server/controllers/api/videos/rate.ts

   1 import * as express from 'express'
   2 import { UserVideoRateUpdate } from '../../../../shared'
   3 import { logger } from '../../../helpers/logger'
   4 import { VIDEO_RATE_TYPES } from '../../../initializers/constants'
   5 import { getRateUrl, sendVideoRateChange } from '../../../lib/activitypub'
   6 import { asyncMiddleware, asyncRetryTransactionMiddleware, authenticate, videoUpdateRateValidator } from '../../../middlewares'
   7 import { AccountModel } from '../../../models/account/account'
   8 import { AccountVideoRateModel } from '../../../models/account/account-video-rate'
   9 import { sequelizeTypescript } from '../../../initializers/database'
  10
  11 const rateVideoRouter = express.Router()
  12
  13 rateVideoRouter.put('/:id/rate',
  14   authenticate,
  15   asyncMiddleware(videoUpdateRateValidator),
  16   asyncRetryTransactionMiddleware(rateVideo)
  17 )
  18
  19 // ---------------------------------------------------------------------------
  20
  21 export {
  22   rateVideoRouter
  23 }
  24
  25 // ---------------------------------------------------------------------------
  26
  27 async function rateVideo (req: express.Request, res: express.Response) {
  28   const body: UserVideoRateUpdate = req.body
  29   const rateType = body.rating
  30   const videoInstance = res.locals.videoAll
  31   const userAccount = res.locals.oauth.token.User.Account
  32
  33   await sequelizeTypescript.transaction(async t => {
  34     const sequelizeOptions = { transaction: t }
  35
  36     const accountInstance = await AccountModel.load(userAccount.id, t)
  37     const previousRate = await AccountVideoRateModel.load(accountInstance.id, videoInstance.id, t)
  38
  39     let likesToIncrement = 0
  40     let dislikesToIncrement = 0
  41
  42     if (rateType === VIDEO_RATE_TYPES.LIKE) likesToIncrement++
  43     else if (rateType === VIDEO_RATE_TYPES.DISLIKE) dislikesToIncrement++
  44
  45     // There was a previous rate, update it
  46     if (previousRate) {
  47       // We will remove the previous rate, so we will need to update the video count attribute
  48       if (previousRate.type === 'like') likesToIncrement--
  49       else if (previousRate.type === 'dislike') dislikesToIncrement--
  50
  51       if (rateType === 'none') { // Destroy previous rate
  52         await previousRate.destroy(sequelizeOptions)
  53       } else { // Update previous rate
  54         previousRate.type = rateType
  55         previousRate.url = getRateUrl(rateType, userAccount.Actor, videoInstance)
  56         await previousRate.save(sequelizeOptions)
  57       }
  58     } else if (rateType !== 'none') { // There was not a previous rate, insert a new one if there is a rate
  59       const query = {
  60         accountId: accountInstance.id,
  61         videoId: videoInstance.id,
  62         type: rateType,
  63         url: getRateUrl(rateType, userAccount.Actor, videoInstance)
  64       }
  65
  66       await AccountVideoRateModel.create(query, sequelizeOptions)
  67     }
  68
  69     const incrementQuery = {
  70       likes: likesToIncrement,
  71       dislikes: dislikesToIncrement
  72     }
  73
  74     await videoInstance.increment(incrementQuery, sequelizeOptions)
  75
  76     await sendVideoRateChange(accountInstance, videoInstance, likesToIncrement, dislikesToIncrement, t)
  77
  78     logger.info('Account video rate for video %s of account %s updated.', videoInstance.name, accountInstance.name)
  79   })
  80
  81   return res.type('json').status(204).end()
  82 }