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 { getLocalRateUrl, sendVideoRateChange } from '../../../lib/activitypub/video-rates'
   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 import { HttpStatusCode } from '../../../../shared/core-utils/miscs/http-error-codes'
  11
  12 const rateVideoRouter = express.Router()
  13
  14 rateVideoRouter.put('/:id/rate',
  15   authenticate,
  16   asyncMiddleware(videoUpdateRateValidator),
  17   asyncRetryTransactionMiddleware(rateVideo)
  18 )
  19
  20 // ---------------------------------------------------------------------------
  21
  22 export {
  23   rateVideoRouter
  24 }
  25
  26 // ---------------------------------------------------------------------------
  27
  28 async function rateVideo (req: express.Request, res: express.Response) {
  29   const body: UserVideoRateUpdate = req.body
  30   const rateType = body.rating
  31   const videoInstance = res.locals.videoAll
  32   const userAccount = res.locals.oauth.token.User.Account
  33
  34   await sequelizeTypescript.transaction(async t => {
  35     const sequelizeOptions = { transaction: t }
  36
  37     const accountInstance = await AccountModel.load(userAccount.id, t)
  38     const previousRate = await AccountVideoRateModel.load(accountInstance.id, videoInstance.id, t)
  39
  40     let likesToIncrement = 0
  41     let dislikesToIncrement = 0
  42
  43     if (rateType === VIDEO_RATE_TYPES.LIKE) likesToIncrement++
  44     else if (rateType === VIDEO_RATE_TYPES.DISLIKE) dislikesToIncrement++
  45
  46     // There was a previous rate, update it
  47     if (previousRate) {
  48       // We will remove the previous rate, so we will need to update the video count attribute
  49       if (previousRate.type === 'like') likesToIncrement--
  50       else if (previousRate.type === 'dislike') dislikesToIncrement--
  51
  52       if (rateType === 'none') { // Destroy previous rate
  53         await previousRate.destroy(sequelizeOptions)
  54       } else { // Update previous rate
  55         previousRate.type = rateType
  56         previousRate.url = getLocalRateUrl(rateType, userAccount.Actor, videoInstance)
  57         await previousRate.save(sequelizeOptions)
  58       }
  59     } else if (rateType !== 'none') { // There was not a previous rate, insert a new one if there is a rate
  60       const query = {
  61         accountId: accountInstance.id,
  62         videoId: videoInstance.id,
  63         type: rateType,
  64         url: getLocalRateUrl(rateType, userAccount.Actor, videoInstance)
  65       }
  66
  67       await AccountVideoRateModel.create(query, sequelizeOptions)
  68     }
  69
  70     const incrementQuery = {
  71       likes: likesToIncrement,
  72       dislikes: dislikesToIncrement
  73     }
  74
  75     await videoInstance.increment(incrementQuery, sequelizeOptions)
  76
  77     await sendVideoRateChange(accountInstance, videoInstance, likesToIncrement, dislikesToIncrement, t)
  78
  79     logger.info('Account video rate for video %s of account %s updated.', videoInstance.name, accountInstance.name)
  80   })
  81
  82   return res.type('json')
  83             .status(HttpStatusCode.NO_CONTENT_204)
  84             .end()
  85 }