"use client"

import * as React from "react"
import { useRouter } from "next/navigation"
import type {
  DataTableAdvancedFilterField,
  DataTableFilterField,
  DataTableRowAction,
} from "@/types/table"

import { toSentenceCase } from "@/lib/utils" 
import { useDataTable } from "@/hooks/use-data-table"
import { DataTable } from "@/components/data-table/data-table"
import { DataTableAdvancedToolbar } from "@/components/data-table/data-table-advanced-toolbar"
import { getColumns } from "./cbe-table-columns"
import { CommentSheet, CbeComment } from "./comments-sheet"
import { VendorWithCbeFields } from "@/config/vendorCbeColumnsConfig"
import { fetchRfqAttachmentsbyCommentId, getAllCBE } from "@/lib/rfqs/service"
import { VendorsTableToolbarActions } from "./cbe-table-toolbar-actions"
import { InviteVendorsDialog } from "./invite-vendors-dialog"
import { VendorContactsDialog } from "@/lib/rfqs/cbe-table/vendor-contact-dialog"
import { useSession } from "next-auth/react" // Next-auth session hook 추가



import { toast } from "sonner"

interface VendorsTableProps {
  promises: Promise<[
    Awaited<ReturnType<typeof getAllCBE>>,
  ]>
}

export function AllCbeTable({ promises }: VendorsTableProps) {

  // Suspense로 받아온 데이터
  const [{ data, pageCount }] = React.use(promises)
  const { data: session } = useSession() // 세션 정보 가져오기

  const currentUserId = session?.user?.id ? parseInt(session.user.id, 10) : 0
  const currentUser = session?.user

  const [rowAction, setRowAction] = React.useState<DataTableRowAction<VendorWithCbeFields> | null>(null)
  // **router** 획득
  const router = useRouter()
  // 댓글 시트 관련 state
  const [initialComments, setInitialComments] = React.useState<CbeComment[]>([])
  const [isLoadingComments, setIsLoadingComments] = React.useState(false)
  
  const [commentSheetOpen, setCommentSheetOpen] = React.useState(false)
  const [selectedVendorId, setSelectedVendorId] = React.useState<number | null>(null)
  const [selectedCbeId, setSelectedCbeId] = React.useState<number | null>(null)
  const [isContactDialogOpen, setIsContactDialogOpen] = React.useState(false)
  const [selectedVendor, setSelectedVendor] = React.useState<VendorWithCbeFields | null>(null)
  const [selectedRfqId, setSelectedRfqId] = React.useState<number | null>(null)

  // -----------------------------------------------------------
  // 특정 action이 설정될 때마다 실행되는 effect
  // -----------------------------------------------------------
  React.useEffect(() => {
    if (rowAction?.type === "comments") {
      // rowAction가 새로 세팅된 뒤 여기서 openCommentSheet 실행
      openCommentSheet(Number(rowAction.row.original.responseId))
    } 
  }, [rowAction])

  // -----------------------------------------------------------
  // 댓글 시트 열기
  // -----------------------------------------------------------
  async function openCommentSheet(responseId: number) {
    setInitialComments([])
    setIsLoadingComments(true)
    const comments = rowAction?.row.original.comments
    const rfqId = rowAction?.row.original.rfqId
    const vendorId = rowAction?.row.original.vendorId
    try {
    if (comments && comments.length > 0) {
      const commentWithAttachments: CbeComment[] = await Promise.all(
        comments.map(async (c) => {
          const attachments = await fetchRfqAttachmentsbyCommentId(c.id)

          return {
            ...c,
            commentedBy: currentUserId, // DB나 API 응답에 있다고 가정
            attachments,
          }
        })
      )
      // 3) state에 저장 -> CommentSheet에서 initialComments로 사용
      setInitialComments(commentWithAttachments)
    }

    if(vendorId){ setSelectedVendorId(vendorId)}
    if(rfqId){ setSelectedRfqId(rfqId)}
    setSelectedCbeId(responseId)
    setCommentSheetOpen(true)
  }catch (error) {
    console.error("Error loading comments:", error)
    toast.error("Failed to load comments")
  } finally {
    // End loading regardless of success/failure
    setIsLoadingComments(false)
  }
}

const openVendorContactsDialog = (vendorId: number, vendor: VendorWithCbeFields) => {
  setSelectedVendorId(vendorId)
  setSelectedVendor(vendor)
  setIsContactDialogOpen(true)
}

  // -----------------------------------------------------------
  // 테이블 컬럼
  // -----------------------------------------------------------
  const columns = React.useMemo(
    () => getColumns({ setRowAction, router, openCommentSheet, openVendorContactsDialog }),
    [setRowAction, router]
  )

  // -----------------------------------------------------------
  // 필터 필드
  // -----------------------------------------------------------
  const filterFields: DataTableFilterField<VendorWithCbeFields>[] = [
    // 예: 표준 필터
  ]
  const advancedFilterFields: DataTableAdvancedFilterField<VendorWithCbeFields>[] = [
    { id: "vendorName", label: "Vendor Name", type: "text" },
    { id: "vendorCode", label: "Vendor Code", type: "text" },
    { id: "respondedAt", label: "Updated at", type: "date" },
  ]

  // -----------------------------------------------------------
  // 테이블 생성 훅
  // -----------------------------------------------------------
  const { table } = useDataTable({
    data,
    columns,
    pageCount,
    filterFields,
    enablePinning: true,
    enableAdvancedFilter: true,
    initialState: {
      sorting: [{ id: "respondedAt", desc: true }],
      columnPinning: { right: ["comments"] },
    },
    getRowId: (originalRow) => (`${originalRow.vendorId}${originalRow.rfqId}`),
    shallow: false,
    clearOnDefault: true,
  })

  return (
    <>
      <DataTable table={table}>
        <DataTableAdvancedToolbar
          table={table}
          filterFields={advancedFilterFields}
          shallow={false}
        >
          <VendorsTableToolbarActions table={table}  rfqId={selectedRfqId ?? 0} />
        </DataTableAdvancedToolbar>
      </DataTable>

      {/* 댓글 시트 */}
      <CommentSheet
        currentUserId={currentUserId}
        open={commentSheetOpen}
        onOpenChange={setCommentSheetOpen}
        vendorId={selectedVendorId ?? 0}
        rfqId={selectedRfqId ?? 0}  
        cbeId={selectedCbeId ?? 0}
        isLoading={isLoadingComments} 
        initialComments={initialComments}
      />
      
      <InviteVendorsDialog
        vendors={rowAction?.row.original ? [rowAction?.row.original] : []}
        onOpenChange={() => setRowAction(null)}
        rfqId={selectedRfqId ?? 0}
        open={rowAction?.type === "invite"}
        showTrigger={false}
        currentUser={currentUser}
      />

      <VendorContactsDialog
        isOpen={isContactDialogOpen}
        onOpenChange={setIsContactDialogOpen}
        vendorId={selectedVendorId}
        vendor={selectedVendor}
      />
    </>
  )
}