/**
 * @fileoverview Forbid DOM lookup in template creation callback
 * @author Dominik Ferber
 * @copyright 2016 Dominik Ferber. All rights reserved.
 * See LICENSE file in root directory for full license.
 */

import getPropertyName from '../util/ast/getPropertyName'

const errorMessage = 'Accessing DOM from "onCreated" is forbidden. Try from "onRendered" instead.'
const jQueryNames = new Set(['$', 'jQuery'])

const isJQueryCallee = node => (
  ( // $()
   node.type === 'Identifier' && jQueryNames.has(node.name)
  ) || ( // Template.instance().$()
    node.type === 'MemberExpression' &&
    node.property.type === 'Identifier' &&
    node.property.name === '$' &&
    node.object.type === 'CallExpression' &&
    node.object.callee.type === 'MemberExpression' &&
    node.object.callee.object.type === 'Identifier' &&
    node.object.callee.object.name === 'Template' &&
    getPropertyName(node.object.callee.property) === 'instance'
  )
)

const isRelevantTemplateCallExpression = node => (
  node.type === 'CallExpression' &&
  node.callee.type === 'MemberExpression' &&
  node.callee.object.type === 'MemberExpression' &&
  node.callee.object.object.type === 'Identifier' &&
  node.callee.object.object.name === 'Template' &&
  getPropertyName(node.callee.property) === 'onCreated'
)

const isInRelevantTemplateScope = ancestors => ancestors.some(isRelevantTemplateCallExpression)

export default context => ({
  CallExpression: (node) => {
    if (!isJQueryCallee(node.callee)) return
    if (!isInRelevantTemplateScope(context.getAncestors())) return

    context.report(node, errorMessage)
  },
})

export const schema = []

@@ -456,16 +456,17 @@
  $()%0A   
+ 
 node.typ

fix indentation