"use client"

import * as React from "react"
import {
  ColumnDef,
  ColumnFiltersState,
  ColumnSizingState,
  flexRender,
  getCoreRowModel,
  getFacetedRowModel,
  getFacetedUniqueValues,
  getFilteredRowModel,
  getPaginationRowModel,
  getSortedRowModel,
  SortingState,
  useReactTable,
  VisibilityState,
} from "@tanstack/react-table"
import {
  IconChevronDown,
  IconChevronLeft,
  IconChevronRight,
  IconChevronsLeft,
  IconChevronsRight,
  IconLayoutColumns,
  IconPlus,
} from "@tabler/icons-react"

import { Button } from "@/components/ui/button"
import {
  DropdownMenu,
  DropdownMenuCheckboxItem,
  DropdownMenuContent,
  DropdownMenuTrigger,
} from "@/components/ui/dropdown-menu"
import { Input } from "@/components/ui/input"
import { Label } from "@/components/ui/label"
import {
  Select,
  SelectContent,
  SelectItem,
  SelectTrigger,
  SelectValue,
} from "@/components/ui/select"
import {
  Table,
  TableBody,
  TableCell,
  TableHead,
  TableHeader,
  TableRow,
} from "@/components/ui/table"

import type { ScanEngine } from "@/types/engine.types"

// 组件属性类型定义
interface EngineDataTableProps {
  data: ScanEngine[]
  columns: ColumnDef<ScanEngine>[]
  onAddNew?: () => void
  searchPlaceholder?: string
  searchColumn?: string
  addButtonText?: string
}

/**
 * 扫描引擎数据表格组件
 * 用于显示和管理扫描引擎数据
 * 包含搜索、分页、列显示控制等功能
 */
export function EngineDataTable({
  data = [],
  columns,
  onAddNew,
  searchPlaceholder = "搜索引擎名称...",
  searchColumn = "name",
  addButtonText = "新建引擎",
}: EngineDataTableProps) {
  // 表格状态管理
  const [columnVisibility, setColumnVisibility] = React.useState<VisibilityState>({})
  const [columnFilters, setColumnFilters] = React.useState<ColumnFiltersState>([])
  const [sorting, setSorting] = React.useState<SortingState>([])
  const [columnSizing, setColumnSizing] = React.useState<ColumnSizingState>({})
  const [pagination, setPagination] = React.useState<{
    pageIndex: number
    pageSize: number
  }>({
    pageIndex: 0,
    pageSize: 10,
  })

  // 过滤有效数据
  const validData = React.useMemo(() => {
    return (data || []).filter(
      (item) => item && typeof item.id !== "undefined" && item.id !== null
    )
  }, [data])

  // 创建表格实例
  const table = useReactTable({
    data: validData,
    columns,
    state: {
      sorting,
      columnVisibility,
      columnFilters,
      pagination,
      columnSizing,
    },
    enableColumnResizing: true,
    columnResizeMode: 'onChange',
    onColumnSizingChange: setColumnSizing,
    getRowId: (row) => row.id.toString(),
    onSortingChange: setSorting,
    onColumnFiltersChange: setColumnFilters,
    onColumnVisibilityChange: setColumnVisibility,
    onPaginationChange: setPagination,
    getCoreRowModel: getCoreRowModel(),
    getFilteredRowModel: getFilteredRowModel(),
    getPaginationRowModel: getPaginationRowModel(),
    getSortedRowModel: getSortedRowModel(),
    getFacetedRowModel: getFacetedRowModel(),
    getFacetedUniqueValues: getFacetedUniqueValues(),
  })


  return (
    <div className="w-full space-y-4">
      {/* 工具栏 */}
      <div className="flex items-center justify-between">
        {/* 搜索框 */}
        <div className="flex items-center space-x-2">
          <Input
            placeholder={searchPlaceholder}
            value={
              (table.getColumn(searchColumn)?.getFilterValue() as string) ?? ""
            }
            onChange={(event) =>
              table.getColumn(searchColumn)?.setFilterValue(event.target.value)
            }
            className="max-w-sm"
          />
        </div>

        {/* 右侧操作按钮 */}
        <div className="flex items-center space-x-2">
          {/* 列显示控制 */}
          <DropdownMenu>
            <DropdownMenuTrigger asChild>
              <Button variant="outline" size="sm">
                <IconLayoutColumns />
                Columns
                <IconChevronDown />
              </Button>
            </DropdownMenuTrigger>
            <DropdownMenuContent align="end">
              {table
                .getAllColumns()
                .filter(
                  (column) =>
                    typeof column.accessorFn !== "undefined" && column.getCanHide()
                )
                .map((column) => {
                  const columnNameMap: Record<string, string> = {
                    name: "引擎名称",
                    type: "类型",
                    description: "描述",
                    tools: "关联工具",
                    updated_at: "更新时间",
                  }

                  return (
                    <DropdownMenuCheckboxItem
                      key={column.id}
                      className="capitalize"
                      checked={column.getIsVisible()}
                      onCheckedChange={(value) =>
                        column.toggleVisibility(!!value)
                      }
                    >
                      {columnNameMap[column.id] || column.id}
                    </DropdownMenuCheckboxItem>
                  )
                })}
            </DropdownMenuContent>
          </DropdownMenu>

          {/* 添加新记录按钮 */}
          {onAddNew ? (
            <Button onClick={onAddNew} size="sm">
              <IconPlus className="h-4 w-4 mr-1" />
              {addButtonText}
            </Button>
          ) : null}
        </div>
      </div>

      {/* 表格容器 */}
      <div className="rounded-md border overflow-x-auto">
        <Table style={{ minWidth: table.getCenterTotalSize() }}>
          {/* 表头 */}
          <TableHeader>
            {table.getHeaderGroups().map((headerGroup) => (
              <TableRow key={headerGroup.id}>
                {headerGroup.headers.map((header) => {
                  return (
                    <TableHead 
                      key={header.id} 
                      colSpan={header.colSpan}
                      style={{ width: header.getSize() }}
                      className="relative group"
                    >
                      {header.isPlaceholder
                        ? null
                        : flexRender(
                            header.column.columnDef.header,
                            header.getContext()
                          )}
                      {header.column.getCanResize() && (
                        <div
                          onMouseDown={header.getResizeHandler()}
                          onTouchStart={header.getResizeHandler()}
                          onDoubleClick={() => header.column.resetSize()}
                          className="absolute -right-2.5 top-0 h-full w-8 cursor-col-resize select-none touch-none bg-transparent flex justify-center"
                        >
                          <div className="w-1.5 h-full bg-transparent group-hover:bg-border" />
                        </div>
                      )}
                    </TableHead>
                  )
                })}
              </TableRow>
            ))}
          </TableHeader>

          {/* 表体 */}
          <TableBody>
            {table.getRowModel().rows?.length ? (
              table.getRowModel().rows.map((row) => (
                <TableRow
                  key={row.id}
                  className="group"
                >
                  {row.getVisibleCells().map((cell) => (
                    <TableCell key={cell.id} style={{ width: cell.column.getSize() }}>
                      {flexRender(
                        cell.column.columnDef.cell,
                        cell.getContext()
                      )}
                    </TableCell>
                  ))}
                </TableRow>
              ))
            ) : (
              <TableRow>
                <TableCell
                  colSpan={columns.length}
                  className="h-24 text-center"
                >
                  暂无数据
                </TableCell>
              </TableRow>
            )}
          </TableBody>
        </Table>
      </div>

      {/* 分页控制 */}
      <div className="flex items-center justify-end px-2">
        {/* 分页控制器 */}
        <div className="flex items-center space-x-6 lg:space-x-8">
          {/* 每页显示数量选择 */}
          <div className="flex items-center space-x-2">
            <Label htmlFor="rows-per-page" className="text-sm font-medium">
              Rows per page
            </Label>
            <Select
              value={`${table.getState().pagination.pageSize}`}
              onValueChange={(value) => {
                table.setPageSize(Number(value))
              }}
            >
              <SelectTrigger className="h-8 w-[90px]" id="rows-per-page">
                <SelectValue
                  placeholder={table.getState().pagination.pageSize}
                />
              </SelectTrigger>
              <SelectContent side="top">
                {[10, 20, 50, 100, 200, 500, 1000].map((pageSize) => (
                  <SelectItem key={pageSize} value={`${pageSize}`}>
                    {pageSize}
                  </SelectItem>
                ))}
              </SelectContent>
            </Select>
          </div>

          {/* 页码信息 */}
          <div className="flex w-[100px] items-center justify-center text-sm font-medium">
            Page {table.getState().pagination.pageIndex + 1} of{" "}
            {table.getPageCount()}
          </div>

          {/* 分页按钮 */}
          <div className="flex items-center space-x-2">
            <Button
              variant="outline"
              className="hidden h-8 w-8 p-0 lg:flex"
              onClick={() => table.setPageIndex(0)}
              disabled={!table.getCanPreviousPage()}
            >
              <span className="sr-only">Go to first page</span>
              <IconChevronsLeft />
            </Button>
            <Button
              variant="outline"
              className="h-8 w-8 p-0"
              onClick={() => table.previousPage()}
              disabled={!table.getCanPreviousPage()}
            >
              <span className="sr-only">Go to previous page</span>
              <IconChevronLeft />
            </Button>
            <Button
              variant="outline"
              className="h-8 w-8 p-0"
              onClick={() => table.nextPage()}
              disabled={!table.getCanNextPage()}
            >
              <span className="sr-only">Go to next page</span>
              <IconChevronRight />
            </Button>
            <Button
              variant="outline"
              className="hidden h-8 w-8 p-0 lg:flex"
              onClick={() => table.setPageIndex(table.getPageCount() - 1)}
              disabled={!table.getCanNextPage()}
            >
              <span className="sr-only">Go to last page</span>
              <IconChevronsRight />
            </Button>
          </div>
        </div>
      </div>
    </div>
  )
}