13 files changed, 175 insertions, 179 deletions

diff --git a/server/models/video/schedule-video-update.ts b/server/models/video/schedule-video-update.ts
index abddc1111..b9e9ed9a0 100644
--- a/server/models/video/schedule-video-update.ts
+++ b/server/models/video/schedule-video-update.ts
@@ -1,7 +1,7 @@
-import { AllowNull, BelongsTo, Column, CreatedAt, Default, ForeignKey, Model, Sequelize, Table, UpdatedAt } from 'sequelize-typescript'
+import { AllowNull, BelongsTo, Column, CreatedAt, Default, ForeignKey, Model, Table, UpdatedAt } from 'sequelize-typescript'
 import { ScopeNames as VideoScopeNames, VideoModel } from './video'
 import { VideoPrivacy } from '../../../shared/models/videos'
-import { Transaction } from 'sequelize'
+import { Op, Transaction } from 'sequelize'
 
 @Table({
   tableName: 'scheduleVideoUpdate',
@@ -51,7 +51,7 @@ export class ScheduleVideoUpdateModel extends Model<ScheduleVideoUpdateModel> {
       attributes: [ 'id' ],
       where: {
         updateAt: {
-          [Sequelize.Op.lte]: new Date()
+          [Op.lte]: new Date()
         }
       }
     }
@@ -64,7 +64,7 @@ export class ScheduleVideoUpdateModel extends Model<ScheduleVideoUpdateModel> {
     const query = {
       where: {
         updateAt: {
-          [Sequelize.Op.lte]: new Date()
+          [Op.lte]: new Date()
         }
       },
       include: [
diff --git a/server/models/video/tag.ts b/server/models/video/tag.ts
index b39621eaf..048b47613 100644
--- a/server/models/video/tag.ts
+++ b/server/models/video/tag.ts
@@ -1,5 +1,5 @@
 import * as Bluebird from 'bluebird'
-import * as Sequelize from 'sequelize'
+import { QueryTypes, Transaction } from 'sequelize'
 import { AllowNull, BelongsToMany, Column, CreatedAt, Is, Model, Table, UpdatedAt } from 'sequelize-typescript'
 import { isVideoTagValid } from '../../helpers/custom-validators/videos'
 import { throwIfNotValid } from '../utils'
@@ -37,7 +37,7 @@ export class TagModel extends Model<TagModel> {
   })
   Videos: VideoModel[]
 
-  static findOrCreateTags (tags: string[], transaction: Sequelize.Transaction) {
+  static findOrCreateTags (tags: string[], transaction: Transaction) {
     if (tags === null) return []
 
     const tasks: Bluebird<TagModel>[] = []
@@ -72,10 +72,10 @@ export class TagModel extends Model<TagModel> {
 
     const options = {
       bind: { threshold, count, videoPrivacy: VideoPrivacy.PUBLIC, videoState: VideoState.PUBLISHED },
-      type: Sequelize.QueryTypes.SELECT
+      type: QueryTypes.SELECT as QueryTypes.SELECT
     }
 
-    return TagModel.sequelize.query(query, options)
+    return TagModel.sequelize.query<{ name }>(query, options)
                     .then(data => data.map(d => d.name))
   }
 }
diff --git a/server/models/video/video-abuse.ts b/server/models/video/video-abuse.ts
index eacd651cc..1ac7919b3 100644
--- a/server/models/video/video-abuse.ts
+++ b/server/models/video/video-abuse.ts
@@ -39,7 +39,7 @@ export class VideoAbuseModel extends Model<VideoAbuseModel> {
 
   @AllowNull(true)
   @Default(null)
-  @Is('VideoAbuseModerationComment', value => throwIfNotValid(value, isVideoAbuseModerationCommentValid, 'moderationComment'))
+  @Is('VideoAbuseModerationComment', value => throwIfNotValid(value, isVideoAbuseModerationCommentValid, 'moderationComment', true))
   @Column(DataType.STRING(CONSTRAINTS_FIELDS.VIDEO_ABUSES.MODERATION_COMMENT.max))
   moderationComment: string
 
diff --git a/server/models/video/video-blacklist.ts b/server/models/video/video-blacklist.ts
index 2619b4950..d9fe9dfc9 100644
--- a/server/models/video/video-blacklist.ts
+++ b/server/models/video/video-blacklist.ts
@@ -1,22 +1,11 @@
-import {
-  AllowNull,
-  BelongsTo,
-  Column,
-  CreatedAt,
-  DataType,
-  Default,
-  ForeignKey,
-  Is, Model,
-  Table,
-  UpdatedAt,
-  IFindOptions
-} from 'sequelize-typescript'
+import { AllowNull, BelongsTo, Column, CreatedAt, DataType, Default, ForeignKey, Is, Model, Table, UpdatedAt } from 'sequelize-typescript'
 import { getSortOnModel, SortType, throwIfNotValid } from '../utils'
 import { VideoModel } from './video'
-import { VideoChannelModel, ScopeNames as VideoChannelScopeNames } from './video-channel'
+import { ScopeNames as VideoChannelScopeNames, VideoChannelModel } from './video-channel'
 import { isVideoBlacklistReasonValid, isVideoBlacklistTypeValid } from '../../helpers/custom-validators/video-blacklist'
 import { VideoBlacklist, VideoBlacklistType } from '../../../shared/models/videos'
 import { CONSTRAINTS_FIELDS } from '../../initializers/constants'
+import { FindOptions } from 'sequelize'
 
 @Table({
   tableName: 'videoBlacklist',
@@ -30,7 +19,7 @@ import { CONSTRAINTS_FIELDS } from '../../initializers/constants'
 export class VideoBlacklistModel extends Model<VideoBlacklistModel> {
 
   @AllowNull(true)
-  @Is('VideoBlacklistReason', value => throwIfNotValid(value, isVideoBlacklistReasonValid, 'reason'))
+  @Is('VideoBlacklistReason', value => throwIfNotValid(value, isVideoBlacklistReasonValid, 'reason', true))
   @Column(DataType.STRING(CONSTRAINTS_FIELDS.VIDEO_BLACKLIST.REASON.max))
   reason: string
 
@@ -63,7 +52,7 @@ export class VideoBlacklistModel extends Model<VideoBlacklistModel> {
   Video: VideoModel
 
   static listForApi (start: number, count: number, sort: SortType, type?: VideoBlacklistType) {
-    const query: IFindOptions<VideoBlacklistModel> = {
+    const query: FindOptions = {
       offset: start,
       limit: count,
       order: getSortOnModel(sort.sortModel, sort.sortValue),
diff --git a/server/models/video/video-caption.ts b/server/models/video/video-caption.ts
index f2dbbfde8..45c60e26b 100644
--- a/server/models/video/video-caption.ts
+++ b/server/models/video/video-caption.ts
@@ -1,4 +1,4 @@
-import * as Sequelize from 'sequelize'
+import { OrderItem, Transaction } from 'sequelize'
 import {
   AllowNull,
   BeforeDestroy,
@@ -115,19 +115,19 @@ export class VideoCaptionModel extends Model<VideoCaptionModel> {
     return VideoCaptionModel.findOne(query)
   }
 
-  static insertOrReplaceLanguage (videoId: number, language: string, transaction: Sequelize.Transaction) {
+  static insertOrReplaceLanguage (videoId: number, language: string, transaction: Transaction) {
     const values = {
       videoId,
       language
     }
 
-    return VideoCaptionModel.upsert<VideoCaptionModel>(values, { transaction, returning: true })
+    return (VideoCaptionModel.upsert<VideoCaptionModel>(values, { transaction, returning: true }) as any) // FIXME: typings
       .then(([ caption ]) => caption)
   }
 
   static listVideoCaptions (videoId: number) {
     const query = {
-      order: [ [ 'language', 'ASC' ] ],
+      order: [ [ 'language', 'ASC' ] ] as OrderItem[],
       where: {
         videoId
       }
@@ -140,7 +140,7 @@ export class VideoCaptionModel extends Model<VideoCaptionModel> {
     return VIDEO_LANGUAGES[language] || 'Unknown'
   }
 
-  static deleteAllCaptionsOfRemoteVideo (videoId: number, transaction: Sequelize.Transaction) {
+  static deleteAllCaptionsOfRemoteVideo (videoId: number, transaction: Transaction) {
     const query = {
       where: {
         videoId
diff --git a/server/models/video/video-change-ownership.ts b/server/models/video/video-change-ownership.ts
index 85e688c4f..a4f4d53f1 100644
--- a/server/models/video/video-change-ownership.ts
+++ b/server/models/video/video-change-ownership.ts
@@ -43,7 +43,7 @@ enum ScopeNames {
           { model: () => VideoFileModel }
         ]
       }
-    ]
+    ] as any // FIXME: sequelize typings
   }
 })
 export class VideoChangeOwnershipModel extends Model<VideoChangeOwnershipModel> {
diff --git a/server/models/video/video-channel.ts b/server/models/video/video-channel.ts
index 5b5075344..901006dea 100644
--- a/server/models/video/video-channel.ts
+++ b/server/models/video/video-channel.ts
@@ -9,7 +9,6 @@ import {
   DefaultScope,
   ForeignKey,
   HasMany,
-  IFindOptions,
   Is,
   Model,
   Scopes,
@@ -31,12 +30,12 @@ import { buildServerIdsFollowedBy, buildTrigramSearchIndex, createSimilarityAttr
 import { VideoModel } from './video'
 import { CONSTRAINTS_FIELDS, WEBSERVER } from '../../initializers/constants'
 import { ServerModel } from '../server/server'
-import { DefineIndexesOptions } from 'sequelize'
+import { FindOptions, ModelIndexesOptions, Op } from 'sequelize'
 import { AvatarModel } from '../avatar/avatar'
 import { VideoPlaylistModel } from './video-playlist'
 
 // FIXME: Define indexes here because there is an issue with TS and Sequelize.literal when called directly in the annotation
-const indexes: DefineIndexesOptions[] = [
+const indexes: ModelIndexesOptions[] = [
   buildTrigramSearchIndex('video_channel_name_trigram', 'name'),
 
   {
@@ -69,7 +68,7 @@ type AvailableForListOptions = {
 })
 @Scopes({
   [ScopeNames.SUMMARY]: (withAccount = false) => {
-    const base: IFindOptions<VideoChannelModel> = {
+    const base: FindOptions = {
       attributes: [ 'name', 'description', 'id', 'actorId' ],
       include: [
         {
@@ -112,13 +111,13 @@ type AvailableForListOptions = {
           },
           model: ActorModel,
           where: {
-            [Sequelize.Op.or]: [
+            [Op.or]: [
               {
                 serverId: null
               },
               {
                 serverId: {
-                  [ Sequelize.Op.in ]: Sequelize.literal(inQueryInstanceFollow)
+                  [ Op.in ]: Sequelize.literal(inQueryInstanceFollow)
                 }
               }
             ]
@@ -172,13 +171,13 @@ export class VideoChannelModel extends Model<VideoChannelModel> {
 
   @AllowNull(true)
   @Default(null)
-  @Is('VideoChannelDescription', value => throwIfNotValid(value, isVideoChannelDescriptionValid, 'description'))
+  @Is('VideoChannelDescription', value => throwIfNotValid(value, isVideoChannelDescriptionValid, 'description', true))
   @Column(DataType.STRING(CONSTRAINTS_FIELDS.VIDEO_CHANNELS.DESCRIPTION.max))
   description: string
 
   @AllowNull(true)
   @Default(null)
-  @Is('VideoChannelSupport', value => throwIfNotValid(value, isVideoChannelSupportValid, 'support'))
+  @Is('VideoChannelSupport', value => throwIfNotValid(value, isVideoChannelSupportValid, 'support', true))
   @Column(DataType.STRING(CONSTRAINTS_FIELDS.VIDEO_CHANNELS.SUPPORT.max))
   support: string
 
@@ -313,7 +312,7 @@ export class VideoChannelModel extends Model<VideoChannelModel> {
       limit: options.count,
       order: getSort(options.sort),
       where: {
-        [Sequelize.Op.or]: [
+        [Op.or]: [
           Sequelize.literal(
             'lower(immutable_unaccent("VideoChannelModel"."name")) % lower(immutable_unaccent(' + escapedSearch + '))'
           ),
diff --git a/server/models/video/video-comment.ts b/server/models/video/video-comment.ts
index cb5f1cbbe..5f7cd3671 100644
--- a/server/models/video/video-comment.ts
+++ b/server/models/video/video-comment.ts
@@ -1,4 +1,3 @@
-import * as Sequelize from 'sequelize'
 import {
   AllowNull,
   BeforeDestroy,
@@ -7,7 +6,6 @@ import {
   CreatedAt,
   DataType,
   ForeignKey,
-  IFindOptions,
   Is,
   Model,
   Scopes,
@@ -32,6 +30,7 @@ import { UserModel } from '../account/user'
 import { actorNameAlphabet } from '../../helpers/custom-validators/activitypub/actor'
 import { regexpCapture } from '../../helpers/regexp'
 import { uniq } from 'lodash'
+import { FindOptions, Op, Order, Sequelize, Transaction } from 'sequelize'
 
 enum ScopeNames {
   WITH_ACCOUNT = 'WITH_ACCOUNT',
@@ -86,7 +85,7 @@ enum ScopeNames {
           }
         ]
       }
-    ]
+    ] as any // FIXME: sequelize typings
   },
   [ScopeNames.WITH_IN_REPLY_TO]: {
     include: [
@@ -120,7 +119,7 @@ enum ScopeNames {
           }
         ]
       }
-    ]
+    ] as any // FIXME: sequelize typings
   }
 })
 @Table({
@@ -244,8 +243,8 @@ export class VideoCommentModel extends Model<VideoCommentModel> {
     }
   }
 
-  static loadById (id: number, t?: Sequelize.Transaction) {
-    const query: IFindOptions<VideoCommentModel> = {
+  static loadById (id: number, t?: Transaction) {
+    const query: FindOptions = {
       where: {
         id
       }
@@ -256,8 +255,8 @@ export class VideoCommentModel extends Model<VideoCommentModel> {
     return VideoCommentModel.findOne(query)
   }
 
-  static loadByIdAndPopulateVideoAndAccountAndReply (id: number, t?: Sequelize.Transaction) {
-    const query: IFindOptions<VideoCommentModel> = {
+  static loadByIdAndPopulateVideoAndAccountAndReply (id: number, t?: Transaction) {
+    const query: FindOptions = {
       where: {
         id
       }
@@ -270,8 +269,8 @@ export class VideoCommentModel extends Model<VideoCommentModel> {
       .findOne(query)
   }
 
-  static loadByUrlAndPopulateAccount (url: string, t?: Sequelize.Transaction) {
-    const query: IFindOptions<VideoCommentModel> = {
+  static loadByUrlAndPopulateAccount (url: string, t?: Transaction) {
+    const query: FindOptions = {
       where: {
         url
       }
@@ -282,8 +281,8 @@ export class VideoCommentModel extends Model<VideoCommentModel> {
     return VideoCommentModel.scope([ ScopeNames.WITH_ACCOUNT ]).findOne(query)
   }
 
-  static loadByUrlAndPopulateReplyAndVideo (url: string, t?: Sequelize.Transaction) {
-    const query: IFindOptions<VideoCommentModel> = {
+  static loadByUrlAndPopulateReplyAndVideo (url: string, t?: Transaction) {
+    const query: FindOptions = {
       where: {
         url
       }
@@ -307,7 +306,7 @@ export class VideoCommentModel extends Model<VideoCommentModel> {
         videoId,
         inReplyToCommentId: null,
         accountId: {
-          [Sequelize.Op.notIn]: Sequelize.literal(
+          [Op.notIn]: Sequelize.literal(
             '(' + buildBlockedAccountSQL(serverAccountId, userAccountId) + ')'
           )
         }
@@ -336,15 +335,15 @@ export class VideoCommentModel extends Model<VideoCommentModel> {
     const userAccountId = user ? user.Account.id : undefined
 
     const query = {
-      order: [ [ 'createdAt', 'ASC' ], [ 'updatedAt', 'ASC' ] ],
+      order: [ [ 'createdAt', 'ASC' ], [ 'updatedAt', 'ASC' ] ] as Order,
       where: {
         videoId,
-        [ Sequelize.Op.or ]: [
+        [ Op.or ]: [
           { id: threadId },
           { originCommentId: threadId }
         ],
         accountId: {
-          [Sequelize.Op.notIn]: Sequelize.literal(
+          [Op.notIn]: Sequelize.literal(
             '(' + buildBlockedAccountSQL(serverAccountId, userAccountId) + ')'
           )
         }
@@ -366,12 +365,12 @@ export class VideoCommentModel extends Model<VideoCommentModel> {
       })
   }
 
-  static listThreadParentComments (comment: VideoCommentModel, t: Sequelize.Transaction, order: 'ASC' | 'DESC' = 'ASC') {
+  static listThreadParentComments (comment: VideoCommentModel, t: Transaction, order: 'ASC' | 'DESC' = 'ASC') {
     const query = {
-      order: [ [ 'createdAt', order ] ],
+      order: [ [ 'createdAt', order ] ] as Order,
       where: {
         id: {
-          [ Sequelize.Op.in ]: Sequelize.literal('(' +
+          [ Op.in ]: Sequelize.literal('(' +
             'WITH RECURSIVE children (id, "inReplyToCommentId") AS ( ' +
               `SELECT id, "inReplyToCommentId" FROM "videoComment" WHERE id = ${comment.id} ` +
               'UNION ' +
@@ -380,7 +379,7 @@ export class VideoCommentModel extends Model<VideoCommentModel> {
             ') ' +
             'SELECT id FROM children' +
           ')'),
-          [ Sequelize.Op.ne ]: comment.id
+          [ Op.ne ]: comment.id
         }
       },
       transaction: t
@@ -391,9 +390,9 @@ export class VideoCommentModel extends Model<VideoCommentModel> {
       .findAll(query)
   }
 
-  static listAndCountByVideoId (videoId: number, start: number, count: number, t?: Sequelize.Transaction, order: 'ASC' | 'DESC' = 'ASC') {
+  static listAndCountByVideoId (videoId: number, start: number, count: number, t?: Transaction, order: 'ASC' | 'DESC' = 'ASC') {
     const query = {
-      order: [ [ 'createdAt', order ] ],
+      order: [ [ 'createdAt', order ] ] as Order,
       offset: start,
       limit: count,
       where: {
@@ -407,7 +406,7 @@ export class VideoCommentModel extends Model<VideoCommentModel> {
 
   static listForFeed (start: number, count: number, videoId?: number) {
     const query = {
-      order: [ [ 'createdAt', 'DESC' ] ],
+      order: [ [ 'createdAt', 'DESC' ] ] as Order,
       offset: start,
       limit: count,
       where: {},
@@ -457,7 +456,7 @@ export class VideoCommentModel extends Model<VideoCommentModel> {
     const query = {
       where: {
         updatedAt: {
-          [Sequelize.Op.lt]: beforeUpdatedAt
+          [Op.lt]: beforeUpdatedAt
         },
         videoId
       }
diff --git a/server/models/video/video-import.ts b/server/models/video/video-import.ts
index ec10085d6..588a13a4f 100644
--- a/server/models/video/video-import.ts
+++ b/server/models/video/video-import.ts
@@ -55,13 +55,13 @@ export class VideoImportModel extends Model<VideoImportModel> {
 
   @AllowNull(true)
   @Default(null)
-  @Is('VideoImportTargetUrl', value => throwIfNotValid(value, isVideoImportTargetUrlValid, 'targetUrl'))
+  @Is('VideoImportTargetUrl', value => throwIfNotValid(value, isVideoImportTargetUrlValid, 'targetUrl', true))
   @Column(DataType.STRING(CONSTRAINTS_FIELDS.VIDEO_IMPORTS.URL.max))
   targetUrl: string
 
   @AllowNull(true)
   @Default(null)
-  @Is('VideoImportMagnetUri', value => throwIfNotValid(value, isVideoMagnetUriValid, 'magnetUri'))
+  @Is('VideoImportMagnetUri', value => throwIfNotValid(value, isVideoMagnetUriValid, 'magnetUri', true))
   @Column(DataType.STRING(CONSTRAINTS_FIELDS.VIDEO_IMPORTS.URL.max)) // Use the same constraints than URLs
   magnetUri: string
 
diff --git a/server/models/video/video-playlist-element.ts b/server/models/video/video-playlist-element.ts
index 3396b1136..eeb3d6bbd 100644
--- a/server/models/video/video-playlist-element.ts
+++ b/server/models/video/video-playlist-element.ts
@@ -15,12 +15,12 @@ import {
 } from 'sequelize-typescript'
 import { VideoModel } from './video'
 import { VideoPlaylistModel } from './video-playlist'
-import * as Sequelize from 'sequelize'
 import { getSort, throwIfNotValid } from '../utils'
 import { isActivityPubUrlValid } from '../../helpers/custom-validators/activitypub/misc'
 import { CONSTRAINTS_FIELDS } from '../../initializers/constants'
 import { PlaylistElementObject } from '../../../shared/models/activitypub/objects/playlist-element-object'
 import * as validator from 'validator'
+import { AggregateOptions, Op, Sequelize, Transaction } from 'sequelize'
 
 @Table({
   tableName: 'videoPlaylistElement',
@@ -96,7 +96,7 @@ export class VideoPlaylistElementModel extends Model<VideoPlaylistElementModel>
   })
   Video: VideoModel
 
-  static deleteAllOf (videoPlaylistId: number, transaction?: Sequelize.Transaction) {
+  static deleteAllOf (videoPlaylistId: number, transaction?: Transaction) {
     const query = {
       where: {
         videoPlaylistId
@@ -140,7 +140,7 @@ export class VideoPlaylistElementModel extends Model<VideoPlaylistElementModel>
     return VideoPlaylistElementModel.findOne(query)
   }
 
-  static listUrlsOfForAP (videoPlaylistId: number, start: number, count: number, t?: Sequelize.Transaction) {
+  static listUrlsOfForAP (videoPlaylistId: number, start: number, count: number, t?: Transaction) {
     const query = {
       attributes: [ 'url' ],
       offset: start,
@@ -159,8 +159,8 @@ export class VideoPlaylistElementModel extends Model<VideoPlaylistElementModel>
       })
   }
 
-  static getNextPositionOf (videoPlaylistId: number, transaction?: Sequelize.Transaction) {
-    const query = {
+  static getNextPositionOf (videoPlaylistId: number, transaction?: Transaction) {
+    const query: AggregateOptions<number> = {
       where: {
         videoPlaylistId
       },
@@ -176,14 +176,14 @@ export class VideoPlaylistElementModel extends Model<VideoPlaylistElementModel>
     firstPosition: number,
     endPosition: number,
     newPosition: number,
-    transaction?: Sequelize.Transaction
+    transaction?: Transaction
   ) {
     const query = {
       where: {
         videoPlaylistId,
         position: {
-          [Sequelize.Op.gte]: firstPosition,
-          [Sequelize.Op.lte]: endPosition
+          [Op.gte]: firstPosition,
+          [Op.lte]: endPosition
         }
       },
       transaction,
@@ -198,13 +198,13 @@ export class VideoPlaylistElementModel extends Model<VideoPlaylistElementModel>
     fromPosition: number,
     toPosition?: number,
     by = 1,
-    transaction?: Sequelize.Transaction
+    transaction?: Transaction
   ) {
     const query = {
       where: {
         videoPlaylistId,
         position: {
-          [Sequelize.Op.gte]: fromPosition
+          [Op.gte]: fromPosition
         }
       },
       transaction
diff --git a/server/models/video/video-playlist.ts b/server/models/video/video-playlist.ts
index 073609c24..3e436acfc 100644
--- a/server/models/video/video-playlist.ts
+++ b/server/models/video/video-playlist.ts
@@ -15,7 +15,6 @@ import {
   Table,
   UpdatedAt
 } from 'sequelize-typescript'
-import * as Sequelize from 'sequelize'
 import { VideoPlaylistPrivacy } from '../../../shared/models/videos/playlist/video-playlist-privacy.model'
 import { buildServerIdsFollowedBy, buildWhereIdOrUUID, getSort, isOutdated, throwIfNotValid } from '../utils'
 import {
@@ -43,6 +42,7 @@ import { activityPubCollectionPagination } from '../../helpers/activitypub'
 import { VideoPlaylistType } from '../../../shared/models/videos/playlist/video-playlist-type.model'
 import { ThumbnailModel } from './thumbnail'
 import { ActivityIconObject } from '../../../shared/models/activitypub/objects'
+import { fn, literal, Op, Transaction } from 'sequelize'
 
 enum ScopeNames {
   AVAILABLE_FOR_LIST = 'AVAILABLE_FOR_LIST',
@@ -74,7 +74,11 @@ type AvailableForListOptions = {
     attributes: {
       include: [
         [
-          Sequelize.literal('(SELECT COUNT("id") FROM "videoPlaylistElement" WHERE "videoPlaylistId" = "VideoPlaylistModel"."id")'),
+          fn('COUNT', 'toto'),
+          'coucou'
+        ],
+        [
+          literal('(SELECT COUNT("id") FROM "videoPlaylistElement" WHERE "videoPlaylistId" = "VideoPlaylistModel"."id")'),
           'videosLength'
         ]
       ]
@@ -116,13 +120,13 @@ type AvailableForListOptions = {
     // Only list local playlists OR playlists that are on an instance followed by actorId
     const inQueryInstanceFollow = buildServerIdsFollowedBy(options.followerActorId)
     const actorWhere = {
-      [ Sequelize.Op.or ]: [
+      [ Op.or ]: [
         {
           serverId: null
         },
         {
           serverId: {
-            [ Sequelize.Op.in ]: Sequelize.literal(inQueryInstanceFollow)
+            [ Op.in ]: literal(inQueryInstanceFollow)
           }
         }
       ]
@@ -155,7 +159,7 @@ type AvailableForListOptions = {
     }
 
     const where = {
-      [Sequelize.Op.and]: whereAnd
+      [Op.and]: whereAnd
     }
 
     const accountScope = {
@@ -206,7 +210,7 @@ export class VideoPlaylistModel extends Model<VideoPlaylistModel> {
   name: string
 
   @AllowNull(true)
-  @Is('VideoPlaylistDescription', value => throwIfNotValid(value, isVideoPlaylistDescriptionValid, 'description'))
+  @Is('VideoPlaylistDescription', value => throwIfNotValid(value, isVideoPlaylistDescriptionValid, 'description', true))
   @Column
   description: string
 
@@ -344,7 +348,7 @@ export class VideoPlaylistModel extends Model<VideoPlaylistModel> {
           model: VideoPlaylistElementModel.unscoped(),
           where: {
             videoId: {
-              [Sequelize.Op.any]: videoIds
+              [Op.any]: videoIds
             }
           },
           required: true
@@ -368,7 +372,7 @@ export class VideoPlaylistModel extends Model<VideoPlaylistModel> {
       .then(e => !!e)
   }
 
-  static loadWithAccountAndChannelSummary (id: number | string, transaction: Sequelize.Transaction) {
+  static loadWithAccountAndChannelSummary (id: number | string, transaction: Transaction) {
     const where = buildWhereIdOrUUID(id)
 
     const query = {
@@ -381,7 +385,7 @@ export class VideoPlaylistModel extends Model<VideoPlaylistModel> {
       .findOne(query)
   }
 
-  static loadWithAccountAndChannel (id: number | string, transaction: Sequelize.Transaction) {
+  static loadWithAccountAndChannel (id: number | string, transaction: Transaction) {
     const where = buildWhereIdOrUUID(id)
 
     const query = {
@@ -412,7 +416,7 @@ export class VideoPlaylistModel extends Model<VideoPlaylistModel> {
     return VIDEO_PLAYLIST_TYPES[type] || 'Unknown'
   }
 
-  static resetPlaylistsOfChannel (videoChannelId: number, transaction: Sequelize.Transaction) {
+  static resetPlaylistsOfChannel (videoChannelId: number, transaction: Transaction) {
     const query = {
       where: {
         videoChannelId
@@ -489,7 +493,7 @@ export class VideoPlaylistModel extends Model<VideoPlaylistModel> {
         label: VideoPlaylistModel.getTypeLabel(this.type)
       },
 
-      videosLength: this.get('videosLength'),
+      videosLength: this.get('videosLength') as number,
 
       createdAt: this.createdAt,
       updatedAt: this.updatedAt,
@@ -499,7 +503,7 @@ export class VideoPlaylistModel extends Model<VideoPlaylistModel> {
     }
   }
 
-  toActivityPubObject (page: number, t: Sequelize.Transaction): Promise<PlaylistObject> {
+  toActivityPubObject (page: number, t: Transaction): Promise<PlaylistObject> {
     const handler = (start: number, count: number) => {
       return VideoPlaylistElementModel.listUrlsOfForAP(this.id, start, count, t)
     }
diff --git a/server/models/video/video-streaming-playlist.ts b/server/models/video/video-streaming-playlist.ts
index e50b5d106..b30267e09 100644
--- a/server/models/video/video-streaming-playlist.ts
+++ b/server/models/video/video-streaming-playlist.ts
@@ -1,8 +1,7 @@
-import { AllowNull, BelongsTo, Column, CreatedAt, DataType, ForeignKey, HasMany, Is, Model, Table, UpdatedAt } from 'sequelize-typescript'
+import { AllowNull, BelongsTo, Column, CreatedAt, ForeignKey, HasMany, Is, Model, Table, UpdatedAt, DataType } from 'sequelize-typescript'
 import { isVideoFileInfoHashValid } from '../../helpers/custom-validators/videos'
 import { throwIfNotValid } from '../utils'
 import { VideoModel } from './video'
-import * as Sequelize from 'sequelize'
 import { VideoRedundancyModel } from '../redundancy/video-redundancy'
 import { VideoStreamingPlaylistType } from '../../../shared/models/videos/video-streaming-playlist.type'
 import { isActivityPubUrlValid } from '../../helpers/custom-validators/activitypub/misc'
@@ -11,6 +10,7 @@ import { VideoFileModel } from './video-file'
 import { join } from 'path'
 import { sha1 } from '../../helpers/core-utils'
 import { isArrayOf } from '../../helpers/custom-validators/misc'
+import { QueryTypes, Op } from 'sequelize'
 
 @Table({
   tableName: 'videoStreamingPlaylist',
@@ -26,7 +26,7 @@ import { isArrayOf } from '../../helpers/custom-validators/misc'
       fields: [ 'p2pMediaLoaderInfohashes' ],
       using: 'gin'
     }
-  ]
+  ] as any // FIXME: sequelize typings
 })
 export class VideoStreamingPlaylistModel extends Model<VideoStreamingPlaylistModel> {
   @CreatedAt
@@ -46,7 +46,7 @@ export class VideoStreamingPlaylistModel extends Model<VideoStreamingPlaylistMod
 
   @AllowNull(false)
   @Is('VideoStreamingPlaylistInfoHashes', value => throwIfNotValid(value, v => isArrayOf(v, isVideoFileInfoHashValid), 'info hashes'))
-  @Column(DataType.ARRAY(DataType.STRING))
+  @Column({ type: DataType.ARRAY(DataType.STRING) }) // FIXME: typings
   p2pMediaLoaderInfohashes: string[]
 
   @AllowNull(false)
@@ -82,15 +82,13 @@ export class VideoStreamingPlaylistModel extends Model<VideoStreamingPlaylistMod
   static doesInfohashExist (infoHash: string) {
     const query = 'SELECT 1 FROM "videoStreamingPlaylist" WHERE $infoHash = ANY("p2pMediaLoaderInfohashes") LIMIT 1'
     const options = {
-      type: Sequelize.QueryTypes.SELECT,
+      type: QueryTypes.SELECT as QueryTypes.SELECT,
       bind: { infoHash },
       raw: true
     }
 
-    return VideoModel.sequelize.query(query, options)
-              .then(results => {
-                return results.length === 1
-              })
+    return VideoModel.sequelize.query<any>(query, options)
+              .then(results => results.length === 1)
   }
 
   static buildP2PMediaLoaderInfoHashes (playlistUrl: string, videoFiles: VideoFileModel[]) {
@@ -108,7 +106,7 @@ export class VideoStreamingPlaylistModel extends Model<VideoStreamingPlaylistMod
     const query = {
       where: {
         p2pMediaLoaderPeerVersion: {
-          [Sequelize.Op.ne]: P2P_MEDIA_LOADER_PEER_VERSION
+          [Op.ne]: P2P_MEDIA_LOADER_PEER_VERSION
         }
       }
     }
diff --git a/server/models/video/video.ts b/server/models/video/video.ts
index 9840d17fd..329cebd28 100644
--- a/server/models/video/video.ts
+++ b/server/models/video/video.ts
@@ -3,7 +3,18 @@ import { maxBy } from 'lodash'
 import * as magnetUtil from 'magnet-uri'
 import * as parseTorrent from 'parse-torrent'
 import { join } from 'path'
-import * as Sequelize from 'sequelize'
+import {
+  CountOptions,
+  FindOptions,
+  IncludeOptions,
+  ModelIndexesOptions,
+  Op,
+  QueryTypes,
+  ScopeOptions,
+  Sequelize,
+  Transaction,
+  WhereOptions
+} from 'sequelize'
 import {
   AllowNull,
   BeforeDestroy,
@@ -16,8 +27,6 @@ import {
   ForeignKey,
   HasMany,
   HasOne,
-  IFindOptions,
-  IIncludeOptions,
   Is,
   IsInt,
   IsUUID,
@@ -45,7 +54,7 @@ import {
   isVideoStateValid,
   isVideoSupportValid
 } from '../../helpers/custom-validators/videos'
-import { generateImageFromVideoFile, getVideoFileResolution } from '../../helpers/ffmpeg-utils'
+import { getVideoFileResolution } from '../../helpers/ffmpeg-utils'
 import { logger } from '../../helpers/logger'
 import { getServerActor } from '../../helpers/utils'
 import {
@@ -54,11 +63,9 @@ import {
   CONSTRAINTS_FIELDS,
   HLS_REDUNDANCY_DIRECTORY,
   HLS_STREAMING_PLAYLIST_DIRECTORY,
-  PREVIEWS_SIZE,
   REMOTE_SCHEME,
   STATIC_DOWNLOAD_PATHS,
   STATIC_PATHS,
-  THUMBNAILS_SIZE,
   VIDEO_CATEGORIES,
   VIDEO_LANGUAGES,
   VIDEO_LICENCES,
@@ -111,7 +118,7 @@ import { ThumbnailModel } from './thumbnail'
 import { ThumbnailType } from '../../../shared/models/videos/thumbnail.type'
 
 // FIXME: Define indexes here because there is an issue with TS and Sequelize.literal when called directly in the annotation
-const indexes: Sequelize.DefineIndexesOptions[] = [
+const indexes: (ModelIndexesOptions & { where?: WhereOptions })[] = [
   buildTrigramSearchIndex('video_name_trigram', 'name'),
 
   { fields: [ 'createdAt' ] },
@@ -123,7 +130,7 @@ const indexes: Sequelize.DefineIndexesOptions[] = [
     fields: [ 'originallyPublishedAt' ],
     where: {
       originallyPublishedAt: {
-        [Sequelize.Op.ne]: null
+        [Op.ne]: null
       }
     }
   },
@@ -131,7 +138,7 @@ const indexes: Sequelize.DefineIndexesOptions[] = [
     fields: [ 'category' ], // We don't care videos with an unknown category
     where: {
       category: {
-        [Sequelize.Op.ne]: null
+        [Op.ne]: null
       }
     }
   },
@@ -139,7 +146,7 @@ const indexes: Sequelize.DefineIndexesOptions[] = [
     fields: [ 'licence' ], // We don't care videos with an unknown licence
     where: {
       licence: {
-        [Sequelize.Op.ne]: null
+        [Op.ne]: null
       }
     }
   },
@@ -147,7 +154,7 @@ const indexes: Sequelize.DefineIndexesOptions[] = [
     fields: [ 'language' ], // We don't care videos with an unknown language
     where: {
       language: {
-        [Sequelize.Op.ne]: null
+        [Op.ne]: null
       }
     }
   },
@@ -222,10 +229,10 @@ type AvailableForListIDsOptions = {
 
 @Scopes({
   [ ScopeNames.FOR_API ]: (options: ForAPIOptions) => {
-    const query: IFindOptions<VideoModel> = {
+    const query: FindOptions = {
       where: {
         id: {
-          [ Sequelize.Op.any ]: options.ids
+          [ Op.in ]: options.ids // FIXME: sequelize any seems broken
         }
       },
       include: [
@@ -256,21 +263,21 @@ type AvailableForListIDsOptions = {
     return query
   },
   [ ScopeNames.AVAILABLE_FOR_LIST_IDS ]: (options: AvailableForListIDsOptions) => {
-    const query: IFindOptions<VideoModel> = {
+    const query: FindOptions = {
       raw: true,
       attributes: [ 'id' ],
       where: {
         id: {
-          [ Sequelize.Op.and ]: [
+          [ Op.and ]: [
             {
-              [ Sequelize.Op.notIn ]: Sequelize.literal(
+              [ Op.notIn ]: Sequelize.literal(
                 '(SELECT "videoBlacklist"."videoId" FROM "videoBlacklist")'
               )
             }
           ]
         },
         channelId: {
-          [ Sequelize.Op.notIn ]: Sequelize.literal(
+          [ Op.notIn ]: Sequelize.literal(
             '(' +
               'SELECT id FROM "videoChannel" WHERE "accountId" IN (' +
                 buildBlockedAccountSQL(options.serverAccountId, options.user ? options.user.Account.id : undefined) +
@@ -288,12 +295,12 @@ type AvailableForListIDsOptions = {
         // Always list public videos
         privacy: VideoPrivacy.PUBLIC,
         // Always list published videos, or videos that are being transcoded but on which we don't want to wait for transcoding
-        [ Sequelize.Op.or ]: [
+        [ Op.or ]: [
           {
             state: VideoState.PUBLISHED
           },
           {
-            [ Sequelize.Op.and ]: {
+            [ Op.and ]: {
               state: VideoState.TO_TRANSCODE,
               waitTranscoding: false
             }
@@ -318,7 +325,7 @@ type AvailableForListIDsOptions = {
     }
 
     if (options.filter || options.accountId || options.videoChannelId) {
-      const videoChannelInclude: IIncludeOptions = {
+      const videoChannelInclude: IncludeOptions = {
         attributes: [],
         model: VideoChannelModel.unscoped(),
         required: true
@@ -331,7 +338,7 @@ type AvailableForListIDsOptions = {
       }
 
       if (options.filter || options.accountId) {
-        const accountInclude: IIncludeOptions = {
+        const accountInclude: IncludeOptions = {
           attributes: [],
           model: AccountModel.unscoped(),
           required: true
@@ -371,8 +378,8 @@ type AvailableForListIDsOptions = {
 
       // Force actorId to be a number to avoid SQL injections
       const actorIdNumber = parseInt(options.followerActorId.toString(), 10)
-      query.where[ 'id' ][ Sequelize.Op.and ].push({
-        [ Sequelize.Op.in ]: Sequelize.literal(
+      query.where[ 'id' ][ Op.and ].push({
+        [ Op.in ]: Sequelize.literal(
           '(' +
           'SELECT "videoShare"."videoId" AS "id" FROM "videoShare" ' +
           'INNER JOIN "actorFollow" ON "actorFollow"."targetActorId" = "videoShare"."actorId" ' +
@@ -391,8 +398,8 @@ type AvailableForListIDsOptions = {
     }
 
     if (options.withFiles === true) {
-      query.where[ 'id' ][ Sequelize.Op.and ].push({
-        [ Sequelize.Op.in ]: Sequelize.literal(
+      query.where[ 'id' ][ Op.and ].push({
+        [ Op.in ]: Sequelize.literal(
           '(SELECT "videoId" FROM "videoFile")'
         )
       })
@@ -406,8 +413,8 @@ type AvailableForListIDsOptions = {
       }
 
       if (options.tagsOneOf) {
-        query.where[ 'id' ][ Sequelize.Op.and ].push({
-          [ Sequelize.Op.in ]: Sequelize.literal(
+        query.where[ 'id' ][ Op.and ].push({
+          [ Op.in ]: Sequelize.literal(
             '(' +
             'SELECT "videoId" FROM "videoTag" ' +
             'INNER JOIN "tag" ON "tag"."id" = "videoTag"."tagId" ' +
@@ -418,8 +425,8 @@ type AvailableForListIDsOptions = {
       }
 
       if (options.tagsAllOf) {
-        query.where[ 'id' ][ Sequelize.Op.and ].push({
-          [ Sequelize.Op.in ]: Sequelize.literal(
+        query.where[ 'id' ][ Op.and ].push({
+          [ Op.in ]: Sequelize.literal(
             '(' +
             'SELECT "videoId" FROM "videoTag" ' +
             'INNER JOIN "tag" ON "tag"."id" = "videoTag"."tagId" ' +
@@ -437,19 +444,19 @@ type AvailableForListIDsOptions = {
 
     if (options.categoryOneOf) {
       query.where[ 'category' ] = {
-        [ Sequelize.Op.or ]: options.categoryOneOf
+        [ Op.or ]: options.categoryOneOf
       }
     }
 
     if (options.licenceOneOf) {
       query.where[ 'licence' ] = {
-        [ Sequelize.Op.or ]: options.licenceOneOf
+        [ Op.or ]: options.licenceOneOf
       }
     }
 
     if (options.languageOneOf) {
       query.where[ 'language' ] = {
-        [ Sequelize.Op.or ]: options.languageOneOf
+        [ Op.or ]: options.languageOneOf
       }
     }
 
@@ -498,7 +505,7 @@ type AvailableForListIDsOptions = {
           }
         ]
       }
-    ]
+    ] as any // FIXME: sequelize typings
   },
   [ ScopeNames.WITH_ACCOUNT_DETAILS ]: {
     include: [
@@ -550,7 +557,7 @@ type AvailableForListIDsOptions = {
           }
         ]
       }
-    ]
+    ] as any // FIXME: sequelize typings
   },
   [ ScopeNames.WITH_TAGS ]: {
     include: [ () => TagModel ]
@@ -656,19 +663,19 @@ export class VideoModel extends Model<VideoModel> {
 
   @AllowNull(true)
   @Default(null)
-  @Is('VideoCategory', value => throwIfNotValid(value, isVideoCategoryValid, 'category'))
+  @Is('VideoCategory', value => throwIfNotValid(value, isVideoCategoryValid, 'category', true))
   @Column
   category: number
 
   @AllowNull(true)
   @Default(null)
-  @Is('VideoLicence', value => throwIfNotValid(value, isVideoLicenceValid, 'licence'))
+  @Is('VideoLicence', value => throwIfNotValid(value, isVideoLicenceValid, 'licence', true))
   @Column
   licence: number
 
   @AllowNull(true)
   @Default(null)
-  @Is('VideoLanguage', value => throwIfNotValid(value, isVideoLanguageValid, 'language'))
+  @Is('VideoLanguage', value => throwIfNotValid(value, isVideoLanguageValid, 'language', true))
   @Column(DataType.STRING(CONSTRAINTS_FIELDS.VIDEOS.LANGUAGE.max))
   language: string
 
@@ -684,13 +691,13 @@ export class VideoModel extends Model<VideoModel> {
 
   @AllowNull(true)
   @Default(null)
-  @Is('VideoDescription', value => throwIfNotValid(value, isVideoDescriptionValid, 'description'))
+  @Is('VideoDescription', value => throwIfNotValid(value, isVideoDescriptionValid, 'description', true))
   @Column(DataType.STRING(CONSTRAINTS_FIELDS.VIDEOS.DESCRIPTION.max))
   description: string
 
   @AllowNull(true)
   @Default(null)
-  @Is('VideoSupport', value => throwIfNotValid(value, isVideoSupportValid, 'support'))
+  @Is('VideoSupport', value => throwIfNotValid(value, isVideoSupportValid, 'support', true))
   @Column(DataType.STRING(CONSTRAINTS_FIELDS.VIDEOS.SUPPORT.max))
   support: string
 
@@ -754,7 +761,7 @@ export class VideoModel extends Model<VideoModel> {
   updatedAt: Date
 
   @AllowNull(false)
-  @Default(Sequelize.NOW)
+  @Default(DataType.NOW)
   @Column
   publishedAt: Date
 
@@ -999,12 +1006,12 @@ export class VideoModel extends Model<VideoModel> {
       distinct: true,
       offset: start,
       limit: count,
-      order: getVideoSort('createdAt', [ 'Tags', 'name', 'ASC' ]),
+      order: getVideoSort('createdAt', [ 'Tags', 'name', 'ASC' ] as any), // FIXME: sequelize typings
       where: {
         id: {
-          [ Sequelize.Op.in ]: Sequelize.literal('(' + rawQuery + ')')
+          [ Op.in ]: Sequelize.literal('(' + rawQuery + ')')
         },
-        [ Sequelize.Op.or ]: [
+        [ Op.or ]: [
           { privacy: VideoPrivacy.PUBLIC },
           { privacy: VideoPrivacy.UNLISTED }
         ]
@@ -1021,10 +1028,10 @@ export class VideoModel extends Model<VideoModel> {
           required: false,
           // We only want videos shared by this actor
           where: {
-            [ Sequelize.Op.and ]: [
+            [ Op.and ]: [
               {
                 id: {
-                  [ Sequelize.Op.not ]: null
+                  [ Op.not ]: null
                 }
               },
               {
@@ -1070,13 +1077,13 @@ export class VideoModel extends Model<VideoModel> {
     return Bluebird.all([
       // FIXME: typing issue
       VideoModel.scope(ScopeNames.WITH_THUMBNAILS).findAll(query as any),
-      VideoModel.sequelize.query(rawCountQuery, { type: Sequelize.QueryTypes.SELECT })
+      VideoModel.sequelize.query<{ total: number }>(rawCountQuery, { type: QueryTypes.SELECT })
     ]).then(([ rows, totals ]) => {
       // totals: totalVideos + totalVideoShares
       let totalVideos = 0
       let totalVideoShares = 0
-      if (totals[ 0 ]) totalVideos = parseInt(totals[ 0 ].total, 10)
-      if (totals[ 1 ]) totalVideoShares = parseInt(totals[ 1 ].total, 10)
+      if (totals[ 0 ]) totalVideos = parseInt(totals[ 0 ].total + '', 10)
+      if (totals[ 1 ]) totalVideoShares = parseInt(totals[ 1 ].total + '', 10)
 
       const total = totalVideos + totalVideoShares
       return {
@@ -1087,7 +1094,7 @@ export class VideoModel extends Model<VideoModel> {
   }
 
   static listUserVideosForApi (accountId: number, start: number, count: number, sort: string, withFiles = false) {
-    const query: IFindOptions<VideoModel> = {
+    const query: FindOptions = {
       offset: start,
       limit: count,
       order: getVideoSort(sort),
@@ -1158,7 +1165,7 @@ export class VideoModel extends Model<VideoModel> {
       throw new Error('Try to filter all-local but no user has not the see all videos right')
     }
 
-    const query: IFindOptions<VideoModel> = {
+    const query: FindOptions = {
       offset: options.start,
       limit: options.count,
       order: getVideoSort(options.sort)
@@ -1225,8 +1232,8 @@ export class VideoModel extends Model<VideoModel> {
     if (options.startDate || options.endDate) {
       const publishedAtRange = {}
 
-      if (options.startDate) publishedAtRange[ Sequelize.Op.gte ] = options.startDate
-      if (options.endDate) publishedAtRange[ Sequelize.Op.lte ] = options.endDate
+      if (options.startDate) publishedAtRange[ Op.gte ] = options.startDate
+      if (options.endDate) publishedAtRange[ Op.lte ] = options.endDate
 
       whereAnd.push({ publishedAt: publishedAtRange })
     }
@@ -1234,8 +1241,8 @@ export class VideoModel extends Model<VideoModel> {
     if (options.originallyPublishedStartDate || options.originallyPublishedEndDate) {
       const originallyPublishedAtRange = {}
 
-      if (options.originallyPublishedStartDate) originallyPublishedAtRange[ Sequelize.Op.gte ] = options.originallyPublishedStartDate
-      if (options.originallyPublishedEndDate) originallyPublishedAtRange[ Sequelize.Op.lte ] = options.originallyPublishedEndDate
+      if (options.originallyPublishedStartDate) originallyPublishedAtRange[ Op.gte ] = options.originallyPublishedStartDate
+      if (options.originallyPublishedEndDate) originallyPublishedAtRange[ Op.lte ] = options.originallyPublishedEndDate
 
       whereAnd.push({ originallyPublishedAt: originallyPublishedAtRange })
     }
@@ -1243,8 +1250,8 @@ export class VideoModel extends Model<VideoModel> {
     if (options.durationMin || options.durationMax) {
       const durationRange = {}
 
-      if (options.durationMin) durationRange[ Sequelize.Op.gte ] = options.durationMin
-      if (options.durationMax) durationRange[ Sequelize.Op.lte ] = options.durationMax
+      if (options.durationMin) durationRange[ Op.gte ] = options.durationMin
+      if (options.durationMax) durationRange[ Op.lte ] = options.durationMax
 
       whereAnd.push({ duration: durationRange })
     }
@@ -1256,7 +1263,7 @@ export class VideoModel extends Model<VideoModel> {
       whereAnd.push(
         {
           id: {
-            [ Sequelize.Op.in ]: Sequelize.literal(
+            [ Op.in ]: Sequelize.literal(
               '(' +
               'SELECT "video"."id" FROM "video" ' +
               'WHERE ' +
@@ -1282,7 +1289,7 @@ export class VideoModel extends Model<VideoModel> {
       )
     }
 
-    const query: IFindOptions<VideoModel> = {
+    const query: FindOptions = {
       attributes: {
         include: attributesInclude
       },
@@ -1290,7 +1297,7 @@ export class VideoModel extends Model<VideoModel> {
       limit: options.count,
       order: getVideoSort(options.sort),
       where: {
-        [ Sequelize.Op.and ]: whereAnd
+        [ Op.and ]: whereAnd
       }
     }
 
@@ -1312,7 +1319,7 @@ export class VideoModel extends Model<VideoModel> {
     return VideoModel.getAvailableForApi(query, queryOptions)
   }
 
-  static load (id: number | string, t?: Sequelize.Transaction) {
+  static load (id: number | string, t?: Transaction) {
     const where = buildWhereIdOrUUID(id)
     const options = {
       where,
@@ -1322,7 +1329,7 @@ export class VideoModel extends Model<VideoModel> {
     return VideoModel.scope(ScopeNames.WITH_THUMBNAILS).findOne(options)
   }
 
-  static loadWithRights (id: number | string, t?: Sequelize.Transaction) {
+  static loadWithRights (id: number | string, t?: Transaction) {
     const where = buildWhereIdOrUUID(id)
     const options = {
       where,
@@ -1336,7 +1343,7 @@ export class VideoModel extends Model<VideoModel> {
     ]).findOne(options)
   }
 
-  static loadOnlyId (id: number | string, t?: Sequelize.Transaction) {
+  static loadOnlyId (id: number | string, t?: Transaction) {
     const where = buildWhereIdOrUUID(id)
 
     const options = {
@@ -1348,7 +1355,7 @@ export class VideoModel extends Model<VideoModel> {
     return VideoModel.scope(ScopeNames.WITH_THUMBNAILS).findOne(options)
   }
 
-  static loadWithFiles (id: number, t?: Sequelize.Transaction, logging?: boolean) {
+  static loadWithFiles (id: number, t?: Transaction, logging?: boolean) {
     return VideoModel.scope([
       ScopeNames.WITH_FILES,
       ScopeNames.WITH_STREAMING_PLAYLISTS,
@@ -1366,8 +1373,8 @@ export class VideoModel extends Model<VideoModel> {
     return VideoModel.scope(ScopeNames.WITH_THUMBNAILS).findOne(options)
   }
 
-  static loadByUrl (url: string, transaction?: Sequelize.Transaction) {
-    const query: IFindOptions<VideoModel> = {
+  static loadByUrl (url: string, transaction?: Transaction) {
+    const query: FindOptions = {
       where: {
         url
       },
@@ -1377,8 +1384,8 @@ export class VideoModel extends Model<VideoModel> {
     return VideoModel.scope(ScopeNames.WITH_THUMBNAILS).findOne(query)
   }
 
-  static loadByUrlAndPopulateAccount (url: string, transaction?: Sequelize.Transaction) {
-    const query: IFindOptions<VideoModel> = {
+  static loadByUrlAndPopulateAccount (url: string, transaction?: Transaction) {
+    const query: FindOptions = {
       where: {
         url
       },
@@ -1393,11 +1400,11 @@ export class VideoModel extends Model<VideoModel> {
     ]).findOne(query)
   }
 
-  static loadAndPopulateAccountAndServerAndTags (id: number | string, t?: Sequelize.Transaction, userId?: number) {
+  static loadAndPopulateAccountAndServerAndTags (id: number | string, t?: Transaction, userId?: number) {
     const where = buildWhereIdOrUUID(id)
 
     const options = {
-      order: [ [ 'Tags', 'name', 'ASC' ] ],
+      order: [ [ 'Tags', 'name', 'ASC' ] ] as any, // FIXME: sequelize typings
       where,
       transaction: t
     }
@@ -1421,11 +1428,11 @@ export class VideoModel extends Model<VideoModel> {
       .findOne(options)
   }
 
-  static loadForGetAPI (id: number | string, t?: Sequelize.Transaction, userId?: number) {
+  static loadForGetAPI (id: number | string, t?: Transaction, userId?: number) {
     const where = buildWhereIdOrUUID(id)
 
     const options = {
-      order: [ [ 'Tags', 'name', 'ASC' ] ],
+      order: [ [ 'Tags', 'name', 'ASC' ] ] as any, // FIXME: sequelize typings
       where,
       transaction: t
     }
@@ -1489,7 +1496,7 @@ export class VideoModel extends Model<VideoModel> {
     'LIMIT 1'
 
     const options = {
-      type: Sequelize.QueryTypes.SELECT,
+      type: QueryTypes.SELECT,
       bind: { followerActorId, videoId },
       raw: true
     }
@@ -1509,14 +1516,14 @@ export class VideoModel extends Model<VideoModel> {
       includeLocalVideos: true
     }
 
-    const query: IFindOptions<VideoModel> = {
+    const query: FindOptions = {
       attributes: [ field ],
       limit: count,
       group: field,
       having: Sequelize.where(Sequelize.fn('COUNT', Sequelize.col(field)), {
-        [ Sequelize.Op.gte ]: threshold
+        [ Op.gte ]: threshold
       }) as any, // FIXME: typings
-      order: [ this.sequelize.random() ]
+      order: [ (this.sequelize as any).random() ]
     }
 
     return VideoModel.scope({ method: [ ScopeNames.AVAILABLE_FOR_LIST_IDS, scopeOptions ] })
@@ -1532,7 +1539,7 @@ export class VideoModel extends Model<VideoModel> {
       required: false,
       where: {
         startDate: {
-          [ Sequelize.Op.gte ]: new Date(new Date().getTime() - (24 * 3600 * 1000) * trendingDays)
+          [ Op.gte ]: new Date(new Date().getTime() - (24 * 3600 * 1000) * trendingDays)
         }
       }
     }
@@ -1549,11 +1556,11 @@ export class VideoModel extends Model<VideoModel> {
   }
 
   private static async getAvailableForApi (
-    query: IFindOptions<VideoModel>,
+    query: FindOptions,
     options: AvailableForListIDsOptions,
     countVideos = true
   ) {
-    const idsScope = {
+    const idsScope: ScopeOptions = {
       method: [
         ScopeNames.AVAILABLE_FOR_LIST_IDS, options
       ]
@@ -1561,8 +1568,8 @@ export class VideoModel extends Model<VideoModel> {
 
     // Remove trending sort on count, because it uses a group by
     const countOptions = Object.assign({}, options, { trendingDays: undefined })
-    const countQuery = Object.assign({}, query, { attributes: undefined, group: undefined })
-    const countScope = {
+    const countQuery: CountOptions = Object.assign({}, query, { attributes: undefined, group: undefined })
+    const countScope: ScopeOptions = {
       method: [
         ScopeNames.AVAILABLE_FOR_LIST_IDS, countOptions
       ]
@@ -1576,7 +1583,7 @@ export class VideoModel extends Model<VideoModel> {
 
     if (ids.length === 0) return { data: [], total: count }
 
-    const secondQuery: IFindOptions<VideoModel> = {
+    const secondQuery: FindOptions = {
       offset: 0,
       limit: query.limit,
       attributes: query.attributes,