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: / var / canvas / node_modules / @canvas / quiz-log-auditing / jquery /
Filename : event.js
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/*
 * Copyright (C) 2018 - present Instructure, Inc.
 *
 * This file is part of Canvas.
 *
 * Canvas is free software: you can redistribute it and/or modify it under
 * the terms of the GNU Affero General Public License as published by the Free
 * Software Foundation, version 3 of the License.
 *
 * Canvas is distributed in the hope that it will be useful, but WITHOUT ANY
 * WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
 * A PARTICULAR PURPOSE. See the GNU Affero General Public License for more
 * details.
 *
 * You should have received a copy of the GNU Affero General Public License along
 * with this program. If not, see <http://www.gnu.org/licenses/>.
 */

import {clone} from 'lodash'
import K from './constants'
import generateUUID from './util/generateUUID'

export default class QuizEvent {
  // @internal Create an Event from the JSON version stored in localStorage.
  static fromJSON(descriptor) {
    const event = new QuizEvent(descriptor.event_type, descriptor.event_data)
    event.recordedAt = new Date(descriptor.client_timestamp)
    return event
  }

  constructor(type, data) {
    if (!type) {
      throw new Error('An event type must be specified.')
    }

    this._id = generateUUID()
    this._state = K.EVT_STATE_PENDING_DELIVERY

    // @property {String} type
    //
    // A unique type specifier for this event.
    // This is a required property.
    //
    // See ./constants.js for the defined event types.
    this.type = type

    // @property {Mixed} [data=null]
    //
    // Custom event data. This *may* be present.
    this.data = clone(data)

    // @property {Date} recordedAt
    // @readonly
    //
    // Time at which the event was recorded. This is always present.
    this.recordedAt = new Date()
  }

  isPendingDelivery() {
    return this._state === K.EVT_STATE_PENDING_DELIVERY
  }

  isBeingDelivered() {
    return this._state === K.EVT_STATE_IN_DELIVERY
  }

  wasDelivered() {
    return this._state === K.EVT_STATE_DELIVERED
  }

  toJSON() {
    return {
      event_type: this.type,
      event_data: this.data,
      client_timestamp: this.recordedAt,
    }
  }

  toString() {
    return JSON.stringify(this.toJSON())
  }
}