"use client"

import * as React from "react"
import { Check, ChevronsUpDown } from "lucide-react"

import { cn } from "@/lib/utils"
import { Button } from "@/components/ui/button"
import { Command, CommandEmpty, CommandGroup, CommandInput, CommandItem, CommandList } from "@/components/ui/command"
import { Popover, PopoverContent, PopoverTrigger } from "@/components/ui/popover"

interface ComboboxProps {
  items: { label: string; value: string }[]
  value: string
  onChange: (value: string) => void
  placeholder?: string
}

export function Combobox({ items, value, onChange, placeholder = "选择选项..." }: ComboboxProps) {
  const [open, setOpen] = React.useState(false)

  return (
    <Popover open={open} onOpenChange={setOpen}>
      <PopoverTrigger asChild>
        <Button variant="outline" role="combobox" aria-expanded={open} className="w-full justify-between">
          {value ? items.find((item) => item.value === value)?.label : placeholder}
          <ChevronsUpDown className="ml-2 h-4 w-4 shrink-0 opacity-50" />
        </Button>
      </PopoverTrigger>
      <PopoverContent className="w-full p-0">
        <Command>
          <CommandInput placeholder="搜索..." />
          <CommandList>
            <CommandEmpty>未找到结果</CommandEmpty>
            <CommandGroup>
              {items.map((item) => (
                <CommandItem
                  key={item.value}
                  value={item.value}
                  onSelect={(currentValue) => {
                    onChange(currentValue === value ? "" : currentValue)
                    setOpen(false)
                  }}
                >
                  <Check className={cn("mr-2 h-4 w-4", value === item.value ? "opacity-100" : "opacity-0")} />
                  {item.label}
                </CommandItem>
              ))}
            </CommandGroup>
          </CommandList>
        </Command>
      </PopoverContent>
    </Popover>
  )
}