Row Selection

import {useMemo, useState} from "react"

import {
  QButton,
  QCheckbox,
  QPagination,
  QProgressCircle,
  QTextInput,
  useDebounce,
} from "@qui/react"
import {
  Column,
  ColumnDef,
  flexRender,
  getCoreRowModel,
  getFilteredRowModel,
  getPaginationRowModel,
  QTable,
  QTbody,
  QTd,
  QTh,
  QThead,
  QTr,
  Table,
  useReactTable,
  useTablePagination,
} from "@qui/react-table"

import {Person, usePersonData} from "~utils/data"

export default function RowSelection() {
  const [rowSelection, setRowSelection] = useState({})
  const [globalFilter, setGlobalFilter] = useState("")

  const columns = useMemo<ColumnDef<Person>[]>(
    () => [
      {
        cell: ({row}) => {
          const indeterminate = row.getIsSomeSelected()
          const checked = row.getIsSelected() && !indeterminate
          return (
            <div>
              <QCheckbox
                checked={checked}
                indeterminate={indeterminate}
                onChange={row.getToggleSelectedHandler()}
              />
            </div>
          )
        },
        header: ({table}) => (
          <QCheckbox
            checked={table.getIsAllRowsSelected()}
            indeterminate={table.getIsSomeRowsSelected()}
            onChange={table.getToggleAllRowsSelectedHandler()}
          />
        ),
        id: "select",
      },
      {
        accessorKey: "firstName",
        cell: (info) => info.getValue(),
        header: "First Name",
      },
      {
        accessorFn: (row) => row.lastName,
        cell: (info) => info.getValue(),
        header: "Last Name",
        id: "lastName",
      },
      {
        accessorKey: "age",
        header: "Age",
      },
      {
        accessorKey: "visits",
        header: "Visits",
      },
      {
        accessorKey: "status",
        header: "Status",
      },
      {
        accessorKey: "progress",
        header: "Profile Progress",
      },
    ],
    [],
  )

  const {data = [], isFetching, refetch} = usePersonData(100000)
  const refreshData = () => refetch()

  // Debounce the global filter for better performance. Registering on every
  // keystroke causes lag for the first few keys, as fewer characters can match the
  // majority of the table's data.
  const debouncedGlobalFilter = useDebounce(globalFilter, 150)

  const table = useReactTable({
    columns,
    data,
    getCoreRowModel: getCoreRowModel(),
    getFilteredRowModel: getFilteredRowModel(),
    getPaginationRowModel: getPaginationRowModel(),
    onRowSelectionChange: setRowSelection,
    state: {
      globalFilter: debouncedGlobalFilter,
      rowSelection,
    },
  })

  const paginationProps = useTablePagination(table)

  return (
    <div className="overflow-x-auto p-2">
      <div className="flex items-center gap-3">
        <QTextInput
          onChange={(e, value) => setGlobalFilter(value)}
          placeholder="Search all columns..."
          value={globalFilter}
        />
        <QButton onClick={refreshData} variant="outline">
          Refresh Data
        </QButton>
        {isFetching ? <QProgressCircle size="xs" /> : null}
      </div>

      <div className="mt-3 overflow-x-auto">
        <QTable>
          <QThead>
            {table.getHeaderGroups().map((headerGroup) => (
              <QTr key={headerGroup.id}>
                {headerGroup.headers.map((header) => {
                  return (
                    <QTh key={header.id} colSpan={header.colSpan}>
                      {header.isPlaceholder ? null : (
                        <div className="inline-flex flex-col gap-1">
                          <div className="inline-flex min-h-[28px] items-center justify-center">
                            {flexRender(
                              header.column.columnDef.header,
                              header.getContext(),
                            )}
                          </div>
                          {header.column.getCanFilter() ? (
                            <Filter column={header.column} table={table} />
                          ) : null}
                        </div>
                      )}
                    </QTh>
                  )
                })}
              </QTr>
            ))}
          </QThead>
          <QTbody>
            {table.getRowModel().rows.map((row) => {
              return (
                <QTr key={row.id} isSelected={row.getIsSelected()}>
                  {row.getVisibleCells().map((cell) => {
                    return (
                      <QTd key={cell.id}>
                        {flexRender(
                          cell.column.columnDef.cell,
                          cell.getContext(),
                        )}
                      </QTd>
                    )
                  })}
                </QTr>
              )
            })}
          </QTbody>
        </QTable>
      </div>

      <div className="mt-4">
        <QPagination
          {...paginationProps}
          renderPageMeta={(context) =>
            `${context.currentPage} of ${context.totalPages}`
          }
          rowsPerPageLabel="Show"
          rowsPerPageOptions={[10, 20, 50]}
        />
      </div>

      <div className="mt-4">
        <QButton
          onClick={() =>
            console.info(
              "table.getSelectedRowModel().flatRows",
              table.getSelectedRowModel().flatRows,
            )
          }
          variant="outline"
        >
          Log table.getSelectedRowModel().flatRows
        </QButton>
      </div>
    </div>
  )
}

function Filter({
  column,
  table,
}: {
  column: Column<Person>
  table: Table<Person>
}) {
  const firstValue = table
    .getPreFilteredRowModel()
    .flatRows[0]?.getValue(column.id)

  const columnFilterValue = column.getFilterValue()

  return typeof firstValue === "number" ? (
    <div className="flex gap-2">
      <QTextInput
        className="w-24"
        inputProps={{min: 0, type: "number"}}
        onChange={(e, value) =>
          column.setFilterValue((old: [number, number]) => [value, old?.[1]])
        }
        placeholder="Min"
        size="s"
        value={(columnFilterValue as [number, number])?.[0] ?? ""}
      />
      <QTextInput
        className="w-24"
        inputProps={{min: 0, type: "number"}}
        onChange={(e, value) =>
          column.setFilterValue((old: [number, number]) => [old?.[0], value])
        }
        placeholder="Max"
        size="s"
        value={(columnFilterValue as [number, number])?.[1] ?? ""}
      />
    </div>
  ) : (
    <QTextInput
      className="w-36"
      onChange={(e, value) => column.setFilterValue(value)}
      placeholder="Search..."
      size="s"
      value={(columnFilterValue ?? "") as string}
    />
  )
}