"use client";

import * as React from "react";
import Box from "@mui/material/Box";
import Table from "@mui/material/Table";
import TableBody from "@mui/material/TableBody";
import TableCell from "@mui/material/TableCell";
import TableContainer from "@mui/material/TableContainer";
import TableHead from "@mui/material/TableHead";
import TableRow from "@mui/material/TableRow";
import TableSortLabel from "@mui/material/TableSortLabel";
import { visuallyHidden } from "@mui/utils";
import { NodeRow } from "./nodeRow";

import { TableData } from "@/data/nodeData";

import { useMediaQuery, useTheme } from "@mui/material";

interface HeadCell {
  disablePadding: boolean;
  id: keyof TableData;
  label: string;
  alignRight: boolean;
}

const headCells: readonly HeadCell[] = [
  {
    id: "name",
    alignRight: false,
    disablePadding: false,
    label: "DISPLAY NAME & ID",
  },
  {
    id: "status",
    alignRight: false,
    disablePadding: false,
    label: "STATUS",
  },
  {
    id: "last_seen",
    alignRight: false,
    disablePadding: false,
    label: "LAST SEEN",
  },
];

function descendingComparator<T>(a: T, b: T, orderBy: keyof T) {
  if (b[orderBy] < a[orderBy]) {
    return -1;
  }
  if (b[orderBy] > a[orderBy]) {
    return 1;
  }
  return 0;
}

export type NodeOrder = "asc" | "desc";

function getComparator<Key extends keyof any>(
  order: NodeOrder,
  orderBy: Key,
): (
  a: { [key in Key]: number | string | boolean },
  b: { [key in Key]: number | string | boolean },
) => number {
  return order === "desc"
    ? (a, b) => descendingComparator(a, b, orderBy)
    : (a, b) => -descendingComparator(a, b, orderBy);
}

// Since 2020 all major browsers ensure sort stability with Array.prototype.sort().
// stableSort() brings sort stability to non-modern browsers (notably IE11). If you
// only support modern browsers you can replace stableSort(exampleArray, exampleComparator)
// with exampleArray.slice().sort(exampleComparator)
function stableSort<T>(
  array: readonly T[],
  comparator: (a: T, b: T) => number,
) {
  const stabilizedThis = array.map((el, index) => [el, index] as [T, number]);
  stabilizedThis.sort((a, b) => {
    const order = comparator(a[0], b[0]);
    if (order !== 0) {
      return order;
    }
    return a[1] - b[1];
  });
  return stabilizedThis.map((el) => el[0]);
}

interface EnhancedTableProps {
  onRequestSort: (
    event: React.MouseEvent<unknown>,
    property: keyof TableData,
  ) => void;
  order: NodeOrder;
  orderBy: string;
  rowCount: number;
}

function EnhancedTableHead(props: EnhancedTableProps) {
  const { order, orderBy, onRequestSort } = props;
  const createSortHandler =
    (property: keyof TableData) => (event: React.MouseEvent<unknown>) => {
      onRequestSort(event, property);
    };

  return (
    <TableHead>
      <TableRow>
        <TableCell id="dropdown" colSpan={1} />
        {headCells.map((headCell) => (
          <TableCell
            key={headCell.id}
            align={headCell.alignRight ? "right" : "left"}
            padding={headCell.disablePadding ? "none" : "normal"}
            sortDirection={orderBy === headCell.id ? order : false}
          >
            <TableSortLabel
              active={orderBy === headCell.id}
              direction={orderBy === headCell.id ? order : "asc"}
              onClick={createSortHandler(headCell.id)}
            >
              {headCell.label}
              {orderBy === headCell.id ? (
                <Box component="span" sx={visuallyHidden}>
                  {order === "desc" ? "sorted descending" : "sorted ascending"}
                </Box>
              ) : null}
            </TableSortLabel>
          </TableCell>
        ))}
      </TableRow>
    </TableHead>
  );
}

interface NodeTableContainerProps {
  tableData: readonly TableData[];
  page: number;
  rowsPerPage: number;
  dense: boolean;
  selected: string | undefined;
  setSelected: React.Dispatch<React.SetStateAction<string | undefined>>;
}

export function NodeTableContainer(props: NodeTableContainerProps) {
  const { tableData, page, rowsPerPage, dense, selected, setSelected } = props;
  const [order, setOrder] = React.useState<NodeOrder>("asc");
  const [orderBy, setOrderBy] = React.useState<keyof TableData>("status");

  const theme = useTheme();
  const is_phone = useMediaQuery(theme.breakpoints.down("sm"));

  // Avoid a layout jump when reaching the last page with empty rows.
  const emptyRows =
    page > 0 ? Math.max(0, (1 + page) * rowsPerPage - tableData.length) : 0;

  const handleRequestSort = (
    event: React.MouseEvent<unknown>,
    property: keyof TableData,
  ) => {
    const isAsc = orderBy === property && order === "asc";
    setOrder(isAsc ? "desc" : "asc");
    setOrderBy(property);
  };

  const visibleRows = React.useMemo(
    () =>
      stableSort(tableData, getComparator(order, orderBy)).slice(
        page * rowsPerPage,
        page * rowsPerPage + rowsPerPage,
      ),
    [order, orderBy, page, rowsPerPage, tableData],
  );
  return (
    <TableContainer>
      <Table aria-labelledby="tableTitle" size={dense ? "small" : "medium"}>
        <EnhancedTableHead
          order={order}
          orderBy={orderBy}
          onRequestSort={handleRequestSort}
          rowCount={tableData.length}
        />
        <TableBody>
          {visibleRows.map((row, index) => {
            return (
              <NodeRow
                key={row.name}
                row={row}
                selected={selected}
                setSelected={setSelected}
              />
            );
          })}
          {emptyRows > 0 && (
            <TableRow
              style={{
                height: (dense ? 33 : 53) * emptyRows,
              }}
            >
              <TableCell colSpan={6} />
            </TableRow>
          )}
        </TableBody>
      </Table>
    </TableContainer>
  );
}