'use strict'

var html = require('property-information/html')
var svg = require('property-information/svg')
var voids = require('html-void-elements')
var omission = require('./omission')
var one = require('./one')

module.exports = toHtml

var quotationMark = '"'
var apostrophe = "'"

var deprecationWarningIssued = false

function toHtml(node, options) {
  var settings = options || {}
  var quote = settings.quote || quotationMark
  var alternative = quote === quotationMark ? apostrophe : quotationMark
  var smart = settings.quoteSmart
  var value =
    node && typeof node === 'object' && 'length' in node
      ? {type: 'root', children: node}
      : node

  if (quote !== quotationMark && quote !== apostrophe) {
    throw new Error(
      'Invalid quote `' +
        quote +
        '`, expected `' +
        apostrophe +
        '` or `' +
        quotationMark +
        '`'
    )
  }

  if (settings.allowDangerousHTML !== undefined) {
    if (!deprecationWarningIssued) {
      deprecationWarningIssued = true
      console.warn(
        'Deprecation warning: `allowDangerousHTML` is a nonstandard option, use `allowDangerousHtml` instead'
      )
    }
  }

  return one(
    {
      valid: settings.allowParseErrors ? 0 : 1,
      safe: settings.allowDangerousCharacters ? 0 : 1,
      schema: settings.space === 'svg' ? svg : html,
      omit: settings.omitOptionalTags && omission,
      quote: quote,
      alternative: alternative,
      smart: smart,
      unquoted: Boolean(settings.preferUnquoted),
      tight: settings.tightAttributes,
      upperDoctype: Boolean(settings.upperDoctype),
      tightDoctype: Boolean(settings.tightDoctype),
      bogusComments: Boolean(settings.bogusComments),
      tightLists: settings.tightCommaSeparatedLists,
      tightClose: settings.tightSelfClosing,
      collapseEmpty: settings.collapseEmptyAttributes,
      dangerous: settings.allowDangerousHtml || settings.allowDangerousHTML,
      voids: settings.voids || voids.concat(),
      entities: settings.entities || {},
      close: settings.closeSelfClosing,
      closeEmpty: settings.closeEmptyElements
    },
    value
  )
}