21 files changed, 55 insertions, 57 deletions

diff --git a/client/src/app/+accounts/accounts.component.ts b/client/src/app/+accounts/accounts.component.ts
index e8339b78b..d9786fb5c 100644
--- a/client/src/app/+accounts/accounts.component.ts
+++ b/client/src/app/+accounts/accounts.component.ts
@@ -7,7 +7,6 @@ import { catchError, distinctUntilChanged, map, switchMap, tap } from 'rxjs/oper
 import { Subscription } from 'rxjs'
 import { AuthService, Notifier, RedirectService } from '@app/core'
 import { User, UserRight } from '../../../../shared'
-import { I18n } from '@ngx-translate/i18n-polyfill'
 
 @Component({
   templateUrl: './accounts.component.html',
diff --git a/client/src/app/+video-channels/video-channel-playlists/video-channel-playlists.component.html b/client/src/app/+video-channels/video-channel-playlists/video-channel-playlists.component.html
index 0d9fba375..befc7143c 100644
--- a/client/src/app/+video-channels/video-channel-playlists/video-channel-playlists.component.html
+++ b/client/src/app/+video-channels/video-channel-playlists/video-channel-playlists.component.html
@@ -1,5 +1,5 @@
 <div i18n class="title-page title-page-single">
-  Created {{pagination.totalItems}} playlists
+  Created {{ pagination.totalItems }} playlists
 </div>
 
 <div i18n class="no-results" *ngIf="pagination.totalItems === 0">This channel does not have playlists.</div>
diff --git a/client/src/app/shared/forms/form-reactive.ts b/client/src/app/shared/forms/form-reactive.ts
index b9873af2c..0d40b6f4a 100644
--- a/client/src/app/shared/forms/form-reactive.ts
+++ b/client/src/app/shared/forms/form-reactive.ts
@@ -59,7 +59,7 @@ export abstract class FormReactive {
       const isDirty = control.dirty || forceCheck === true
       if (control && isDirty && !control.valid) {
         const messages = validationMessages[ field ]
-        for (const key in control.errors) {
+        for (const key of Object.keys(control.errors)) {
           formErrors[ field ] += messages[ key ] + ' '
         }
       }
diff --git a/client/src/app/shared/misc/utils.ts b/client/src/app/shared/misc/utils.ts
index 8a1d342c9..85fc1c3a0 100644
--- a/client/src/app/shared/misc/utils.ts
+++ b/client/src/app/shared/misc/utils.ts
@@ -78,10 +78,10 @@ function objectToUrlEncoded (obj: any) {
 
 // Thanks: https://gist.github.com/ghinda/8442a57f22099bdb2e34
 function objectToFormData (obj: any, form?: FormData, namespace?: string) {
-  let fd = form || new FormData()
+  const fd = form || new FormData()
   let formKey
 
-  for (let key of Object.keys(obj)) {
+  for (const key of Object.keys(obj)) {
     if (namespace) formKey = `${namespace}[${key}]`
     else formKey = key
 
diff --git a/client/src/app/shared/renderer/markdown.service.ts b/client/src/app/shared/renderer/markdown.service.ts
index 69dc60aaf..9a9066351 100644
--- a/client/src/app/shared/renderer/markdown.service.ts
+++ b/client/src/app/shared/renderer/markdown.service.ts
@@ -45,7 +45,7 @@ export class MarkdownService {
 
     const markdownIt = new MarkdownItClass('zero', { linkify: true, breaks: true })
 
-    for (let rule of rules) {
+    for (const rule of rules) {
       markdownIt.enable(rule)
     }
 
diff --git a/client/src/app/shared/video-playlist/video-playlist-element-miniature.component.html b/client/src/app/shared/video-playlist/video-playlist-element-miniature.component.html
index 4764fc0e1..ab5a78928 100644
--- a/client/src/app/shared/video-playlist/video-playlist-element-miniature.component.html
+++ b/client/src/app/shared/video-playlist/video-playlist-element-miniature.component.html
@@ -19,7 +19,7 @@
       <a *ngIf="accountLink" tabindex="-1" class="video-info-account" [routerLink]="[ '/accounts', video.byAccount ]">{{ video.byAccount }}</a>
       <span *ngIf="!accountLink" tabindex="-1" class="video-info-account">{{ video.byAccount }}</span>
 
-      <span tabindex="-1" class="video-info-timestamp">{{ formatTimestamp(video)}}</span>
+      <span tabindex="-1" class="video-info-timestamp">{{ formatTimestamp(video) }}</span>
     </div>
   </a>
 
@@ -66,7 +66,7 @@
       </div>
 
       <span class="dropdown-item" (click)="removeFromPlaylist(video)">
-            <my-global-icon iconName="delete"></my-global-icon> <ng-container i18n>Delete from {{playlist?.displayName}}</ng-container>
+            <my-global-icon iconName="delete"></my-global-icon> <ng-container i18n>Delete from {{ playlist?.displayName }}</ng-container>
           </span>
     </div>
   </div>
diff --git a/client/src/app/shared/video-playlist/video-playlist-miniature.component.html b/client/src/app/shared/video-playlist/video-playlist-miniature.component.html
index c01c73012..faf906c59 100644
--- a/client/src/app/shared/video-playlist/video-playlist-miniature.component.html
+++ b/client/src/app/shared/video-playlist/video-playlist-miniature.component.html
@@ -6,7 +6,7 @@
     <img alt="" [attr.aria-labelledby]="playlist.displayName" [attr.src]="playlist.thumbnailUrl" />
 
     <div class="miniature-playlist-info-overlay">
-      <ng-container i18n>{playlist.videosLength, plural, =0 {No videos} =1 {1 video} other {{{playlist.videosLength}} videos}}</ng-container>
+      <ng-container i18n>{playlist.videosLength, plural, =0 {No videos} =1 {1 video} other {{{ playlist.videosLength }} videos}}</ng-container>
     </div>
 
     <div class="play-overlay">
diff --git a/client/src/app/videos/+video-watch/video-watch.component.html b/client/src/app/videos/+video-watch/video-watch.component.html
index 91f77cbf3..ad1d04b70 100644
--- a/client/src/app/videos/+video-watch/video-watch.component.html
+++ b/client/src/app/videos/+video-watch/video-watch.component.html
@@ -22,7 +22,7 @@
         <div class="playlist-by-index">
           <div class="playlist-by">{{ playlist.ownerBy }}</div>
           <div class="playlist-index">
-            <span>{{currentPlaylistPosition}}</span><span>{{playlistPagination.totalItems}}</span>
+            <span>{{ currentPlaylistPosition }}</span><span>{{ playlistPagination.totalItems }}</span>
           </div>
         </div>
       </div>
diff --git a/client/src/assets/player/p2p-media-loader/segment-url-builder.ts b/client/src/assets/player/p2p-media-loader/segment-url-builder.ts
index 32e7ce4f2..fb990a19d 100644
--- a/client/src/assets/player/p2p-media-loader/segment-url-builder.ts
+++ b/client/src/assets/player/p2p-media-loader/segment-url-builder.ts
@@ -8,8 +8,8 @@ function segmentUrlBuilderFactory (baseUrls: string[]) {
 
     if (i === max - 1) return segment.url
 
-    let newBaseUrl = baseUrls[i]
-    let middlePart = newBaseUrl.endsWith('/') ? '' : '/'
+    const newBaseUrl = baseUrls[i]
+    const middlePart = newBaseUrl.endsWith('/') ? '' : '/'
 
     return newBaseUrl + middlePart + basename(segment.url)
   }
diff --git a/client/src/assets/player/utils.ts b/client/src/assets/player/utils.ts
index 54f131310..0966027ac 100644
--- a/client/src/assets/player/utils.ts
+++ b/client/src/assets/player/utils.ts
@@ -61,12 +61,12 @@ function secondsToTime (seconds: number, full = false, symbol?: string) {
   const minuteSymbol = (symbol || 'm')
   const secondsSymbol = full ? '' : 's'
 
-  let hours = Math.floor(seconds / 3600)
+  const hours = Math.floor(seconds / 3600)
   if (hours >= 1) time = hours + hourSymbol
   else if (full) time = '0' + hourSymbol
 
   seconds %= 3600
-  let minutes = Math.floor(seconds / 60)
+  const minutes = Math.floor(seconds / 60)
   if (minutes >= 1 && minutes < 10 && full) time += '0' + minutes + minuteSymbol
   else if (minutes >= 1) time += minutes + minuteSymbol
   else if (full) time += '00' + minuteSymbol
diff --git a/client/src/assets/player/videojs-components/resolution-menu-button.ts b/client/src/assets/player/videojs-components/resolution-menu-button.ts
index abcc16411..cff44de72 100644
--- a/client/src/assets/player/videojs-components/resolution-menu-button.ts
+++ b/client/src/assets/player/videojs-components/resolution-menu-button.ts
@@ -49,7 +49,7 @@ class ResolutionMenuButton extends MenuButton {
 
   private addClickListener (component: any) {
     component.on('click', () => {
-      let children = this.menu.children()
+      const children = this.menu.children()
 
       for (const child of children) {
         if (component !== child) {
diff --git a/client/src/assets/player/videojs-components/settings-menu-button.ts b/client/src/assets/player/videojs-components/settings-menu-button.ts
index 14cb8ba43..5e09032b4 100644
--- a/client/src/assets/player/videojs-components/settings-menu-button.ts
+++ b/client/src/assets/player/videojs-components/settings-menu-button.ts
@@ -53,7 +53,7 @@ class SettingsButton extends Button {
 
   onDisposeSettingsItem (event: any, name: string) {
     if (name === undefined) {
-      let children = this.menu.children()
+      const children = this.menu.children()
 
       while (children.length > 0) {
         children[0].dispose()
@@ -62,7 +62,7 @@ class SettingsButton extends Button {
 
       this.addClass('vjs-hidden')
     } else {
-      let item = this.menu.getChild(name)
+      const item = this.menu.getChild(name)
 
       if (item) {
         item.dispose()
@@ -148,8 +148,8 @@ class SettingsButton extends Button {
       return
     }
 
-    let offset = this.options_.setup.maxHeightOffset
-    let maxHeight = this.playerComponent.el_.offsetHeight - offset
+    const offset = this.options_.setup.maxHeightOffset
+    const maxHeight = this.playerComponent.el_.offsetHeight - offset
 
     if (height > maxHeight) {
       height = maxHeight
@@ -166,7 +166,7 @@ class SettingsButton extends Button {
   buildMenu () {
     this.menu = new Menu(this.player())
     this.menu.addClass('vjs-main-menu')
-    let entries = this.options_.entries
+    const entries = this.options_.entries
 
     if (entries.length === 0) {
       this.addClass('vjs-hidden')
@@ -174,7 +174,7 @@ class SettingsButton extends Button {
       return
     }
 
-    for (let entry of entries) {
+    for (const entry of entries) {
       this.addMenuItem(entry, this.options_)
     }
 
@@ -191,7 +191,7 @@ class SettingsButton extends Button {
     }
 
     options.name = toTitleCase(entry)
-    let settingsMenuItem = new SettingsMenuItem(this.player(), options, entry, this as any)
+    const settingsMenuItem = new SettingsMenuItem(this.player(), options, entry, this as any)
 
     this.menu.addChild(settingsMenuItem)
 
@@ -204,7 +204,7 @@ class SettingsButton extends Button {
   }
 
   resetChildren () {
-    for (let menuChild of this.menu.children()) {
+    for (const menuChild of this.menu.children()) {
       menuChild.reset()
     }
   }
@@ -213,7 +213,7 @@ class SettingsButton extends Button {
    * Hide all the sub menus
    */
   hideChildren () {
-    for (let menuChild of this.menu.children()) {
+    for (const menuChild of this.menu.children()) {
       menuChild.hideSubMenu()
     }
   }
diff --git a/client/src/assets/player/videojs-components/settings-menu-item.ts b/client/src/assets/player/videojs-components/settings-menu-item.ts
index f14959f9c..78879a2ec 100644
--- a/client/src/assets/player/videojs-components/settings-menu-item.ts
+++ b/client/src/assets/player/videojs-components/settings-menu-item.ts
@@ -167,7 +167,7 @@ class SettingsMenuItem extends MenuItem {
    * @method PrefixedEvent
    */
   PrefixedEvent (element: any, type: any, callback: any, action = 'addEvent') {
-    let prefix = ['webkit', 'moz', 'MS', 'o', '']
+    const prefix = ['webkit', 'moz', 'MS', 'o', '']
 
     for (let p = 0; p < prefix.length; p++) {
       if (!prefix[p]) {
@@ -249,7 +249,7 @@ class SettingsMenuItem extends MenuItem {
 
   update (event?: any) {
     let target: HTMLElement = null
-    let subMenu = this.subMenu.name()
+    const subMenu = this.subMenu.name()
 
     if (event && event.type === 'tap') {
       target = event.target
@@ -264,7 +264,7 @@ class SettingsMenuItem extends MenuItem {
       setTimeout(() => this.settingsSubMenuValueEl_.innerHTML = this.subMenu.labelEl_.innerHTML, 250)
     } else {
       // Loop trough the submenu items to find the selected child
-      for (let subMenuItem of this.subMenu.menu.children_) {
+      for (const subMenuItem of this.subMenu.menu.children_) {
         if (!(subMenuItem instanceof component)) {
           continue
         }
@@ -287,7 +287,7 @@ class SettingsMenuItem extends MenuItem {
   }
 
   bindClickEvents () {
-    for (let item of this.subMenu.menu.children()) {
+    for (const item of this.subMenu.menu.children()) {
       if (!(item instanceof component)) {
         continue
       }
@@ -307,7 +307,7 @@ class SettingsMenuItem extends MenuItem {
   }
 
   setMargin () {
-    let [width] = this.size
+    const [ width ] = this.size
 
     this.settingsSubMenuEl_.style.marginRight = `-${width}px`
   }
diff --git a/client/src/assets/player/webtorrent/peertube-chunk-store.ts b/client/src/assets/player/webtorrent/peertube-chunk-store.ts
index 54cc0ea64..66762bef8 100644
--- a/client/src/assets/player/webtorrent/peertube-chunk-store.ts
+++ b/client/src/assets/player/webtorrent/peertube-chunk-store.ts
@@ -131,7 +131,7 @@ export class PeertubeChunkStore extends EventEmitter {
     // Chunk in store
     this.db.transaction('r', this.db.chunks, async () => {
       const result = await this.db.chunks.get({ id: index })
-      if (result === undefined) return cb(null, new Buffer(0))
+      if (result === undefined) return cb(null, Buffer.alloc(0))
 
       const buf = result.buf
       if (!opts) return this.nextTick(cb, null, buf)
@@ -162,13 +162,13 @@ export class PeertubeChunkStore extends EventEmitter {
       }
 
       if (this.db) {
-        await this.db.close()
+        this.db.close()
 
         await this.dropDatabase(this.databaseName)
       }
 
       if (this.expirationDB) {
-        await this.expirationDB.close()
+        this.expirationDB.close()
         this.expirationDB = null
       }
 
diff --git a/client/src/assets/player/webtorrent/video-renderer.ts b/client/src/assets/player/webtorrent/video-renderer.ts
index a3415937b..4dce87112 100644
--- a/client/src/assets/player/webtorrent/video-renderer.ts
+++ b/client/src/assets/player/webtorrent/video-renderer.ts
@@ -29,7 +29,7 @@ function renderVideo (
 
 function renderMedia (file: any, elem: HTMLVideoElement, opts: RenderMediaOptions, callback: (err: Error, renderer?: any) => void) {
   const extension = extname(file.name).toLowerCase()
-  let preparedElem: any = undefined
+  let preparedElem: any
   let currentTime = 0
   let renderer: any
 
diff --git a/client/src/assets/player/webtorrent/webtorrent-plugin.ts b/client/src/assets/player/webtorrent/webtorrent-plugin.ts
index c7182acc9..eee3d4db9 100644
--- a/client/src/assets/player/webtorrent/webtorrent-plugin.ts
+++ b/client/src/assets/player/webtorrent/webtorrent-plugin.ts
@@ -347,7 +347,7 @@ class WebTorrentPlugin extends Plugin {
     if (!averageDownloadSpeed) averageDownloadSpeed = this.getAndSaveActualDownloadSpeed()
 
     // Limit resolution according to player height
-    const playerHeight = this.playerElement.offsetHeight as number
+    const playerHeight = this.playerElement.offsetHeight
 
     // We take the first resolution just above the player height
     // Example: player height is 530px, we want the 720p file instead of 480p
diff --git a/client/src/polyfills.ts b/client/src/polyfills.ts
index 368908432..b68c07fdb 100644
--- a/client/src/polyfills.ts
+++ b/client/src/polyfills.ts
@@ -76,6 +76,7 @@ import 'core-js/es7/object'
 /***************************************************************************************************
  * Zone JS is required by default for Angular itself.
  */
+// tslint:disable
 import 'zone.js/dist/zone'  // Included with Angular CLI.
 
 /***************************************************************************************************
diff --git a/client/src/standalone/player/definitions.ts b/client/src/standalone/player/definitions.ts
index 7f9ef9b6f..afd10541b 100644
--- a/client/src/standalone/player/definitions.ts
+++ b/client/src/standalone/player/definitions.ts
@@ -1,6 +1,4 @@
-export interface EventHandler<T> {
-  (ev: T): void
-}
+export type EventHandler<T> = (ev: T) => void
 
 export type PlayerEventType =
   'pause' | 'play' |
diff --git a/client/src/standalone/player/events.ts b/client/src/standalone/player/events.ts
index f1639ef19..28a13c727 100644
--- a/client/src/standalone/player/events.ts
+++ b/client/src/standalone/player/events.ts
@@ -13,13 +13,13 @@ export class EventRegistrar {
   private eventRegistrations: PlayerEventRegistrationMap = {}
 
   public bindToChannel (channel: Channel.MessagingChannel) {
-    for (let name of Object.keys(this.eventRegistrations)) {
+    for (const name of Object.keys(this.eventRegistrations)) {
       channel.bind(name, (txn, params) => this.fire(name, params))
     }
   }
 
   public registerTypes (names: string[]) {
-    for (let name of names) {
+    for (const name of names) {
       this.eventRegistrations[ name ] = { registrations: [] }
     }
   }
diff --git a/client/src/standalone/videos/embed.ts b/client/src/standalone/videos/embed.ts
index b55b4bace..626d55a7c 100644
--- a/client/src/standalone/videos/embed.ts
+++ b/client/src/standalone/videos/embed.ts
@@ -40,7 +40,7 @@ class PeerTubeEmbedApi {
   }
 
   private constructChannel () {
-    let channel = Channel.build({ window: window.parent, origin: '*', scope: this.embed.scope })
+    const channel = Channel.build({ window: window.parent, origin: '*', scope: this.embed.scope })
 
     channel.bind('play', (txn, params) => this.embed.player.play())
     channel.bind('pause', (txn, params) => this.embed.player.pause())
@@ -82,8 +82,8 @@ class PeerTubeEmbedApi {
     let currentState: 'playing' | 'paused' | 'unstarted' = 'unstarted'
 
     setInterval(() => {
-      let position = this.element.currentTime
-      let volume = this.element.volume
+      const position = this.element.currentTime
+      const volume = this.element.volume
 
       this.channel.notify({
         method: 'playbackStatusUpdate',
@@ -114,8 +114,8 @@ class PeerTubeEmbedApi {
   }
 
   private loadWebTorrentResolutions () {
-    let resolutions = []
-    let currentResolutionId = this.embed.player.webtorrent().getCurrentResolutionId()
+    const resolutions = []
+    const currentResolutionId = this.embed.player.webtorrent().getCurrentResolutionId()
 
     for (const videoFile of this.embed.player.webtorrent().videoFiles) {
       let label = videoFile.resolution.label
@@ -235,7 +235,7 @@ class PeerTubeEmbed {
 
   private loadParams () {
     try {
-      let params = new URL(window.location.toString()).searchParams
+      const params = new URL(window.location.toString()).searchParams
 
       this.autoplay = this.getParamToggle(params, 'autoplay')
       this.controls = this.getParamToggle(params, 'controls')
diff --git a/client/src/standalone/videos/test-embed.ts b/client/src/standalone/videos/test-embed.ts
index 30a298573..8e83d92a9 100644
--- a/client/src/standalone/videos/test-embed.ts
+++ b/client/src/standalone/videos/test-embed.ts
@@ -7,13 +7,13 @@ window.addEventListener('load', async () => {
   const lastPart = urlParts[ urlParts.length - 1 ]
   const videoId = lastPart.indexOf('?') === -1 ? lastPart : lastPart.split('?')[ 0 ]
 
-  let iframe = document.createElement('iframe')
+  const iframe = document.createElement('iframe')
   iframe.src = `/videos/embed/${videoId}?autoplay=1&controls=0&api=1`
-  let mainElement = document.querySelector('#host')
+  const mainElement = document.querySelector('#host')
   mainElement.appendChild(iframe)
 
   console.log(`Document finished loading.`)
-  let player = new PeerTubePlayer(document.querySelector('iframe'))
+  const player = new PeerTubePlayer(document.querySelector('iframe'))
 
   window[ 'player' ] = player
 
@@ -21,7 +21,7 @@ window.addEventListener('load', async () => {
   await player.ready
   console.log(`Player is ready.`)
 
-  let monitoredEvents = [
+  const monitoredEvents = [
     'pause',
     'play',
     'playbackStatusUpdate',
@@ -36,18 +36,18 @@ window.addEventListener('load', async () => {
   let playbackRates: number[] = []
   let currentRate = await player.getPlaybackRate()
 
-  let updateRates = async () => {
-    let rateListEl = document.querySelector('#rate-list')
+  const updateRates = async () => {
+    const rateListEl = document.querySelector('#rate-list')
     rateListEl.innerHTML = ''
 
     playbackRates.forEach(rate => {
       if (currentRate === rate) {
-        let itemEl = document.createElement('strong')
+        const itemEl = document.createElement('strong')
         itemEl.innerText = `${rate} (active)`
         itemEl.style.display = 'block'
         rateListEl.appendChild(itemEl)
       } else {
-        let itemEl = document.createElement('a')
+        const itemEl = document.createElement('a')
         itemEl.href = 'javascript:;'
         itemEl.innerText = rate.toString()
         itemEl.addEventListener('click', () => {
@@ -66,18 +66,18 @@ window.addEventListener('load', async () => {
     updateRates()
   })
 
-  let updateResolutions = ((resolutions: PeerTubeResolution[]) => {
-    let resolutionListEl = document.querySelector('#resolution-list')
+  const updateResolutions = ((resolutions: PeerTubeResolution[]) => {
+    const resolutionListEl = document.querySelector('#resolution-list')
     resolutionListEl.innerHTML = ''
 
     resolutions.forEach(resolution => {
       if (resolution.active) {
-        let itemEl = document.createElement('strong')
+        const itemEl = document.createElement('strong')
         itemEl.innerText = `${resolution.label} (active)`
         itemEl.style.display = 'block'
         resolutionListEl.appendChild(itemEl)
       } else {
-        let itemEl = document.createElement('a')
+        const itemEl = document.createElement('a')
         itemEl.href = 'javascript:;'
         itemEl.innerText = resolution.label
         itemEl.addEventListener('click', () => {