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import * as express from 'express'
import { database as db } from '../../../initializers'
import {
logger,
getFormattedObjects,
retryTransactionWrapper
} from '../../../helpers'
import {
authenticate,
paginationValidator,
videoChannelsSortValidator,
videoChannelsAddValidator,
setVideoChannelsSort,
setPagination,
videoChannelsRemoveValidator,
videoChannelGetValidator,
videoChannelsUpdateValidator,
listVideoAuthorChannelsValidator
} from '../../../middlewares'
import {
createVideoChannel,
updateVideoChannelToFriends
} from '../../../lib'
import { VideoChannelInstance, AuthorInstance } from '../../../models'
import { VideoChannelCreate, VideoChannelUpdate } from '../../../../shared'
const videoChannelRouter = express.Router()
videoChannelRouter.get('/channels',
paginationValidator,
videoChannelsSortValidator,
setVideoChannelsSort,
setPagination,
listVideoChannels
)
videoChannelRouter.get('/authors/:authorId/channels',
listVideoAuthorChannelsValidator,
listVideoAuthorChannels
)
videoChannelRouter.post('/channels',
authenticate,
videoChannelsAddValidator,
addVideoChannelRetryWrapper
)
videoChannelRouter.put('/channels/:id',
authenticate,
videoChannelsUpdateValidator,
updateVideoChannelRetryWrapper
)
videoChannelRouter.delete('/channels/:id',
authenticate,
videoChannelsRemoveValidator,
removeVideoChannelRetryWrapper
)
videoChannelRouter.get('/channels/:id',
videoChannelGetValidator,
getVideoChannel
)
// ---------------------------------------------------------------------------
export {
videoChannelRouter
}
// ---------------------------------------------------------------------------
function listVideoChannels (req: express.Request, res: express.Response, next: express.NextFunction) {
db.VideoChannel.listForApi(req.query.start, req.query.count, req.query.sort)
.then(result => res.json(getFormattedObjects(result.data, result.total)))
.catch(err => next(err))
}
function listVideoAuthorChannels (req: express.Request, res: express.Response, next: express.NextFunction) {
db.VideoChannel.listByAuthor(res.locals.author.id)
.then(result => res.json(getFormattedObjects(result.data, result.total)))
.catch(err => next(err))
}
// Wrapper to video channel add that retry the function if there is a database error
// We need this because we run the transaction in SERIALIZABLE isolation that can fail
function addVideoChannelRetryWrapper (req: express.Request, res: express.Response, next: express.NextFunction) {
const options = {
arguments: [ req, res ],
errorMessage: 'Cannot insert the video video channel with many retries.'
}
retryTransactionWrapper(addVideoChannel, options)
.then(() => {
// TODO : include Location of the new video channel -> 201
res.type('json').status(204).end()
})
.catch(err => next(err))
}
function addVideoChannel (req: express.Request, res: express.Response) {
const videoChannelInfo: VideoChannelCreate = req.body
const author: AuthorInstance = res.locals.oauth.token.User.Author
return db.sequelize.transaction(t => {
return createVideoChannel(videoChannelInfo, author, t)
})
.then(videoChannelUUID => logger.info('Video channel with uuid %s created.', videoChannelUUID))
.catch((err: Error) => {
logger.debug('Cannot insert the video channel.', err)
throw err
})
}
function updateVideoChannelRetryWrapper (req: express.Request, res: express.Response, next: express.NextFunction) {
const options = {
arguments: [ req, res ],
errorMessage: 'Cannot update the video with many retries.'
}
retryTransactionWrapper(updateVideoChannel, options)
.then(() => res.type('json').status(204).end())
.catch(err => next(err))
}
function updateVideoChannel (req: express.Request, res: express.Response) {
const videoChannelInstance: VideoChannelInstance = res.locals.videoChannel
const videoChannelFieldsSave = videoChannelInstance.toJSON()
const videoChannelInfoToUpdate: VideoChannelUpdate = req.body
return db.sequelize.transaction(t => {
const options = {
transaction: t
}
if (videoChannelInfoToUpdate.name !== undefined) videoChannelInstance.set('name', videoChannelInfoToUpdate.name)
if (videoChannelInfoToUpdate.description !== undefined) videoChannelInstance.set('description', videoChannelInfoToUpdate.description)
return videoChannelInstance.save(options)
.then(() => {
const json = videoChannelInstance.toUpdateRemoteJSON()
// Now we'll update the video channel's meta data to our friends
return updateVideoChannelToFriends(json, t)
})
})
.then(() => {
logger.info('Video channel with name %s and uuid %s updated.', videoChannelInstance.name, videoChannelInstance.uuid)
})
.catch(err => {
logger.debug('Cannot update the video channel.', err)
// Force fields we want to update
// If the transaction is retried, sequelize will think the object has not changed
// So it will skip the SQL request, even if the last one was ROLLBACKed!
Object.keys(videoChannelFieldsSave).forEach(key => {
const value = videoChannelFieldsSave[key]
videoChannelInstance.set(key, value)
})
throw err
})
}
function removeVideoChannelRetryWrapper (req: express.Request, res: express.Response, next: express.NextFunction) {
const options = {
arguments: [ req, res ],
errorMessage: 'Cannot remove the video channel with many retries.'
}
retryTransactionWrapper(removeVideoChannel, options)
.then(() => res.type('json').status(204).end())
.catch(err => next(err))
}
function removeVideoChannel (req: express.Request, res: express.Response) {
const videoChannelInstance: VideoChannelInstance = res.locals.videoChannel
return db.sequelize.transaction(t => {
return videoChannelInstance.destroy({ transaction: t })
})
.then(() => {
logger.info('Video channel with name %s and uuid %s deleted.', videoChannelInstance.name, videoChannelInstance.uuid)
})
.catch(err => {
logger.error('Errors when removed the video channel.', err)
throw err
})
}
function getVideoChannel (req: express.Request, res: express.Response, next: express.NextFunction) {
db.VideoChannel.loadAndPopulateAuthorAndVideos(res.locals.videoChannel.id)
.then(videoChannelWithVideos => res.json(videoChannelWithVideos.toFormattedJSON()))
.catch(err => next(err))
}
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