Combobox

"use client";

import * as React from "react";
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";
import { CheckIcon, ChevronsUpDownIcon } from "lucide-react";
import { cn } from "@/lib/utils";

const frameworks = [
  { value: "next", label: "Next.js" },
  { value: "svelte", label: "SvelteKit" },
  { value: "nuxt", label: "Nuxt" },
  { value: "remix", label: "Remix" },
];

export function Demo() {
  const [open, setOpen] = React.useState(false);
  const [value, setValue] = React.useState("");

  return (
    <Popover open={open} onOpenChange={setOpen}>
      <PopoverTrigger asChild>
        <Button
          variant="outline"
          role="combobox"
          aria-expanded={open}
          className="w-[220px] justify-between"
        >
          {value
            ? frameworks.find((f) => f.value === value)?.label
            : "Selecione..."}
          <ChevronsUpDownIcon className="opacity-50" />
        </Button>
      </PopoverTrigger>
      <PopoverContent className="w-[220px] p-0">
        <Command>
          <CommandInput placeholder="Buscar..." />
          <CommandList>
            <CommandEmpty>Nenhum resultado.</CommandEmpty>
            <CommandGroup>
              {frameworks.map((f) => (
                <CommandItem
                  key={f.value}
                  value={f.value}
                  onSelect={(current) => {
                    setValue(current === value ? "" : current);
                    setOpen(false);
                  }}
                >
                  <CheckIcon
                    className={cn(
                      "mr-2 size-4",
                      value === f.value ? "opacity-100" : "opacity-0",
                    )}
                  />
                  {f.label}
                </CommandItem>
              ))}
            </CommandGroup>
          </CommandList>
        </Command>
      </PopoverContent>
    </Popover>
  );
}