'use strict'

var visitChildren = require('unist-util-visit-children')

module.exports = visitChildren(makeInitialWhiteSpaceSiblings)

// Move white space starting a sentence up, so they are the siblings of
// sentences.
function makeInitialWhiteSpaceSiblings(child, index, parent) {
  var children = child.children
  var next

  if (
    children &&
    children.length !== 0 &&
    children[0].type === 'WhiteSpaceNode'
  ) {
    parent.children.splice(index, 0, children.shift())
    next = children[0]

    if (next && next.position && child.position) {
      child.position.start = next.position.start
    }
  }
}