frontend/src/components/Select.tsx

import { useState, useRef, useEffect } from "react";

interface Option {
  value: string;
  label: string;
}

interface Props {
  options: Option[];
  value: string;
  onChange: (value: string) => void;
  placeholder?: string;
}

export default function Select({ options, value, onChange, placeholder }: Props) {
  const [open, setOpen] = useState(false);
  const ref = useRef<HTMLDivElement>(null);

  useEffect(() => {
    function handleClickOutside(e: MouseEvent) {
      if (ref.current && !ref.current.contains(e.target as Node)) {
        setOpen(false);
      }
    }
    document.addEventListener("mousedown", handleClickOutside);
    return () => document.removeEventListener("mousedown", handleClickOutside);
  }, []);

  const selected = options.find((o) => o.value === value);

  return (
    <div className="custom-select" ref={ref}>
      <button
        className="custom-select-trigger"
        onClick={() => setOpen(!open)}
        type="button"
      >
        <span>{selected?.label || placeholder || "Select..."}</span>
        <span className="custom-select-arrow">{open ? "\u25b4" : "\u25be"}</span>
      </button>
      {open && (
        <div className="custom-select-dropdown">
          {options.map((opt) => (
            <button
              key={opt.value}
              className={`custom-select-option ${opt.value === value ? "custom-select-option-active" : ""}`}
              onClick={() => {
                onChange(opt.value);
                setOpen(false);
              }}
              type="button"
            >
              {opt.label}
            </button>
          ))}
        </div>
      )}
    </div>
  );
}