plane/apps/app/components/ui/custom-listbox/index.tsx

import React from "react";

// headless ui
import { Listbox, Transition } from "@headlessui/react";
// types
import { Props } from "./types";

export const CustomListbox: React.FC<Props> = ({
  title = "",
  options,
  value,
  onChange,
  multiple,
  icon,
  footerOption,
  optionsFontsize,
  className,
  label,
}) => (
  <Listbox as="div" className="relative" value={value} onChange={onChange} multiple={multiple}>
    {({ open }) => (
      <>
        {label && (
          <Listbox.Label>
            <div className="mb-2 text-gray-500">{label}</div>
          </Listbox.Label>
        )}
        <Listbox.Button
          className={`flex cursor-pointer items-center gap-1 rounded-md border px-2 py-1 text-xs shadow-sm duration-300 hover:bg-gray-100 focus:border-indigo-500 focus:outline-none focus:ring-1 focus:ring-indigo-500
              ${className || "px-2 py-1"}`}
        >
          {icon ?? null}
          <div className="flex items-center gap-2 truncate">
            {Array.isArray(value) ? (
              value.map((v) => options?.find((o) => o.value === v)?.display).join(", ") ||
              `${title}`
            ) : (
              <>
                {options?.find((o) => o.value === value)?.color && (
                  <span
                    className="h-1.5 w-1.5 flex-shrink-0 rounded-full"
                    style={{
                      backgroundColor: options?.find((o) => o.value === value)?.color,
                    }}
                  />
                )}{" "}
                {options?.find((o) => o.value === value)?.display || `${title}`}
              </>
            )}
          </div>
        </Listbox.Button>

        <Transition
          show={open}
          as={React.Fragment}
          leave="transition ease-in duration-100"
          leaveFrom="opacity-100"
          leaveTo="opacity-0"
        >
          <Listbox.Options
            className={`absolute mt-1 max-h-32 min-w-[8rem] overflow-y-auto whitespace-nowrap bg-white shadow-lg ${
              optionsFontsize === "sm"
                ? "text-xs"
                : optionsFontsize === "md"
                ? "text-base"
                : optionsFontsize === "lg"
                ? "text-lg"
                : optionsFontsize === "xl"
                ? "text-xl"
                : optionsFontsize === "2xl"
                ? "text-2xl"
                : ""
            } z-10 rounded-md py-1 ring-1 ring-black ring-opacity-5 focus:outline-none`}
          >
            <div className="py-1">
              {options ? (
                options.length > 0 ? (
                  options.map((option) => (
                    <Listbox.Option
                      key={option.value}
                      className={({ selected, active }) =>
                        `${
                          selected ||
                          (Array.isArray(value)
                            ? value.includes(option.value)
                            : value === option.value)
                            ? "bg-indigo-50 font-medium"
                            : ""
                        } ${
                          active ? "bg-indigo-50" : ""
                        } relative cursor-pointer select-none p-2 text-gray-900`
                      }
                      value={option.value}
                    >
                      <span className={` flex items-center gap-2 truncate`}>
                        {option.icon}
                        {option.color && (
                          <span
                            className="h-1.5 w-1.5 flex-shrink-0 rounded-full"
                            style={{
                              backgroundColor: option.color,
                            }}
                          />
                        )}
                        {option.display}
                      </span>
                    </Listbox.Option>
                  ))
                ) : (
                  <p className="text-center text-sm text-gray-500">No options</p>
                )
              ) : (
                <p className="text-center text-sm text-gray-500">Loading...</p>
              )}
            </div>
            {footerOption ?? null}
          </Listbox.Options>
        </Transition>
      </>
    )}
  </Listbox>
);