'use client'

import React, { forwardRef, Suspense, useCallback, useEffect, useImperativeHandle, useRef, useState } from 'react'
import dynamic from 'next/dynamic'
import qs from 'qs'
import { keepPreviousData, useQuery, useQueryClient } from '@tanstack/react-query'
import { usePathname, useRouter } from 'next/navigation'

import type { Selection, SortDescriptor } from '@/types/heroui'
import useDisclosure from '@/hooks/useDisclosure'
import { addToast } from '@/lib/toast'
import { TableSkeleton } from '@/components/feedback/LoadingState'
import { downloadExcel, isEmptyObject } from '@/helpers'
import { type ApiWithParams, type PaginationListColumnType } from '@/types'
import useQueryParams from '@/hooks/useQueryParams'
import { adminKeys } from '@/queries/admin/adminKeys'
import PaginatedListToolbar from '@/components/paginated-list/PaginatedListToolbar'
import PaginatedListPagination, { ROWS_PER_PAGE_OPTIONS } from '@/components/paginated-list/PaginatedListPagination'
import PaginatedListTable from '@/components/paginated-list/PaginatedListTable'
import { buildListParams, type PaginatedListRow } from '@/components/paginated-list/paginatedListUtils'
import { usePaginatedListFilters } from '@/components/paginated-list/usePaginatedListFilters'
import { fetchPaginatedList, fetchPaginatedListExport } from '@/components/paginated-list/paginatedListApi'
import { handleServiceError } from '@/services/errorHandler'

const PaginatedListFilterModal = dynamic(() => import('@/components/paginated-list/PaginatedListFilterModal'), {
  ssr: false,
})

type ChildrenType = Record<string, (data: PaginatedListRow, cellValue: unknown) => React.ReactNode>

export interface PaginatedListHandle {
  exelReport: (fileName: string, newUrl: string) => Promise<void>
  filters: Record<string, unknown>
  openFilterModal: () => void
  refresh: () => void
}

interface PaginatedListProps {
  bulkActions?: React.ReactNode | ((selectedKeys: Selection) => React.ReactNode)
  columns: PaginationListColumnType[]
  staticData?: PaginatedListRow[]
  selectionMode?: 'single' | 'multiple' | 'none'
  url?: string
  itemsKey?: string
  children?: ChildrenType | never[]
  urlParams?: ApiWithParams
  hasDynamicButton?: boolean
  dynamicButtonText?: string
  onDynamicButtonClick?: () => void
  dynamicTopSection?: React.ReactNode
  backBtnUrl?: string
  filterPrefix?: string
  tableWrapperClass?: string
}

const PaginatedList = forwardRef(
  (
    {
      columns,
      bulkActions,
      staticData = [],
      selectionMode = 'none',
      url,
      itemsKey,
      children = {},
      urlParams = {
        page: 1,
        pageSize: 20,
        sort: '',
        filters: {},
      },
      hasDynamicButton,
      dynamicButtonText = 'افزودن',
      onDynamicButtonClick,
      dynamicTopSection,
      backBtnUrl,
      filterPrefix,
      tableWrapperClass = 'table-max-height p-0',
    }: PaginatedListProps,
    ref
  ) => {
    type DataType = PaginatedListRow

    const { isOpen, onOpenChange, onOpen, onClose } = useDisclosure()
    const router = useRouter()
    const pathname = usePathname()
    const queryParams = useQueryParams()
    const queryClient = useQueryClient()

    const [hasHydrated, setHasHydrated] = useState(false)
    const [isExporting, setIsExporting] = useState(false)
    const {
      clearFilters: handleClearFilter,
      filters,
      getFilters,
      removeFilter: handleRemoveFilter,
      setFilter: handleSetFilter,
      setFilters,
      setSelectFilter,
    } = usePaginatedListFilters()
    const [selectedKeys, setSelectedKeys] = useState<Selection>(new Set([]))
    const [page, setPage] = useState(urlParams.page || 1)
    const [rowsPerPage, setRowsPerPage] = useState(urlParams.pageSize || Number(ROWS_PER_PAGE_OPTIONS[0].code))
    const [sortString, setSortString] = useState<string>('')
    const [sortDescriptor, setSortDescriptor] = useState<SortDescriptor>({
      column: 'createdAt',
      direction: 'ascending',
    })

    // استفاده از useRef برای تشخیص اولین اجرا
    const isFirstRender = useRef(true)

    const preparingFilter = (resultType?: number) =>
      buildListParams({
        filterPrefix,
        // Read from ref so Enter/commit values are included before React re-renders.
        filters: getFilters(),
        page,
        resultType,
        rowsPerPage,
        sort: sortString,
        urlParams,
      })

    const fetchParams = preparingFilter()

    const listQuery = useQuery({
      queryKey: adminKeys.list(url ?? '', fetchParams),
      queryFn: async ({ signal }) => {
        try {
          if (!url) throw new Error('url is required')

          return await fetchPaginatedList({
            itemsKey,
            page,
            params: fetchParams,
            rowsPerPage,
            signal,
            url,
          })
        } catch (error: unknown) {
          if (error instanceof Error && (error.name === 'CanceledError' || error.name === 'AbortError')) throw error
          throw handleServiceError(error, { errorMode: 'silent' })
        }
      },
      enabled: Boolean(url) && hasHydrated,
      placeholderData: keepPreviousData,
    })

    const data: PaginatedListRow[] = url ? (listQuery.data?.items ?? []) : staticData
    const totalItems = url ? (listQuery.data?.pagination.totalItems ?? 0) : staticData.length
    const isLoading = (url ? listQuery.isLoading : false) || isExporting
    const loadError = url && listQuery.error ? listQuery.error.message : null

    // Exposing the function to parent or other components
    useImperativeHandle(ref, () => ({
      exelReport,
      filters,
      openFilterModal: onOpen,
      refresh: () => {
        if (url) void queryClient.invalidateQueries({ queryKey: adminKeys.listByUrl(url) })
      },
    }))

    useEffect(() => {
      if (!isEmptyObject(queryParams)) {
        const { page: queryPage, pageSize: queryPageSize, sort } = queryParams

        if (queryPage) {
          setPage(Number(queryPage))
        }

        if (queryPageSize) {
          setRowsPerPage(Number(queryPageSize))
        }

        if (sort) {
          const direction = sort.startsWith('-') ? 'descending' : 'ascending'
          const column = sort.startsWith('-') ? sort.slice(1) : sort

          setSortDescriptor({
            column,
            direction,
          })
        }

        const filtersArray = Object.keys(queryParams)?.filter((key) => key?.startsWith('filters'))

        if (filtersArray?.length) {
          filtersArray.map((item) => {
            const value = queryParams[item]
            const key = /\[(.*?)\]/.exec(item)?.[1]

            if (key) {
              if (value.includes(',')) {
                setFilters((prev) => ({
                  ...prev,
                  [key]: {
                    from: value.split(',')[0],
                    to: value.split(',')[1],
                  },
                }))
              } else {
                setFilters((prev) => ({
                  ...prev,
                  [key]: value,
                }))
              }
            }
          })
        }
      }
      setHasHydrated(true)
      // URL state is intentionally hydrated once, then the query below is
      // allowed to run (see hasHydrated/enabled). Subscribing to queryParams
      // here would form a loop with the URL-sync effect further down.
      // eslint-disable-next-line react-hooks/exhaustive-deps
    }, [])

    useEffect(() => {
      if (!listQuery.data) return

      if (listQuery.data.pagination.page !== page) setPage(listQuery.data.pagination.page)
      if (listQuery.data.pagination.pageSize !== rowsPerPage) setRowsPerPage(listQuery.data.pagination.pageSize)
      // Mirrors the server's (possibly clamped/normalized) page/pageSize back
      // into state, same as the old handleFetch's post-response sync.
      // eslint-disable-next-line react-hooks/exhaustive-deps
    }, [listQuery.data])

    useEffect(() => {
      if (listQuery.error) {
        addToast({ title: listQuery.error.message, color: 'danger' })
      }
    }, [listQuery.error])

    useEffect(() => {
      if (!hasHydrated || !url) return

      const filteredQueryParams = Object.fromEntries(
        Object.entries(queryParams).filter(([key]) => !(key in fetchParams) && !key.startsWith('filters'))
      )

      const urlWithFetchParams =
        pathname?.split('?')[0] + '?' + qs.stringify({ ...filteredQueryParams, ...fetchParams }, { arrayFormat: 'brackets' })

      router.replace(urlWithFetchParams, { scroll: false })
      // These values are the explicit request triggers; queryParams/pathname/
      // router are read fresh but shouldn't themselves re-trigger this sync.
      // eslint-disable-next-line react-hooks/exhaustive-deps
    }, [hasHydrated, url, page, rowsPerPage, sortString, filters])

    useEffect(() => {
      if (!listQuery.dataUpdatedAt) return undefined

      const timer = setTimeout(() => {
        const scrollableDiv = document.querySelector('.table-wrapper')

        if (scrollableDiv) {
          scrollableDiv.scrollTo({
            top: 0,
            behavior: 'smooth',
          })
        } else {
          window.scrollTo({
            top: 0,
            behavior: 'smooth',
          })
        }
      }, 250)

      return () => {
        clearTimeout(timer)
      }
    }, [listQuery.dataUpdatedAt])

    const handleSort = () => {
      const sortStringTemp = sortDescriptor.direction === 'ascending' ? sortDescriptor.column : `-${sortDescriptor.column}`

      setSortString(sortStringTemp as string)
    }

    const pages = Math.ceil(totalItems / rowsPerPage)

    useEffect(() => {
      // چک کردن اینکه آیا اولین اجرا است یا نه
      if (isFirstRender.current) {
        isFirstRender.current = false

        return // از اجرای درخواست در بار اول جلوگیری می‌کند
      }

      handleSort()
      // sortDescriptor is the explicit sort trigger.
      // eslint-disable-next-line react-hooks/exhaustive-deps
    }, [sortDescriptor])

    const renderCell = useCallback(
      (item: DataType, columnKey: React.Key) => {
        const cellValue = item[columnKey as keyof DataType]

        // Ensure children is of type ChildrenType before using it
        if (children && typeof children === 'object' && !(children instanceof Array) && (columnKey as string) in children) {
          const columnKeyString = columnKey as keyof typeof children

          return children[columnKeyString](item, cellValue)
        }

        return cellValue as React.ReactNode
      },
      [children]
    )

    const onNextPage = useCallback(() => {
      if (page < pages) {
        setPage(page + 1)
      }
    }, [page, pages])

    const onPreviousPage = useCallback(() => {
      if (page > 1) {
        setPage(page - 1)
      }
    }, [page])

    const onRowsPerPageChange = useCallback((nextRowsPerPage: number) => {
      setRowsPerPage(nextRowsPerPage)
      setPage(1)
    }, [])

    const runFilters = () => {
      setPage(1)
      onClose()
    }

    const exelReport = async (fileName: string, newUrl: string) => {
      try {
        setIsExporting(true)
        const params = preparingFilter(1)

        const exportUrl = newUrl || url

        if (!exportUrl) return
        const fileData = await fetchPaginatedListExport(exportUrl, params)

        downloadExcel(fileData, fileName)
      } finally {
        setIsExporting(false)
      }
    }

    const topContent = (
      <PaginatedListToolbar
        activeFilterCount={Object.keys(filters).length}
        backBtnUrl={backBtnUrl}
        bulkActions={typeof bulkActions === 'function' ? bulkActions(selectedKeys) : bulkActions}
        dynamicButtonText={dynamicButtonText}
        dynamicTopSection={dynamicTopSection}
        hasDynamicButton={hasDynamicButton}
        hasFilters={columns.some((column) => column.filterable)}
        selectedKeys={selectedKeys}
        selectionMode={selectionMode}
        onBack={(href) => {
          router.push(href)
        }}
        onClearSelection={() => {
          setSelectedKeys(new Set())
        }}
        onDynamicButtonClick={onDynamicButtonClick}
        onOpenFilters={onOpen}
      />
    )

    const bottomContent = (
      <PaginatedListPagination
        dataLength={data.length}
        page={page}
        pages={pages}
        rowsPerPage={rowsPerPage}
        selectedKeys={selectedKeys}
        selectionMode={selectionMode}
        totalItems={totalItems}
        onNextPage={onNextPage}
        onPageChange={setPage}
        onPreviousPage={onPreviousPage}
        onRowsPerPageChange={onRowsPerPageChange}
      />
    )

    return (
      <>
        <PaginatedListTable
          bottomContent={bottomContent}
          columns={columns.filter((column) => !column.hideInTable)}
          data={data}
          filters={filters}
          isLoading={isLoading}
          loadError={loadError}
          selectedKeys={selectedKeys}
          selectionMode={selectionMode}
          sortDescriptor={sortDescriptor}
          sortString={sortString}
          tableWrapperClass={tableWrapperClass}
          topContent={topContent}
          onRemoveFilter={handleRemoveFilter}
          onRenderCell={renderCell}
          onRetry={() => void listQuery.refetch()}
          onRunFilters={runFilters}
          onSelectedKeysChange={setSelectedKeys}
          onSetFilter={handleSetFilter}
          onSetSelectFilter={setSelectFilter}
          onSortChange={setSortDescriptor}
        />
        {isOpen ? (
          <PaginatedListFilterModal
            columns={columns}
            filters={filters}
            isLoading={isLoading}
            isOpen={isOpen}
            onAccept={runFilters}
            onClear={handleClearFilter}
            onOpenChange={onOpenChange}
            onRemove={handleRemoveFilter}
            onSelect={setSelectFilter}
            onSet={handleSetFilter}
          />
        ) : null}
      </>
    )
  }
)

PaginatedList.displayName = 'PaginatedList'

const PaginatedListWrapper = forwardRef((props: PaginatedListProps, ref) => {
  const columnCount = props.columns?.length || 4

  return (
    <Suspense
      fallback={
        <div className="admin-surface overflow-hidden">
          {props.columns?.length ? (
            <div className="flex gap-6 border-b border-secondary-40 bg-secondary-50/90 px-4 py-3">
              {props.columns.map((column) => (
                <p
                  key={column.field}
                  className="min-w-0 flex-1 text-right text-smt-bold text-secondary-30"
                >
                  {column.label}
                </p>
              ))}
            </div>
          ) : null}
          <TableSkeleton
            columnCount={columnCount}
            showHeader={false}
          />
        </div>
      }
    >
      <PaginatedList
        ref={ref}
        {...props}
      />
    </Suspense>
  )
})

PaginatedListWrapper.displayName = 'PaginatedListWrapper'

export default PaginatedListWrapper