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import * as express from 'express'
import * as Promise from 'bluebird'
import { database as db } from '../../../initializers/database'
import {
logger,
retryTransactionWrapper
} from '../../../helpers'
import {
VIDEO_RATE_TYPES,
REQUEST_VIDEO_EVENT_TYPES,
REQUEST_VIDEO_QADU_TYPES
} from '../../../initializers'
import {
addEventsToRemoteVideo,
quickAndDirtyUpdatesVideoToFriends
} from '../../../lib'
import {
authenticate,
videoRateValidator
} from '../../../middlewares'
import { UserVideoRateUpdate, VideoRateType } from '../../../../shared'
const rateVideoRouter = express.Router()
rateVideoRouter.put('/:id/rate',
authenticate,
videoRateValidator,
rateVideoRetryWrapper
)
// ---------------------------------------------------------------------------
export {
rateVideoRouter
}
// ---------------------------------------------------------------------------
function rateVideoRetryWrapper (req: express.Request, res: express.Response, next: express.NextFunction) {
const options = {
arguments: [ req, res ],
errorMessage: 'Cannot update the user video rate.'
}
retryTransactionWrapper(rateVideo, options)
.then(() => res.type('json').status(204).end())
.catch(err => next(err))
}
function rateVideo (req: express.Request, res: express.Response) {
const body: UserVideoRateUpdate = req.body
const rateType = body.rating
const videoInstance = res.locals.video
const userInstance = res.locals.oauth.token.User
return db.sequelize.transaction(t => {
return db.UserVideoRate.load(userInstance.id, videoInstance.id, t)
.then(previousRate => {
const options = { transaction: t }
let likesToIncrement = 0
let dislikesToIncrement = 0
if (rateType === VIDEO_RATE_TYPES.LIKE) likesToIncrement++
else if (rateType === VIDEO_RATE_TYPES.DISLIKE) dislikesToIncrement++
let promise: Promise<any>
// 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
if (previousRate.type === VIDEO_RATE_TYPES.LIKE) likesToIncrement--
else if (previousRate.type === VIDEO_RATE_TYPES.DISLIKE) dislikesToIncrement--
if (rateType === 'none') { // Destroy previous rate
promise = previousRate.destroy()
} else { // Update previous rate
previousRate.type = rateType as VideoRateType
promise = previousRate.save()
}
} else if (rateType !== 'none') { // There was not a previous rate, insert a new one if there is a rate
const query = {
userId: userInstance.id,
videoId: videoInstance.id,
type: rateType
}
promise = db.UserVideoRate.create(query, options)
} else {
promise = Promise.resolve()
}
return promise.then(() => ({ likesToIncrement, dislikesToIncrement }))
})
.then(({ likesToIncrement, dislikesToIncrement }) => {
const options = { transaction: t }
const incrementQuery = {
likes: likesToIncrement,
dislikes: dislikesToIncrement
}
// Even if we do not own the video we increment the attributes
// It is usefull for the user to have a feedback
return videoInstance.increment(incrementQuery, options).then(() => ({ likesToIncrement, dislikesToIncrement }))
})
.then(({ likesToIncrement, dislikesToIncrement }) => {
// No need for an event type, we own the video
if (videoInstance.isOwned()) return { likesToIncrement, dislikesToIncrement }
const eventsParams = []
if (likesToIncrement !== 0) {
eventsParams.push({
videoId: videoInstance.id,
type: REQUEST_VIDEO_EVENT_TYPES.LIKES,
count: likesToIncrement
})
}
if (dislikesToIncrement !== 0) {
eventsParams.push({
videoId: videoInstance.id,
type: REQUEST_VIDEO_EVENT_TYPES.DISLIKES,
count: dislikesToIncrement
})
}
return addEventsToRemoteVideo(eventsParams, t).then(() => ({ likesToIncrement, dislikesToIncrement }))
})
.then(({ likesToIncrement, dislikesToIncrement }) => {
// We do not own the video, there is no need to send a quick and dirty update to friends
// Our rate was already sent by the addEvent function
if (videoInstance.isOwned() === false) return undefined
const qadusParams = []
if (likesToIncrement !== 0) {
qadusParams.push({
videoId: videoInstance.id,
type: REQUEST_VIDEO_QADU_TYPES.LIKES
})
}
if (dislikesToIncrement !== 0) {
qadusParams.push({
videoId: videoInstance.id,
type: REQUEST_VIDEO_QADU_TYPES.DISLIKES
})
}
return quickAndDirtyUpdatesVideoToFriends(qadusParams, t)
})
})
.then(() => logger.info('User video rate for video %s of user %s updated.', videoInstance.name, userInstance.username))
.catch(err => {
// This is just a debug because we will retry the insert
logger.debug('Cannot add the user video rate.', err)
throw err
})
}
|
