'use client'
import React from 'react'
import ReactDOM from 'react-dom/client'
import Link from 'next/link'
import {
  keepPreviousData,
  QueryClient,
  useQuery,
} from '@tanstack/react-query'


import {
  PaginationState,
  useReactTable,
  getCoreRowModel,
  ColumnDef,
  flexRender,
} from '@tanstack/react-table'


import { fetchStreamData, IStream } from '@/lib/streams'

const queryClient = new QueryClient()

function getStatusClass(value: string) {
  switch (value) {
    case 'issue':
      return 'is-warning';
    case 'missing':
      return 'is-danger';
    case 'good':
      return 'is-success';
    default:
      return '';
  }
}

export default function StreamsTable() {
  const rerender = React.useReducer(() => ({}), {})[1]


  // name
  // title
  // platform
  // date
  // archiveStatus
  const columns = React.useMemo<ColumnDef<IStream>[]>(
    () => [
        {
            header: 'VTuber',
            accessorFn: d => d.attributes.vtuber.data?.attributes?.displayName,
        },
        {
            header: 'Date',
            accessorFn: d => new Date(d.attributes.date2).toISOString().split('T').at(0),
            cell: info => <Link href={`/archive/${info.row.original.attributes.cuid}`}>{info.getValue() as string}</Link>
        },
        {
            header: 'Platform',
            accessorFn: d => [
              (d.attributes.isChaturbateStream && 'CB'), 
              (d.attributes.isFanslyStream && 'Fansly')
            ].filter(Boolean).join(', ') || '???'
        },
        {
            header: 'Status',
            accessorFn: d => {
              if (!d.attributes.archiveStatus) return 'missing';
              return d.attributes.archiveStatus
            }
        },
    //   {
    //     header: 'Name',
    //     footer: props => props.column.id,
    //     columns: [
    //       {
    //         accessorKey: 'firstName',
    //         cell: info => info.getValue(),
    //         footer: props => props.column.id,
    //       },
    //       {
    //         accessorFn: row => row.lastName,
    //         id: 'lastName',
    //         cell: info => info.getValue(),
    //         header: () => <span>Last Name</span>,
    //         footer: props => props.column.id,
    //       },
    //     ],
    //   },
    ],
    []
  )

  const [pagination, setPagination] = React.useState<PaginationState>({
    pageIndex: 0,
    pageSize: 50,
  })

  const dataQuery = useQuery({
    queryKey: ['streams', pagination.pageIndex, pagination.pageSize],
    queryFn: () => fetchStreamData(pagination),
    placeholderData: keepPreviousData, // don't have 0 rows flash while changing pages/loading next page,
    staleTime: 1000
  }, queryClient)

  const defaultData = React.useMemo(() => [], [])

  const table = useReactTable({
    data: dataQuery?.data?.rows ?? defaultData,
    columns,
    // pageCount: dataQuery.data?.pageCount ?? -1, //you can now pass in `rowCount` instead of pageCount and `pageCount` will be calculated internally (new in v8.13.0)
    rowCount: dataQuery.data?.rowCount, // new in v8.13.0 - alternatively, just pass in `pageCount` directly
    state: {
      pagination,
    },
    onPaginationChange: setPagination,
    getCoreRowModel: getCoreRowModel(),
    manualPagination: true, //we're doing manual "server-side" pagination
    // getPaginationRowModel: getPaginationRowModel(), // If only doing manual pagination, you don't need this
    debugTable: true,
  })

  return (
    <div className="p-2">
      <div className="h-2" />
      <table className='table is-hoverable is-fullwidth'>
        <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>
                        {flexRender(
                          header.column.columnDef.header,
                          header.getContext()
                        )}
                      </div>
                    )}
                  </th>
                )
              })}
            </tr>
          ))}
        </thead>
        <tbody>
          {table.getRowModel().rows.map(row => {
            return (
              <tr key={row.id}>
                {row.getVisibleCells().map(cell => {
                  return (
                    <td 
                      className={getStatusClass(cell.getValue() as string)} 
                      key={cell.id}
                    >
                      {flexRender(
                        cell.column.columnDef.cell,
                        cell.getContext()
                      )}
                    </td>
                  )
                })}
              </tr>
            )
          })}
        </tbody>
      </table>
      
      <div className="columns is-mobile is-vcentered">
        <div className='column is-half'>
          <button
            className="button border rounded mx-1"
            onClick={() => table.firstPage()}
            disabled={!table.getCanPreviousPage()}
          >
            {'<<'}
          </button>
          <button
            className="button border rounded mx-1"
            onClick={() => table.previousPage()}
            disabled={!table.getCanPreviousPage()}
          >
            {'<'}
          </button>
          <button
            className="button border rounded mx-1"
            onClick={() => table.nextPage()}
            disabled={!table.getCanNextPage()}
          >
            {'>'}
          </button>
          <button
            className="button border rounded mx-1"
            onClick={() => table.lastPage()}
            disabled={!table.getCanNextPage()}
          >
            {'>>'}
          </button>
        </div>
        <div className='column is-half'>
          <span>Page </span>
            <strong>
              {table.getState().pagination.pageIndex + 1} of{' '}
              {table.getPageCount().toLocaleString()}
            </strong>
        </div>
      </div>

      {/* second row with page number input and pages-per-screen select */}
      <div className='columns is-mobile is-vcentered'>
        <div className='column is-2 '>
          <span className='is-text-centered'>Go to page:</span>
        </div>
        <div className='column is-3'>
          <input
            type="number"
            defaultValue={table.getState().pagination.pageIndex + 1}
            onChange={e => {
              const page = e.target.value ? Number(e.target.value) - 1 : 0
              table.setPageIndex(page)
            }}
            className="input"
          />
        </div>
        <div className='column is-5'>
          <div className="select">
            <select
              value={table.getState().pagination.pageSize}
              onChange={e => {
                table.setPageSize(Number(e.target.value))
              }}
            >
            {[20, 50, 100].map(pageSize => (
              <option key={pageSize} value={pageSize}>
                Show {pageSize}
              </option>
            ))}
          </select>
          </div>
        </div>
      </div>



      </div>
    
  )
}