stack/packages/ui/src/components/Select.tsx

import type { SelectHTMLAttributes } from "react";

export interface SelectOption {
  value: string;
  label: string;
  disabled?: boolean;
}

export interface SelectProps extends Omit<SelectHTMLAttributes<HTMLSelectElement>, "size"> {
  label?: string;
  error?: string;
  helperText?: string;
  fullWidth?: boolean;
  options: SelectOption[];
  placeholder?: string;
}

export function Select({
  label,
  error,
  helperText,
  fullWidth = false,
  options,
  placeholder = "Select an option...",
  className = "",
  id,
  ...props
}: SelectProps) {
  const selectId = id || `select-${Math.random().toString(36).substr(2, 9)}`;
  const errorId = error ? `${selectId}-error` : undefined;
  const helperId = helperText ? `${selectId}-helper` : undefined;

  const baseStyles = "px-3 py-2 border rounded-md focus:outline-none focus:ring-2 focus:ring-blue-500 transition-colors bg-white";
  const widthStyles = fullWidth ? "w-full" : "";
  const errorStyles = error ? "border-red-500 focus:ring-red-500" : "border-gray-300";

  const combinedClassName = [baseStyles, widthStyles, errorStyles, className].filter(Boolean).join(" ");

  return (
    <div className={fullWidth ? "w-full" : ""}>
      {label && (
        <label
          htmlFor={selectId}
          className="block text-sm font-medium text-gray-700 mb-1"
        >
          {label}
        </label>
      )}
      <select
        id={selectId}
        className={combinedClassName}
        aria-invalid={error ? "true" : "false"}
        aria-describedby={[errorId, helperId].filter(Boolean).join(" ") || undefined}
        {...props}
      >
        <option value="" disabled>
          {placeholder}
        </option>
        {options.map((option) => (
          <option
            key={option.value}
            value={option.value}
            disabled={option.disabled}
          >
            {option.label}
          </option>
        ))}
      </select>
      {error && (
        <p id={errorId} className="mt-1 text-sm text-red-600" role="alert">
          {error}
        </p>
      )}
      {helperText && !error && (
        <p id={helperId} className="mt-1 text-sm text-gray-500">
          {helperText}
        </p>
      )}
    </div>
  );
}