"use client"

import * as React from "react"
import { type DataTableRowAction } from "@/types/table"
import { type ColumnDef } from "@tanstack/react-table"
import { Ellipsis } from "lucide-react"
import { userRoles, type UserView } from "@/db/schema/users"

import { formatDate } from "@/lib/utils"
import { Badge } from "@/components/ui/badge"
import { Button } from "@/components/ui/button"
import { Checkbox } from "@/components/ui/checkbox"
import {
  DropdownMenu,
  DropdownMenuContent,
  DropdownMenuItem,
  DropdownMenuRadioGroup,
  DropdownMenuRadioItem,
  DropdownMenuSeparator,
  DropdownMenuShortcut,
  DropdownMenuSub,
  DropdownMenuSubContent,
  DropdownMenuSubTrigger,
  DropdownMenuTrigger,
} from "@/components/ui/dropdown-menu"
import { DataTableColumnHeader } from "@/components/data-table/data-table-column-header"
import { UserWithCompanyAndRoles } from "@/types/user"
import { getErrorMessage } from "@/lib/handle-error"

import { modifiUser } from "@/lib/admin-users/service"
import { toast } from "sonner"

import { euserColumnsConfig } from "@/config/euserColumnsConfig"
import { DataTableColumnHeaderSimple } from "@/components/data-table/data-table-column-simple-header"
import { MultiSelect } from "@/components/ui/multi-select"

interface GetColumnsProps {
  setRowAction: React.Dispatch<React.SetStateAction<DataTableRowAction<UserView> | null>>
}

/**
 * tanstack table 컬럼 정의 (중첩 헤더 버전)
 */
export function getColumns({ setRowAction }: GetColumnsProps): ColumnDef<UserView>[] {
  // ----------------------------------------------------------------
  // 1) select 컬럼 (체크박스)
  // ----------------------------------------------------------------
  const selectColumn: ColumnDef<UserView> = {
    id: "select",
    header: ({ table }) => (
      <Checkbox
        checked={
          table.getIsAllPageRowsSelected() ||
          (table.getIsSomePageRowsSelected() && "indeterminate")
        }
        onCheckedChange={(value) => table.toggleAllPageRowsSelected(!!value)}
        aria-label="Select all"
        className="translate-y-0.5"
      />
    ),
    cell: ({ row }) => (
      <Checkbox
        checked={row.getIsSelected()}
        onCheckedChange={(value) => row.toggleSelected(!!value)}
        aria-label="Select row"
        className="translate-y-0.5"
      />
    ),
    size:40,
    enableSorting: false,
    enableHiding: false,
  }



  const groupMap: Record<string, ColumnDef<UserView>[]> = {}

  euserColumnsConfig.forEach((cfg) => {
    // 만약 group가 없으면 "_noGroup" 처리
    const groupName = cfg.group || "_noGroup"

    if (!groupMap[groupName]) {
      groupMap[groupName] = []
    }

    // child column 정의
    const childCol: ColumnDef<UserView> = {
      accessorKey: cfg.id,
      enableResizing: true,
      header: ({ column }) => (
        <DataTableColumnHeaderSimple column={column} title={cfg.label} />
      ),
      meta: {
        excelHeader: cfg.excelHeader,
        group: cfg.group,
        type: cfg.type,
      },
      cell: ({ row, cell }) => {

        if (cfg.id === "created_at") {
          const dateVal = cell.getValue() as Date
          return formatDate(dateVal)
        }

        if (cfg.id === "roles") {
          const roleValues = row.original.roles;
          return (
            <div className="flex flex-wrap gap-1">
              {roleValues.map((v) => (
                v === null?"":
                <Badge key={v} variant="outline">
                  {v}
                </Badge>
              ))}
            </div>
          );
        }

        return row.getValue(cfg.id) ?? ""
      },
    }

    groupMap[groupName].push(childCol)
  })

  // ----------------------------------------------------------------
  // 3-2) groupMap에서 실제 상위 컬럼(그룹)을 만들기
  // ----------------------------------------------------------------
  const nestedColumns: ColumnDef<UserView>[] = []

  // 순서를 고정하고 싶다면 group 순서를 미리 정의하거나 sort해야 함
  // 여기서는 그냥 Object.entries 순서
  Object.entries(groupMap).forEach(([groupName, colDefs]) => {
    if (groupName === "_noGroup") {
      // 그룹 없음 → 그냥 최상위 레벨 컬럼
      nestedColumns.push(...colDefs)
    } else {
      // 상위 컬럼
      nestedColumns.push({
        id: groupName,
        header: groupName, // "Basic Info", "Metadata" 등
        columns: colDefs,
      })
    }
  })

  // ----------------------------------------------------------------
  // 4) 최종 컬럼 배열: select, nestedColumns, actions
  // ----------------------------------------------------------------
  return [
    selectColumn,
    ...nestedColumns,
  ]
}