composr-core/src/lib/models/SnippetModel.js

CompoSR core functions

'use strict'

var _ = require('lodash')
var BaseModel = require('./BaseModel')
var utils = require('../utils.js')
var evaluateCode = require('../compilers/evaluateCode')
var DEFAULT_SNIPPET_PARAMETERS = ['exports']

var SnippetModel = function (json, domain) {
  this.json = _.cloneDeep(json) // Clone to avoid modifications on parent object

  this.id = this._generateId(domain)
  this.domain = domain

  // Stores the id on the raw model
  this.json.id = this.id

  this.compiled = {
    code: null
  }
}

SnippetModel.prototype = new BaseModel()

SnippetModel.prototype.getName = function () {
  return this.json.name
}

SnippetModel.prototype.compile = function (events) {
  var model = this
  var code = utils.decodeFromBase64(this.json.codehash)

  var codeCompiled = evaluateCode(code, DEFAULT_SNIPPET_PARAMETERS, null)

  if (codeCompiled.error) {
    events.emit('warn', model.getId() + ':evaluatecode:wrong_code', codeCompiled.error)
  } else {
    events.emit('debug', model.getId() + ':evaluatecode:good')
  }

  this.compiled.code = codeCompiled
}

SnippetModel.prototype.execute = function executeSnippet (functionMode, cb) {
  if (functionMode) {
    this.compiled.code.fn(function (res) {
      cb(res)
    })
  } else {
    this.compiled.code.script.runInNewContext({
      exports: function (res) {
        cb(res)
      }
    })
  }
}

module.exports = SnippetModel