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 { sendVideoRateChangeToFollowers, sendVideoRateChangeToOrigin } from '../../../lib/activitypub/videos' 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, asyncMiddleware(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({ transaction: t }) } else { // Update previous rate previousRate.type = rateType await previousRate.save({ transaction: t }) } } 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()) { await sendVideoRateChangeToFollowers(accountInstance, videoInstance, likesToIncrement, dislikesToIncrement, t) } else { await sendVideoRateChangeToOrigin(accountInstance, videoInstance, likesToIncrement, dislikesToIncrement, t) } }) logger.info('Account video rate for video %s of account %s updated.', videoInstance.name, accountInstance.name) }