'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';

export type ComboboxOption = {
  value: string;
  label: string;
};

interface ComboboxProps {
  options: ComboboxOption[];
  value: string;
  onValueChange: (value: string) => void;
  placeholder?: string;
  emptyMessage?: string;
  className?: string;
  searchPlaceholder?: string;
}

export function Combobox({
  options,
  value,
  onValueChange,
  placeholder = '选择选项...',
  emptyMessage = '没有找到结果',
  className,
  searchPlaceholder = '搜索...',
}: ComboboxProps) {
  const [open, setOpen] = React.useState(false);

  const selectedOption = options.find((option) => option.value === value);

  return (
    <Popover open={open} onOpenChange={setOpen}>
      <PopoverTrigger asChild>
        <Button
          variant="outline"
          role="combobox"
          aria-expanded={open}
          className={cn('w-full justify-between font-normal', className)}
        >
          {selectedOption ? selectedOption.label : placeholder}
          <ChevronsUpDown className="ml-2 h-4 w-4 shrink-0 opacity-50" />
        </Button>
      </PopoverTrigger>
      <PopoverContent className="w-[--radix-popover-trigger-width] p-0">
        <Command>
          <CommandInput placeholder={searchPlaceholder} />
          <CommandList>
            <CommandEmpty>{emptyMessage}</CommandEmpty>
            <CommandGroup className="max-h-64 overflow-y-auto">
              {options.map((option) => (
                <CommandItem
                  key={option.value}
                  value={option.label}
                  onSelect={() => {
                    onValueChange(option.value);
                    setOpen(false);
                  }}
                >
                  <Check
                    className={cn(
                      'mr-2 h-4 w-4',
                      value === option.value ? 'opacity-100' : 'opacity-0'
                    )}
                  />
                  {option.label}
                </CommandItem>
              ))}
            </CommandGroup>
          </CommandList>
        </Command>
      </PopoverContent>
    </Popover>
  );
}