"use client";

import {
  ColumnDef,
  flexRender,
  getCoreRowModel,
  getSortedRowModel,
  getPaginationRowModel,
  SortingState,
  useReactTable,
} from "@tanstack/react-table";
import {
  Table,
  TableBody,
  TableCell,
  TableHead,
  TableHeader,
  TableRow,
} from "@/components/ui/table";
import { Button } from "@/components/ui/button";
import { useState } from "react";
import { ChevronLeft, ChevronRight, ChevronsUpDown, ChevronUp, ChevronDown } from "lucide-react";

interface DataTableProps<TData, TValue> {
  columns: ColumnDef<TData, TValue>[];
  data: TData[];
  onRowClick?: (row: TData) => void;
}

export function DataTable<TData, TValue>({
  columns,
  data,
  onRowClick,
}: DataTableProps<TData, TValue>) {
  const [sorting, setSorting] = useState<SortingState>([]);

  const table = useReactTable({
    data,
    columns,
    getCoreRowModel: getCoreRowModel(),
    getSortedRowModel: getSortedRowModel(),
    getPaginationRowModel: getPaginationRowModel(),
    onSortingChange: setSorting,
    state: { sorting },
    initialState: { pagination: { pageSize: 15 } },
  });

  return (
    <div>
      <div className="rounded-md border">
        <Table>
          <TableHeader>
            {table.getHeaderGroups().map((headerGroup) => (
              <TableRow key={headerGroup.id}>
                {headerGroup.headers.map((header) => (
                  <TableHead
                    key={header.id}
                    className={header.column.getCanSort() ? "cursor-pointer select-none" : ""}
                    onClick={header.column.getToggleSortingHandler()}
                  >
                    <div className="flex items-center gap-1">
                      {header.isPlaceholder
                        ? null
                        : flexRender(header.column.columnDef.header, header.getContext())}
                      {header.column.getCanSort() && (
                        <span className="ml-1">
                          {header.column.getIsSorted() === "asc" ? (
                            <ChevronUp className="h-3 w-3" />
                          ) : header.column.getIsSorted() === "desc" ? (
                            <ChevronDown className="h-3 w-3" />
                          ) : (
                            <ChevronsUpDown className="h-3 w-3 text-muted-foreground/50" />
                          )}
                        </span>
                      )}
                    </div>
                  </TableHead>
                ))}
              </TableRow>
            ))}
          </TableHeader>
          <TableBody>
            {table.getRowModel().rows?.length ? (
              table.getRowModel().rows.map((row) => (
                <TableRow
                  key={row.id}
                  className={onRowClick ? "cursor-pointer" : ""}
                  onClick={() => onRowClick?.(row.original)}
                >
                  {row.getVisibleCells().map((cell) => (
                    <TableCell key={cell.id}>
                      {flexRender(cell.column.columnDef.cell, cell.getContext())}
                    </TableCell>
                  ))}
                </TableRow>
              ))
            ) : (
              <TableRow>
                <TableCell colSpan={columns.length} className="h-24 text-center">
                  No results.
                </TableCell>
              </TableRow>
            )}
          </TableBody>
        </Table>
      </div>
      <div className="flex items-center justify-between py-4">
        <p className="text-sm text-muted-foreground">
          {table.getFilteredRowModel().rows.length} row(s)
        </p>
        <div className="flex gap-2">
          <Button
            variant="outline"
            size="sm"
            onClick={() => table.previousPage()}
            disabled={!table.getCanPreviousPage()}
          >
            <ChevronLeft className="h-4 w-4" />
          </Button>
          <Button
            variant="outline"
            size="sm"
            onClick={() => table.nextPage()}
            disabled={!table.getCanNextPage()}
          >
            <ChevronRight className="h-4 w-4" />
          </Button>
        </div>
      </div>
    </div>
  );
}