import * as React from 'react';
import PropTypes from 'prop-types';
import Box from '@mui/joy/Box';
import Table from '@mui/joy/Table';
import Typography from '@mui/joy/Typography';
import Sheet from '@mui/joy/Sheet';
import Checkbox from '@mui/joy/Checkbox';
import FormControl from '@mui/joy/FormControl';
import FormLabel from '@mui/joy/FormLabel';
import IconButton from '@mui/joy/IconButton';
import Link from '@mui/joy/Link';
import Tooltip from '@mui/joy/Tooltip';
import Select from '@mui/joy/Select';
import Option from '@mui/joy/Option';
import DeleteIcon from '@mui/icons-material/Delete';
import FilterListIcon from '@mui/icons-material/FilterList';
import KeyboardArrowLeftIcon from '@mui/icons-material/KeyboardArrowLeft';
import KeyboardArrowRightIcon from '@mui/icons-material/KeyboardArrowRight';
import ArrowDownwardIcon from '@mui/icons-material/ArrowDownward';
import { visuallyHidden } from '@mui/utils';

function createData(name, calories, fat, carbs, protein) {
  return {
    name,
    calories,
    fat,
    carbs,
    protein,
  };
}

const rows = [
  createData('Cupcake', 305, 3.7, 67, 4.3),
  createData('Donut', 452, 25.0, 51, 4.9),
  createData('Eclair', 262, 16.0, 24, 6.0),
  createData('Frozen yoghurt', 159, 6.0, 24, 4.0),
  createData('Gingerbread', 356, 16.0, 49, 3.9),
  createData('Honeycomb', 408, 3.2, 87, 6.5),
  createData('Ice cream sandwich', 237, 9.0, 37, 4.3),
  createData('Jelly Bean', 375, 0.0, 94, 0.0),
  createData('KitKat', 518, 26.0, 65, 7.0),
  createData('Lollipop', 392, 0.2, 98, 0.0),
  createData('Marshmallow', 318, 0, 81, 2.0),
  createData('Nougat', 360, 19.0, 9, 37.0),
  createData('Oreo', 437, 18.0, 63, 4.0),
];

function labelDisplayedRows({ from, to, count }) {
  return `${from}–${to} of ${count !== -1 ? count : `more than ${to}`}`;
}

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

function getComparator(order, orderBy) {
  return order === 'desc'
    ? (a, b) => descendingComparator(a, b, orderBy)
    : (a, b) => -descendingComparator(a, b, orderBy);
}

const headCells = [
  {
    id: 'name',
    numeric: false,
    disablePadding: true,
    label: 'Dessert (100g serving)',
  },
  {
    id: 'calories',
    numeric: true,
    disablePadding: false,
    label: 'Calories',
  },
  {
    id: 'fat',
    numeric: true,
    disablePadding: false,
    label: 'Fat (g)',
  },
  {
    id: 'carbs',
    numeric: true,
    disablePadding: false,
    label: 'Carbs (g)',
  },
  {
    id: 'protein',
    numeric: true,
    disablePadding: false,
    label: 'Protein (g)',
  },
];

function EnhancedTableHead(props) {
  const { onSelectAllClick, order, orderBy, numSelected, rowCount, onRequestSort } =
    props;
  const createSortHandler = (property) => (event) => {
    onRequestSort(event, property);
  };

  return (
    <thead>
      <tr>
        <th>
          <Checkbox
            indeterminate={numSelected > 0 && numSelected < rowCount}
            checked={rowCount > 0 && numSelected === rowCount}
            onChange={onSelectAllClick}
            slotProps={{
              input: {
                'aria-label': 'select all desserts',
              },
            }}
            sx={{ verticalAlign: 'sub' }}
          />
        </th>
        {headCells.map((headCell) => {
          const active = orderBy === headCell.id;
          return (
            <th
              key={headCell.id}
              aria-sort={
                active ? { asc: 'ascending', desc: 'descending' }[order] : undefined
              }
            >
              <Link
                underline="none"
                color="neutral"
                textColor={active ? 'primary.plainColor' : undefined}
                component="button"
                onClick={createSortHandler(headCell.id)}
                startDecorator={
                  headCell.numeric ? (
                    <ArrowDownwardIcon
                      sx={[active ? { opacity: 1 } : { opacity: 0 }]}
                    />
                  ) : null
                }
                endDecorator={
                  !headCell.numeric ? (
                    <ArrowDownwardIcon
                      sx={[active ? { opacity: 1 } : { opacity: 0 }]}
                    />
                  ) : null
                }
                sx={{
                  fontWeight: 'lg',
                  '& svg': {
                    transition: '0.2s',
                    transform:
                      active && order === 'desc' ? 'rotate(0deg)' : 'rotate(180deg)',
                  },
                  '&:hover': { '& svg': { opacity: 1 } },
                }}
              >
                {headCell.label}
                {active ? (
                  <Box component="span" sx={visuallyHidden}>
                    {order === 'desc' ? 'sorted descending' : 'sorted ascending'}
                  </Box>
                ) : null}
              </Link>
            </th>
          );
        })}
      </tr>
    </thead>
  );
}

EnhancedTableHead.propTypes = {
  numSelected: PropTypes.number.isRequired,
  onRequestSort: PropTypes.func.isRequired,
  onSelectAllClick: PropTypes.func.isRequired,
  order: PropTypes.oneOf(['asc', 'desc']).isRequired,
  orderBy: PropTypes.string.isRequired,
  rowCount: PropTypes.number.isRequired,
};

function EnhancedTableToolbar(props) {
  const { numSelected } = props;
  return (
    <Box
      sx={[
        {
          display: 'flex',
          alignItems: 'center',
          py: 1,
          pl: { sm: 2 },
          pr: { xs: 1, sm: 1 },
          borderTopLeftRadius: 'var(--unstable_actionRadius)',
          borderTopRightRadius: 'var(--unstable_actionRadius)',
        },
        numSelected > 0 && {
          bgcolor: 'background.level1',
        },
      ]}
    >
      {numSelected > 0 ? (
        <Typography sx={{ flex: '1 1 100%' }} component="div">
          {numSelected} selected
        </Typography>
      ) : (
        <Typography
          level="body-lg"
          sx={{ flex: '1 1 100%' }}
          id="tableTitle"
          component="div"
        >
          Nutrition
        </Typography>
      )}
      {numSelected > 0 ? (
        <Tooltip title="Delete">
          <IconButton size="sm" color="danger" variant="solid">
            <DeleteIcon />
          </IconButton>
        </Tooltip>
      ) : (
        <Tooltip title="Filter list">
          <IconButton size="sm" variant="outlined" color="neutral">
            <FilterListIcon />
          </IconButton>
        </Tooltip>
      )}
    </Box>
  );
}

EnhancedTableToolbar.propTypes = {
  numSelected: PropTypes.number.isRequired,
};

export default function TableSortAndSelection() {
  const [order, setOrder] = React.useState('asc');
  const [orderBy, setOrderBy] = React.useState('calories');
  const [selected, setSelected] = React.useState([]);
  const [page, setPage] = React.useState(0);
  const [rowsPerPage, setRowsPerPage] = React.useState(5);
  const handleRequestSort = (event, property) => {
    const isAsc = orderBy === property && order === 'asc';
    setOrder(isAsc ? 'desc' : 'asc');
    setOrderBy(property);
  };
  const handleSelectAllClick = (event) => {
    if (event.target.checked) {
      const newSelected = rows.map((n) => n.name);
      setSelected(newSelected);
      return;
    }
    setSelected([]);
  };
  const handleClick = (event, name) => {
    const selectedIndex = selected.indexOf(name);
    let newSelected = [];
    if (selectedIndex === -1) {
      newSelected = newSelected.concat(selected, name);
    } else if (selectedIndex === 0) {
      newSelected = newSelected.concat(selected.slice(1));
    } else if (selectedIndex === selected.length - 1) {
      newSelected = newSelected.concat(selected.slice(0, -1));
    } else if (selectedIndex > 0) {
      newSelected = newSelected.concat(
        selected.slice(0, selectedIndex),
        selected.slice(selectedIndex + 1),
      );
    }
    setSelected(newSelected);
  };
  const handleChangePage = (newPage) => {
    setPage(newPage);
  };
  const handleChangeRowsPerPage = (event, newValue) => {
    setRowsPerPage(parseInt(newValue.toString(), 10));
    setPage(0);
  };
  const getLabelDisplayedRowsTo = () => {
    if (rows.length === -1) {
      return (page + 1) * rowsPerPage;
    }
    return rowsPerPage === -1
      ? rows.length
      : Math.min(rows.length, (page + 1) * rowsPerPage);
  };
  // Avoid a layout jump when reaching the last page with empty rows.
  const emptyRows =
    page > 0 ? Math.max(0, (1 + page) * rowsPerPage - rows.length) : 0;
  return (
    <Sheet
      variant="outlined"
      sx={{ width: '100%', boxShadow: 'sm', borderRadius: 'sm' }}
    >
      <EnhancedTableToolbar numSelected={selected.length} />
      <Table
        aria-labelledby="tableTitle"
        hoverRow
        sx={{
          '--TableCell-headBackground': 'transparent',
          '--TableCell-selectedBackground': (theme) =>
            theme.vars.palette.success.softBg,
          '& thead th:nth-child(1)': {
            width: '40px',
          },
          '& thead th:nth-child(2)': {
            width: '30%',
          },
          '& tr > *:nth-child(n+3)': { textAlign: 'right' },
        }}
      >
        <EnhancedTableHead
          numSelected={selected.length}
          order={order}
          orderBy={orderBy}
          onSelectAllClick={handleSelectAllClick}
          onRequestSort={handleRequestSort}
          rowCount={rows.length}
        />
        <tbody>
          {[...rows]
            .sort(getComparator(order, orderBy))
            .slice(page * rowsPerPage, page * rowsPerPage + rowsPerPage)
            .map((row, index) => {
              const isItemSelected = selected.includes(row.name);
              const labelId = `enhanced-table-checkbox-${index}`;

              return (
                <tr
                  onClick={(event) => handleClick(event, row.name)}
                  role="checkbox"
                  aria-checked={isItemSelected}
                  tabIndex={-1}
                  key={row.name}
                  // selected={isItemSelected}
                  style={
                    isItemSelected
                      ? {
                          '--TableCell-dataBackground':
                            'var(--TableCell-selectedBackground)',
                          '--TableCell-headBackground':
                            'var(--TableCell-selectedBackground)',
                        }
                      : {}
                  }
                >
                  <th scope="row">
                    <Checkbox
                      checked={isItemSelected}
                      slotProps={{
                        input: {
                          'aria-labelledby': labelId,
                        },
                      }}
                      sx={{ verticalAlign: 'top' }}
                    />
                  </th>
                  <th id={labelId} scope="row">
                    {row.name}
                  </th>
                  <td>{row.calories}</td>
                  <td>{row.fat}</td>
                  <td>{row.carbs}</td>
                  <td>{row.protein}</td>
                </tr>
              );
            })}
          {emptyRows > 0 && (
            <tr
              style={{
                height: `calc(${emptyRows} * 40px)`,
                '--TableRow-hoverBackground': 'transparent',
              }}
            >
              <td colSpan={6} aria-hidden />
            </tr>
          )}
        </tbody>
        <tfoot>
          <tr>
            <td colSpan={6}>
              <Box
                sx={{
                  display: 'flex',
                  alignItems: 'center',
                  gap: 2,
                  justifyContent: 'flex-end',
                }}
              >
                <FormControl orientation="horizontal" size="sm">
                  <FormLabel>Rows per page:</FormLabel>
                  <Select onChange={handleChangeRowsPerPage} value={rowsPerPage}>
                    <Option value={5}>5</Option>
                    <Option value={10}>10</Option>
                    <Option value={25}>25</Option>
                  </Select>
                </FormControl>
                <Typography sx={{ textAlign: 'center', minWidth: 80 }}>
                  {labelDisplayedRows({
                    from: rows.length === 0 ? 0 : page * rowsPerPage + 1,
                    to: getLabelDisplayedRowsTo(),
                    count: rows.length === -1 ? -1 : rows.length,
                  })}
                </Typography>
                <Box sx={{ display: 'flex', gap: 1 }}>
                  <IconButton
                    size="sm"
                    color="neutral"
                    variant="outlined"
                    disabled={page === 0}
                    onClick={() => handleChangePage(page - 1)}
                    sx={{ bgcolor: 'background.surface' }}
                  >
                    <KeyboardArrowLeftIcon />
                  </IconButton>
                  <IconButton
                    size="sm"
                    color="neutral"
                    variant="outlined"
                    disabled={
                      rows.length !== -1
                        ? page >= Math.ceil(rows.length / rowsPerPage) - 1
                        : false
                    }
                    onClick={() => handleChangePage(page + 1)}
                    sx={{ bgcolor: 'background.surface' }}
                  >
                    <KeyboardArrowRightIcon />
                  </IconButton>
                </Box>
              </Box>
            </td>
          </tr>
        </tfoot>
      </Table>
    </Sheet>
  );
}