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import * as express from 'express'
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,
asyncMiddleware
} from '../../../middlewares'
import { UserVideoRateUpdate, VideoRateType } from '../../../../shared'
const rateVideoRouter = express.Router()
rateVideoRouter.put('/:id/rate',
authenticate,
videoRateValidator,
asyncMiddleware(rateVideoRetryWrapper)
)
// ---------------------------------------------------------------------------
export {
rateVideoRouter
}
// ---------------------------------------------------------------------------
async function rateVideoRetryWrapper (req: express.Request, res: express.Response, next: express.NextFunction) {
const options = {
arguments: [ req, res ],
errorMessage: 'Cannot update the user video rate.'
}
await retryTransactionWrapper(rateVideo, options)
return res.type('json').status(204).end()
}
async 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
await db.sequelize.transaction(async t => {
const sequelizeOptions = { transaction: t }
const previousRate = await db.UserVideoRate.load(userInstance.id, videoInstance.id, t)
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
if (previousRate.type === VIDEO_RATE_TYPES.LIKE) likesToIncrement--
else if (previousRate.type === VIDEO_RATE_TYPES.DISLIKE) dislikesToIncrement--
if (rateType === 'none') { // Destroy previous rate
await previousRate.destroy()
} else { // Update previous rate
previousRate.type = rateType as VideoRateType
await 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
}
await db.UserVideoRate.create(query, sequelizeOptions)
}
const incrementQuery = {
likes: likesToIncrement,
dislikes: dislikesToIncrement
}
// Even if we do not own the video we increment the attributes
// It is useful for the user to have a feedback
await videoInstance.increment(incrementQuery, sequelizeOptions)
// Send a event to original pod
if (videoInstance.isOwned() === false) {
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
})
}
await addEventsToRemoteVideo(eventsParams, t)
} else { // We own the video, we need to send a quick and dirty update to friends to notify the counts changed
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
})
}
await quickAndDirtyUpdatesVideoToFriends(qadusParams, t)
}
})
logger.info('User video rate for video %s of user %s updated.', videoInstance.name, userInstance.username)
}
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