"use client";
import {
  ColumnDef,
  SortingState,
  getSortedRowModel,
  flexRender,
  ColumnFiltersState,
  VisibilityState,
  getCoreRowModel,
  getFilteredRowModel,
  useReactTable,
} from "@tanstack/react-table";
import {
  Table,
  TableBody,
  TableCell,
  TableHead,
  TableHeader,
  TableRow,
} from "@/components/ui/table";
import { useState, useEffect } from "react";
import { IoSearch } from "react-icons/io5";
import { FaFilter } from "react-icons/fa";
import { IoIosArrowDown } from "react-icons/io";
import { useRouter } from "next/navigation";
import { FaPlus } from "react-icons/fa6";

interface DataTableProps<TData, TValue> {
  columns: ColumnDef<TData, TValue>[];
  data: TData[];
  searchKey: string;
  showingRow?: number;
}

export function DataTable<TData, TValue>({
  columns,
  data,
  searchKey,
  showingRow = 5,
}: DataTableProps<TData, TValue>) {
  const [columnFilters, setColumnFilters] = useState<ColumnFiltersState>([]);
  const [sorting, setSorting] = useState<SortingState>([]);
  const [columnVisibility, setColumnVisibility] = useState<VisibilityState>({});
  const [open, setOpen] = useState(false);
  const router = useRouter();

  useEffect(() => {
    const defaultVisibility: VisibilityState = {};
    columns.forEach((column, index) => {
      const value = (column as any).accessorKey ?? "";
      if (value) {
        defaultVisibility[value as string] = index < showingRow;
      }
    });
    setColumnVisibility(defaultVisibility);
  }, [columns, showingRow]);

  const table = useReactTable({
    data,
    columns,
    getCoreRowModel: getCoreRowModel(),
    getFilteredRowModel: getFilteredRowModel(),
    getSortedRowModel: getSortedRowModel(),
    onColumnFiltersChange: setColumnFilters,
    onColumnVisibilityChange: setColumnVisibility,
    onSortingChange: setSorting,
    state: {
      columnFilters,
      columnVisibility,
      sorting,
    },
  });

  return (
    <div className="bg-white relative sm:rounded-lg overflow-hidden px-1">
      {/* Search & Filter */}
      <div className="flex flex-col md:flex-row items-center justify-between space-y-3 md:space-y-0 md:space-x-4 p-4">
        <div className="w-full md:w-1/2">
          <form className="flex items-center">
            <label htmlFor={`Search by ${searchKey}`} className="sr-only">
              Search
            </label>
            <div className="relative w-full">
              <div className="absolute inset-y-0 left-0 flex items-center pl-3 pointer-events-none">
                <IoSearch />
              </div>
              <input
                id={`Search by ${searchKey}`}
                placeholder={`Search by ${searchKey}...`}
                value={(table.getColumn(searchKey)?.getFilterValue() as string) ?? ""}
                onChange={(event) =>
                  table.getColumn(searchKey)?.setFilterValue(event.target.value)
                }
                className="bg-gray-50 border border-gray-300 text-gray-900 text-sm rounded-lg focus:ring-primary-500 focus:border-primary-500 block w-full pl-10 p-2"
              />
            </div>
          </form>
        </div>

        <div className="w-full md:w-auto flex flex-col md:flex-row space-y-2 md:space-y-0 items-stretch md:items-center justify-end md:space-x-3 flex-shrink-0">
          <div className="flex items-center space-x-3 w-full md:w-auto relative">
            <button
              type="button"
              className="flex items-center justify-center text-white bg-primary hover:bg-secondary focus:ring-4 focus:ring-primary font-medium rounded-lg text-sm px-4 py-2 focus:outline-none"
              onClick={() => router.push("/admin/sliders/new")}
            >
              <FaPlus className="mr-2" />
              Create Slider
            </button>

            <button
              id="filterDropdownButton"
              onClick={() => setOpen(!open)}
              className="w-full md:w-auto flex items-center justify-center py-2 px-4 text-sm font-medium text-gray-900 focus:outline-none bg-white rounded-lg border border-gray-200 hover:bg-gray-100 hover:text-primary-700 focus:z-10 focus:ring-4 focus:ring-gray-200"
              type="button"
            >
              <FaFilter className="h-4 w-4 mr-2 text-gray-400" />
              Filter
              <IoIosArrowDown className="-mr-1 ml-1.5 w-5 h-5 text-gray-400" />
            </button>

            {open && (
              <div
                id="filterDropdown"
                className="z-10 absolute top-full mt-2 right-0 w-48 p-3 bg-white rounded-lg shadow"
              >
                <h6 className="mb-3 text-sm font-medium text-gray-900">
                  Toggle columns
                </h6>
                <ul className="space-y-2 text-sm" aria-labelledby="filterDropdownButton">
                  {table
                    .getAllColumns()
                    .filter((column) => column.getCanHide())
                    .map((column) => (
                      <li key={column.id} className="flex items-center">
                        <input
                          id={`column-${column.id}`}
                          type="checkbox"
                          checked={column.getIsVisible()}
                          onChange={(e) => column.toggleVisibility(e.target.checked)}
                          className="w-4 h-4 bg-gray-100 border-gray-300 rounded text-primary-600 focus:ring-primary-500 focus:ring-2"
                        />
                        <label
                          htmlFor={`column-${column.id}`}
                          className="ml-2 text-sm font-medium text-gray-900 capitalize"
                        >
                          {column.id}
                        </label>
                      </li>
                    ))}
                </ul>
              </div>
            )}
          </div>
        </div>
      </div>

      {/* Table */}
      <div className="min-h-screen">
        <Table>
          <TableHeader>
            {table.getHeaderGroups().map((headerGroup) => (
              <TableRow key={headerGroup.id}>
                {headerGroup.headers.map((header) => (
                  <TableHead key={header.id}>
                    {header.isPlaceholder
                      ? null
                      : flexRender(header.column.columnDef.header, header.getContext())}
                  </TableHead>
                ))}
              </TableRow>
            ))}
          </TableHeader>

          <TableBody>
            {table.getRowModel().rows?.length ? (
              table.getRowModel().rows.map((row) => (
                <TableRow key={row.id} data-state={row.getIsSelected() && "selected"}>
                  {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 found.
                </TableCell>
              </TableRow>
            )}
          </TableBody>
        </Table>
      </div>
    </div>
  );
}