import React, { ButtonHTMLAttributes, ElementType, forwardRef } from 'react'
import PropTypes from 'prop-types'
import classNames from 'classnames'

import { Colors, Shapes, colorPropType } from '../Types'
import { CLink } from '../link/CLink'

export interface CButtonProps extends ButtonHTMLAttributes<HTMLButtonElement> {
  /**
   * Toggle the active state for the component.
   */
  active?: boolean
  /**
   * A string of all className you want applied to the base component.
   */
  className?: string
  /**
   * Sets the color context of the component to one of CoreUI’s themed colors.
   *
   * @type 'primary' | 'secondary' | 'success' | 'danger' | 'warning' | 'info' | 'dark' | 'light' | string
   */
  color?: Colors
  /**
   * Component used for the root node. Either a string to use a HTML element or a component.
   */
  component?: string | ElementType
  /**
   * Toggle the disabled state for the component.
   */
  disabled?: boolean
  /**
   * The href attribute specifies the URL of the page the link goes to.
   */
  href?: string
  /**
   * The role attribute describes the role of an element in programs that can make use of it, such as screen readers or magnifiers.
   */
  role?: string
  /**
   * Select the shape of the component.
   *
   * @type 'rounded' | 'rounded-top' | 'rounded-end' | 'rounded-bottom' | 'rounded-start' | 'rounded-circle' | 'rounded-pill' | 'rounded-0' | 'rounded-1' | 'rounded-2' | 'rounded-3' | string
   */
  shape?: Shapes
  /**
   * Size the component small or large.
   */
  size?: 'sm' | 'lg'
  /**
   * Specifies the type of button. Always specify the type attribute for the `<button>` element.
   * Different browsers may use different default types for the `<button>` element.
   */
  type?: 'button' | 'submit' | 'reset'
  /**
   * Set the button variant to an outlined button or a ghost button.
   */
  variant?: 'outline' | 'ghost'
}

export const CButton = forwardRef<HTMLButtonElement | HTMLAnchorElement, CButtonProps>(
  (
    {
      children,
      className,
      color = 'primary',
      component = 'button',
      shape,
      size,
      type = 'button',
      variant,
      ...rest
    },
    ref,
  ) => {
    const _className = classNames(
      'btn',
      variant ? `btn-${variant}-${color}` : `btn-${color}`,
      { [`btn-${size}`]: size },
      shape,
      className,
    )

    return (
      <CLink
        component={rest.href ? 'a' : component}
        type={type}
        className={_className}
        {...rest}
        ref={ref}
      >
        {children}
      </CLink>
    )
  },
)

CButton.propTypes = {
  children: PropTypes.node,
  className: PropTypes.string,
  color: colorPropType,
  component: PropTypes.elementType,
  shape: PropTypes.string,
  size: PropTypes.oneOf(['sm', 'lg']),
  type: PropTypes.oneOf(['button', 'submit', 'reset']),
  variant: PropTypes.oneOf(['outline', 'ghost']),
}

CButton.displayName = 'CButton'