PeerTube/server/controllers/api/videos/rate.ts

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import * as express from 'express'
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import { UserVideoRateUpdate } from '../../../../shared'
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import { logger } from '../../../helpers/logger'
import { VIDEO_RATE_TYPES } from '../../../initializers/constants'
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import { getLocalRateUrl, sendVideoRateChange } from '../../../lib/activitypub/video-rates'
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import { asyncMiddleware, asyncRetryTransactionMiddleware, authenticate, videoUpdateRateValidator } from '../../../middlewares'
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import { AccountModel } from '../../../models/account/account'
import { AccountVideoRateModel } from '../../../models/account/account-video-rate'
import { sequelizeTypescript } from '../../../initializers/database'
import { HttpStatusCode } from '../../../../shared/core-utils/miscs/http-error-codes'
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const rateVideoRouter = express.Router()
rateVideoRouter.put('/:id/rate',
authenticate,
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asyncMiddleware(videoUpdateRateValidator),
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asyncRetryTransactionMiddleware(rateVideo)
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)
// ---------------------------------------------------------------------------
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export {
rateVideoRouter
}
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// ---------------------------------------------------------------------------
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async function rateVideo (req: express.Request, res: express.Response) {
const body: UserVideoRateUpdate = req.body
const rateType = body.rating
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const videoInstance = res.locals.videoAll
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const userAccount = res.locals.oauth.token.User.Account
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await sequelizeTypescript.transaction(async t => {
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const sequelizeOptions = { transaction: t }
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const accountInstance = await AccountModel.load(userAccount.id, t)
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const previousRate = await AccountVideoRateModel.load(accountInstance.id, videoInstance.id, t)
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// Same rate, nothing do to
if (rateType === 'none' && !previousRate || previousRate?.type === rateType) return
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let likesToIncrement = 0
let dislikesToIncrement = 0
if (rateType === VIDEO_RATE_TYPES.LIKE) likesToIncrement++
else if (rateType === VIDEO_RATE_TYPES.DISLIKE) dislikesToIncrement++
// There was a previous rate, update it
if (previousRate) {
// We will remove the previous rate, so we will need to update the video count attribute
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if (previousRate.type === 'like') likesToIncrement--
else if (previousRate.type === 'dislike') dislikesToIncrement--
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if (rateType === 'none') { // Destroy previous rate
await previousRate.destroy(sequelizeOptions)
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} else { // Update previous rate
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previousRate.type = rateType
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previousRate.url = getLocalRateUrl(rateType, userAccount.Actor, videoInstance)
await previousRate.save(sequelizeOptions)
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}
} else if (rateType !== 'none') { // There was not a previous rate, insert a new one if there is a rate
const query = {
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accountId: accountInstance.id,
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videoId: videoInstance.id,
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type: rateType,
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url: getLocalRateUrl(rateType, userAccount.Actor, videoInstance)
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}
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await AccountVideoRateModel.create(query, sequelizeOptions)
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}
const incrementQuery = {
likes: likesToIncrement,
dislikes: dislikesToIncrement
}
await videoInstance.increment(incrementQuery, sequelizeOptions)
await sendVideoRateChange(accountInstance, videoInstance, likesToIncrement, dislikesToIncrement, t)
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logger.info('Account video rate for video %s of account %s updated.', videoInstance.name, accountInstance.name)
})
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return res.type('json')
.status(HttpStatusCode.NO_CONTENT_204)
.end()
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}