'use client'

// React Imports
import { useCallback, useEffect, useMemo, useState } from 'react'

// Next Imports

// MUI Imports
import Button from '@mui/material/Button'
import Card from '@mui/material/Card'
import CardHeader from '@mui/material/CardHeader'
import Checkbox from '@mui/material/Checkbox'
import Chip from '@mui/material/Chip'
import Divider from '@mui/material/Divider'
import MenuItem from '@mui/material/MenuItem'
import TablePagination from '@mui/material/TablePagination'
import type { TextFieldProps } from '@mui/material/TextField'
import Typography from '@mui/material/Typography'

// Third-party Imports
import type { RankingInfo } from '@tanstack/match-sorter-utils'
import { rankItem } from '@tanstack/match-sorter-utils'
import type { ColumnDef, FilterFn } from '@tanstack/react-table'
import { createColumnHelper, flexRender, getCoreRowModel, useReactTable } from '@tanstack/react-table'
import classnames from 'classnames'

// Type Imports

// Component Imports
import TablePaginationComponent from '@components/TablePaginationComponent'
import CustomTextField from '@core/components/mui/TextField'

// Util Imports

// Style Imports
import tableStyles from '@core/styles/table.module.css'
import { Box, CircularProgress } from '@mui/material'
import AdjustmentStockDrawer from './AdjustmentStockDrawer'
import { Inventory } from '../../../../../types/services/inventory'
import Loading from '../../../../../components/layout/shared/Loading'
import { useInventories } from '../../../../../services/queries/inventories'

declare module '@tanstack/table-core' {
  interface FilterFns {
    fuzzy: FilterFn<unknown>
  }
  interface FilterMeta {
    itemRank: RankingInfo
  }
}

type InventoryWithActionsType = Inventory & {
  actions?: string
}

const fuzzyFilter: FilterFn<any> = (row, columnId, value, addMeta) => {
  // Rank the item
  const itemRank = rankItem(row.getValue(columnId), value)

  // Store the itemRank info
  addMeta({
    itemRank
  })

  // Return if the item should be filtered in/out
  return itemRank.passed
}

const DebouncedInput = ({
  value: initialValue,
  onChange,
  debounce = 500,
  ...props
}: {
  value: string | number
  onChange: (value: string | number) => void
  debounce?: number
} & Omit<TextFieldProps, 'onChange'>) => {
  // States
  const [value, setValue] = useState(initialValue)

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

  useEffect(() => {
    const timeout = setTimeout(() => {
      onChange(value)
    }, debounce)

    return () => clearTimeout(timeout)
    // eslint-disable-next-line react-hooks/exhaustive-deps
  }, [value])

  return <CustomTextField {...props} value={value} onChange={e => setValue(e.target.value)} />
}

// Column Definitions
const columnHelper = createColumnHelper<InventoryWithActionsType>()

const StockListTable = () => {
  const [rowSelection, setRowSelection] = useState({})
  const [currentPage, setCurrentPage] = useState(1)
  const [pageSize, setPageSize] = useState(10)
  const [addInventoryOpen, setAddInventoryOpen] = useState(false)
  const [search, setSearch] = useState('')

  // Fetch products with pagination and search
  const { data, isLoading, error, isFetching } = useInventories({
    page: currentPage,
    limit: pageSize,
    search
  })

  const inventories = data?.inventory ?? []
  const totalCount = data?.total_count ?? 0

  const handlePageChange = useCallback((event: unknown, newPage: number) => {
    setCurrentPage(newPage)
  }, [])

  // Handle page size change
  const handlePageSizeChange = useCallback((event: React.ChangeEvent<HTMLInputElement>) => {
    const newPageSize = parseInt(event.target.value, 10)
    setPageSize(newPageSize)
    setCurrentPage(1) // Reset to first page
  }, [])

  const columns = useMemo<ColumnDef<InventoryWithActionsType, any>[]>(
    () => [
      {
        id: 'select',
        header: ({ table }) => (
          <Checkbox
            {...{
              checked: table.getIsAllRowsSelected(),
              indeterminate: table.getIsSomeRowsSelected(),
              onChange: table.getToggleAllRowsSelectedHandler()
            }}
          />
        ),
        cell: ({ row }) => (
          <Checkbox
            {...{
              checked: row.getIsSelected(),
              disabled: !row.getCanSelect(),
              indeterminate: row.getIsSomeSelected(),
              onChange: row.getToggleSelectedHandler()
            }}
          />
        )
      },
      columnHelper.accessor('product_id', {
        header: 'Product',
        cell: ({ row }) => <Typography>{row.original.product?.name}</Typography>
      }),
      columnHelper.accessor('quantity', {
        header: 'Quantity',
        cell: ({ row }) => <Typography>{row.original.quantity}</Typography>
      }),
      columnHelper.accessor('reorder_level', {
        header: 'Reorder Level',
        cell: ({ row }) => <Typography>{row.original.reorder_level}</Typography>
      }),
      columnHelper.accessor('is_low_stock', {
        header: 'Status',
        cell: ({ row }) => (
          <Chip
            label={row.original.is_low_stock ? 'Low' : 'Normal'}
            variant='tonal'
            color={row.original.is_low_stock ? 'error' : 'success'}
            size='small'
          />
        )
      })
    ],
    // eslint-disable-next-line react-hooks/exhaustive-deps
    []
  )

  const table = useReactTable({
    data: inventories as Inventory[],
    columns,
    filterFns: {
      fuzzy: fuzzyFilter
    },
    state: {
      rowSelection,
      pagination: {
        pageIndex: currentPage, // <= penting!
        pageSize
      }
    },
    enableRowSelection: true, //enable row selection for all rows
    onRowSelectionChange: setRowSelection,
    getCoreRowModel: getCoreRowModel(),
    // Disable client-side pagination since we're handling it server-side
    manualPagination: true,
    pageCount: Math.ceil(totalCount / pageSize)
  })

  return (
    <>
      <Card>
        {/* <CardHeader title='Filters' /> */}
        {/* <TableFilters setData={() => {}} productData={[]} /> */}
        {/* <Divider /> */}
        <div className='flex flex-wrap justify-between gap-4 p-6'>
          <DebouncedInput
            value={search}
            onChange={value => setSearch(String(value))}
            placeholder='Search Product'
            className='max-sm:is-full'
          />
          <div className='flex flex-wrap items-center max-sm:flex-col gap-4 max-sm:is-full is-auto'>
            <CustomTextField
              select
              value={table.getState().pagination.pageSize}
              onChange={e => table.setPageSize(Number(e.target.value))}
              className='flex-auto is-[70px] max-sm:is-full'
            >
              <MenuItem value='10'>10</MenuItem>
              <MenuItem value='25'>25</MenuItem>
              <MenuItem value='50'>50</MenuItem>
            </CustomTextField>
            <Button
              color='secondary'
              variant='tonal'
              className='max-sm:is-full is-auto'
              startIcon={<i className='tabler-upload' />}
            >
              Export
            </Button>
            <Button
              variant='contained'
              className='max-sm:is-full'
              onClick={() => setAddInventoryOpen(!addInventoryOpen)}
              startIcon={<i className='tabler-plus' />}
            >
              Adjust Stock
            </Button>
          </div>
        </div>
        <div className='overflow-x-auto'>
          {isLoading ? (
            <Loading />
          ) : (
            <table className={tableStyles.table}>
              <thead>
                {table.getHeaderGroups().map(headerGroup => (
                  <tr key={headerGroup.id}>
                    {headerGroup.headers.map(header => (
                      <th key={header.id}>
                        {header.isPlaceholder ? null : (
                          <>
                            <div
                              className={classnames({
                                'flex items-center': header.column.getIsSorted(),
                                'cursor-pointer select-none': header.column.getCanSort()
                              })}
                              onClick={header.column.getToggleSortingHandler()}
                            >
                              {flexRender(header.column.columnDef.header, header.getContext())}
                              {{
                                asc: <i className='tabler-chevron-up text-xl' />,
                                desc: <i className='tabler-chevron-down text-xl' />
                              }[header.column.getIsSorted() as 'asc' | 'desc'] ?? null}
                            </div>
                          </>
                        )}
                      </th>
                    ))}
                  </tr>
                ))}
              </thead>
              {table.getFilteredRowModel().rows.length === 0 ? (
                <tbody>
                  <tr>
                    <td colSpan={table.getVisibleFlatColumns().length} className='text-center'>
                      No data available
                    </td>
                  </tr>
                </tbody>
              ) : (
                <tbody>
                  {table
                    .getRowModel()
                    .rows.slice(0, table.getState().pagination.pageSize)
                    .map(row => {
                      return (
                        <tr key={row.id} className={classnames({ selected: row.getIsSelected() })}>
                          {row.getVisibleCells().map(cell => (
                            <td key={cell.id}>{flexRender(cell.column.columnDef.cell, cell.getContext())}</td>
                          ))}
                        </tr>
                      )
                    })}
                </tbody>
              )}
            </table>
          )}

          {isFetching && !isLoading && (
            <Box
              position='absolute'
              top={0}
              left={0}
              right={0}
              bottom={0}
              display='flex'
              alignItems='center'
              justifyContent='center'
              bgcolor='rgba(255,255,255,0.7)'
              zIndex={1}
            >
              <CircularProgress size={24} />
            </Box>
          )}
        </div>

        <TablePagination
          component={() => (
            <TablePaginationComponent
              pageIndex={currentPage}
              pageSize={pageSize}
              totalCount={totalCount}
              onPageChange={handlePageChange}
            />
          )}
          count={totalCount}
          rowsPerPage={pageSize}
          page={currentPage}
          onPageChange={handlePageChange}
          onRowsPerPageChange={handlePageSizeChange}
          rowsPerPageOptions={[10, 25, 50]}
          disabled={isLoading}
        />
      </Card>

      <AdjustmentStockDrawer open={addInventoryOpen} handleClose={() => setAddInventoryOpen(!addInventoryOpen)} />
    </>
  )
}

export default StockListTable