1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
|
import { Transaction } from 'sequelize/types'
import { isTestOrDevInstance } from '@server/helpers/core-utils'
import { GeoIP } from '@server/helpers/geo-ip'
import { logger, loggerTagsFactory } from '@server/helpers/logger'
import { MAX_LOCAL_VIEWER_WATCH_SECTIONS, VIEW_LIFETIME } from '@server/initializers/constants'
import { sequelizeTypescript } from '@server/initializers/database'
import { sendCreateWatchAction } from '@server/lib/activitypub/send'
import { getLocalVideoViewerActivityPubUrl } from '@server/lib/activitypub/url'
import { Redis } from '@server/lib/redis'
import { VideoModel } from '@server/models/video/video'
import { LocalVideoViewerModel } from '@server/models/view/local-video-viewer'
import { LocalVideoViewerWatchSectionModel } from '@server/models/view/local-video-viewer-watch-section'
import { MVideo, MVideoImmutable } from '@server/types/models'
import { VideoViewEvent } from '@shared/models'
const lTags = loggerTagsFactory('views')
type LocalViewerStats = {
firstUpdated: number // Date.getTime()
lastUpdated: number // Date.getTime()
watchSections: {
start: number
end: number
}[]
watchTime: number
country: string
videoId: number
}
export class VideoViewerStats {
private processingViewersStats = false
constructor () {
setInterval(() => this.processViewerStats(), VIEW_LIFETIME.VIEWER_STATS)
}
// ---------------------------------------------------------------------------
async addLocalViewer (options: {
video: MVideoImmutable
currentTime: number
ip: string
viewEvent?: VideoViewEvent
}) {
const { video, ip, viewEvent, currentTime } = options
logger.debug('Adding local viewer to video stats %s.', video.uuid, { currentTime, viewEvent, ...lTags(video.uuid) })
return this.updateLocalViewerStats({ video, viewEvent, currentTime, ip })
}
// ---------------------------------------------------------------------------
async getWatchTime (videoId: number, ip: string) {
const stats: LocalViewerStats = await Redis.Instance.getLocalVideoViewer({ ip, videoId })
return stats?.watchTime || 0
}
// ---------------------------------------------------------------------------
private async updateLocalViewerStats (options: {
video: MVideoImmutable
ip: string
currentTime: number
viewEvent?: VideoViewEvent
}) {
const { video, ip, viewEvent, currentTime } = options
const nowMs = new Date().getTime()
let stats: LocalViewerStats = await Redis.Instance.getLocalVideoViewer({ ip, videoId: video.id })
if (stats && stats.watchSections.length >= MAX_LOCAL_VIEWER_WATCH_SECTIONS) {
logger.warn('Too much watch section to store for a viewer, skipping this one', { currentTime, viewEvent, ...lTags(video.uuid) })
return
}
if (!stats) {
const country = await GeoIP.Instance.safeCountryISOLookup(ip)
stats = {
firstUpdated: nowMs,
lastUpdated: nowMs,
watchSections: [],
watchTime: 0,
country,
videoId: video.id
}
}
stats.lastUpdated = nowMs
if (viewEvent === 'seek' || stats.watchSections.length === 0) {
stats.watchSections.push({
start: currentTime,
end: currentTime
})
} else {
const lastSection = stats.watchSections[stats.watchSections.length - 1]
lastSection.end = currentTime
}
stats.watchTime = this.buildWatchTimeFromSections(stats.watchSections)
logger.debug('Set local video viewer stats for video %s.', video.uuid, { stats, ...lTags(video.uuid) })
await Redis.Instance.setLocalVideoViewer(ip, video.id, stats)
}
async processViewerStats () {
if (this.processingViewersStats) return
this.processingViewersStats = true
if (!isTestOrDevInstance()) logger.info('Processing viewer statistics.', lTags())
const now = new Date().getTime()
try {
const allKeys = await Redis.Instance.listLocalVideoViewerKeys()
for (const key of allKeys) {
const stats: LocalViewerStats = await Redis.Instance.getLocalVideoViewer({ key })
// Process expired stats
if (stats.lastUpdated > now - VIEW_LIFETIME.VIEWER_STATS) {
continue
}
try {
await sequelizeTypescript.transaction(async t => {
const video = await VideoModel.load(stats.videoId, t)
if (!video) return
const statsModel = await this.saveViewerStats(video, stats, t)
if (video.remote) {
await sendCreateWatchAction(statsModel, t)
}
})
await Redis.Instance.deleteLocalVideoViewersKeys(key)
} catch (err) {
logger.error('Cannot process viewer stats for Redis key %s.', key, { err, ...lTags() })
}
}
} catch (err) {
logger.error('Error in video save viewers stats scheduler.', { err, ...lTags() })
}
this.processingViewersStats = false
}
private async saveViewerStats (video: MVideo, stats: LocalViewerStats, transaction: Transaction) {
const statsModel = new LocalVideoViewerModel({
startDate: new Date(stats.firstUpdated),
endDate: new Date(stats.lastUpdated),
watchTime: stats.watchTime,
country: stats.country,
videoId: video.id
})
statsModel.url = getLocalVideoViewerActivityPubUrl(statsModel)
statsModel.Video = video as VideoModel
await statsModel.save({ transaction })
statsModel.WatchSections = await LocalVideoViewerWatchSectionModel.bulkCreateSections({
localVideoViewerId: statsModel.id,
watchSections: stats.watchSections,
transaction
})
return statsModel
}
private buildWatchTimeFromSections (sections: { start: number, end: number }[]) {
return sections.reduce((p, current) => p + (current.end - current.start), 0)
}
}
|
