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import {
Table,
TableBody,
TableCell,
TableHead,
TableHeader,
TableRow,
} from '@/components/ui/table';
import {
Select,
SelectContent,
SelectItem,
SelectTrigger,
SelectValue,
} from '@/components/ui/select';
import {
Pagination,
PaginationContent,
PaginationEllipsis,
PaginationItem,
PaginationLink,
PaginationNext,
PaginationPrevious,
} from '@/components/ui/pagination';
import { Button } from '@/components/ui/button';
import { Switch } from '@/components/ui/switch';
import { ArrowUpDown, RefreshCw, Loader2 } from 'lucide-react';
import { cn } from '@/lib/utils';
import { useEffect, useRef } from 'react';
export interface Column<T> {
header: string | React.ReactNode;
accessorKey?: keyof T;
render?: (item: T) => React.ReactNode;
sortable?: boolean;
className?: string; // For setting width or alignment
frozen?: 'left' | 'right'; // Sticky column position
frozenOffset?: number; // px offset for left-frozen columns (cumulative width of preceding frozen cols)
frozenBorderRight?: boolean; // Show right border/shadow on last left-frozen column
headerSuffix?: React.ReactNode; // Extra content rendered after header text, outside the sort button
style?: React.CSSProperties; // Additional cell styles (e.g. minWidth, maxWidth)
}
export interface DispatchPagination {
page: number;
pageSize: number;
onPageChange: (page: number) => void;
onPageSizeChange: (pageSize: number) => void;
}
export interface DispatchSorting {
sortBy: string;
sortOrder: 'asc' | 'desc';
onSort: (column: string) => void;
}
interface DataTableProps<T> {
data: T[];
columns: Column<T>[];
keyExtractor: (item: T) => string | number;
isLoading?: boolean;
totalItems?: number; // Total items in DB for server-side pagination
pagination?: DispatchPagination;
sorting?: DispatchSorting;
onRowClick?: (item: T) => void;
noDataMessage?: string;
// Cursor pagination props
paginationMode?: 'page' | 'scroll';
hasMore?: boolean;
onLoadMore?: () => void;
isLoadingMore?: boolean;
onPaginationModeChange?: (mode: 'page' | 'scroll') => void;
autoLoad?: boolean;
onAutoLoadChange?: (enabled: boolean) => void;
showModeToggle?: boolean; // Show Page/Scroll toggle (default: false)
maxTableHeight?: string; // Max height before scroll kicks in (default: '600px')
minTableHeight?: string; // Min height when data is empty/sparse (default: '180px')
}
export function DataTable<T>({
data,
columns,
keyExtractor,
isLoading = false,
totalItems = 0,
pagination,
sorting,
onRowClick,
noDataMessage = 'No data found',
paginationMode = 'page',
hasMore = false,
onLoadMore,
isLoadingMore = false,
onPaginationModeChange,
autoLoad = false,
onAutoLoadChange,
showModeToggle = false,
maxTableHeight = '600px',
minTableHeight = '180px',
}: DataTableProps<T>) {
const sentinelRef = useRef<HTMLDivElement>(null);
const scrollContainerRef = useRef<HTMLDivElement>(null);
// Stable callback ref so the observer doesn't re-register on every render
const onLoadMoreRef = useRef(onLoadMore);
useEffect(() => { onLoadMoreRef.current = onLoadMore; }, [onLoadMore]);
// Infinite scroll IntersectionObserver — sentinel lives inside the scroll container
useEffect(() => {
Eif (paginationMode !== 'scroll' || !autoLoad || !hasMore || !sentinelRef.current || !scrollContainerRef.current) {
return;
}
const observer = new IntersectionObserver(
(entries) => {
if (entries[0].isIntersecting && hasMore && !isLoadingMore && onLoadMoreRef.current) {
onLoadMoreRef.current();
}
},
{ threshold: 0.1, root: scrollContainerRef.current }
);
observer.observe(sentinelRef.current);
return () => observer.disconnect();
}, [paginationMode, autoLoad, hasMore, isLoadingMore]);
// Compute sticky style for frozen columns
const getCellStyle = (col: Column<T>): React.CSSProperties => {
const frozenStyle: React.CSSProperties =
col.frozen === 'left' ? { position: 'sticky', left: col.frozenOffset ?? 0, zIndex: 10 }
: col.frozen === 'right' ? { position: 'sticky', right: 0, zIndex: 10 }
: {};
return { ...col.style, ...frozenStyle };
};
// Background + optional right border for frozen columns
const getFrozenClass = (col: Column<T>) =>
col.frozen
? cn('bg-background', col.frozenBorderRight && 'border-r shadow-[1px_0_4px_0_hsl(var(--border))]')
: '';
// Helper to resolve cell content
const renderCell = (item: T, column: Column<T>) => {
if (column.render) {
return column.render(item);
}
if (column.accessorKey) {
return item[column.accessorKey] as React.ReactNode;
}
return null;
};
// Calculate pagination values
const currentPage = pagination?.page || 1;
const pageSize = pagination?.pageSize || 10;
const totalPages = Math.ceil(totalItems / pageSize) || 1;
// Pagination helpers
const canGoPrevious = currentPage > 1;
const canGoNext = currentPage < totalPages;
const showingStart = totalItems === 0 ? 0 : (currentPage - 1) * pageSize + 1;
const showingEnd = Math.min(currentPage * pageSize, totalItems);
const handleSort = (column: Column<T>) => {
Eif (sorting && column.sortable && column.accessorKey) {
sorting.onSort(String(column.accessorKey));
}
};
return (
<div className="space-y-4">
{/* Table container: grows with content up to maxTableHeight, scrollable beyond that */}
<div className="rounded-md border overflow-hidden flex flex-col" style={{ minHeight: minTableHeight, maxHeight: maxTableHeight }}>
<div ref={scrollContainerRef} className="overflow-x-auto overflow-y-auto flex-1">
<Table>
<TableHeader className="sticky top-0 z-20 bg-background">
<TableRow>
{columns.map((col, index) => (
<TableHead
key={index}
className={cn(col.className, getFrozenClass(col), 'group')}
style={getCellStyle(col)}
>
<div className="flex items-center">
{sorting && col.sortable ? (
<Button
variant="ghost"
onClick={() => handleSort(col)}
className="-ml-4 h-8 px-4 data-[state=open]:bg-accent hover:bg-transparent hover:text-primary"
>
{col.header}
{sorting.sortBy === col.accessorKey ? (
<ArrowUpDown className={`ml-2 h-4 w-4 transform ${sorting.sortOrder === 'asc' ? 'rotate-180' : ''}`} />
) : (
<ArrowUpDown className="ml-2 h-4 w-4 opacity-50" />
)}
</Button>
) : (
col.header
)}
{col.headerSuffix}
</div>
</TableHead>
))}
</TableRow>
</TableHeader>
<TableBody>
{isLoading ? (
<TableRow>
<TableCell colSpan={columns.length} className="h-24 text-center">
<div className="flex items-center justify-center py-4">
<RefreshCw className="h-6 w-6 animate-spin text-muted-foreground" />
</div>
</TableCell>
</TableRow>
) : data.length === 0 ? (
<TableRow>
<TableCell colSpan={columns.length} className="h-24 text-center text-muted-foreground">
{noDataMessage}
</TableCell>
</TableRow>
) : (
data.map((item) => (
<TableRow
key={keyExtractor(item)}
onClick={() => onRowClick && onRowClick(item)}
className={onRowClick ? "cursor-pointer hover:bg-muted/50" : ""}
>
{columns.map((col, cIndex) => (
<TableCell
key={cIndex}
className={cn(col.className, getFrozenClass(col))}
style={getCellStyle(col)}
>
{renderCell(item, col)}
</TableCell>
))}
</TableRow>
))
)}
</TableBody>
</Table>
{/* Infinite scroll sentinel — inside the scroll container so it's observed on table scroll */}
{paginationMode === 'scroll' && (
<div ref={sentinelRef} className="h-1" />
)}
</div>
</div>
{/* Pagination Controls */}
{pagination && totalItems > 0 && paginationMode === 'page' && (
<div className="flex flex-col-reverse gap-4 sm:flex-row sm:items-center sm:justify-between">
<div className="flex items-center space-x-2 text-sm text-muted-foreground">
<span>Rows per page</span>
<Select
value={`${pageSize}`}
onValueChange={(value) => {
pagination.onPageSizeChange(Number(value));
}}
>
<SelectTrigger className="h-8 w-[70px]">
<SelectValue placeholder={pageSize} />
</SelectTrigger>
<SelectContent side="top">
{[10, 20, 30, 40, 50, 100].map((size) => (
<SelectItem key={size} value={`${size}`}>
{size}
</SelectItem>
))}
</SelectContent>
</Select>
{/* Pagination Mode Toggle - only show if explicitly enabled */}
{showModeToggle && (
<div className="flex items-center border rounded-md ml-4">
<Button
variant={paginationMode === 'page' ? 'default' : 'ghost'}
size="sm"
onClick={() => onPaginationModeChange?.('page')}
className="rounded-none border-r"
>
Page
</Button>
<Button
variant={paginationMode === 'scroll' ? 'default' : 'ghost'}
size="sm"
onClick={() => onPaginationModeChange?.('scroll')}
className="rounded-none"
>
Scroll
</Button>
</div>
)}
<span className="hidden md:inline-block ml-4">
Showing {showingStart} to {showingEnd} of {totalItems} entries
</span>
</div>
<div className="flex items-center justify-center sm:justify-end">
<div className="md:hidden text-sm text-muted-foreground mr-4">
{currentPage} / {totalPages}
</div>
<Pagination>
<PaginationContent>
<PaginationItem>
<PaginationPrevious
onClick={() => canGoPrevious && pagination.onPageChange(currentPage - 1)}
className={!canGoPrevious ? 'pointer-events-none opacity-50' : 'cursor-pointer'}
/>
</PaginationItem>
{/* Simple logic for now: show surrounding pages */}
{(() => {
const items = [];
// Always show first
Eif (totalPages > 0) {
// If many pages, logic needed
}
/* Simplified Logic for generic component */
// Always show Page 1
if (totalPages > 1) {
items.push(1);
}
// If current is far from 1, ellipsis
Iif (currentPage > 3) items.push('e1');
// Surrounding
for (let i = Math.max(2, currentPage - 1); i <= Math.min(totalPages - 1, currentPage + 1); i++) {
items.push(i);
}
// If current is far from end, ellipsis
Iif (currentPage < totalPages - 2) items.push('e2');
// Always show last
items.push(totalPages);
// Dedup and single page case
const uniqueItems = Array.from(new Set(items));
// Basic 1..N if totalPages is small
const renderList = totalPages <= 7
? Array.from({ length: totalPages }, (_, i) => i + 1)
: uniqueItems;
return renderList.map((p, idx) => {
Iif (p === 'e1' || p === 'e2') {
return (
<PaginationItem key={`ellipsis-${idx}`}>
<PaginationEllipsis />
</PaginationItem>
);
}
const pageNum = p as number;
return (
<PaginationItem key={pageNum} className="hidden sm:inline-block">
<PaginationLink
isActive={currentPage === pageNum}
onClick={() => pagination.onPageChange(pageNum)}
className="cursor-pointer"
>
{pageNum}
</PaginationLink>
</PaginationItem>
);
});
})()}
<PaginationItem>
<PaginationNext
onClick={() => canGoNext && pagination.onPageChange(currentPage + 1)}
className={!canGoNext ? 'pointer-events-none opacity-50' : 'cursor-pointer'}
/>
</PaginationItem>
</PaginationContent>
</Pagination>
</div>
</div>
)}
{/* Scroll Mode Controls */}
{paginationMode === 'scroll' && data.length > 0 && (
<div className="flex flex-col-reverse gap-4 sm:flex-row sm:items-center sm:justify-between">
<div className="flex items-center space-x-2 text-sm text-muted-foreground">
{/* Show Mode Toggle only if explicitly enabled */}
{showModeToggle && (
<div className="flex items-center border rounded-md">
<Button
variant={paginationMode === 'page' ? 'default' : 'ghost'}
size="sm"
onClick={() => onPaginationModeChange?.('page')}
className="rounded-none border-r"
>
Page
</Button>
<Button
variant={paginationMode === 'scroll' ? 'default' : 'ghost'}
size="sm"
onClick={() => onPaginationModeChange?.('scroll')}
className="rounded-none"
>
Scroll
</Button>
</div>
)}
<span className="hidden md:inline-block text-muted-foreground">
Loaded {data.length} records{hasMore ? ' (more available)' : ' (all loaded)'}
</span>
</div>
<div className="flex items-center gap-3 flex-wrap">
<div className="flex items-center gap-2">
<span className="text-sm text-muted-foreground">Auto-load</span>
<Switch
checked={autoLoad}
onCheckedChange={onAutoLoadChange}
disabled={!hasMore || isLoadingMore}
/>
</div>
{hasMore && (
<Button
variant="outline"
size="sm"
onClick={onLoadMore}
disabled={isLoadingMore}
className="gap-2"
>
{isLoadingMore ? (
<>
<Loader2 className="h-4 w-4 animate-spin" />
Loading...
</>
) : (
'Load More'
)}
</Button>
)}
</div>
</div>
)}
</div>
);
}
|