import { makeMap } from './makeMap'

// TODO validate this list!
// on the client, most of these probably has corresponding prop
// or, like allowFullscreen on iframe, although case is different, the attr
// affects the property properly...
// Basically, we can skip this check on the client
// but they are still needed during SSR to produce correct initial markup
export const isBooleanAttr = makeMap(
  'allowfullscreen,async,autofocus,autoplay,checked,compact,controls,declare,' +
    'default,defaultchecked,defaultmuted,defaultselected,defer,disabled,' +
    'enabled,formnovalidate,hidden,indeterminate,inert,ismap,itemscope,loop,multiple,' +
    'muted,nohref,noresize,noshade,novalidate,nowrap,open,pauseonexit,readonly,' +
    'required,reversed,scoped,seamless,selected,sortable,translate,' +
    'truespeed,typemustmatch,visible'
)

const unsafeAttrCharRE = /[>/="'\u0009\u000a\u000c\u0020]/
const attrValidationCache: Record<string, boolean> = {}

export function isSSRSafeAttrName(name: string): boolean {
  if (attrValidationCache.hasOwnProperty(name)) {
    return attrValidationCache[name]
  }
  const isUnsafe = unsafeAttrCharRE.test(name)
  if (isUnsafe) {
    console.error(`unsafe attribute name: ${name}`)
  }
  return (attrValidationCache[name] = !isUnsafe)
}

export const propsToAttrMap: Record<string, string | undefined> = {
  acceptCharset: 'accept-charset',
  className: 'class',
  htmlFor: 'for',
  httpEquiv: 'http-equiv'
}

// CSS properties that accept plain numbers
export const isNoUnitNumericStyleProp = makeMap(
  `animation-iteration-count,border-image-outset,border-image-slice,` +
    `border-image-width,box-flex,box-flex-group,box-ordinal-group,column-count,` +
    `columns,flex,flex-grow,flex-positive,flex-shrink,flex-negative,flex-order,` +
    `grid-row,grid-row-end,grid-row-span,grid-row-start,grid-column,` +
    `grid-column-end,grid-column-span,grid-column-start,font-weight,line-clamp,` +
    `line-height,opacity,order,orphans,tab-size,widows,z-index,zoom,` +
    // SVG
    `fill-opacity,flood-opacity,stop-opacity,stroke-dasharray,stroke-dashoffset,` +
    `stroke-miterlimit,stroke-opacity,stroke-width`
)