"use client"

import * as React from "react"
import { type DataTableRowAction } from "@/types/table"
import { type ColumnDef } from "@tanstack/react-table"
import { Ellipsis, InfoIcon, PenToolIcon, TrashIcon } from "lucide-react"

import { formatDate } from "@/lib/utils"
import { Button } from "@/components/ui/button"
import { Checkbox } from "@/components/ui/checkbox"
import {
  Tooltip,
  TooltipContent,
  TooltipProvider,
  TooltipTrigger,
} from "@/components/ui/tooltip"
import {
  DropdownMenu,
  DropdownMenuContent,
  DropdownMenuItem,
  DropdownMenuSeparator,
  DropdownMenuShortcut,
  DropdownMenuTrigger,
} from "@/components/ui/dropdown-menu"
import { Badge } from "@/components/ui/badge"

import { DataTableColumnHeaderSimple } from "@/components/data-table/data-table-column-simple-header"
import { EsgEvaluationsView } from "@/db/schema"

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

/**
 * ESG 평가표 테이블 컬럼 정의
 */
export function getColumns({ setRowAction }: GetColumnsProps): ColumnDef<EsgEvaluationsView>[] {
  
  // ----------------------------------------------------------------
  // 1) select 컬럼 (체크박스)
  // ----------------------------------------------------------------
  const selectColumn: ColumnDef<EsgEvaluationsView> = {
    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"
      />
    ),
    enableSorting: false,
    enableHiding: false,
    size: 40,
  }

  // ----------------------------------------------------------------
  // 2) 기본 정보 컬럼들
  // ----------------------------------------------------------------
  const basicColumns: ColumnDef<EsgEvaluationsView>[] = [
    {
      accessorKey: "serialNumber",
      header: ({ column }) => (
        <DataTableColumnHeaderSimple column={column} title="시리얼번호" />
      ),
      cell: ({ row }) => (
        <div className="font-medium">
          {row.getValue("serialNumber")}
        </div>
      ),
      enableSorting: true,
      enableHiding: true,
    },
    
    {
      accessorKey: "category",
      header: ({ column }) => (
        <DataTableColumnHeaderSimple column={column} title="분류" />
      ),
      cell: ({ row }) => (
        <Badge variant="secondary">
          {row.getValue("category")}
        </Badge>
      ),
    },
    {
      accessorKey: "inspectionItem",
      header: ({ column }) => (
        <DataTableColumnHeaderSimple column={column} title="점검항목" />
      ),
      cell: ({ row }) => (
        <div className="max-w-[300px] truncate" title={row.getValue("inspectionItem")}>
          {row.getValue("inspectionItem")}
        </div>
      ),
    },
  ]

  // ----------------------------------------------------------------
  // 3) 통계 정보 컬럼들
  // ----------------------------------------------------------------
  const statsColumns: ColumnDef<EsgEvaluationsView>[] = [
    {
      id: "evaluationItems",
      header: ({ column }) => (
        <DataTableColumnHeaderSimple column={column} title="평가항목" />
      ),
      cell: ({ row }) => {
        const evaluation = row.original;
        const count = evaluation.totalEvaluationItems || 0;
        
        // evaluationItemsList가 있다면 사용, 없다면 개수만 표시
        const items = (evaluation as any).evaluationItemsList || [];
        
        if (items.length > 0) {
          return (
            <div className="max-w-[250px]">
              <TooltipProvider>
                <Tooltip>
                  <TooltipTrigger asChild>
                    <div className="cursor-help">
                      <div className="flex flex-wrap gap-1">
                        {items.slice(0, 3).map((item: string, index: number) => (
                          <Badge key={index} variant="outline" className="text-xs">
                            {item.length > 15 ? `${item.substring(0, 15)}...` : item}
                          </Badge>
                        ))}
                        {items.length > 3 && (
                          <Badge variant="secondary" className="text-xs">
                            +{items.length - 3}개 더
                          </Badge>
                        )}
                      </div>
                    </div>
                  </TooltipTrigger>
                  <TooltipContent className="max-w-[300px]">
                    <div className="space-y-1">
                      <p className="font-medium">평가항목 목록:</p>
                      {items.map((item: string, index: number) => (
                        <p key={index} className="text-sm">
                          {index + 1}. {item}
                        </p>
                      ))}
                    </div>
                  </TooltipContent>
                </Tooltip>
              </TooltipProvider>
            </div>
          );
        }
        
        // 평가항목이 없는 경우
        return (
          <div className="text-center text-muted-foreground">
            <Badge variant="outline">
              {count > 0 ? `${count}개 항목` : "항목 없음"}
            </Badge>
          </div>
        );
      },
      enableSorting: false,
    },
    {
      accessorKey: "totalAnswerOptions",
      header: ({ column }) => (
        <DataTableColumnHeaderSimple column={column} title="답변옵션" />
      ),
      cell: ({ row }) => (
        <div className="text-center">
          <Badge variant="outline">
            {row.getValue("totalAnswerOptions") || 0}개
          </Badge>
        </div>
      ),
    },
  ]

  // ----------------------------------------------------------------
  // 4) 메타데이터 컬럼들
  // ----------------------------------------------------------------
  const metaColumns: ColumnDef<EsgEvaluationsView>[] = [
    {
      accessorKey: "isActive",
      header: ({ column }) => (
        <DataTableColumnHeaderSimple column={column} title="상태" />
      ),
      cell: ({ row }) => (
        <Badge variant={row.getValue("isActive") ? "default" : "secondary"}>
          {row.getValue("isActive") ? "활성" : "비활성"}
        </Badge>
      ),
    },
    {
      accessorKey: "createdAt",
      header: ({ column }) => (
        <DataTableColumnHeaderSimple column={column} title="생성일" />
      ),
      cell: ({ row }) => {
        const date = row.getValue("createdAt") as Date
        return formatDate(date, "KR")
      },
    },
    {
      accessorKey: "updatedAt",
      header: ({ column }) => (
        <DataTableColumnHeaderSimple column={column} title="수정일" />
      ),
      cell: ({ row }) => {
        const date = row.getValue("updatedAt") as Date
        return formatDate(date, "KR")
      },
    },
  ]

  // ----------------------------------------------------------------
  // 5) actions 컬럼 (드롭다운 메뉴)
  // ----------------------------------------------------------------
  const actionsColumn: ColumnDef<EsgEvaluationsView> = {
    id: "actions",
    header: "작업",
    enableHiding: false,
    cell: function Cell({ row }) {
      return (
        <DropdownMenu>
          <DropdownMenuTrigger asChild>
            <Button
              aria-label="Open menu"
              variant="ghost"
              className="flex size-8 p-0 data-[state=open]:bg-muted"
            >
              <Ellipsis className="size-4" aria-hidden="true" />
            </Button>
          </DropdownMenuTrigger>
          <DropdownMenuContent align="end" className="w-40">
            <DropdownMenuItem
              onSelect={() => setRowAction({ row, type: "view" })}
            >
              {/* <Eye className="mr-2 size-4" /> */}
              상세보기
            </DropdownMenuItem>
            <DropdownMenuItem
              onSelect={() => setRowAction({ row, type: "update" })}
            >
              {/* <Edit className="mr-2 size-4" /> */}
              수정하기
            </DropdownMenuItem>
            <DropdownMenuSeparator />
            <DropdownMenuItem
              onSelect={() => setRowAction({ row, type: "delete" })}
            >
              {/* <Trash2 className="mr-2 size-4" /> */}
              삭제하기
              <DropdownMenuShortcut>⌘⌫</DropdownMenuShortcut>
            </DropdownMenuItem>
          </DropdownMenuContent>
        </DropdownMenu>
      )
    },
    size: 80,
  }

  // ----------------------------------------------------------------
  // 6) 최종 컬럼 배열 (그룹화 버전)
  // ----------------------------------------------------------------
  return [
    selectColumn,
    {
      id: "basicInfo",
      header: "기본 정보",
      columns: basicColumns,
    },
    {
      id: "statistics",
      header: "통계",
      columns: statsColumns,
    },
    {
      id: "metadata",
      header: "메타데이터",
      columns: metaColumns,
    },
    actionsColumn,
  ]
}

// ----------------------------------------------------------------
// 7) 컬럼 설정 (필터링용)
// ----------------------------------------------------------------
export const esgEvaluationsColumnsConfig = [
  {
    id: "serialNumber",
    label: "시리얼번호",
    group: "기본 정보",
    type: "text",
    excelHeader: "Serial Number",
  },
  {
    id: "category",
    label: "분류",
    group: "기본 정보",
    type: "text",
    excelHeader: "Category",
  },
  {
    id: "inspectionItem",
    label: "점검항목",
    group: "기본 정보",
    type: "text",
    excelHeader: "Inspection Item",
  },
  {
    id: "totalEvaluationItems",
    label: "평가항목 수",
    group: "통계",
    type: "number",
    excelHeader: "Total Evaluation Items",
  },
  {
    id: "totalAnswerOptions",
    label: "답변옵션 수",
    group: "통계",
    type: "number",
    excelHeader: "Total Answer Options",
  },
  // {
  //   id: "maxPossibleScore",
  //   label: "최대점수",
  //   group: "통계",
  //   type: "number",
  //   excelHeader: "Max Possible Score",
  // },
  {
    id: "isActive",
    label: "상태",
    group: "메타데이터",
    type: "boolean",
    excelHeader: "Is Active",
  },
  {
    id: "createdAt",
    label: "생성일",
    group: "메타데이터",
    type: "date",
    excelHeader: "Created At",
  },
  {
    id: "updatedAt",
    label: "수정일",
    group: "메타데이터",
    type: "date",
    excelHeader: "Updated At",
  },
] as const;