// @flow
import { parseColor } from './utils'

type Props = {
  fill: string,
  fillOpacity: number,
  strokeAlign: 'center' | 'inside' | 'outside',
  strokeOpacity: number,
  strokeWeight: number,
  stroke: string,
  visible: boolean,
}

function shape({
  fill,
  fillOpacity,
  strokeAlign = 'outside',
  strokeOpacity,
  strokeWeight = 1,
  stroke,
  visible,
  ...styles
}: Props) {
  if (fill) {
    styles.backgroundColor = parseColor({ base: fill, alpha: fillOpacity })
  }

  if (stroke && strokeWeight) {
    const color = parseColor({ base: stroke, alpha: strokeOpacity })
    const shadow = styles.boxShadow ? styles.boxShadow.split(', ') : []
    if (strokeAlign === 'inside') {
      shadow.push(`inset 0px 0px 0px ${strokeWeight}px ${color}`)
    } else if (strokeAlign === 'outside') {
      shadow.push(`0px 0px 0px ${strokeWeight}px ${color}`)
    } else if (strokeAlign === 'center') {
      shadow.push(`inset 0px 0px 0px ${strokeWeight / 2}px ${color}`)
      shadow.push(`0px 0px 0px ${strokeWeight / 2}px ${color}`)
    }
    styles.boxShadow = shadow.join(', ')
  }

  if (visible === false) {
    styles.visibility = 'hidden'
  }

  return styles
}

export default shape