Improve customer list filtering UI

- Add dedicated filter section with improved styling
- Add debouncing to filter inputs
- Add clear filters functionality
- Add individual clear buttons for text inputs
- Add active filters display
- Improve overall filter section layout

src/app/(admin)/admin/customers/page.tsx

@@ -39,6 +39,15 @@ export default function AdminCustomers() {
     const [page, setPage] = useState(initialPage);
     const [pageSize, setPageSize] = useState(initialPageSize);
 
+    // Search filters state
+    const [filters, setFilters] = useState({
+        name: '',
+        email: '',
+        url: '',
+        hasEmail: false
+    });
+    const [debouncedFilters, setDebouncedFilters] = useState(filters);
+
     // State for data
     const [customers, setCustomers] = useState<Customer[]>([]);
     const [pagination, setPagination] = useState<PaginationInfo>({
@@ -57,11 +66,16 @@ export default function AdminCustomers() {
             setError(null);
 
             try {
-                // Build query string with pagination
+                // Build query string with pagination and filters
                 const params = new URLSearchParams();
                 params.append('page', initialPage.toString());
                 params.append('pageSize', initialPageSize.toString());
 
+                if (debouncedFilters.name) params.append('name', debouncedFilters.name);
+                if (debouncedFilters.email) params.append('email', debouncedFilters.email);
+                if (debouncedFilters.url) params.append('url', debouncedFilters.url);
+                if (debouncedFilters.hasEmail) params.append('hasEmail', 'true');
+
                 const response = await fetch(`/api/customers?${params.toString()}`);
 
                 if (!response.ok) {
@@ -80,7 +94,31 @@ export default function AdminCustomers() {
         };
 
         fetchCustomers();
-    }, [initialPage, initialPageSize]);
+    }, [initialPage, initialPageSize, debouncedFilters]);
+
+    // Debounce filter changes
+    useEffect(() => {
+        const timer = setTimeout(() => {
+            setDebouncedFilters(filters);
+        }, 300);
+
+        return () => clearTimeout(timer);
+    }, [filters]);
+
+    // Handle filter changes
+    const handleFilterChange = (key: keyof typeof filters, value: string | boolean) => {
+        setFilters(prev => ({ ...prev, [key]: value }));
+    };
+
+    // Clear all filters
+    const handleClearFilters = () => {
+        setFilters({
+            name: '',
+            email: '',
+            url: '',
+            hasEmail: false
+        });
+    };
 
     // Handle page change
     const handlePageChange = (newPage: number) => {
@@ -96,8 +134,15 @@ export default function AdminCustomers() {
 
     return (
         <div>
-            <div className="flex justify-between items-center">
+            <div className="flex justify-between items-center mb-4">
+                <div>
                     <h1 className="text-2xl font-semibold text-gray-900 dark:text-gray-100">Customers</h1>
+                    {!isLoading && (
+                        <p className="text-sm text-gray-500 dark:text-gray-400 mt-1">
+                            Total: {pagination.totalCount} customer{pagination.totalCount !== 1 ? 's' : ''}
+                        </p>
+                    )}
+                </div>
                 <Link
                     href="/admin/customers/new"
                     className="inline-flex items-center px-4 py-2 border border-transparent text-sm font-medium rounded-md shadow-sm text-white bg-indigo-600 hover:bg-indigo-700 focus:outline-none focus:ring-2 focus:ring-offset-2 focus:ring-indigo-500"
@@ -106,6 +151,123 @@ export default function AdminCustomers() {
                 </Link>
             </div>
 
+            {/* Search Filters */}
+            <div className="mb-6 bg-white dark:bg-gray-800 shadow rounded-lg p-6">
+                <div className="flex justify-between items-center mb-4">
+                    <h2 className="text-lg font-medium text-gray-900 dark:text-gray-100">Filters</h2>
+                    <button
+                        onClick={handleClearFilters}
+                        className="text-sm text-gray-500 hover:text-gray-700 dark:text-gray-400 dark:hover:text-gray-200"
+                    >
+                        Clear all filters
+                    </button>
+                </div>
+                <div className="grid grid-cols-1 gap-6 sm:grid-cols-2 lg:grid-cols-4">
+                    <div>
+                        <label htmlFor="name-filter" className="block text-sm font-medium text-gray-700 dark:text-gray-300">
+                            Search by Name
+                        </label>
+                        <div className="mt-1 relative rounded-md shadow-sm">
+                            <input
+                                type="text"
+                                id="name-filter"
+                                value={filters.name}
+                                onChange={(e) => handleFilterChange('name', e.target.value)}
+                                className="block w-full rounded-md border-gray-300 pr-10 focus:border-indigo-500 focus:ring-indigo-500 dark:bg-gray-700 dark:border-gray-600 dark:text-white sm:text-sm"
+                                placeholder="Enter name..."
+                            />
+                            {filters.name && (
+                                <button
+                                    onClick={() => handleFilterChange('name', '')}
+                                    className="absolute inset-y-0 right-0 pr-3 flex items-center"
+                                >
+                                    <svg className="h-4 w-4 text-gray-400 hover:text-gray-500" 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>
+                    <div>
+                        <label htmlFor="email-filter" className="block text-sm font-medium text-gray-700 dark:text-gray-300">
+                            Search by Email
+                        </label>
+                        <div className="mt-1 relative rounded-md shadow-sm">
+                            <input
+                                type="text"
+                                id="email-filter"
+                                value={filters.email}
+                                onChange={(e) => handleFilterChange('email', e.target.value)}
+                                className="block w-full rounded-md border-gray-300 pr-10 focus:border-indigo-500 focus:ring-indigo-500 dark:bg-gray-700 dark:border-gray-600 dark:text-white sm:text-sm"
+                                placeholder="Enter email..."
+                            />
+                            {filters.email && (
+                                <button
+                                    onClick={() => handleFilterChange('email', '')}
+                                    className="absolute inset-y-0 right-0 pr-3 flex items-center"
+                                >
+                                    <svg className="h-4 w-4 text-gray-400 hover:text-gray-500" 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>
+                    <div>
+                        <label htmlFor="url-filter" className="block text-sm font-medium text-gray-700 dark:text-gray-300">
+                            Search by URL
+                        </label>
+                        <div className="mt-1 relative rounded-md shadow-sm">
+                            <input
+                                type="text"
+                                id="url-filter"
+                                value={filters.url}
+                                onChange={(e) => handleFilterChange('url', e.target.value)}
+                                className="block w-full rounded-md border-gray-300 pr-10 focus:border-indigo-500 focus:ring-indigo-500 dark:bg-gray-700 dark:border-gray-600 dark:text-white sm:text-sm"
+                                placeholder="Enter URL..."
+                            />
+                            {filters.url && (
+                                <button
+                                    onClick={() => handleFilterChange('url', '')}
+                                    className="absolute inset-y-0 right-0 pr-3 flex items-center"
+                                >
+                                    <svg className="h-4 w-4 text-gray-400 hover:text-gray-500" 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>
+                    <div>
+                        <label className="block text-sm font-medium text-gray-700 dark:text-gray-300 mb-3">
+                            Email Filter
+                        </label>
+                        <div className="flex items-center">
+                            <input
+                                type="checkbox"
+                                id="has-email"
+                                checked={filters.hasEmail}
+                                onChange={(e) => handleFilterChange('hasEmail', e.target.checked)}
+                                className="h-4 w-4 rounded border-gray-300 text-indigo-600 focus:ring-indigo-500 dark:bg-gray-700 dark:border-gray-600"
+                            />
+                            <label htmlFor="has-email" className="ml-2 block text-sm text-gray-700 dark:text-gray-300">
+                                Has Email
+                            </label>
+                        </div>
+                    </div>
+                </div>
+                {(filters.name || filters.email || filters.url || filters.hasEmail) && (
+                    <div className="mt-4 text-sm text-gray-500 dark:text-gray-400">
+                        Active filters: {[
+                            filters.name && 'Name',
+                            filters.email && 'Email',
+                            filters.url && 'URL',
+                            filters.hasEmail && 'Has Email'
+                        ].filter(Boolean).join(', ')}
+                    </div>
+                )}
+            </div>
+
             {/* Error Message */}
             {error && (
                 <div className="bg-red-50 border-l-4 border-red-400 p-4 my-4 dark:bg-red-900/20 dark:border-red-500">

src/app/api/customers/route.ts

@@ -15,9 +15,31 @@ export async function GET(request: NextRequest) {
         const pageSize = parseInt(url.searchParams.get('pageSize') || '10');
         const skip = (page - 1) * pageSize;
 
+        // Get filter parameters
+        const nameFilter = url.searchParams.get('name');
+        const emailFilter = url.searchParams.get('email');
+        const urlFilter = url.searchParams.get('url');
+        const hasEmailFilter = url.searchParams.get('hasEmail');
+
         // Build query
-        let queryBuilder = customerRepository.createQueryBuilder('customer')
-            .orderBy('customer.createdAt', 'DESC');
+        let queryBuilder = customerRepository.createQueryBuilder('customer');
+
+        // Apply filters
+        if (nameFilter) {
+            queryBuilder = queryBuilder.andWhere('LOWER(customer.name) LIKE LOWER(:name)', { name: `%${nameFilter}%` });
+        }
+        if (emailFilter) {
+            queryBuilder = queryBuilder.andWhere('LOWER(customer.email) LIKE LOWER(:email)', { email: `%${emailFilter}%` });
+        }
+        if (urlFilter) {
+            queryBuilder = queryBuilder.andWhere('LOWER(customer.url) LIKE LOWER(:url)', { url: `%${urlFilter}%` });
+        }
+        if (hasEmailFilter === 'true') {
+            queryBuilder = queryBuilder.andWhere('customer.email IS NOT NULL AND customer.email != :emptyString', { emptyString: '' });
+        }
+
+        // Add ordering
+        queryBuilder = queryBuilder.orderBy('customer.createdAt', 'DESC');
 
         // Get total count for pagination
         const totalCount = await queryBuilder.getCount();