"use client";

import * as React from "react";
import {
  ColumnDef,
  ColumnFiltersState,
  SortingState,
  VisibilityState,
  flexRender,
  getCoreRowModel,
  getFilteredRowModel,
  getPaginationRowModel,
  getSortedRowModel,
  useReactTable,
} from "@tanstack/react-table";
import { ChevronLeft, ChevronRight, ChevronsLeft, ChevronsRight } from "lucide-react";

import {
  Table,
  TableBody,
  TableCell,
  TableHead,
  TableHeader,
  TableRow,
} from "@/components/ui/table";
import { Button } from "@/components/ui/button";
import {
  Select,
  SelectContent,
  SelectItem,
  SelectTrigger,
  SelectValue,
} from "@/components/ui/select";

export interface ColumnVisibilityInfo {
  id: string;
  isVisible: boolean;
  canHide: boolean;
  toggleVisibility: (visible: boolean) => void;
}

export interface TableInfo<TData> {
  selectedCount: number;
  getSelectedRows: () => TData[];
  getAllVisibleRows: () => TData[];
  columns: ColumnVisibilityInfo[];
}

interface DataTableProps<TData, TValue> {
  columns: ColumnDef<TData, TValue>[];
  data: TData[];
  searchKey?: string;
  searchValue?: string;
  onTableChange?: (info: TableInfo<TData>) => void;
}

export function DataTable<TData, TValue>({
  columns,
  data,
  searchKey,
  searchValue,
  onTableChange,
}: DataTableProps<TData, TValue>) {
  const [sorting, setSorting] = React.useState<SortingState>([]);
  const [columnFilters, setColumnFilters] = React.useState<ColumnFiltersState>([]);
  const [columnVisibility, setColumnVisibility] = React.useState<VisibilityState>({});
  const [rowSelection, setRowSelection] = React.useState({});

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

  // Notificar cambios al componente padre
  React.useEffect(() => {
    if (onTableChange) {
      const columnsInfo: ColumnVisibilityInfo[] = table
        .getAllColumns()
        .filter((column) => typeof column.accessorFn !== "undefined")
        .map((column) => ({
          id: column.id,
          isVisible: column.getIsVisible(),
          canHide: column.getCanHide(),
          toggleVisibility: (visible: boolean) => {
            setColumnVisibility((prev) => ({
              ...prev,
              [column.id]: visible,
            }));
          },
        }));

      onTableChange({
        selectedCount: table.getFilteredSelectedRowModel().rows.length,
        getSelectedRows: () => table.getFilteredSelectedRowModel().rows.map((row) => row.original),
        getAllVisibleRows: () => table.getFilteredRowModel().rows.map((row) => row.original),
        columns: columnsInfo,
      });
    }
  }, [table, onTableChange, columnVisibility, rowSelection]);

  // Aplicar filtro de búsqueda externo
  React.useEffect(() => {
    if (searchKey && searchValue !== undefined) {
      table.getColumn(searchKey)?.setFilterValue(searchValue);
    }
  }, [searchKey, searchValue, table]);

  return (
    <div className="min-w-0 space-y-4">
      {/* Tabla */}
      <div className="min-w-0 rounded-md border">
        <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 se encontraron resultados.
                </TableCell>
              </TableRow>
            )}
          </TableBody>
        </Table>
      </div>

      {/* Paginación */}
      <div className="flex items-center justify-between px-2">
        <div className="flex-1 text-sm text-muted-foreground">
          {table.getFilteredSelectedRowModel().rows.length} de{" "}
          {table.getFilteredRowModel().rows.length} fila(s) seleccionada(s).
        </div>
        <div className="flex items-center space-x-6 lg:space-x-8">
          <div className="flex items-center space-x-2">
            <p className="text-sm font-medium">Filas por página</p>
            <Select
              value={`${table.getState().pagination.pageSize}`}
              onValueChange={(value) => {
                table.setPageSize(Number(value));
              }}
            >
              <SelectTrigger className="h-8 w-[70px]">
                <SelectValue placeholder={table.getState().pagination.pageSize} />
              </SelectTrigger>
              <SelectContent side="top">
                {[10, 20, 30, 40, 50].map((pageSize) => (
                  <SelectItem key={pageSize} value={`${pageSize}`}>
                    {pageSize}
                  </SelectItem>
                ))}
              </SelectContent>
            </Select>
          </div>
          <div className="flex w-[100px] items-center justify-center text-sm font-medium">
            Página {table.getState().pagination.pageIndex + 1} de{" "}
            {table.getPageCount()}
          </div>
          <div className="flex items-center space-x-2">
            <Button
              variant="outline"
              className="hidden h-8 w-8 p-0 lg:flex"
              onClick={() => table.setPageIndex(0)}
              disabled={!table.getCanPreviousPage()}
            >
              <span className="sr-only">Ir a la primera página</span>
              <ChevronsLeft className="h-4 w-4" />
            </Button>
            <Button
              variant="outline"
              className="h-8 w-8 p-0"
              onClick={() => table.previousPage()}
              disabled={!table.getCanPreviousPage()}
            >
              <span className="sr-only">Ir a la página anterior</span>
              <ChevronLeft className="h-4 w-4" />
            </Button>
            <Button
              variant="outline"
              className="h-8 w-8 p-0"
              onClick={() => table.nextPage()}
              disabled={!table.getCanNextPage()}
            >
              <span className="sr-only">Ir a la siguiente página</span>
              <ChevronRight className="h-4 w-4" />
            </Button>
            <Button
              variant="outline"
              className="hidden h-8 w-8 p-0 lg:flex"
              onClick={() => table.setPageIndex(table.getPageCount() - 1)}
              disabled={!table.getCanNextPage()}
            >
              <span className="sr-only">Ir a la última página</span>
              <ChevronsRight className="h-4 w-4" />
            </Button>
          </div>
        </div>
      </div>
    </div>
  );
}