'use client'

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

// Next Imports
import Link from 'next/link'
import { useParams } from 'next/navigation'

// 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 IconButton from '@mui/material/IconButton'
import MenuItem from '@mui/material/MenuItem'
import { styled } from '@mui/material/styles'
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
import type { UsersType } from '@/types/apps/userTypes'
import type { Locale } from '@configs/i18n'

// Component Imports
import CustomAvatar from '@core/components/mui/Avatar'
import CustomTextField from '@core/components/mui/TextField'
import OptionMenu from '@core/components/option-menu'

// Util Imports
import { getInitials } from '@/utils/getInitials'
import { getLocalizedUrl } from '@/utils/i18n'

// Style Imports
import tableStyles from '@core/styles/table.module.css'
import { Box, CircularProgress, TablePagination } from '@mui/material'
import Loading from '../../../../components/layout/shared/Loading'
import TablePaginationComponent from '../../../../components/TablePaginationComponent'
import { useUsers } from '../../../../services/queries/users'
import { User } from '../../../../types/services/user'
import AddUserDrawer from './AddUserDrawer'
import { useDispatch } from 'react-redux'
import { setUser } from '../../../../redux-store/slices/user'
import { useUsersMutation } from '../../../../services/mutations/users'
import ConfirmDeleteDialog from '../../../../components/dialogs/confirm-delete'

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

type UsersTypeWithAction = User & {
  actions?: string
}

type UserRoleType = {
  [key: string]: { icon: string; color: string }
}

// Styled Components
const Icon = styled('i')({})

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)} />
}

// Vars
const userRoleObj: UserRoleType = {
  admin: { icon: 'tabler-crown', color: 'error' },
  author: { icon: 'tabler-device-desktop', color: 'warning' },
  editor: { icon: 'tabler-edit', color: 'info' },
  cashier: { icon: 'tabler-chart-pie', color: 'success' },
  subscriber: { icon: 'tabler-user', color: 'primary' }
}

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

const UserListTable = () => {
  const dispatch = useDispatch()

  // States
  const [addUserOpen, setAddUserOpen] = useState(false)
  const [rowSelection, setRowSelection] = useState({})
  const [currentPage, setCurrentPage] = useState(1)
  const [pageSize, setPageSize] = useState(10)
  const [openConfirm, setOpenConfirm] = useState(false)
  const [userId, setUserId] = useState('')
  const [search, setSearch] = useState('')

  // Hooks
  const { lang: locale } = useParams()

  const { data, isLoading, error, isFetching } = useUsers({
    page: currentPage,
    limit: pageSize,
    search
  })

  const { deleteUser } = useUsersMutation()

  const users = data?.users ?? []
  const totalCount = data?.pagination.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 handleDelete = () => {
    deleteUser.mutate(userId, {
      onSuccess: () => setOpenConfirm(false)
    })
  }

  const columns = useMemo<ColumnDef<UsersTypeWithAction, 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('name', {
        header: 'User',
        cell: ({ row }) => (
          <div className='flex items-center gap-4'>
            {getAvatar({ avatar: '', fullName: row.original.name })}
            <div className='flex flex-col'>
              <Typography color='text.primary' className='font-medium'>
                {row.original.name}
              </Typography>
            </div>
          </div>
        )
      }),
      columnHelper.accessor('role', {
        header: 'Role',
        cell: ({ row }) => (
          <div className='flex items-center gap-2'>
            <Icon
              className={userRoleObj[row.original.role].icon}
              sx={{ color: `var(--mui-palette-${userRoleObj[row.original.role].color}-main)` }}
            />
            <Typography className='capitalize' color='text.primary'>
              {row.original.role}
            </Typography>
          </div>
        )
      }),
      columnHelper.accessor('email', {
        header: 'Email',
        cell: ({ row }) => <Typography>{row.original.email}</Typography>
      }),
      columnHelper.accessor('is_active', {
        header: 'Status',
        cell: ({ row }) => (
          <div className='flex items-center gap-3'>
            <Chip
              variant='tonal'
              label={row.original.is_active ? 'Active' : 'Inactive'}
              size='small'
              color={row.original.is_active ? 'success' : 'error'}
              className='capitalize'
            />
          </div>
        )
      }),
      columnHelper.accessor('actions', {
        header: 'Action',
        cell: ({ row }) => (
          <div className='flex items-center'>
            <IconButton
              onClick={() => {
                setUserId(row.original.id)
                setOpenConfirm(true)
              }}
            >
              <i className='tabler-trash text-textSecondary' />
            </IconButton>
            <OptionMenu
              iconButtonProps={{ size: 'medium' }}
              iconClassName='text-textSecondary'
              options={[
                {
                  text: 'Edit',
                  icon: 'tabler-edit',
                  menuItemProps: {
                    onClick: () => {
                      dispatch(setUser(row.original))
                      setAddUserOpen(true)
                    }
                  }
                }
              ]}
            />
          </div>
        ),
        enableSorting: false
      })
    ],
    // eslint-disable-next-line react-hooks/exhaustive-deps
    [data]
  )

  const table = useReactTable({
    data: users as User[],
    columns,
    filterFns: {
      fuzzy: fuzzyFilter
    },
    state: {
      rowSelection,
      pagination: {
        pageIndex: currentPage,
        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)
  })

  const getAvatar = (params: Pick<UsersType, 'avatar' | 'fullName'>) => {
    const { avatar, fullName } = params

    if (avatar) {
      return <CustomAvatar src={avatar} size={34} />
    } else {
      return <CustomAvatar size={34}>{getInitials(fullName as string)}</CustomAvatar>
    }
  }

  return (
    <>
      <Card>
        {/* <CardHeader title='Filters' className='pbe-4' /> */}
        {/* <TableFilters setData={setFilteredData} tableData={data} /> */}
        <div className='flex justify-between flex-col items-start md:flex-row md:items-center p-6 border-bs gap-4'>
          <DebouncedInput
            value={search}
            onChange={value => setSearch(value as string)}
            placeholder='Search User'
            className='max-sm:is-full'
          />
          <div className='flex flex-col sm:flex-row max-sm:is-full items-start sm:items-center gap-4'>
            <CustomTextField
              select
              value={pageSize}
              onChange={handlePageSizeChange}
              className='max-sm:is-full sm:is-[70px]'
            >
              <MenuItem value='10'>10</MenuItem>
              <MenuItem value='25'>25</MenuItem>
              <MenuItem value='50'>50</MenuItem>
            </CustomTextField>
            <Button
              color='secondary'
              variant='tonal'
              startIcon={<i className='tabler-upload' />}
              className='max-sm:is-full'
            >
              Export
            </Button>
            <Button
              variant='contained'
              startIcon={<i className='tabler-plus' />}
              onClick={() => setAddUserOpen(!addUserOpen)}
              className='max-sm:is-full'
            >
              Add New User
            </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>

      <AddUserDrawer open={addUserOpen} handleClose={() => setAddUserOpen(!addUserOpen)} />

      <ConfirmDeleteDialog
        open={openConfirm}
        onClose={() => setOpenConfirm(false)}
        onConfirm={handleDelete}
        isLoading={deleteUser.isPending}
        title='Delete User'
        message='Are you sure you want to delete this User? This action cannot be undone.'
      />
    </>
  )
}

export default UserListTable