"
>
{actionLabel}
</button>
)}
</div>
);
}

View File

@ -0,0 +1,180 @@
/**
* LoadingSpinner - Animated loading spinner for web
*
* Features:
* - Multiple sizes (sm, md, lg, xl)
* - Optional loading message
* - Full-screen mode option
* - Tailwind CSS styling
*
* @example
* ```tsx
* <LoadingSpinner size="md" />
* <LoadingSpinner size="lg" message="Loading data..." />
* <LoadingSpinner fullScreen message="Please wait..." />
* ```
*/
import { cn } from '@/lib/utils';
interface LoadingSpinnerProps {
size?: 'sm' | 'md' | 'lg' | 'xl';
color?: 'primary' | 'white' | 'gray';
message?: string;
fullScreen?: boolean;
className?: string;
}
// Size mapping for spinner
const sizeClasses = {
sm: 'h-4 w-4 border-2',
md: 'h-8 w-8 border-2',
lg: 'h-12 w-12 border-3',
xl: 'h-16 w-16 border-4',
};
// Color mapping for spinner
const colorClasses = {
primary: 'border-blue-600 border-t-transparent',
white: 'border-white border-t-transparent',
gray: 'border-gray-400 border-t-transparent',
};
// Text size mapping
const textSizeClasses = {
sm: 'text-sm',
md: 'text-base',
lg: 'text-lg',
xl: 'text-xl',
};
export function LoadingSpinner({
size = 'md',
color = 'primary',
message,
fullScreen = false,
className,
}: LoadingSpinnerProps) {
const spinner = (
<div
className={cn(
'animate-spin rounded-full',
sizeClasses[size],
colorClasses[color],
className
)}
role="status"
aria-label={message || 'Loading'}
/>
);
if (fullScreen) {
return (
<div className="fixed inset-0 z-50 flex flex-col items-center justify-center bg-white">
{spinner}
{message && (
<p className={cn('mt-4 text-slate-600', textSizeClasses[size])}>
{message}
</p>
)}
</div>
);
}
if (message) {
return (
<div className="flex flex-col items-center justify-center gap-3 p-6">
{spinner}
<p className={cn('text-slate-600', textSizeClasses[size])}>
{message}
</p>
</div>
);
}
return spinner;
}
/**
* LoadingOverlay - Full-screen loading overlay with backdrop
*
* @example
* ```tsx
* {isLoading && (
* <LoadingOverlay message="Saving changes..." />
* )}
* ```
*/
interface LoadingOverlayProps {
message?: string;
backdrop?: 'light' | 'dark' | 'blur';
}
export function LoadingOverlay({
message = 'Loading...',
backdrop = 'blur'
}: LoadingOverlayProps) {
const backdropClasses = {
light: 'bg-white/80',
dark: 'bg-slate-900/80',
blur: 'bg-white/80 backdrop-blur-sm',
};
return (
<div className={cn(
'fixed inset-0 z-50 flex flex-col items-center justify-center',
backdropClasses[backdrop]
)}>
<LoadingSpinner size="lg" />
<p className="mt-4 text-lg font-medium text-slate-700">
{message}
</p>
</div>
);
}
/**
* InlineLoader - Small inline loading indicator
*
* @example
* ```tsx
* <button disabled={isLoading}>
* {isLoading ? <InlineLoader /> : 'Save'}
* </button>
* ```
*/
interface InlineLoaderProps {
className?: string;
}
export function InlineLoader({ className }: InlineLoaderProps) {
return (
<LoadingSpinner
size="sm"
className={cn('inline-block', className)}
/>
);
}
/**
* PageLoader - Full page loading state with centered spinner
*
* @example
* ```tsx
* if (isLoading) return <PageLoader message="Loading dashboard..." />;
* ```
*/
interface PageLoaderProps {
message?: string;
}
export function PageLoader({ message }: PageLoaderProps) {
return (
<div className="flex min-h-[400px] flex-col items-center justify-center">
<LoadingSpinner size="lg" />
{message && (
<p className="mt-4 text-lg text-slate-600">{message}</p>
)}
</div>
);
}

View File

@ -0,0 +1,319 @@
/**
* Skeleton - Loading skeleton components for web
*
* Components:
* - Skeleton: Basic skeleton element
* - SkeletonCard: Card-style skeleton
* - SkeletonList: List of skeleton items
* - SkeletonText: Text skeleton with multiple lines
* - SkeletonAvatar: Avatar/profile picture skeleton
*
* Features:
* - Animated shimmer effect
* - Multiple variants and sizes
* - Composable building blocks
* - Tailwind CSS styling
*
* @example
* ```tsx
* if (isLoading) {
* return <SkeletonCard />;
* }
* ```
*/
import { cn } from '@/lib/utils';
/**
* Skeleton - Base skeleton component with shimmer animation
*/
interface SkeletonProps {
className?: string;
variant?: 'rectangular' | 'circular' | 'text';
}
export function Skeleton({
className,
variant = 'rectangular',
}: SkeletonProps) {
const variantClasses = {
rectangular: 'rounded',
circular: 'rounded-full',
text: 'rounded h-4',
};
return (
<div
className={cn(
'animate-pulse bg-slate-200',
variantClasses[variant],
className
)}
aria-hidden="true"
/>
);
}
/**
* SkeletonAvatar - Avatar skeleton with circular shape
*
* @example
* ```tsx
* <SkeletonAvatar size="lg" />
* ```
*/
interface SkeletonAvatarProps {
size?: 'sm' | 'md' | 'lg' | 'xl';
className?: string;
}
const avatarSizes = {
sm: 'h-8 w-8',
md: 'h-10 w-10',
lg: 'h-12 w-12',
xl: 'h-16 w-16',
};
export function SkeletonAvatar({
size = 'md',
className,
}: SkeletonAvatarProps) {
return (
<Skeleton
variant="circular"
className={cn(avatarSizes[size], className)}
/>
);
}
/**
* SkeletonText - Multi-line text skeleton
*
* @example
* ```tsx
* <SkeletonText lines={3} />
* ```
*/
interface SkeletonTextProps {
lines?: number;
className?: string;
}
export function SkeletonText({ lines = 3, className }: SkeletonTextProps) {
return (
<div className={cn('space-y-2', className)}>
{Array.from({ length: lines }).map((_, i) => (
<Skeleton
key={i}
variant="text"
className={cn(
'h-4',
i === lines - 1 && 'w-3/4' // Last line is shorter
)}
/>
))}
</div>
);
}
/**
* SkeletonCard - Card-style skeleton with header and content
*
* @example
* ```tsx
* {isLoading ? (
* <SkeletonCard />
* ) : (
* <BeneficiaryCard data={data} />
* )}
* ```
*/
interface SkeletonCardProps {
showAvatar?: boolean;
lines?: number;
className?: string;
}
export function SkeletonCard({
showAvatar = true,
lines = 3,
className,
}: SkeletonCardProps) {
return (
<div
className={cn(
'rounded-lg border border-slate-200 bg-white p-6',
className
)}
>
<div className="flex items-start gap-4">
{showAvatar && <SkeletonAvatar size="lg" />}
<div className="flex-1 space-y-3">
<Skeleton className="h-6 w-1/3" />
<SkeletonText lines={lines} />
</div>
</div>
</div>
);
}
/**
* SkeletonList - List of skeleton cards
*
* @example
* ```tsx
* {isLoading ? (
* <SkeletonList count={5} />
* ) : (
* items.map(item => <ItemCard key={item.id} {...item} />)
* )}
* ```
*/
interface SkeletonListProps {
count?: number;
showAvatar?: boolean;
className?: string;
}
export function SkeletonList({
count = 3,
showAvatar = true,
className,
}: SkeletonListProps) {
return (
<div className={cn('space-y-4', className)}>
{Array.from({ length: count }).map((_, i) => (
<SkeletonCard key={i} showAvatar={showAvatar} />
))}
</div>
);
}
/**
* SkeletonTable - Table skeleton with rows and columns
*
* @example
* ```tsx
* {isLoading ? (
* <SkeletonTable rows={5} columns={4} />
* ) : (
* <DataTable data={data} />
* )}
* ```
*/
interface SkeletonTableProps {
rows?: number;
columns?: number;
showHeader?: boolean;
className?: string;
}
export function SkeletonTable({
rows = 5,
columns = 4,
showHeader = true,
className,
}: SkeletonTableProps) {
return (
<div className={cn('overflow-hidden rounded-lg border border-slate-200', className)}>
{/* Header */}
{showHeader && (
<div className="flex gap-4 border-b border-slate-200 bg-slate-50 p-4">
{Array.from({ length: columns }).map((_, i) => (
<Skeleton key={i} className="h-4 flex-1" />
))}
</div>
)}
{/* Rows */}
<div className="divide-y divide-slate-200 bg-white">
{Array.from({ length: rows }).map((_, rowIndex) => (
<div key={rowIndex} className="flex gap-4 p-4">
{Array.from({ length: columns }).map((_, colIndex) => (
<Skeleton key={colIndex} className="h-4 flex-1" />
))}
</div>
))}
</div>
</div>
);
}
/**
* SkeletonDashboard - Dashboard-style skeleton with multiple sections
*
* @example
* ```tsx
* {isLoading ? (
* <SkeletonDashboard />
* ) : (
* <Dashboard data={data} />
* )}
* ```
*/
export function SkeletonDashboard() {
return (
<div className="space-y-6">
{/* Header */}
<div className="flex items-center justify-between">
<Skeleton className="h-8 w-48" />
<Skeleton className="h-10 w-32" />
</div>
{/* Stats grid */}
<div className="grid gap-4 md:grid-cols-2 lg:grid-cols-4">
{Array.from({ length: 4 }).map((_, i) => (
<div key={i} className="rounded-lg border border-slate-200 bg-white p-6">
<Skeleton className="mb-2 h-4 w-24" />
<Skeleton className="h-8 w-16" />
</div>
))}
</div>
{/* Content */}
<div className="grid gap-6 lg:grid-cols-2">
<div className="space-y-4">
<Skeleton className="h-6 w-32" />
<SkeletonCard />
<SkeletonCard />
</div>
<div className="space-y-4">
<Skeleton className="h-6 w-32" />
<SkeletonCard />
<SkeletonCard />
</div>
</div>
</div>
);
}
/**
* SkeletonForm - Form skeleton with fields and button
*
* @example
* ```tsx
* {isLoading ? (
* <SkeletonForm fields={5} />
* ) : (
* <BeneficiaryForm onSubmit={handleSubmit} />
* )}
* ```
*/
interface SkeletonFormProps {
fields?: number;
className?: string;
}
export function SkeletonForm({ fields = 3, className }: SkeletonFormProps) {
return (
<div className={cn('space-y-4', className)}>
{Array.from({ length: fields }).map((_, i) => (
<div key={i} className="space-y-2">
<Skeleton className="h-4 w-24" />
<Skeleton className="h-10 w-full" />
</div>
))}
<Skeleton className="h-10 w-full" />
</div>
);
}

View File

@ -0,0 +1,206 @@
import { render, screen, fireEvent } from '@testing-library/react';
import {
ErrorMessage,
FullScreenError,
FieldError,
EmptyState,
} from '../ErrorMessage';
describe('ErrorMessage Component', () => {
it('renders error message', () => {
render(<ErrorMessage message="Something went wrong" />);
expect(screen.getByText('Something went wrong')).toBeInTheDocument();
});
it('renders with different severity levels', () => {
const { rerender, container } = render(
<ErrorMessage message="Error" severity="error" />
);
let alert = container.querySelector('[role="alert"]');
expect(alert).toHaveClass('bg-red-50', 'border-red-200');
rerender(<ErrorMessage message="Warning" severity="warning" />);
alert = container.querySelector('[role="alert"]');
expect(alert).toHaveClass('bg-yellow-50', 'border-yellow-200');
rerender(<ErrorMessage message="Info" severity="info" />);
alert = container.querySelector('[role="alert"]');
expect(alert).toHaveClass('bg-blue-50', 'border-blue-200');
});
it('calls onRetry when retry button is clicked', () => {
const handleRetry = jest.fn();
render(<ErrorMessage message="Failed to load" onRetry={handleRetry} />);
const retryButton = screen.getByRole('button', { name: /retry/i });
fireEvent.click(retryButton);
expect(handleRetry).toHaveBeenCalledTimes(1);
});
it('calls onDismiss when dismiss button is clicked', () => {
const handleDismiss = jest.fn();
render(<ErrorMessage message="Error" onDismiss={handleDismiss} />);
const dismissButton = screen.getByLabelText('Dismiss');
fireEvent.click(dismissButton);
expect(handleDismiss).toHaveBeenCalledTimes(1);
});
it('renders without action buttons', () => {
render(<ErrorMessage message="Error" />);
expect(screen.queryByRole('button')).not.toBeInTheDocument();
});
it('has proper ARIA attributes', () => {
render(<ErrorMessage message="Error occurred" />);
const alert = screen.getByRole('alert');
expect(alert).toHaveAttribute('aria-live', 'polite');
});
});
describe('FullScreenError Component', () => {
it('renders full screen error with title and message', () => {
render(
<FullScreenError
title="Page Not Found"
message="The page you are looking for does not exist."
/>
);
expect(screen.getByText('Page Not Found')).toBeInTheDocument();
expect(
screen.getByText('The page you are looking for does not exist.')
).toBeInTheDocument();
});
it('uses default title when not provided', () => {
render(<FullScreenError message="An error occurred" />);
expect(screen.getByText('Something went wrong')).toBeInTheDocument();
});
it('calls onRetry when retry button is clicked', () => {
const handleRetry = jest.fn();
render(
<FullScreenError
message="Failed to load"
onRetry={handleRetry}
/>
);
const retryButton = screen.getByRole('button', { name: /try again/i });
fireEvent.click(retryButton);
expect(handleRetry).toHaveBeenCalledTimes(1);
});
it('calls onBack when back button is clicked', () => {
const handleBack = jest.fn();
render(
<FullScreenError
message="Error"
onBack={handleBack}
/>
);
const backButton = screen.getByRole('button', { name: /go back/i });
fireEvent.click(backButton);
expect(handleBack).toHaveBeenCalledTimes(1);
});
it('renders with custom button labels', () => {
render(
<FullScreenError
message="Error"
onRetry={() => {}}
onBack={() => {}}
retryLabel="Reload"
backLabel="Return"
/>
);
expect(screen.getByRole('button', { name: /reload/i })).toBeInTheDocument();
expect(screen.getByRole('button', { name: /return/i })).toBeInTheDocument();
});
it('renders different icon types', () => {
const { container } = render(
<FullScreenError message="Error" icon="offline" />
);
// Check that SVG is rendered
expect(container.querySelector('svg')).toBeInTheDocument();
});
});
describe('FieldError Component', () => {
it('renders field error message', () => {
render(<FieldError message="Email is required" />);
expect(screen.getByText('Email is required')).toBeInTheDocument();
});
it('has proper ARIA role', () => {
render(<FieldError message="Invalid input" />);
const alert = screen.getByRole('alert');
expect(alert).toBeInTheDocument();
});
it('renders with icon', () => {
const { container } = render(<FieldError message="Error" />);
const svg = container.querySelector('svg');
expect(svg).toBeInTheDocument();
});
it('applies custom className', () => {
render(<FieldError message="Error" className="mb-4" />);
const alert = screen.getByRole('alert');
expect(alert).toHaveClass('mb-4');
});
});
describe('EmptyState Component', () => {
it('renders empty state with title', () => {
render(<EmptyState title="No items found" />);
expect(screen.getByText('No items found')).toBeInTheDocument();
});
it('renders with message', () => {
render(
<EmptyState
title="No data"
message="Get started by adding your first item"
/>
);
expect(
screen.getByText('Get started by adding your first item')
).toBeInTheDocument();
});
it('renders action button when provided', () => {
const handleAction = jest.fn();
render(
<EmptyState
title="Empty"
actionLabel="Add Item"
onAction={handleAction}
/>
);
const button = screen.getByRole('button', { name: /add item/i });
expect(button).toBeInTheDocument();
fireEvent.click(button);
expect(handleAction).toHaveBeenCalledTimes(1);
});
it('renders custom icon', () => {
const icon = <div data-testid="custom-icon">Icon</div>;
render(<EmptyState title="Empty" icon={icon} />);
expect(screen.getByTestId('custom-icon')).toBeInTheDocument();
});
it('does not render action button when not provided', () => {
render(<EmptyState title="Empty" />);
expect(screen.queryByRole('button')).not.toBeInTheDocument();
});
});

View File

@ -0,0 +1,114 @@
import { render, screen } from '@testing-library/react';
import {
LoadingSpinner,
LoadingOverlay,
InlineLoader,
PageLoader,
} from '../LoadingSpinner';
describe('LoadingSpinner Component', () => {
it('renders basic spinner', () => {
render(<LoadingSpinner />);
const spinner = screen.getByRole('status');
expect(spinner).toBeInTheDocument();
expect(spinner).toHaveAttribute('aria-label', 'Loading');
});
it('renders with custom message', () => {
render(<LoadingSpinner message="Loading data..." />);
expect(screen.getByText('Loading data...')).toBeInTheDocument();
});
it('renders different sizes', () => {
const { rerender } = render(<LoadingSpinner size="sm" />);
let spinner = screen.getByRole('status');
expect(spinner).toHaveClass('h-4', 'w-4');
rerender(<LoadingSpinner size="lg" />);
spinner = screen.getByRole('status');
expect(spinner).toHaveClass('h-12', 'w-12');
});
it('renders in full screen mode', () => {
render(<LoadingSpinner fullScreen message="Please wait..." />);
const container = screen.getByRole('status').parentElement;
expect(container).toHaveClass('fixed', 'inset-0', 'z-50');
expect(screen.getByText('Please wait...')).toBeInTheDocument();
});
it('applies custom className', () => {
render(<LoadingSpinner className="custom-class" />);
const spinner = screen.getByRole('status');
expect(spinner).toHaveClass('custom-class');
});
it('renders with different colors', () => {
const { rerender } = render(<LoadingSpinner color="primary" />);
let spinner = screen.getByRole('status');
expect(spinner).toHaveClass('border-blue-600');
rerender(<LoadingSpinner color="white" />);
spinner = screen.getByRole('status');
expect(spinner).toHaveClass('border-white');
});
});
describe('LoadingOverlay Component', () => {
it('renders overlay with message', () => {
render(<LoadingOverlay message="Saving changes..." />);
expect(screen.getByText('Saving changes...')).toBeInTheDocument();
});
it('renders with different backdrop styles', () => {
const { rerender, container } = render(<LoadingOverlay backdrop="light" />);
let overlay = container.querySelector('.fixed');
expect(overlay).toHaveClass('bg-white/80');
rerender(<LoadingOverlay backdrop="dark" />);
overlay = container.querySelector('.fixed');
expect(overlay).toHaveClass('bg-slate-900/80');
rerender(<LoadingOverlay backdrop="blur" />);
overlay = container.querySelector('.fixed');
expect(overlay).toHaveClass('backdrop-blur-sm');
});
it('renders as fixed overlay', () => {
const { container } = render(<LoadingOverlay />);
const overlay = container.querySelector('.fixed');
expect(overlay).toHaveClass('inset-0', 'z-50');
});
});
describe('InlineLoader Component', () => {
it('renders inline spinner', () => {
render(<InlineLoader />);
const spinner = screen.getByRole('status');
expect(spinner).toHaveClass('inline-block');
});
it('applies custom className', () => {
render(<InlineLoader className="ml-2" />);
const spinner = screen.getByRole('status');
expect(spinner).toHaveClass('ml-2');
});
});
describe('PageLoader Component', () => {
it('renders page loader', () => {
render(<PageLoader />);
const spinner = screen.getByRole('status');
expect(spinner).toBeInTheDocument();
});
it('renders with message', () => {
render(<PageLoader message="Loading dashboard..." />);
expect(screen.getByText('Loading dashboard...')).toBeInTheDocument();
});
it('has minimum height', () => {
const { container } = render(<PageLoader />);
const wrapper = container.firstChild as HTMLElement;
expect(wrapper).toHaveClass('min-h-[400px]');
});
});

View File

@ -0,0 +1,178 @@
import { render } from '@testing-library/react';
import {
Skeleton,
SkeletonAvatar,
SkeletonText,
SkeletonCard,
SkeletonList,
SkeletonTable,
SkeletonForm,
} from '../Skeleton';
describe('Skeleton Component', () => {
it('renders basic skeleton', () => {
const { container } = render(<Skeleton />);
const skeleton = container.firstChild;
expect(skeleton).toHaveClass('animate-pulse', 'bg-slate-200');
});
it('renders with different variants', () => {
const { rerender, container } = render(<Skeleton variant="rectangular" />);
let skeleton = container.firstChild;
expect(skeleton).toHaveClass('rounded');
rerender(<Skeleton variant="circular" />);
skeleton = container.firstChild;
expect(skeleton).toHaveClass('rounded-full');
rerender(<Skeleton variant="text" />);
skeleton = container.firstChild;
expect(skeleton).toHaveClass('h-4');
});
it('applies custom className', () => {
const { container } = render(<Skeleton className="w-full h-20" />);
const skeleton = container.firstChild;
expect(skeleton).toHaveClass('w-full', 'h-20');
});
it('has aria-hidden attribute', () => {
const { container } = render(<Skeleton />);
const skeleton = container.firstChild;
expect(skeleton).toHaveAttribute('aria-hidden', 'true');
});
});
describe('SkeletonAvatar Component', () => {
it('renders circular skeleton', () => {
const { container } = render(<SkeletonAvatar />);
const avatar = container.firstChild;
expect(avatar).toHaveClass('rounded-full');
});
it('renders with different sizes', () => {
const { rerender, container } = render(<SkeletonAvatar size="sm" />);
let avatar = container.firstChild;
expect(avatar).toHaveClass('h-8', 'w-8');
rerender(<SkeletonAvatar size="lg" />);
avatar = container.firstChild;
expect(avatar).toHaveClass('h-12', 'w-12');
rerender(<SkeletonAvatar size="xl" />);
avatar = container.firstChild;
expect(avatar).toHaveClass('h-16', 'w-16');
});
});
describe('SkeletonText Component', () => {
it('renders default number of lines', () => {
const { container } = render(<SkeletonText />);
const lines = container.querySelectorAll('.h-4');
expect(lines).toHaveLength(3);
});
it('renders custom number of lines', () => {
const { container } = render(<SkeletonText lines={5} />);
const lines = container.querySelectorAll('.h-4');
expect(lines).toHaveLength(5);
});
it('makes last line shorter', () => {
const { container } = render(<SkeletonText lines={2} />);
const lines = container.querySelectorAll('.h-4');
expect(lines[1]).toHaveClass('w-3/4');
});
});
describe('SkeletonCard Component', () => {
it('renders card with avatar by default', () => {
const { container } = render(<SkeletonCard />);
const avatar = container.querySelector('.rounded-full');
expect(avatar).toBeInTheDocument();
});
it('renders without avatar when specified', () => {
const { container } = render(<SkeletonCard showAvatar={false} />);
const avatar = container.querySelector('.rounded-full');
expect(avatar).not.toBeInTheDocument();
});
it('renders custom number of text lines', () => {
const { container } = render(<SkeletonCard lines={5} />);
const textContainer = container.querySelector('.space-y-2');
const lines = textContainer?.querySelectorAll('.h-4');
expect(lines).toHaveLength(5);
});
it('has card styling', () => {
const { container } = render(<SkeletonCard />);
const card = container.firstChild;
expect(card).toHaveClass('rounded-lg', 'border', 'bg-white', 'p-6');
});
});
describe('SkeletonList Component', () => {
it('renders default number of cards', () => {
const { container } = render(<SkeletonList />);
const cards = container.querySelectorAll('.rounded-lg.border');
expect(cards).toHaveLength(3);
});
it('renders custom number of cards', () => {
const { container } = render(<SkeletonList count={5} />);
const cards = container.querySelectorAll('.rounded-lg.border');
expect(cards).toHaveLength(5);
});
it('passes showAvatar prop to cards', () => {
const { container } = render(<SkeletonList showAvatar={false} />);
const avatars = container.querySelectorAll('.rounded-full');
expect(avatars).toHaveLength(0);
});
});
describe('SkeletonTable Component', () => {
it('renders table with header by default', () => {
const { container } = render(<SkeletonTable />);
const header = container.querySelector('.bg-slate-50');
expect(header).toBeInTheDocument();
});
it('renders without header when specified', () => {
const { container } = render(<SkeletonTable showHeader={false} />);
const header = container.querySelector('.bg-slate-50');
expect(header).not.toBeInTheDocument();
});
it('renders correct number of rows and columns', () => {
const { container } = render(<SkeletonTable rows={3} columns={4} />);
const rows = container.querySelectorAll('.divide-y > div');
expect(rows).toHaveLength(3);
const firstRowCells = rows[0].querySelectorAll('.h-4');
expect(firstRowCells).toHaveLength(4);
});
});
describe('SkeletonForm Component', () => {
it('renders default number of fields', () => {
const { container } = render(<SkeletonForm />);
const fields = container.querySelectorAll('.space-y-2');
expect(fields).toHaveLength(3);
});
it('renders custom number of fields', () => {
const { container } = render(<SkeletonForm fields={5} />);
const fields = container.querySelectorAll('.space-y-2');
expect(fields).toHaveLength(5);
});
it('includes submit button skeleton', () => {
const { container } = render(<SkeletonForm />);
// Count all h-10 elements (fields + button)
const elements = container.querySelectorAll('.h-10');
// Should have fields + 1 submit button
expect(elements.length).toBeGreaterThan(3);
});
});

View File

@ -0,0 +1,35 @@
/**
* UI Components Export
*
* Centralized export for all UI components
*/
// Loading components
export {
LoadingSpinner,
LoadingOverlay,
InlineLoader,
PageLoader,
} from './LoadingSpinner';
// Error components
export {
ErrorMessage,
FullScreenError,
FieldError,
ErrorBoundaryFallback,
EmptyState,
type ErrorSeverity,
} from './ErrorMessage';
// Skeleton components
export {
Skeleton,
SkeletonAvatar,
SkeletonText,
SkeletonCard,
SkeletonList,
SkeletonTable,
SkeletonDashboard,
SkeletonForm,
} from './Skeleton';

21
web/lib/utils.ts Normal file
View File

@ -0,0 +1,21 @@
/**
* Utility functions for the web application
*/
import { type ClassValue, clsx } from 'clsx';
import { twMerge } from 'tailwind-merge';
/**
* Merge Tailwind CSS classes with proper precedence
*
* Uses clsx for conditional classes and tailwind-merge to handle conflicts
*
* @example
* ```tsx
* cn('bg-red-500', isActive && 'bg-blue-500') // 'bg-blue-500' if active
* cn('p-4', className) // Merges with user-provided className
* ```
*/
export function cn(...inputs: ClassValue[]) {
return twMerge(clsx(inputs));
}

21
web/package-lock.json generated
View File

@ -8,9 +8,11 @@
"name": "wellnuo-web",
"version": "0.1.0",
"dependencies": {
"clsx": "^2.1.1",
"next": "^16.1.6",
"react": "^19.0.0",
"react-dom": "^19.0.0",
"tailwind-merge": "^3.4.0",
"zustand": "^5.0.2"
},
"devDependencies": {
@ -4044,6 +4046,15 @@
"url": "https://github.com/chalk/wrap-ansi?sponsor=1"
}
},
"node_modules/clsx": {
"version": "2.1.1",
"resolved": "https://registry.npmjs.org/clsx/-/clsx-2.1.1.tgz",
"integrity": "sha512-eYm0QWBtUrBWZWG0d386OGAw16Z995PiOVo2B7bjWSbHedGl5e0ZWaq65kOGgUSNesEIDkB9ISbTg/JK9dhCZA==",
"license": "MIT",
"engines": {
"node": ">=6"
}
},
"node_modules/co": {
"version": "4.6.0",
"resolved": "https://registry.npmjs.org/co/-/co-4.6.0.tgz",
@ -9759,6 +9770,16 @@
"url": "https://opencollective.com/synckit"
}
},
"node_modules/tailwind-merge": {
"version": "3.4.0",
"resolved": "https://registry.npmjs.org/tailwind-merge/-/tailwind-merge-3.4.0.tgz",
"integrity": "sha512-uSaO4gnW+b3Y2aWoWfFpX62vn2sR3skfhbjsEnaBI81WD1wBLlHZe5sWf0AqjksNdYTbGBEd0UasQMT3SNV15g==",
"license": "MIT",
"funding": {
"type": "github",
"url": "https://github.com/sponsors/dcastil"
}
},
"node_modules/tailwindcss": {
"version": "3.4.19",
"resolved": "https://registry.npmjs.org/tailwindcss/-/tailwindcss-3.4.19.tgz",

View File

@ -13,9 +13,11 @@
"test:watch": "jest --watch"
},
"dependencies": {
"clsx": "^2.1.1",
"next": "^16.1.6",
"react": "^19.0.0",
"react-dom": "^19.0.0",
"tailwind-merge": "^3.4.0",
"zustand": "^5.0.2"
},
"devDependencies": {