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import * as express from 'express'
import { UserVideoRateUpdate } from '../../../../shared'
import { logger, retryTransactionWrapper } from '../../../helpers'
import { VIDEO_RATE_TYPES } from '../../../initializers'
import { database as db } from '../../../initializers/database'
import { asyncMiddleware, authenticate, videoRateValidator } from '../../../middlewares'
import { AccountInstance } from '../../../models/account/account-interface'
import { VideoInstance } from '../../../models/video/video-interface'
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: VideoInstance = res.locals.video
const accountInstance: AccountInstance = res.locals.oauth.token.User.Account
await db.sequelize.transaction(async t => {
const sequelizeOptions = { transaction: t }
const previousRate = await db.AccountVideoRate.load(accountInstance.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
await previousRate.save()
}
} else if (rateType !== 'none') { // There was not a previous rate, insert a new one if there is a rate
const query = {
accountId: accountInstance.id,
videoId: videoInstance.id,
type: rateType
}
await db.AccountVideoRate.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)
if (videoInstance.isOwned() === false) {
// TODO: Send a event to original pod
} else {
// TODO: Send update to followers
}
})
logger.info('Account video rate for video %s of account %s updated.', videoInstance.name, accountInstance.name)
}
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