import * as React from 'react';
import styles from '@patternfly/react-styles/css/components/Form/form';
import { css } from '@patternfly/react-styles';
import cssMaxWidth from '@patternfly/react-tokens/dist/esm/c_form_m_limit_width_MaxWidth';

export interface FormProps extends Omit<React.HTMLProps<HTMLFormElement>, 'ref'> {
  /** Anything that can be rendered as Form content. */
  children?: React.ReactNode;
  /** Additional classes added to the Form. */
  className?: string;
  /** Sets the Form to horizontal. */
  isHorizontal?: boolean;
  /** Limits the max-width of the form. */
  isWidthLimited?: boolean;
  /** Sets a custom max-width for the form. */
  maxWidth?: string;
  /** @hide Forwarded ref */
  innerRef?: React.Ref<any>;
}

const FormBase: React.FunctionComponent<FormProps> = ({
  children = null,
  className = '',
  isHorizontal = false,
  isWidthLimited = false,
  maxWidth = '',
  innerRef,
  ...props
}: FormProps) => (
  <form
    noValidate
    {...(maxWidth && {
      style: {
        [cssMaxWidth.name]: maxWidth,
        ...props.style
      } as React.CSSProperties
    })}
    {...props}
    className={css(
      styles.form,
      isHorizontal && styles.modifiers.horizontal,
      (isWidthLimited || maxWidth) && styles.modifiers.limitWidth,
      className
    )}
    ref={innerRef}
  >
    {children}
  </form>
);

export const Form = React.forwardRef((props: FormProps, ref: React.Ref<any>) => <FormBase innerRef={ref} {...props} />);

Form.displayName = 'Form';