Preact Example: Filters

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import { render } from 'preact'
import { useEffect, useMemo, useReducer, useState } from 'preact/hooks'
import './index.css'
import {
  columnFilteringFeature,
  createColumnHelper,
  createFilteredRowModel,
  createPaginatedRowModel,
  filterFns,
  metaHelper,
  rowPaginationFeature,
  tableFeatures,
  useTable,
} from '@tanstack/preact-table'
import { useDebouncedCallback } from '@tanstack/preact-pacer/debouncer'
import { makeData } from './makeData'
import type { JSX } from 'preact'
import type { Column } from '@tanstack/preact-table'
import type { Person } from './makeData'

// allows us to define custom properties for our columns
interface MyColumnMeta {
  filterVariant?: 'text' | 'range' | 'select'
}

const features = tableFeatures({
  columnFilteringFeature,
  rowPaginationFeature,
  filteredRowModel: createFilteredRowModel(),
  paginatedRowModel: createPaginatedRowModel(),
  filterFns,
  columnMeta: metaHelper<MyColumnMeta>(),
})

const columnHelper = createColumnHelper<typeof features, Person>()

function App() {
  const rerender = useReducer(() => ({}), {})[1]

  const columns = useMemo(
    () =>
      columnHelper.columns([
        columnHelper.accessor('firstName', {
          cell: (info) => info.getValue(),
        }),
        columnHelper.accessor((row) => row.lastName, {
          id: 'lastName',
          cell: (info) => info.getValue(),
          header: () => <span>Last Name</span>,
        }),
        columnHelper.accessor((row) => `${row.firstName} ${row.lastName}`, {
          id: 'fullName',
          header: 'Full Name',
          cell: (info) => info.getValue(),
        }),
        columnHelper.accessor('age', {
          header: () => 'Age',
          meta: {
            filterVariant: 'range',
          },
        }),
        columnHelper.accessor('visits', {
          header: () => <span>Visits</span>,
          meta: {
            filterVariant: 'range',
          },
        }),
        columnHelper.accessor('status', {
          header: 'Status',
          meta: {
            filterVariant: 'select',
          },
        }),
        columnHelper.accessor('progress', {
          header: 'Profile Progress',
          meta: {
            filterVariant: 'range',
          },
        }),
      ]),
    [],
  )

  const [data, setData] = useState<Array<Person>>(() => makeData(5_000))
  const refreshData = () => setData((_old) => makeData(5_000))
  const stressTest = () => setData((_old) => makeData(200_000))

  const table = useTable(
    {
      features,
      columns,
      data,
      debugTable: true,
      debugColumns: true,
    },
    (state) => state, // default selector
  )

  return (
    <div className="demo-root">
      <div>
        <button onClick={() => refreshData()}>Regenerate Data</button>
        <button onClick={() => stressTest()}>Stress Test (200k rows)</button>
      </div>
      <table>
        <thead>
          {table.getHeaderGroups().map((headerGroup) => (
            <tr key={headerGroup.id}>
              {headerGroup.headers.map((header) => {
                return (
                  <th key={header.id} colSpan={header.colSpan}>
                    {header.isPlaceholder ? null : (
                      <>
                        <div>
                          <table.FlexRender header={header} />
                        </div>
                        {header.column.getCanFilter() ? (
                          <div>
                            <Filter column={header.column} />
                          </div>
                        ) : null}
                      </>
                    )}
                  </th>
                )
              })}
            </tr>
          ))}
        </thead>
        <tbody>
          {table.getRowModel().rows.map((row) => {
            return (
              <tr key={row.id}>
                {row.getAllCells().map((cell) => {
                  return (
                    <td key={cell.id}>
                      <table.FlexRender cell={cell} />
                    </td>
                  )
                })}
              </tr>
            )
          })}
        </tbody>
      </table>
      <div className="spacer-sm" />
      <div className="controls">
        <button
          className="demo-button demo-button-sm"
          onClick={() => table.setPageIndex(0)}
          disabled={!table.getCanPreviousPage()}
        >
          {'<<'}
        </button>
        <button
          className="demo-button demo-button-sm"
          onClick={() => table.previousPage()}
          disabled={!table.getCanPreviousPage()}
        >
          {'<'}
        </button>
        <button
          className="demo-button demo-button-sm"
          onClick={() => table.nextPage()}
          disabled={!table.getCanNextPage()}
        >
          {'>'}
        </button>
        <button
          className="demo-button demo-button-sm"
          onClick={() => table.setPageIndex(table.getPageCount() - 1)}
          disabled={!table.getCanNextPage()}
        >
          {'>>'}
        </button>
        <span className="inline-controls">
          <div>Page</div>
          <strong>
            {(table.state.pagination.pageIndex + 1).toLocaleString()} of{' '}
            {table.getPageCount().toLocaleString()}
          </strong>
        </span>
        <span className="inline-controls">
          | Go to page:
          <input
            type="number"
            min="1"
            max={table.getPageCount()}
            defaultValue={table.state.pagination.pageIndex + 1}
            onChange={(e) => {
              const page = (e.target as HTMLInputElement).value
                ? Number((e.target as HTMLInputElement).value) - 1
                : 0
              table.setPageIndex(page)
            }}
            className="page-size-input"
          />
        </span>
        <select
          value={table.state.pagination.pageSize}
          onChange={(e) => {
            table.setPageSize(Number((e.target as HTMLSelectElement).value))
          }}
        >
          {[10, 20, 30, 40, 50].map((pageSize) => (
            <option key={pageSize} value={pageSize}>
              Show {pageSize}
            </option>
          ))}
        </select>
      </div>
      <div>
        {table.getPrePaginatedRowModel().rows.length.toLocaleString()} Rows
      </div>
      <div>
        <button onClick={() => rerender(0)}>Force Rerender</button>
      </div>
      <pre>{JSON.stringify(table.state, null, 2)}</pre>
    </div>
  )
}

function Filter({
  column,
}: {
  column: Column<typeof features, Person, unknown>
}) {
  const columnFilterValue = column.getFilterValue()
  const { filterVariant } = column.columnDef.meta ?? {}

  return filterVariant === 'range' ? (
    <div>
      <div className="filter-row">
        {/* See faceted column filters example for min max values functionality */}
        <DebouncedInput
          type="number"
          value={(columnFilterValue as [number, number] | undefined)?.[0] ?? ''}
          onChange={(value) =>
            column.setFilterValue((old: [number, number] | undefined) => [
              value,
              old?.[1],
            ])
          }
          placeholder={`Min`}
          className="filter-input"
        />
        <DebouncedInput
          type="number"
          value={(columnFilterValue as [number, number] | undefined)?.[1] ?? ''}
          onChange={(value) =>
            column.setFilterValue((old: [number, number] | undefined) => [
              old?.[0],
              value,
            ])
          }
          placeholder={`Max`}
          className="filter-input"
        />
      </div>
      <div className="spacer-xs" />
    </div>
  ) : filterVariant === 'select' ? (
    <select
      onChange={(e) =>
        column.setFilterValue((e.target as HTMLSelectElement).value)
      }
      value={columnFilterValue?.toString()}
    >
      {/* See faceted column filters example for dynamic select options */}
      <option value="">All</option>
      <option value="complicated">complicated</option>
      <option value="relationship">relationship</option>
      <option value="single">single</option>
    </select>
  ) : (
    <DebouncedInput
      className="filter-select"
      onChange={(value) => column.setFilterValue(value)}
      placeholder={`Search...`}
      type="text"
      value={(columnFilterValue ?? '') as string}
    />
    // See faceted column filters example for datalist search suggestions
  )
}

// A typical debounced input preact component
function DebouncedInput({
  value: initialValue,
  onChange,
  debounce = 500,
  ...props
}: {
  value: string | number
  onChange: (value: string | number) => void
  debounce?: number
} & Record<string, any>) {
  const [value, setValue] = useState(initialValue)

  useEffect(() => {
    setValue(initialValue)
  }, [initialValue])

  const debouncedOnChange = useDebouncedCallback(onChange, { wait: debounce })

  return (
    <input
      {...props}
      value={value}
      onInput={(e) => {
        const nextValue = (e.target as HTMLInputElement).value
        setValue(nextValue)
        debouncedOnChange(nextValue)
      }}
    />
  )
}

const rootElement = document.getElementById('root')
if (!rootElement) throw new Error('Failed to find the root element')

render(<App />, rootElement)