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Use async waterfall in videos controller for better readability

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Chocobozzz 2016-05-13 21:14:14 +02:00
parent 57a56079fe
commit 807df9e668
1 changed files with 120 additions and 65 deletions
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185
server/controllers/api/v1/videos.js
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@ -1,5 +1,6 @@
'use strict'
const async = require('async')
const config = require('config')
const express = require('express')
const fs = require('fs')
@ -81,63 +82,92 @@ function addVideo (req, res, next) {
const videoFile = req.files.videofile[0]
const videoInfos = req.body
videos.seed(videoFile.path, function (err, torrent) {
if (err) {
logger.error('Cannot seed this video.')
return next(err)
}
async.waterfall([
function (callback) {
videos.seed(videoFile.path, callback)
},
videos.getVideoDuration(videoFile.path, function (err, duration) {
if (err) {
// TODO: unseed the video
logger.error('Cannot retrieve metadata of the file.')
return next(err)
}
function seed (torrent, callback) {
videos.getVideoDuration(videoFile.path, function (err, duration) {
if (err) {
// TODO: unseed the video
logger.error('Cannot retrieve metadata of the file.')
return next(err)
}
callback(null, torrent, duration)
})
},
function createThumbnail (torrent, duration, callback) {
videos.createVideoThumbnail(videoFile.path, function (err, thumbnailName) {
if (err) {
// TODO: unseed the video
logger.error('Cannot make a thumbnail of the video file.')
return next(err)
return callback(err)
}
const videoData = {
name: videoInfos.name,
namePath: videoFile.filename,
description: videoInfos.description,
magnetUri: torrent.magnetURI,
author: res.locals.oauth.token.user.username,
duration: duration,
thumbnail: thumbnailName
}
Videos.add(videoData, function (err, insertedVideo) {
if (err) {
// TODO unseed the video
logger.error('Cannot insert this video in the database.')
return next(err)
}
videoData.createdDate = insertedVideo.createdDate
fs.readFile(thumbnailsDir + thumbnailName, function (err, data) {
if (err) {
// TODO: remove video?
logger.error('Cannot read the thumbnail of the video')
return next(err)
}
// Set the image in base64
videoData.thumbnailBase64 = new Buffer(data).toString('base64')
// Now we'll add the video's meta data to our friends
friends.addVideoToFriends(videoData)
// TODO : include Location of the new video -> 201
res.type('json').status(204).end()
})
})
callback(null, torrent, duration, thumbnailName)
})
})
},
function insertIntoDB (torrent, duration, thumbnailName, callback) {
const videoData = {
name: videoInfos.name,
namePath: videoFile.filename,
description: videoInfos.description,
magnetUri: torrent.magnetURI,
author: res.locals.oauth.token.user.username,
duration: duration,
thumbnail: thumbnailName
}
Videos.add(videoData, function (err, insertedVideo) {
if (err) {
// TODO unseed the video
// TODO remove thumbnail
logger.error('Cannot insert this video in the database.')
return callback(err)
}
return callback(null, torrent, duration, thumbnailName, videoData, insertedVideo)
})
},
function getThumbnailBase64 (torrent, duration, thumbnailName, videoData, insertedVideo, callback) {
videoData.createdDate = insertedVideo.createdDate
fs.readFile(thumbnailsDir + thumbnailName, function (err, thumbnailData) {
if (err) {
// TODO unseed the video
// TODO remove thumbnail
// TODO: remove video
logger.error('Cannot read the thumbnail of the video')
return callback(err)
}
return callback(null, videoData, thumbnailData)
})
},
function sendToFriends (videoData, thumbnailData, callback) {
// Set the image in base64
videoData.thumbnailBase64 = new Buffer(thumbnailData).toString('base64')
// Now we'll add the video's meta data to our friends
friends.addVideoToFriends(videoData)
return callback(null)
}
], function (err) {
if (err) {
logger.error('Cannot insert the video.')
return next(err)
}
// TODO : include Location of the new video -> 201
return res.type('json').status(204).end()
})
}
@ -164,26 +194,51 @@ function listVideos (req, res, next) {
function removeVideo (req, res, next) {
const videoId = req.params.id
Videos.get(videoId, function (err, video) {
if (err) return next(err)
removeTorrent(video.magnetUri, function () {
Videos.removeOwned(req.params.id, function (err) {
if (err) return next(err)
async.waterfall([
function getVideo (callback) {
Videos.get(videoId, callback)
},
videos.removeVideosDataFromDisk([ video ], function (err) {
if (err) logger.error('Cannot remove video data from disk.', { video: video })
const params = {
name: video.name,
magnetUri: video.magnetUri
}
friends.removeVideoToFriends(params)
res.type('json').status(204).end()
})
function removeVideoTorrent (video, callback) {
removeTorrent(video.magnetUri, function () {
return callback(null, video)
})
})
},
function removeFromDB (video, callback) {
Videos.removeOwned(req.params.id, function (err) {
if (err) return callback(err)
return callback(null, video)
})
},
function removeVideoData (video, callback) {
videos.removeVideosDataFromDisk([ video ], function (err) {
if (err) logger.error('Cannot remove video data from disk.', { video: video })
return callback(null, video)
})
},
function sendInformationToFriends (video, callback) {
const params = {
name: video.name,
magnetUri: video.magnetUri
}
friends.removeVideoToFriends(params)
return callback(null)
}
], function (err) {
if (err) {
logger.error('Errors when removed the video.', { error: err })
return next(err)
}
return res.type('json').status(204).end()
})
}