import { InputHTMLAttributes, forwardRef, useId } from 'react';
import { getFormInputClasses, defaultLayoutConfig, type LayoutConfig } from '~/lib/layout-utils';

interface InputProps extends Omit<InputHTMLAttributes<HTMLInputElement>, 'className'> {
  className?: string;
  config?: Partial<LayoutConfig>;
  label?: string;
  error?: string;
  helperText?: string;
  fullWidth?: boolean;
  startIcon?: React.ReactNode;
  endIcon?: React.ReactNode;
}

export const Input = forwardRef<HTMLInputElement, InputProps>(({ 
  className = '', 
  config = {},
  label,
  error,
  helperText,
  fullWidth = true,
  startIcon,
  endIcon,
  id,
  ...props
}, ref) => {
  const layoutConfig = { ...defaultLayoutConfig, ...config };
  const inputClasses = getFormInputClasses(!!error);
  
  const fullWidthClass = fullWidth ? 'w-full' : '';
  const hasIconsClass = (startIcon || endIcon) ? 'relative' : '';
  
  const generatedId = useId();
  const inputId = id || generatedId;
  
  return (
    <div className={`${fullWidthClass} ${className}`} dir={layoutConfig.direction}>
      {label && (
        <label 
          htmlFor={inputId}
          className={`block text-sm font-medium mb-2 ${error ? 'text-red-700' : 'text-gray-700'} ${layoutConfig.direction === 'rtl' ? 'text-right' : 'text-left'}`}
        >
          {label}
        </label>
      )}
      
      <div className={`relative ${hasIconsClass}`}>
        {startIcon && (
          <div className={`absolute inset-y-0 ${layoutConfig.direction === 'rtl' ? 'right-0 pr-3' : 'left-0 pl-3'} flex items-center pointer-events-none`}>
            <span className="text-gray-400 sm:text-sm">
              {startIcon}
            </span>
          </div>
        )}
        
        <input
          ref={ref}
          id={inputId}
          className={`${inputClasses} ${startIcon ? (layoutConfig.direction === 'rtl' ? 'pr-10' : 'pl-10') : ''} ${endIcon ? (layoutConfig.direction === 'rtl' ? 'pl-10' : 'pr-10') : ''}`}
          dir={layoutConfig.direction}
          {...props}
        />
        
        {endIcon && (
          <div className={`absolute inset-y-0 ${layoutConfig.direction === 'rtl' ? 'left-0 pl-3' : 'right-0 pr-3'} flex items-center pointer-events-none`}>
            <span className="text-gray-400 sm:text-sm">
              {endIcon}
            </span>
          </div>
        )}
      </div>
      
      {error && (
        <p className={`mt-2 text-sm text-red-600 ${layoutConfig.direction === 'rtl' ? 'text-right' : 'text-left'}`}>
          {error}
        </p>
      )}
      
      {helperText && !error && (
        <p className={`mt-2 text-sm text-gray-500 ${layoutConfig.direction === 'rtl' ? 'text-right' : 'text-left'}`}>
          {helperText}
        </p>
      )}
    </div>
  );
});