Merge branch 'feature/strong-model-types' into develop

31 files changed, 409 insertions, 299 deletions

diff --git a/server/models/account/account-blocklist.ts b/server/models/account/account-blocklist.ts
index d5746ad76..8bcaca828 100644
--- a/server/models/account/account-blocklist.ts
+++ b/server/models/account/account-blocklist.ts
@@ -3,6 +3,8 @@ import { AccountModel } from './account'
 import { getSort } from '../utils'
 import { AccountBlock } from '../../../shared/models/blocklist'
 import { Op } from 'sequelize'
+import * as Bluebird from 'bluebird'
+import { MAccountBlocklist, MAccountBlocklistAccounts, MAccountBlocklistFormattable } from '@server/typings/models'
 
 enum ScopeNames {
   WITH_ACCOUNTS = 'WITH_ACCOUNTS'
@@ -103,7 +105,7 @@ export class AccountBlocklistModel extends Model<AccountBlocklistModel> {
                                 })
   }
 
-  static loadByAccountAndTarget (accountId: number, targetAccountId: number) {
+  static loadByAccountAndTarget (accountId: number, targetAccountId: number): Bluebird<MAccountBlocklist> {
     const query = {
       where: {
         accountId,
@@ -126,13 +128,13 @@ export class AccountBlocklistModel extends Model<AccountBlocklistModel> {
 
     return AccountBlocklistModel
       .scope([ ScopeNames.WITH_ACCOUNTS ])
-      .findAndCountAll(query)
+      .findAndCountAll<MAccountBlocklistAccounts>(query)
       .then(({ rows, count }) => {
         return { total: count, data: rows }
       })
   }
 
-  toFormattedJSON (): AccountBlock {
+  toFormattedJSON (this: MAccountBlocklistFormattable): AccountBlock {
     return {
       byAccount: this.ByAccount.toFormattedJSON(),
       blockedAccount: this.BlockedAccount.toFormattedJSON(),
diff --git a/server/models/account/account-video-rate.ts b/server/models/account/account-video-rate.ts
index 4bd8114cf..a6edbeee8 100644
--- a/server/models/account/account-video-rate.ts
+++ b/server/models/account/account-video-rate.ts
@@ -10,6 +10,13 @@ import { buildLocalAccountIdsIn, getSort, throwIfNotValid } from '../utils'
 import { isActivityPubUrlValid } from '../../helpers/custom-validators/activitypub/misc'
 import { AccountVideoRate } from '../../../shared'
 import { ScopeNames as VideoChannelScopeNames, SummaryOptions, VideoChannelModel } from '../video/video-channel'
+import * as Bluebird from 'bluebird'
+import {
+  MAccountVideoRate,
+  MAccountVideoRateAccountUrl,
+  MAccountVideoRateAccountVideo,
+  MAccountVideoRateFormattable
+} from '@server/typings/models/video/video-rate'
 
 /*
   Account rates per video.
@@ -77,7 +84,7 @@ export class AccountVideoRateModel extends Model<AccountVideoRateModel> {
   })
   Account: AccountModel
 
-  static load (accountId: number, videoId: number, transaction?: Transaction) {
+  static load (accountId: number, videoId: number, transaction?: Transaction): Bluebird<MAccountVideoRate> {
     const options: FindOptions = {
       where: {
         accountId,
@@ -89,7 +96,7 @@ export class AccountVideoRateModel extends Model<AccountVideoRateModel> {
     return AccountVideoRateModel.findOne(options)
   }
 
-  static loadByAccountAndVideoOrUrl (accountId: number, videoId: number, url: string, transaction?: Transaction) {
+  static loadByAccountAndVideoOrUrl (accountId: number, videoId: number, url: string, t?: Transaction): Bluebird<MAccountVideoRate> {
     const options: FindOptions = {
       where: {
         [ Op.or]: [
@@ -103,7 +110,7 @@ export class AccountVideoRateModel extends Model<AccountVideoRateModel> {
         ]
       }
     }
-    if (transaction) options.transaction = transaction
+    if (t) options.transaction = t
 
     return AccountVideoRateModel.findOne(options)
   }
@@ -140,7 +147,12 @@ export class AccountVideoRateModel extends Model<AccountVideoRateModel> {
     return AccountVideoRateModel.findAndCountAll(query)
   }
 
-  static loadLocalAndPopulateVideo (rateType: VideoRateType, accountName: string, videoId: number, transaction?: Transaction) {
+  static loadLocalAndPopulateVideo (
+    rateType: VideoRateType,
+    accountName: string,
+    videoId: number,
+    t?: Transaction
+  ): Bluebird<MAccountVideoRateAccountVideo> {
     const options: FindOptions = {
       where: {
         videoId,
@@ -152,7 +164,7 @@ export class AccountVideoRateModel extends Model<AccountVideoRateModel> {
           required: true,
           include: [
             {
-              attributes: [ 'id', 'url', 'preferredUsername' ],
+              attributes: [ 'id', 'url', 'followersUrl', 'preferredUsername' ],
               model: ActorModel.unscoped(),
               required: true,
               where: {
@@ -167,7 +179,7 @@ export class AccountVideoRateModel extends Model<AccountVideoRateModel> {
         }
       ]
     }
-    if (transaction) options.transaction = transaction
+    if (t) options.transaction = t
 
     return AccountVideoRateModel.findOne(options)
   }
@@ -208,7 +220,7 @@ export class AccountVideoRateModel extends Model<AccountVideoRateModel> {
       ]
     }
 
-    return AccountVideoRateModel.findAndCountAll(query)
+    return AccountVideoRateModel.findAndCountAll<MAccountVideoRateAccountUrl>(query)
   }
 
   static cleanOldRatesOf (videoId: number, type: VideoRateType, beforeUpdatedAt: Date) {
@@ -241,7 +253,7 @@ export class AccountVideoRateModel extends Model<AccountVideoRateModel> {
     })
   }
 
-  toFormattedJSON (): AccountVideoRate {
+  toFormattedJSON (this: MAccountVideoRateFormattable): AccountVideoRate {
     return {
       video: this.Video.toFormattedJSON(),
       rating: this.type
diff --git a/server/models/account/account.ts b/server/models/account/account.ts
index 4dc412301..394a55f5e 100644
--- a/server/models/account/account.ts
+++ b/server/models/account/account.ts
@@ -3,7 +3,8 @@ import {
   BeforeDestroy,
   BelongsTo,
   Column,
-  CreatedAt, DataType,
+  CreatedAt,
+  DataType,
   Default,
   DefaultScope,
   ForeignKey,
@@ -31,6 +32,8 @@ import { FindOptions, IncludeOptions, Op, Transaction, WhereOptions } from 'sequ
 import { AccountBlocklistModel } from './account-blocklist'
 import { ServerBlocklistModel } from '../server/server-blocklist'
 import { ActorFollowModel } from '../activitypub/actor-follow'
+import { MAccountActor, MAccountDefault, MAccountSummaryFormattable, MAccountFormattable, MAccountAP } from '../../typings/models'
+import * as Bluebird from 'bluebird'
 
 export enum ScopeNames {
   SUMMARY = 'SUMMARY'
@@ -229,11 +232,11 @@ export class AccountModel extends Model<AccountModel> {
     return undefined
   }
 
-  static load (id: number, transaction?: Transaction) {
+  static load (id: number, transaction?: Transaction): Bluebird<MAccountDefault> {
     return AccountModel.findByPk(id, { transaction })
   }
 
-  static loadByNameWithHost (nameWithHost: string) {
+  static loadByNameWithHost (nameWithHost: string): Bluebird<MAccountDefault> {
     const [ accountName, host ] = nameWithHost.split('@')
 
     if (!host || host === WEBSERVER.HOST) return AccountModel.loadLocalByName(accountName)
@@ -241,7 +244,7 @@ export class AccountModel extends Model<AccountModel> {
     return AccountModel.loadByNameAndHost(accountName, host)
   }
 
-  static loadLocalByName (name: string) {
+  static loadLocalByName (name: string): Bluebird<MAccountDefault> {
     const query = {
       where: {
         [ Op.or ]: [
@@ -271,7 +274,7 @@ export class AccountModel extends Model<AccountModel> {
     return AccountModel.findOne(query)
   }
 
-  static loadByNameAndHost (name: string, host: string) {
+  static loadByNameAndHost (name: string, host: string): Bluebird<MAccountDefault> {
     const query = {
       include: [
         {
@@ -296,7 +299,7 @@ export class AccountModel extends Model<AccountModel> {
     return AccountModel.findOne(query)
   }
 
-  static loadByUrl (url: string, transaction?: Transaction) {
+  static loadByUrl (url: string, transaction?: Transaction): Bluebird<MAccountDefault> {
     const query = {
       include: [
         {
@@ -329,7 +332,7 @@ export class AccountModel extends Model<AccountModel> {
       })
   }
 
-  static listLocalsForSitemap (sort: string) {
+  static listLocalsForSitemap (sort: string): Bluebird<MAccountActor[]> {
     const query = {
       attributes: [ ],
       offset: 0,
@@ -350,7 +353,7 @@ export class AccountModel extends Model<AccountModel> {
       .findAll(query)
   }
 
-  toFormattedJSON (): Account {
+  toFormattedJSON (this: MAccountFormattable): Account {
     const actor = this.Actor.toFormattedJSON()
     const account = {
       id: this.id,
@@ -364,8 +367,8 @@ export class AccountModel extends Model<AccountModel> {
     return Object.assign(actor, account)
   }
 
-  toFormattedSummaryJSON (): AccountSummary {
-    const actor = this.Actor.toFormattedJSON()
+  toFormattedSummaryJSON (this: MAccountSummaryFormattable): AccountSummary {
+    const actor = this.Actor.toFormattedSummaryJSON()
 
     return {
       id: this.id,
@@ -377,7 +380,7 @@ export class AccountModel extends Model<AccountModel> {
     }
   }
 
-  toActivityPubObject () {
+  toActivityPubObject (this: MAccountAP) {
     const obj = this.Actor.toActivityPubObject(this.name, 'Account')
 
     return Object.assign(obj, {
diff --git a/server/models/account/user-notification-setting.ts b/server/models/account/user-notification-setting.ts
index c2fbc6d23..1506295cf 100644
--- a/server/models/account/user-notification-setting.ts
+++ b/server/models/account/user-notification-setting.ts
@@ -17,6 +17,7 @@ import { UserModel } from './user'
 import { isUserNotificationSettingValid } from '../../helpers/custom-validators/user-notifications'
 import { UserNotificationSetting, UserNotificationSettingValue } from '../../../shared/models/users/user-notification-setting.model'
 import { clearCacheByUserId } from '../../lib/oauth-model'
+import { MNotificationSettingFormattable } from '@server/typings/models'
 
 @Table({
   tableName: 'userNotificationSetting',
@@ -152,7 +153,7 @@ export class UserNotificationSettingModel extends Model<UserNotificationSettingM
     return clearCacheByUserId(instance.userId)
   }
 
-  toFormattedJSON (): UserNotificationSetting {
+  toFormattedJSON (this: MNotificationSettingFormattable): UserNotificationSetting {
     return {
       newCommentOnMyVideo: this.newCommentOnMyVideo,
       newVideoFromSubscription: this.newVideoFromSubscription,
diff --git a/server/models/account/user-notification.ts b/server/models/account/user-notification.ts
index f38cd7e78..9b13a8376 100644
--- a/server/models/account/user-notification.ts
+++ b/server/models/account/user-notification.ts
@@ -16,6 +16,7 @@ import { ActorModel } from '../activitypub/actor'
 import { ActorFollowModel } from '../activitypub/actor-follow'
 import { AvatarModel } from '../avatar/avatar'
 import { ServerModel } from '../server/server'
+import { UserNotificationIncludes, UserNotificationModelForApi } from '@server/typings/models/user'
 
 enum ScopeNames {
   WITH_ALL = 'WITH_ALL'
@@ -371,7 +372,7 @@ export class UserNotificationModel extends Model<UserNotificationModel> {
     return UserNotificationModel.update({ read: true }, query)
   }
 
-  toFormattedJSON (): UserNotification {
+  toFormattedJSON (this: UserNotificationModelForApi): UserNotification {
     const video = this.Video
       ? Object.assign(this.formatVideo(this.Video),{ channel: this.formatActor(this.Video.VideoChannel) })
       : undefined
@@ -436,7 +437,7 @@ export class UserNotificationModel extends Model<UserNotificationModel> {
     }
   }
 
-  private formatVideo (video: VideoModel) {
+  formatVideo (this: UserNotificationModelForApi, video: UserNotificationIncludes.VideoInclude) {
     return {
       id: video.id,
       uuid: video.uuid,
@@ -444,7 +445,10 @@ export class UserNotificationModel extends Model<UserNotificationModel> {
     }
   }
 
-  private formatActor (accountOrChannel: AccountModel | VideoChannelModel) {
+  formatActor (
+    this: UserNotificationModelForApi,
+    accountOrChannel: UserNotificationIncludes.AccountIncludeActor | UserNotificationIncludes.VideoChannelIncludeActor
+  ) {
     const avatar = accountOrChannel.Actor.Avatar
       ? { path: accountOrChannel.Actor.Avatar.getStaticPath() }
       : undefined
diff --git a/server/models/account/user-video-history.ts b/server/models/account/user-video-history.ts
index a862fc45f..3fe4c8db1 100644
--- a/server/models/account/user-video-history.ts
+++ b/server/models/account/user-video-history.ts
@@ -1,7 +1,8 @@
 import { AllowNull, BelongsTo, Column, CreatedAt, ForeignKey, IsInt, Model, Table, UpdatedAt } from 'sequelize-typescript'
 import { VideoModel } from '../video/video'
 import { UserModel } from './user'
-import { Transaction, Op, DestroyOptions } from 'sequelize'
+import { DestroyOptions, Op, Transaction } from 'sequelize'
+import { MUserAccountId, MUserId } from '@server/typings/models'
 
 @Table({
   tableName: 'userVideoHistory',
@@ -54,7 +55,7 @@ export class UserVideoHistoryModel extends Model<UserVideoHistoryModel> {
   })
   User: UserModel
 
-  static listForApi (user: UserModel, start: number, count: number) {
+  static listForApi (user: MUserAccountId, start: number, count: number) {
     return VideoModel.listForApi({
       start,
       count,
@@ -67,7 +68,7 @@ export class UserVideoHistoryModel extends Model<UserVideoHistoryModel> {
     })
   }
 
-  static removeUserHistoryBefore (user: UserModel, beforeDate: string, t: Transaction) {
+  static removeUserHistoryBefore (user: MUserId, beforeDate: string, t: Transaction) {
     const query: DestroyOptions = {
       where: {
         userId: user.id
diff --git a/server/models/account/user.ts b/server/models/account/user.ts
index 0041bf577..616dd603c 100644
--- a/server/models/account/user.ts
+++ b/server/models/account/user.ts
@@ -54,6 +54,14 @@ import { VideoImportModel } from '../video/video-import'
 import { UserAdminFlag } from '../../../shared/models/users/user-flag.model'
 import { isThemeNameValid } from '../../helpers/custom-validators/plugins'
 import { getThemeOrDefault } from '../../lib/plugins/theme-utils'
+import * as Bluebird from 'bluebird'
+import {
+  MUserDefault,
+  MUserFormattable,
+  MUserId,
+  MUserNotifSettingChannelDefault,
+  MUserWithNotificationSetting
+} from '@server/typings/models'
 
 enum ScopeNames {
   WITH_VIDEO_CHANNEL = 'WITH_VIDEO_CHANNEL'
@@ -303,7 +311,7 @@ export class UserModel extends Model<UserModel> {
       })
   }
 
-  static listWithRight (right: UserRight) {
+  static listWithRight (right: UserRight): Bluebird<MUserDefault[]> {
     const roles = Object.keys(USER_ROLE_LABELS)
       .map(k => parseInt(k, 10) as UserRole)
       .filter(role => hasUserRight(role, right))
@@ -319,7 +327,7 @@ export class UserModel extends Model<UserModel> {
     return UserModel.findAll(query)
   }
 
-  static listUserSubscribersOf (actorId: number) {
+  static listUserSubscribersOf (actorId: number): Bluebird<MUserWithNotificationSetting[]> {
     const query = {
       include: [
         {
@@ -358,7 +366,7 @@ export class UserModel extends Model<UserModel> {
     return UserModel.unscoped().findAll(query)
   }
 
-  static listByUsernames (usernames: string[]) {
+  static listByUsernames (usernames: string[]): Bluebird<MUserDefault[]> {
     const query = {
       where: {
         username: usernames
@@ -368,11 +376,11 @@ export class UserModel extends Model<UserModel> {
     return UserModel.findAll(query)
   }
 
-  static loadById (id: number) {
+  static loadById (id: number): Bluebird<MUserDefault> {
     return UserModel.findByPk(id)
   }
 
-  static loadByUsername (username: string) {
+  static loadByUsername (username: string): Bluebird<MUserDefault> {
     const query = {
       where: {
         username: { [ Op.iLike ]: username }
@@ -382,7 +390,7 @@ export class UserModel extends Model<UserModel> {
     return UserModel.findOne(query)
   }
 
-  static loadByUsernameAndPopulateChannels (username: string) {
+  static loadByUsernameAndPopulateChannels (username: string): Bluebird<MUserNotifSettingChannelDefault> {
     const query = {
       where: {
         username: { [ Op.iLike ]: username }
@@ -392,7 +400,7 @@ export class UserModel extends Model<UserModel> {
     return UserModel.scope(ScopeNames.WITH_VIDEO_CHANNEL).findOne(query)
   }
 
-  static loadByEmail (email: string) {
+  static loadByEmail (email: string): Bluebird<MUserDefault> {
     const query = {
       where: {
         email
@@ -402,7 +410,7 @@ export class UserModel extends Model<UserModel> {
     return UserModel.findOne(query)
   }
 
-  static loadByUsernameOrEmail (username: string, email?: string) {
+  static loadByUsernameOrEmail (username: string, email?: string): Bluebird<MUserDefault> {
     if (!email) email = username
 
     const query = {
@@ -414,7 +422,7 @@ export class UserModel extends Model<UserModel> {
     return UserModel.findOne(query)
   }
 
-  static loadByVideoId (videoId: number) {
+  static loadByVideoId (videoId: number): Bluebird<MUserDefault> {
     const query = {
       include: [
         {
@@ -445,7 +453,7 @@ export class UserModel extends Model<UserModel> {
     return UserModel.findOne(query)
   }
 
-  static loadByVideoImportId (videoImportId: number) {
+  static loadByVideoImportId (videoImportId: number): Bluebird<MUserDefault> {
     const query = {
       include: [
         {
@@ -462,7 +470,7 @@ export class UserModel extends Model<UserModel> {
     return UserModel.findOne(query)
   }
 
-  static loadByChannelActorId (videoChannelActorId: number) {
+  static loadByChannelActorId (videoChannelActorId: number): Bluebird<MUserDefault> {
     const query = {
       include: [
         {
@@ -486,7 +494,7 @@ export class UserModel extends Model<UserModel> {
     return UserModel.findOne(query)
   }
 
-  static loadByAccountActorId (accountActorId: number) {
+  static loadByAccountActorId (accountActorId: number): Bluebird<MUserDefault> {
     const query = {
       include: [
         {
@@ -503,7 +511,7 @@ export class UserModel extends Model<UserModel> {
     return UserModel.findOne(query)
   }
 
-  static getOriginalVideoFileTotalFromUser (user: UserModel) {
+  static getOriginalVideoFileTotalFromUser (user: MUserId) {
     // Don't use sequelize because we need to use a sub query
     const query = UserModel.generateUserQuotaBaseSQL()
 
@@ -511,7 +519,7 @@ export class UserModel extends Model<UserModel> {
   }
 
   // Returns cumulative size of all video files uploaded in the last 24 hours.
-  static getOriginalVideoFileTotalDailyFromUser (user: UserModel) {
+  static getOriginalVideoFileTotalDailyFromUser (user: MUserId) {
     // Don't use sequelize because we need to use a sub query
     const query = UserModel.generateUserQuotaBaseSQL('"video"."createdAt" > now() - interval \'24 hours\'')
 
@@ -552,7 +560,9 @@ export class UserModel extends Model<UserModel> {
     return comparePassword(password, this.password)
   }
 
-  toFormattedJSON (parameters: { withAdminFlags?: boolean } = {}): User {
+  toSummaryJSON
+
+  toFormattedJSON (this: MUserFormattable, parameters: { withAdminFlags?: boolean } = {}): User {
     const videoQuotaUsed = this.get('videoQuotaUsed')
     const videoQuotaUsedDaily = this.get('videoQuotaUsedDaily')
 
diff --git a/server/models/activitypub/actor-follow.ts b/server/models/activitypub/actor-follow.ts
index 51b09e09b..c8b3aae9f 100644
--- a/server/models/activitypub/actor-follow.ts
+++ b/server/models/activitypub/actor-follow.ts
@@ -27,7 +27,14 @@ import { createSafeIn, getSort } from '../utils'
 import { ActorModel, unusedActorAttributesForAPI } from './actor'
 import { VideoChannelModel } from '../video/video-channel'
 import { AccountModel } from '../account/account'
-import { IncludeOptions, Op, Transaction, QueryTypes } from 'sequelize'
+import { IncludeOptions, Op, QueryTypes, Transaction } from 'sequelize'
+import {
+  MActorFollowActorsDefault,
+  MActorFollowActorsDefaultSubscription,
+  MActorFollowFollowingHost,
+  MActorFollowFormattable,
+  MActorFollowSubscriptions
+} from '@server/typings/models'
 
 @Table({
   tableName: 'actorFollow',
@@ -143,7 +150,7 @@ export class ActorFollowModel extends Model<ActorFollowModel> {
     if (numberOfActorFollowsRemoved) logger.info('Removed bad %d actor follows.', numberOfActorFollowsRemoved)
   }
 
-  static loadByActorAndTarget (actorId: number, targetActorId: number, t?: Transaction) {
+  static loadByActorAndTarget (actorId: number, targetActorId: number, t?: Transaction): Bluebird<MActorFollowActorsDefault> {
     const query = {
       where: {
         actorId,
@@ -167,7 +174,12 @@ export class ActorFollowModel extends Model<ActorFollowModel> {
     return ActorFollowModel.findOne(query)
   }
 
-  static loadByActorAndTargetNameAndHostForAPI (actorId: number, targetName: string, targetHost: string, t?: Transaction) {
+  static loadByActorAndTargetNameAndHostForAPI (
+    actorId: number,
+    targetName: string,
+    targetHost: string,
+    t?: Transaction
+  ): Bluebird<MActorFollowActorsDefaultSubscription> {
     const actorFollowingPartInclude: IncludeOptions = {
       model: ActorModel,
       required: true,
@@ -220,7 +232,7 @@ export class ActorFollowModel extends Model<ActorFollowModel> {
       })
   }
 
-  static listSubscribedIn (actorId: number, targets: { name: string, host?: string }[]) {
+  static listSubscribedIn (actorId: number, targets: { name: string, host?: string }[]): Bluebird<MActorFollowFollowingHost[]> {
     const whereTab = targets
       .map(t => {
         if (t.host) {
@@ -314,7 +326,7 @@ export class ActorFollowModel extends Model<ActorFollowModel> {
       ]
     }
 
-    return ActorFollowModel.findAndCountAll(query)
+    return ActorFollowModel.findAndCountAll<MActorFollowActorsDefault>(query)
       .then(({ rows, count }) => {
         return {
           data: rows,
@@ -357,7 +369,7 @@ export class ActorFollowModel extends Model<ActorFollowModel> {
       ]
     }
 
-    return ActorFollowModel.findAndCountAll(query)
+    return ActorFollowModel.findAndCountAll<MActorFollowActorsDefault>(query)
                            .then(({ rows, count }) => {
                              return {
                                data: rows,
@@ -414,7 +426,7 @@ export class ActorFollowModel extends Model<ActorFollowModel> {
       ]
     }
 
-    return ActorFollowModel.findAndCountAll(query)
+    return ActorFollowModel.findAndCountAll<MActorFollowSubscriptions>(query)
                            .then(({ rows, count }) => {
                              return {
                                data: rows.map(r => r.ActorFollowing.VideoChannel),
@@ -569,7 +581,7 @@ export class ActorFollowModel extends Model<ActorFollowModel> {
     return ActorFollowModel.findAll(query)
   }
 
-  toFormattedJSON (): ActorFollow {
+  toFormattedJSON (this: MActorFollowFormattable): ActorFollow {
     const follower = this.ActorFollower.toFormattedJSON()
     const following = this.ActorFollowing.toFormattedJSON()
 
diff --git a/server/models/activitypub/actor.ts b/server/models/activitypub/actor.ts
index 9cc53f78a..fb4327e4f 100644
--- a/server/models/activitypub/actor.ts
+++ b/server/models/activitypub/actor.ts
@@ -36,6 +36,18 @@ import { isOutdated, throwIfNotValid } from '../utils'
 import { VideoChannelModel } from '../video/video-channel'
 import { ActorFollowModel } from './actor-follow'
 import { VideoModel } from '../video/video'
+import {
+  MActor,
+  MActorAccountChannelId,
+  MActorAP,
+  MActorFormattable,
+  MActorFull,
+  MActorHost,
+  MActorRedundancyAllowedOpt,
+  MActorServer,
+  MActorSummaryFormattable
+} from '../../typings/models'
+import * as Bluebird from 'bluebird'
 
 enum ScopeNames {
   FULL = 'FULL'
@@ -252,11 +264,15 @@ export class ActorModel extends Model<ActorModel> {
   })
   VideoChannel: VideoChannelModel
 
-  static load (id: number) {
+  static load (id: number): Bluebird<MActor> {
     return ActorModel.unscoped().findByPk(id)
   }
 
-  static loadAccountActorByVideoId (videoId: number, transaction: Sequelize.Transaction) {
+  static loadFull (id: number): Bluebird<MActorFull> {
+    return ActorModel.scope(ScopeNames.FULL).findByPk(id)
+  }
+
+  static loadFromAccountByVideoId (videoId: number, transaction: Sequelize.Transaction): Bluebird<MActor> {
     const query = {
       include: [
         {
@@ -300,7 +316,7 @@ export class ActorModel extends Model<ActorModel> {
       .then(a => !!a)
   }
 
-  static listByFollowersUrls (followersUrls: string[], transaction?: Sequelize.Transaction) {
+  static listByFollowersUrls (followersUrls: string[], transaction?: Sequelize.Transaction): Bluebird<MActorFull[]> {
     const query = {
       where: {
         followersUrl: {
@@ -313,7 +329,7 @@ export class ActorModel extends Model<ActorModel> {
     return ActorModel.scope(ScopeNames.FULL).findAll(query)
   }
 
-  static loadLocalByName (preferredUsername: string, transaction?: Sequelize.Transaction) {
+  static loadLocalByName (preferredUsername: string, transaction?: Sequelize.Transaction): Bluebird<MActorFull> {
     const query = {
       where: {
         preferredUsername,
@@ -325,7 +341,7 @@ export class ActorModel extends Model<ActorModel> {
     return ActorModel.scope(ScopeNames.FULL).findOne(query)
   }
 
-  static loadByNameAndHost (preferredUsername: string, host: string) {
+  static loadByNameAndHost (preferredUsername: string, host: string): Bluebird<MActorFull> {
     const query = {
       where: {
         preferredUsername
@@ -344,7 +360,7 @@ export class ActorModel extends Model<ActorModel> {
     return ActorModel.scope(ScopeNames.FULL).findOne(query)
   }
 
-  static loadByUrl (url: string, transaction?: Sequelize.Transaction) {
+  static loadByUrl (url: string, transaction?: Sequelize.Transaction): Bluebird<MActorAccountChannelId> {
     const query = {
       where: {
         url
@@ -367,7 +383,7 @@ export class ActorModel extends Model<ActorModel> {
     return ActorModel.unscoped().findOne(query)
   }
 
-  static loadByUrlAndPopulateAccountAndChannel (url: string, transaction?: Sequelize.Transaction) {
+  static loadByUrlAndPopulateAccountAndChannel (url: string, transaction?: Sequelize.Transaction): Bluebird<MActorFull> {
     const query = {
       where: {
         url
@@ -387,27 +403,34 @@ export class ActorModel extends Model<ActorModel> {
     })
   }
 
-  toFormattedJSON () {
+  toFormattedSummaryJSON (this: MActorSummaryFormattable) {
     let avatar: Avatar = null
     if (this.Avatar) {
       avatar = this.Avatar.toFormattedJSON()
     }
 
     return {
-      id: this.id,
       url: this.url,
       name: this.preferredUsername,
       host: this.getHost(),
+      avatar
+    }
+  }
+
+  toFormattedJSON (this: MActorFormattable) {
+    const base = this.toFormattedSummaryJSON()
+
+    return Object.assign(base, {
+      id: this.id,
       hostRedundancyAllowed: this.getRedundancyAllowed(),
       followingCount: this.followingCount,
       followersCount: this.followersCount,
-      avatar,
       createdAt: this.createdAt,
       updatedAt: this.updatedAt
-    }
+    })
   }
 
-  toActivityPubObject (name: string, type: 'Account' | 'Application' | 'VideoChannel') {
+  toActivityPubObject (this: MActorAP, name: string, type: 'Account' | 'Application' | 'VideoChannel') {
     let activityPubType
     if (type === 'Account') {
       activityPubType = 'Person' as 'Person'
@@ -494,7 +517,7 @@ export class ActorModel extends Model<ActorModel> {
     return this.serverId === null
   }
 
-  getWebfingerUrl () {
+  getWebfingerUrl (this: MActorServer) {
     return 'acct:' + this.preferredUsername + '@' + this.getHost()
   }
 
@@ -502,7 +525,7 @@ export class ActorModel extends Model<ActorModel> {
     return this.Server ? `${this.preferredUsername}@${this.Server.host}` : this.preferredUsername
   }
 
-  getHost () {
+  getHost (this: MActorHost) {
     return this.Server ? this.Server.host : WEBSERVER.HOST
   }
 
diff --git a/server/models/avatar/avatar.ts b/server/models/avatar/avatar.ts
index b40144592..950e4b181 100644
--- a/server/models/avatar/avatar.ts
+++ b/server/models/avatar/avatar.ts
@@ -7,6 +7,7 @@ import { remove } from 'fs-extra'
 import { CONFIG } from '../../initializers/config'
 import { throwIfNotValid } from '../utils'
 import { isActivityPubUrlValid } from '../../helpers/custom-validators/activitypub/misc'
+import { MAvatarFormattable } from '@server/typings/models'
 
 @Table({
   tableName: 'avatar',
@@ -57,7 +58,7 @@ export class AvatarModel extends Model<AvatarModel> {
     return AvatarModel.findOne(query)
   }
 
-  toFormattedJSON (): Avatar {
+  toFormattedJSON (this: MAvatarFormattable): Avatar {
     return {
       path: this.getStaticPath(),
       createdAt: this.createdAt,
diff --git a/server/models/oauth/oauth-token.ts b/server/models/oauth/oauth-token.ts
index 903d551df..b680be237 100644
--- a/server/models/oauth/oauth-token.ts
+++ b/server/models/oauth/oauth-token.ts
@@ -18,6 +18,8 @@ import { Transaction } from 'sequelize'
 import { AccountModel } from '../account/account'
 import { ActorModel } from '../activitypub/actor'
 import { clearCacheByToken } from '../../lib/oauth-model'
+import * as Bluebird from 'bluebird'
+import { MOAuthTokenUser } from '@server/typings/models/oauth/oauth-token'
 
 export type OAuthTokenInfo = {
   refreshToken: string
@@ -160,7 +162,7 @@ export class OAuthTokenModel extends Model<OAuthTokenModel> {
       })
   }
 
-  static getByTokenAndPopulateUser (bearerToken: string) {
+  static getByTokenAndPopulateUser (bearerToken: string): Bluebird<MOAuthTokenUser> {
     const query = {
       where: {
         accessToken: bearerToken
@@ -170,13 +172,13 @@ export class OAuthTokenModel extends Model<OAuthTokenModel> {
     return OAuthTokenModel.scope(ScopeNames.WITH_USER)
                           .findOne(query)
                           .then(token => {
-                            if (token) token[ 'user' ] = token.User
+                            if (!token) return null
 
-                            return token
+                            return Object.assign(token, { user: token.User })
                           })
   }
 
-  static getByRefreshTokenAndPopulateUser (refreshToken: string) {
+  static getByRefreshTokenAndPopulateUser (refreshToken: string): Bluebird<MOAuthTokenUser> {
     const query = {
       where: {
         refreshToken: refreshToken
@@ -186,12 +188,9 @@ export class OAuthTokenModel extends Model<OAuthTokenModel> {
     return OAuthTokenModel.scope(ScopeNames.WITH_USER)
       .findOne(query)
       .then(token => {
-        if (token) {
-          token['user'] = token.User
-          return token
-        } else {
-          return new OAuthTokenModel()
-        }
+        if (!token) return new OAuthTokenModel()
+
+        return Object.assign(token, { user: token.User })
       })
   }
 
diff --git a/server/models/redundancy/video-redundancy.ts b/server/models/redundancy/video-redundancy.ts
index 3df1c4f9c..61d9a5612 100644
--- a/server/models/redundancy/video-redundancy.ts
+++ b/server/models/redundancy/video-redundancy.ts
@@ -30,6 +30,7 @@ import * as Bluebird from 'bluebird'
 import { col, FindOptions, fn, literal, Op, Transaction } from 'sequelize'
 import { VideoStreamingPlaylistModel } from '../video/video-streaming-playlist'
 import { CONFIG } from '../../initializers/config'
+import { MVideoRedundancy, MVideoRedundancyAP, MVideoRedundancyVideo } from '@server/typings/models'
 
 export enum ScopeNames {
   WITH_VIDEO = 'WITH_VIDEO'
@@ -166,7 +167,7 @@ export class VideoRedundancyModel extends Model<VideoRedundancyModel> {
     return undefined
   }
 
-  static async loadLocalByFileId (videoFileId: number) {
+  static async loadLocalByFileId (videoFileId: number): Promise<MVideoRedundancyVideo> {
     const actor = await getServerActor()
 
     const query = {
@@ -179,7 +180,7 @@ export class VideoRedundancyModel extends Model<VideoRedundancyModel> {
     return VideoRedundancyModel.scope(ScopeNames.WITH_VIDEO).findOne(query)
   }
 
-  static async loadLocalByStreamingPlaylistId (videoStreamingPlaylistId: number) {
+  static async loadLocalByStreamingPlaylistId (videoStreamingPlaylistId: number): Promise<MVideoRedundancyVideo> {
     const actor = await getServerActor()
 
     const query = {
@@ -192,7 +193,7 @@ export class VideoRedundancyModel extends Model<VideoRedundancyModel> {
     return VideoRedundancyModel.scope(ScopeNames.WITH_VIDEO).findOne(query)
   }
 
-  static loadByUrl (url: string, transaction?: Transaction) {
+  static loadByUrl (url: string, transaction?: Transaction): Bluebird<MVideoRedundancy> {
     const query = {
       where: {
         url
@@ -306,7 +307,7 @@ export class VideoRedundancyModel extends Model<VideoRedundancyModel> {
     return VideoRedundancyModel.getVideoSample(VideoModel.unscoped().findAll(query))
   }
 
-  static async loadOldestLocalThatAlreadyExpired (strategy: VideoRedundancyStrategy, expiresAfterMs: number) {
+  static async loadOldestLocalExpired (strategy: VideoRedundancyStrategy, expiresAfterMs: number): Promise<MVideoRedundancyVideo> {
     const expiredDate = new Date()
     expiredDate.setMilliseconds(expiredDate.getMilliseconds() - expiresAfterMs)
 
@@ -487,7 +488,7 @@ export class VideoRedundancyModel extends Model<VideoRedundancyModel> {
     return !!this.strategy
   }
 
-  toActivityPubObject (): CacheFileObject {
+  toActivityPubObject (this: MVideoRedundancyAP): CacheFileObject {
     if (this.VideoStreamingPlaylist) {
       return {
         id: this.url,
diff --git a/server/models/server/plugin.ts b/server/models/server/plugin.ts
index a15f9a7e2..d094da1f5 100644
--- a/server/models/server/plugin.ts
+++ b/server/models/server/plugin.ts
@@ -11,6 +11,8 @@ import { PluginType } from '../../../shared/models/plugins/plugin.type'
 import { PeerTubePlugin } from '../../../shared/models/plugins/peertube-plugin.model'
 import { FindAndCountOptions, json } from 'sequelize'
 import { RegisterServerSettingOptions } from '../../../shared/models/plugins/register-server-setting.model'
+import * as Bluebird from 'bluebird'
+import { MPlugin, MPluginFormattable } from '@server/typings/models'
 
 @DefaultScope(() => ({
   attributes: {
@@ -85,7 +87,7 @@ export class PluginModel extends Model<PluginModel> {
   @UpdatedAt
   updatedAt: Date
 
-  static listEnabledPluginsAndThemes () {
+  static listEnabledPluginsAndThemes (): Bluebird<MPlugin[]> {
     const query = {
       where: {
         enabled: true,
@@ -96,7 +98,7 @@ export class PluginModel extends Model<PluginModel> {
     return PluginModel.findAll(query)
   }
 
-  static loadByNpmName (npmName: string) {
+  static loadByNpmName (npmName: string): Bluebird<MPlugin> {
     const name = this.normalizePluginName(npmName)
     const type = this.getTypeFromNpmName(npmName)
 
@@ -206,13 +208,13 @@ export class PluginModel extends Model<PluginModel> {
     if (options.pluginType) query.where['type'] = options.pluginType
 
     return PluginModel
-      .findAndCountAll(query)
+      .findAndCountAll<MPlugin>(query)
       .then(({ rows, count }) => {
         return { total: count, data: rows }
       })
   }
 
-  static listInstalled () {
+  static listInstalled (): Bluebird<MPlugin[]> {
     const query = {
       where: {
         uninstalled: false
@@ -251,7 +253,7 @@ export class PluginModel extends Model<PluginModel> {
     return result
   }
 
-  toFormattedJSON (): PeerTubePlugin {
+  toFormattedJSON (this: MPluginFormattable): PeerTubePlugin {
     return {
       name: this.name,
       type: this.type,
diff --git a/server/models/server/server-blocklist.ts b/server/models/server/server-blocklist.ts
index 5138b0f76..3e9687191 100644
--- a/server/models/server/server-blocklist.ts
+++ b/server/models/server/server-blocklist.ts
@@ -3,6 +3,8 @@ import { AccountModel } from '../account/account'
 import { ServerModel } from './server'
 import { ServerBlock } from '../../../shared/models/blocklist'
 import { getSort } from '../utils'
+import * as Bluebird from 'bluebird'
+import { MServerBlocklist, MServerBlocklistAccountServer, MServerBlocklistFormattable } from '@server/typings/models'
 
 enum ScopeNames {
   WITH_ACCOUNT = 'WITH_ACCOUNT',
@@ -73,7 +75,7 @@ export class ServerBlocklistModel extends Model<ServerBlocklistModel> {
   })
   BlockedServer: ServerModel
 
-  static loadByAccountAndHost (accountId: number, host: string) {
+  static loadByAccountAndHost (accountId: number, host: string): Bluebird<MServerBlocklist> {
     const query = {
       where: {
         accountId
@@ -104,13 +106,13 @@ export class ServerBlocklistModel extends Model<ServerBlocklistModel> {
 
     return ServerBlocklistModel
       .scope([ ScopeNames.WITH_ACCOUNT, ScopeNames.WITH_SERVER ])
-      .findAndCountAll(query)
+      .findAndCountAll<MServerBlocklistAccountServer>(query)
       .then(({ rows, count }) => {
         return { total: count, data: rows }
       })
   }
 
-  toFormattedJSON (): ServerBlock {
+  toFormattedJSON (this: MServerBlocklistFormattable): ServerBlock {
     return {
       byAccount: this.ByAccount.toFormattedJSON(),
       blockedServer: this.BlockedServer.toFormattedJSON(),
diff --git a/server/models/server/server.ts b/server/models/server/server.ts
index 1d211f1e0..3b6759b5c 100644
--- a/server/models/server/server.ts
+++ b/server/models/server/server.ts
@@ -2,8 +2,9 @@ import { AllowNull, Column, CreatedAt, Default, HasMany, Is, Model, Table, Updat
 import { isHostValid } from '../../helpers/custom-validators/servers'
 import { ActorModel } from '../activitypub/actor'
 import { throwIfNotValid } from '../utils'
-import { AccountBlocklistModel } from '../account/account-blocklist'
 import { ServerBlocklistModel } from './server-blocklist'
+import * as Bluebird from 'bluebird'
+import { MServer, MServerFormattable } from '@server/typings/models/server'
 
 @Table({
   tableName: 'server',
@@ -50,7 +51,7 @@ export class ServerModel extends Model<ServerModel> {
   })
   BlockedByAccounts: ServerBlocklistModel[]
 
-  static loadByHost (host: string) {
+  static loadByHost (host: string): Bluebird<MServer> {
     const query = {
       where: {
         host
@@ -64,7 +65,7 @@ export class ServerModel extends Model<ServerModel> {
     return this.BlockedByAccounts && this.BlockedByAccounts.length !== 0
   }
 
-  toFormattedJSON () {
+  toFormattedJSON (this: MServerFormattable) {
     return {
       host: this.host
     }
diff --git a/server/models/video/schedule-video-update.ts b/server/models/video/schedule-video-update.ts
index 603d55692..fc2a424aa 100644
--- a/server/models/video/schedule-video-update.ts
+++ b/server/models/video/schedule-video-update.ts
@@ -2,6 +2,7 @@ import { AllowNull, BelongsTo, Column, CreatedAt, Default, ForeignKey, Model, Ta
 import { ScopeNames as VideoScopeNames, VideoModel } from './video'
 import { VideoPrivacy } from '../../../shared/models/videos'
 import { Op, Transaction } from 'sequelize'
+import { MScheduleVideoUpdateFormattable } from '@server/typings/models'
 
 @Table({
   tableName: 'scheduleVideoUpdate',
@@ -96,7 +97,7 @@ export class ScheduleVideoUpdateModel extends Model<ScheduleVideoUpdateModel> {
     return ScheduleVideoUpdateModel.destroy(query)
   }
 
-  toFormattedJSON () {
+  toFormattedJSON (this: MScheduleVideoUpdateFormattable) {
     return {
       updateAt: this.updateAt,
       privacy: this.privacy || undefined
diff --git a/server/models/video/tag.ts b/server/models/video/tag.ts
index 0fc3cfd4c..b110f2a43 100644
--- a/server/models/video/tag.ts
+++ b/server/models/video/tag.ts
@@ -6,6 +6,7 @@ import { throwIfNotValid } from '../utils'
 import { VideoModel } from './video'
 import { VideoTagModel } from './video-tag'
 import { VideoPrivacy, VideoState } from '../../../shared/models/videos'
+import { MTag } from '@server/typings/models'
 
 @Table({
   tableName: 'tag',
@@ -37,10 +38,10 @@ export class TagModel extends Model<TagModel> {
   })
   Videos: VideoModel[]
 
-  static findOrCreateTags (tags: string[], transaction: Transaction) {
-    if (tags === null) return []
+  static findOrCreateTags (tags: string[], transaction: Transaction): Promise<MTag[]> {
+    if (tags === null) return Promise.resolve([])
 
-    const tasks: Bluebird<TagModel>[] = []
+    const tasks: Bluebird<MTag>[] = []
     tags.forEach(tag => {
       const query = {
         where: {
@@ -52,7 +53,7 @@ export class TagModel extends Model<TagModel> {
         transaction
       }
 
-      const promise = TagModel.findOrCreate(query)
+      const promise = TagModel.findOrCreate<MTag>(query)
         .then(([ tagInstance ]) => tagInstance)
       tasks.push(promise)
     })
diff --git a/server/models/video/video-abuse.ts b/server/models/video/video-abuse.ts
index 1ac7919b3..6ef1a915d 100644
--- a/server/models/video/video-abuse.ts
+++ b/server/models/video/video-abuse.ts
@@ -11,6 +11,8 @@ import { getSort, throwIfNotValid } from '../utils'
 import { VideoModel } from './video'
 import { VideoAbuseState } from '../../../shared'
 import { CONSTRAINTS_FIELDS, VIDEO_ABUSE_STATES } from '../../initializers/constants'
+import { MVideoAbuse, MVideoAbuseFormattable, MVideoAbuseVideo } from '../../typings/models'
+import * as Bluebird from 'bluebird'
 
 @Table({
   tableName: 'videoAbuse',
@@ -73,7 +75,7 @@ export class VideoAbuseModel extends Model<VideoAbuseModel> {
   })
   Video: VideoModel
 
-  static loadByIdAndVideoId (id: number, videoId: number) {
+  static loadByIdAndVideoId (id: number, videoId: number): Bluebird<MVideoAbuse> {
     const query = {
       where: {
         id,
@@ -106,7 +108,7 @@ export class VideoAbuseModel extends Model<VideoAbuseModel> {
       })
   }
 
-  toFormattedJSON (): VideoAbuse {
+  toFormattedJSON (this: MVideoAbuseFormattable): VideoAbuse {
     return {
       id: this.id,
       reason: this.reason,
@@ -125,7 +127,7 @@ export class VideoAbuseModel extends Model<VideoAbuseModel> {
     }
   }
 
-  toActivityPubObject (): VideoAbuseObject {
+  toActivityPubObject (this: MVideoAbuseVideo): VideoAbuseObject {
     return {
       type: 'Flag' as 'Flag',
       content: this.reason,
diff --git a/server/models/video/video-blacklist.ts b/server/models/video/video-blacklist.ts
index 22d949da0..b4df6cd6a 100644
--- a/server/models/video/video-blacklist.ts
+++ b/server/models/video/video-blacklist.ts
@@ -1,12 +1,14 @@
 import { AllowNull, BelongsTo, Column, CreatedAt, DataType, Default, ForeignKey, Is, Model, Table, UpdatedAt } from 'sequelize-typescript'
 import { getSortOnModel, SortType, throwIfNotValid } from '../utils'
-import { ScopeNames as VideoModelScopeNames, VideoModel } from './video'
+import { VideoModel } from './video'
 import { ScopeNames as VideoChannelScopeNames, SummaryOptions, 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'
 import { ThumbnailModel } from './thumbnail'
+import * as Bluebird from 'bluebird'
+import { MVideoBlacklist, MVideoBlacklistFormattable } from '@server/typings/models'
 
 @Table({
   tableName: 'videoBlacklist',
@@ -99,7 +101,7 @@ export class VideoBlacklistModel extends Model<VideoBlacklistModel> {
     })
   }
 
-  static loadByVideoId (id: number) {
+  static loadByVideoId (id: number): Bluebird<MVideoBlacklist> {
     const query = {
       where: {
         videoId: id
@@ -109,7 +111,7 @@ export class VideoBlacklistModel extends Model<VideoBlacklistModel> {
     return VideoBlacklistModel.findOne(query)
   }
 
-  toFormattedJSON (): VideoBlacklist {
+  toFormattedJSON (this: MVideoBlacklistFormattable): VideoBlacklist {
     return {
       id: this.id,
       createdAt: this.createdAt,
diff --git a/server/models/video/video-caption.ts b/server/models/video/video-caption.ts
index a01565851..ad5801768 100644
--- a/server/models/video/video-caption.ts
+++ b/server/models/video/video-caption.ts
@@ -21,6 +21,8 @@ import { join } from 'path'
 import { logger } from '../../helpers/logger'
 import { remove } from 'fs-extra'
 import { CONFIG } from '../../initializers/config'
+import * as Bluebird from 'bluebird'
+import { MVideoCaptionFormattable, MVideoCaptionVideo } from '@server/typings/models'
 
 export enum ScopeNames {
   WITH_VIDEO_UUID_AND_REMOTE = 'WITH_VIDEO_UUID_AND_REMOTE'
@@ -30,7 +32,7 @@ export enum ScopeNames {
   [ScopeNames.WITH_VIDEO_UUID_AND_REMOTE]: {
     include: [
       {
-        attributes: [ 'uuid', 'remote' ],
+        attributes: [ 'id', 'uuid', 'remote' ],
         model: VideoModel.unscoped(),
         required: true
       }
@@ -93,7 +95,7 @@ export class VideoCaptionModel extends Model<VideoCaptionModel> {
     return undefined
   }
 
-  static loadByVideoIdAndLanguage (videoId: string | number, language: string) {
+  static loadByVideoIdAndLanguage (videoId: string | number, language: string): Bluebird<MVideoCaptionVideo> {
     const videoInclude = {
       model: VideoModel.unscoped(),
       attributes: [ 'id', 'remote', 'uuid' ],
@@ -122,7 +124,7 @@ export class VideoCaptionModel extends Model<VideoCaptionModel> {
       .then(([ caption ]) => caption)
   }
 
-  static listVideoCaptions (videoId: number) {
+  static listVideoCaptions (videoId: number): Bluebird<MVideoCaptionVideo[]> {
     const query = {
       order: [ [ 'language', 'ASC' ] ] as OrderItem[],
       where: {
@@ -152,7 +154,7 @@ export class VideoCaptionModel extends Model<VideoCaptionModel> {
     return this.Video.remote === false
   }
 
-  toFormattedJSON (): VideoCaption {
+  toFormattedJSON (this: MVideoCaptionFormattable): VideoCaption {
     return {
       language: {
         id: this.language,
@@ -162,15 +164,15 @@ export class VideoCaptionModel extends Model<VideoCaptionModel> {
     }
   }
 
-  getCaptionStaticPath () {
+  getCaptionStaticPath (this: MVideoCaptionFormattable) {
     return join(LAZY_STATIC_PATHS.VIDEO_CAPTIONS, this.getCaptionName())
   }
 
-  getCaptionName () {
+  getCaptionName (this: MVideoCaptionFormattable) {
     return `${this.Video.uuid}-${this.language}.vtt`
   }
 
-  removeCaptionFile () {
+  removeCaptionFile (this: MVideoCaptionFormattable) {
     return remove(CONFIG.STORAGE.CAPTIONS_DIR + this.getCaptionName())
   }
 }
diff --git a/server/models/video/video-change-ownership.ts b/server/models/video/video-change-ownership.ts
index b545a2f8c..f7a351329 100644
--- a/server/models/video/video-change-ownership.ts
+++ b/server/models/video/video-change-ownership.ts
@@ -3,6 +3,8 @@ import { AccountModel } from '../account/account'
 import { ScopeNames as VideoScopeNames, VideoModel } from './video'
 import { VideoChangeOwnership, VideoChangeOwnershipStatus } from '../../../shared/models/videos'
 import { getSort } from '../utils'
+import { MVideoChangeOwnershipFormattable, MVideoChangeOwnershipFull } from '@server/typings/models/video/video-change-ownership'
+import * as Bluebird from 'bluebird'
 
 enum ScopeNames {
   WITH_ACCOUNTS = 'WITH_ACCOUNTS',
@@ -108,16 +110,16 @@ export class VideoChangeOwnershipModel extends Model<VideoChangeOwnershipModel>
 
     return Promise.all([
       VideoChangeOwnershipModel.scope(ScopeNames.WITH_ACCOUNTS).count(query),
-      VideoChangeOwnershipModel.scope([ ScopeNames.WITH_ACCOUNTS, ScopeNames.WITH_VIDEO ]).findAll(query)
+      VideoChangeOwnershipModel.scope([ ScopeNames.WITH_ACCOUNTS, ScopeNames.WITH_VIDEO ]).findAll<MVideoChangeOwnershipFull>(query)
     ]).then(([ count, rows ]) => ({ total: count, data: rows }))
   }
 
-  static load (id: number) {
+  static load (id: number): Bluebird<MVideoChangeOwnershipFull> {
     return VideoChangeOwnershipModel.scope([ ScopeNames.WITH_ACCOUNTS, ScopeNames.WITH_VIDEO ])
                                     .findByPk(id)
   }
 
-  toFormattedJSON (): VideoChangeOwnership {
+  toFormattedJSON (this: MVideoChangeOwnershipFormattable): VideoChangeOwnership {
     return {
       id: this.id,
       status: this.status,
diff --git a/server/models/video/video-channel.ts b/server/models/video/video-channel.ts
index 6241a75a3..7178631b4 100644
--- a/server/models/video/video-channel.ts
+++ b/server/models/video/video-channel.ts
@@ -33,6 +33,15 @@ import { ServerModel } from '../server/server'
 import { FindOptions, ModelIndexesOptions, Op } from 'sequelize'
 import { AvatarModel } from '../avatar/avatar'
 import { VideoPlaylistModel } from './video-playlist'
+import * as Bluebird from 'bluebird'
+import {
+  MChannelAccountDefault,
+  MChannelActor,
+  MChannelActorAccountDefaultVideos,
+  MChannelAP,
+  MChannelFormattable,
+  MChannelSummaryFormattable
+} from '../../typings/models/video'
 
 // FIXME: Define indexes here because there is an issue with TS and Sequelize.literal when called directly in the annotation
 const indexes: ModelIndexesOptions[] = [
@@ -47,7 +56,7 @@ const indexes: ModelIndexesOptions[] = [
 ]
 
 export enum ScopeNames {
-  AVAILABLE_FOR_LIST = 'AVAILABLE_FOR_LIST',
+  FOR_API = 'FOR_API',
   WITH_ACCOUNT = 'WITH_ACCOUNT',
   WITH_ACTOR = 'WITH_ACTOR',
   WITH_VIDEOS = 'WITH_VIDEOS',
@@ -74,10 +83,10 @@ export type SummaryOptions = {
 @Scopes(() => ({
   [ScopeNames.SUMMARY]: (options: SummaryOptions = {}) => {
     const base: FindOptions = {
-      attributes: [ 'name', 'description', 'id', 'actorId' ],
+      attributes: [ 'id', 'name', 'description', 'actorId' ],
       include: [
         {
-          attributes: [ 'preferredUsername', 'url', 'serverId', 'avatarId' ],
+          attributes: [ 'id', 'preferredUsername', 'url', 'serverId', 'avatarId' ],
           model: ActorModel.unscoped(),
           required: true,
           include: [
@@ -106,7 +115,7 @@ export type SummaryOptions = {
 
     return base
   },
-  [ScopeNames.AVAILABLE_FOR_LIST]: (options: AvailableForListOptions) => {
+  [ScopeNames.FOR_API]: (options: AvailableForListOptions) => {
     // Only list local channels OR channels that are on an instance followed by actorId
     const inQueryInstanceFollow = buildServerIdsFollowedBy(options.actorId)
 
@@ -268,7 +277,7 @@ export class VideoChannelModel extends Model<VideoChannelModel> {
     }
 
     const scopes = {
-      method: [ ScopeNames.AVAILABLE_FOR_LIST, { actorId } as AvailableForListOptions ]
+      method: [ ScopeNames.FOR_API, { actorId } as AvailableForListOptions ]
     }
     return VideoChannelModel
       .scope(scopes)
@@ -278,7 +287,7 @@ export class VideoChannelModel extends Model<VideoChannelModel> {
       })
   }
 
-  static listLocalsForSitemap (sort: string) {
+  static listLocalsForSitemap (sort: string): Bluebird<MChannelActor[]> {
     const query = {
       attributes: [ ],
       offset: 0,
@@ -331,7 +340,7 @@ export class VideoChannelModel extends Model<VideoChannelModel> {
     }
 
     const scopes = {
-      method: [ ScopeNames.AVAILABLE_FOR_LIST, { actorId: options.actorId } as AvailableForListOptions ]
+      method: [ ScopeNames.FOR_API, { actorId: options.actorId } as AvailableForListOptions ]
     }
     return VideoChannelModel
       .scope(scopes)
@@ -369,13 +378,13 @@ export class VideoChannelModel extends Model<VideoChannelModel> {
       })
   }
 
-  static loadByIdAndPopulateAccount (id: number) {
+  static loadByIdAndPopulateAccount (id: number): Bluebird<MChannelAccountDefault> {
     return VideoChannelModel.unscoped()
       .scope([ ScopeNames.WITH_ACTOR, ScopeNames.WITH_ACCOUNT ])
       .findByPk(id)
   }
 
-  static loadByIdAndAccount (id: number, accountId: number) {
+  static loadByIdAndAccount (id: number, accountId: number): Bluebird<MChannelAccountDefault> {
     const query = {
       where: {
         id,
@@ -388,13 +397,13 @@ export class VideoChannelModel extends Model<VideoChannelModel> {
       .findOne(query)
   }
 
-  static loadAndPopulateAccount (id: number) {
+  static loadAndPopulateAccount (id: number): Bluebird<MChannelAccountDefault> {
     return VideoChannelModel.unscoped()
       .scope([ ScopeNames.WITH_ACTOR, ScopeNames.WITH_ACCOUNT ])
       .findByPk(id)
   }
 
-  static loadByUrlAndPopulateAccount (url: string) {
+  static loadByUrlAndPopulateAccount (url: string): Bluebird<MChannelAccountDefault> {
     const query = {
       include: [
         {
@@ -420,7 +429,7 @@ export class VideoChannelModel extends Model<VideoChannelModel> {
     return VideoChannelModel.loadByNameAndHostAndPopulateAccount(name, host)
   }
 
-  static loadLocalByNameAndPopulateAccount (name: string) {
+  static loadLocalByNameAndPopulateAccount (name: string): Bluebird<MChannelAccountDefault> {
     const query = {
       include: [
         {
@@ -439,7 +448,7 @@ export class VideoChannelModel extends Model<VideoChannelModel> {
       .findOne(query)
   }
 
-  static loadByNameAndHostAndPopulateAccount (name: string, host: string) {
+  static loadByNameAndHostAndPopulateAccount (name: string, host: string): Bluebird<MChannelAccountDefault> {
     const query = {
       include: [
         {
@@ -464,7 +473,7 @@ export class VideoChannelModel extends Model<VideoChannelModel> {
       .findOne(query)
   }
 
-  static loadAndPopulateAccountAndVideos (id: number) {
+  static loadAndPopulateAccountAndVideos (id: number): Bluebird<MChannelActorAccountDefaultVideos> {
     const options = {
       include: [
         VideoModel
@@ -476,7 +485,20 @@ export class VideoChannelModel extends Model<VideoChannelModel> {
       .findByPk(id, options)
   }
 
-  toFormattedJSON (): VideoChannel {
+  toFormattedSummaryJSON (this: MChannelSummaryFormattable): VideoChannelSummary {
+    const actor = this.Actor.toFormattedSummaryJSON()
+
+    return {
+      id: this.id,
+      name: actor.name,
+      displayName: this.getDisplayName(),
+      url: actor.url,
+      host: actor.host,
+      avatar: actor.avatar
+    }
+  }
+
+  toFormattedJSON (this: MChannelFormattable): VideoChannel {
     const actor = this.Actor.toFormattedJSON()
     const videoChannel = {
       id: this.id,
@@ -494,20 +516,7 @@ export class VideoChannelModel extends Model<VideoChannelModel> {
     return Object.assign(actor, videoChannel)
   }
 
-  toFormattedSummaryJSON (): VideoChannelSummary {
-    const actor = this.Actor.toFormattedJSON()
-
-    return {
-      id: this.id,
-      name: actor.name,
-      displayName: this.getDisplayName(),
-      url: actor.url,
-      host: actor.host,
-      avatar: actor.avatar
-    }
-  }
-
-  toActivityPubObject (): ActivityPubActor {
+  toActivityPubObject (this: MChannelAP): ActivityPubActor {
     const obj = this.Actor.toActivityPubObject(this.name, 'VideoChannel')
 
     return Object.assign(obj, {
diff --git a/server/models/video/video-comment.ts b/server/models/video/video-comment.ts
index 58b75510d..2e4220434 100644
--- a/server/models/video/video-comment.ts
+++ b/server/models/video/video-comment.ts
@@ -1,36 +1,32 @@
-import {
-  AllowNull,
-  BeforeDestroy,
-  BelongsTo,
-  Column,
-  CreatedAt,
-  DataType,
-  ForeignKey,
-  Is,
-  Model,
-  Scopes,
-  Table,
-  UpdatedAt
-} from 'sequelize-typescript'
+import { AllowNull, BelongsTo, Column, CreatedAt, DataType, ForeignKey, Is, Model, Scopes, Table, UpdatedAt } from 'sequelize-typescript'
 import { ActivityTagObject } from '../../../shared/models/activitypub/objects/common-objects'
 import { VideoCommentObject } from '../../../shared/models/activitypub/objects/video-comment-object'
 import { VideoComment } from '../../../shared/models/videos/video-comment.model'
 import { isActivityPubUrlValid } from '../../helpers/custom-validators/activitypub/misc'
 import { CONSTRAINTS_FIELDS, WEBSERVER } from '../../initializers/constants'
-import { sendDeleteVideoComment } from '../../lib/activitypub/send'
 import { AccountModel } from '../account/account'
 import { ActorModel } from '../activitypub/actor'
-import { AvatarModel } from '../avatar/avatar'
-import { ServerModel } from '../server/server'
 import { buildBlockedAccountSQL, buildLocalAccountIdsIn, getSort, throwIfNotValid } from '../utils'
 import { VideoModel } from './video'
 import { VideoChannelModel } from './video-channel'
 import { getServerActor } from '../../helpers/utils'
-import { UserModel } from '../account/user'
 import { actorNameAlphabet } from '../../helpers/custom-validators/activitypub/actor'
 import { regexpCapture } from '../../helpers/regexp'
 import { uniq } from 'lodash'
-import { FindOptions, literal, Op, Order, ScopeOptions, Sequelize, Transaction } from 'sequelize'
+import { FindOptions, Op, Order, ScopeOptions, Sequelize, Transaction } from 'sequelize'
+import * as Bluebird from 'bluebird'
+import {
+  MComment,
+  MCommentAP,
+  MCommentFormattable,
+  MCommentId,
+  MCommentOwner,
+  MCommentOwnerReplyVideoLight,
+  MCommentOwnerVideo,
+  MCommentOwnerVideoFeed,
+  MCommentOwnerVideoReply
+} from '../../typings/models/video'
+import { MUserAccountId } from '@server/typings/models'
 
 enum ScopeNames {
   WITH_ACCOUNT = 'WITH_ACCOUNT',
@@ -68,22 +64,7 @@ enum ScopeNames {
   [ScopeNames.WITH_ACCOUNT]: {
     include: [
       {
-        model: AccountModel,
-        include: [
-          {
-            model: ActorModel,
-            include: [
-              {
-                model: ServerModel,
-                required: false
-              },
-              {
-                model: AvatarModel,
-                required: false
-              }
-            ]
-          }
-        ]
+        model: AccountModel
       }
     ]
   },
@@ -102,22 +83,12 @@ enum ScopeNames {
         required: true,
         include: [
           {
-            model: VideoChannelModel.unscoped(),
+            model: VideoChannelModel,
             required: true,
             include: [
               {
-                model: ActorModel,
-                required: true
-              },
-              {
                 model: AccountModel,
-                required: true,
-                include: [
-                  {
-                    model: ActorModel,
-                    required: true
-                  }
-                ]
+                required: true
               }
             ]
           }
@@ -212,7 +183,7 @@ export class VideoCommentModel extends Model<VideoCommentModel> {
   })
   Account: AccountModel
 
-  static loadById (id: number, t?: Transaction) {
+  static loadById (id: number, t?: Transaction): Bluebird<MComment> {
     const query: FindOptions = {
       where: {
         id
@@ -224,7 +195,7 @@ export class VideoCommentModel extends Model<VideoCommentModel> {
     return VideoCommentModel.findOne(query)
   }
 
-  static loadByIdAndPopulateVideoAndAccountAndReply (id: number, t?: Transaction) {
+  static loadByIdAndPopulateVideoAndAccountAndReply (id: number, t?: Transaction): Bluebird<MCommentOwnerVideoReply> {
     const query: FindOptions = {
       where: {
         id
@@ -238,7 +209,7 @@ export class VideoCommentModel extends Model<VideoCommentModel> {
       .findOne(query)
   }
 
-  static loadByUrlAndPopulateAccountAndVideo (url: string, t?: Transaction) {
+  static loadByUrlAndPopulateAccountAndVideo (url: string, t?: Transaction): Bluebird<MCommentOwnerVideo> {
     const query: FindOptions = {
       where: {
         url
@@ -250,7 +221,7 @@ export class VideoCommentModel extends Model<VideoCommentModel> {
     return VideoCommentModel.scope([ ScopeNames.WITH_ACCOUNT, ScopeNames.WITH_VIDEO ]).findOne(query)
   }
 
-  static loadByUrlAndPopulateReplyAndVideoUrlAndAccount (url: string, t?: Transaction) {
+  static loadByUrlAndPopulateReplyAndVideoUrlAndAccount (url: string, t?: Transaction): Bluebird<MCommentOwnerReplyVideoLight> {
     const query: FindOptions = {
       where: {
         url
@@ -273,7 +244,7 @@ export class VideoCommentModel extends Model<VideoCommentModel> {
     start: number,
     count: number,
     sort: string,
-    user?: UserModel
+    user?: MUserAccountId
   }) {
     const { videoId, start, count, sort, user } = parameters
 
@@ -314,7 +285,7 @@ export class VideoCommentModel extends Model<VideoCommentModel> {
   static async listThreadCommentsForApi (parameters: {
     videoId: number,
     threadId: number,
-    user?: UserModel
+    user?: MUserAccountId
   }) {
     const { videoId, threadId, user } = parameters
 
@@ -353,7 +324,7 @@ export class VideoCommentModel extends Model<VideoCommentModel> {
       })
   }
 
-  static listThreadParentComments (comment: VideoCommentModel, t: Transaction, order: 'ASC' | 'DESC' = 'ASC') {
+  static listThreadParentComments (comment: MCommentId, t: Transaction, order: 'ASC' | 'DESC' = 'ASC'): Bluebird<MCommentOwner[]> {
     const query = {
       order: [ [ 'createdAt', order ] ] as Order,
       where: {
@@ -389,10 +360,10 @@ export class VideoCommentModel extends Model<VideoCommentModel> {
       transaction: t
     }
 
-    return VideoCommentModel.findAndCountAll(query)
+    return VideoCommentModel.findAndCountAll<MComment>(query)
   }
 
-  static listForFeed (start: number, count: number, videoId?: number) {
+  static listForFeed (start: number, count: number, videoId?: number): Bluebird<MCommentOwnerVideoFeed[]> {
     const query = {
       order: [ [ 'createdAt', 'DESC' ] ] as Order,
       offset: start,
@@ -506,7 +477,7 @@ export class VideoCommentModel extends Model<VideoCommentModel> {
     return uniq(result)
   }
 
-  toFormattedJSON () {
+  toFormattedJSON (this: MCommentFormattable) {
     return {
       id: this.id,
       url: this.url,
@@ -521,7 +492,7 @@ export class VideoCommentModel extends Model<VideoCommentModel> {
     } as VideoComment
   }
 
-  toActivityPubObject (threadParentComments: VideoCommentModel[]): VideoCommentObject {
+  toActivityPubObject (this: MCommentAP, threadParentComments: MCommentOwner[]): VideoCommentObject {
     let inReplyTo: string
     // New thread, so in AS we reply to the video
     if (this.inReplyToCommentId === null) {
diff --git a/server/models/video/video-file.ts b/server/models/video/video-file.ts
index 05c490759..6304f741c 100644
--- a/server/models/video/video-file.ts
+++ b/server/models/video/video-file.ts
@@ -25,6 +25,7 @@ import { VideoRedundancyModel } from '../redundancy/video-redundancy'
 import { VideoStreamingPlaylistModel } from './video-streaming-playlist'
 import { FindOptions, QueryTypes, Transaction } from 'sequelize'
 import { MIMETYPES } from '../../initializers/constants'
+import { MVideoFile } from '@server/typings/models'
 
 @Table({
   tableName: 'videoFile',
@@ -166,7 +167,7 @@ export class VideoFileModel extends Model<VideoFileModel> {
     return !!MIMETYPES.AUDIO.EXT_MIMETYPE[this.extname]
   }
 
-  hasSameUniqueKeysThan (other: VideoFileModel) {
+  hasSameUniqueKeysThan (other: MVideoFile) {
     return this.fps === other.fps &&
       this.resolution === other.resolution &&
       this.videoId === other.videoId
diff --git a/server/models/video/video-format-utils.ts b/server/models/video/video-format-utils.ts
index 284539def..2987aa780 100644
--- a/server/models/video/video-format-utils.ts
+++ b/server/models/video/video-format-utils.ts
@@ -1,6 +1,5 @@
 import { Video, VideoDetails, VideoFile } from '../../../shared/models/videos'
 import { VideoModel } from './video'
-import { VideoFileModel } from './video-file'
 import {
   ActivityPlaylistInfohashesObject,
   ActivityPlaylistSegmentHashesObject,
@@ -17,7 +16,9 @@ import {
 } from '../../lib/activitypub'
 import { isArray } from '../../helpers/custom-validators/misc'
 import { VideoStreamingPlaylist } from '../../../shared/models/videos/video-streaming-playlist.model'
-import { VideoStreamingPlaylistModel } from './video-streaming-playlist'
+import { MStreamingPlaylistRedundanciesOpt, MVideo, MVideoAP, MVideoFormattable, MVideoFormattableDetails } from '../../typings/models'
+import { MStreamingPlaylistRedundancies } from '../../typings/models/video/video-streaming-playlist'
+import { MVideoFileRedundanciesOpt } from '../../typings/models/video/video-file'
 
 export type VideoFormattingJSONOptions = {
   completeDescription?: boolean
@@ -28,7 +29,7 @@ export type VideoFormattingJSONOptions = {
     blacklistInfo?: boolean
   }
 }
-function videoModelToFormattedJSON (video: VideoModel, options?: VideoFormattingJSONOptions): Video {
+function videoModelToFormattedJSON (video: MVideoFormattable, options?: VideoFormattingJSONOptions): Video {
   const userHistory = isArray(video.UserVideoHistories) ? video.UserVideoHistories[0] : undefined
 
   const videoObject: Video = {
@@ -102,7 +103,7 @@ function videoModelToFormattedJSON (video: VideoModel, options?: VideoFormatting
   return videoObject
 }
 
-function videoModelToFormattedDetailsJSON (video: VideoModel): VideoDetails {
+function videoModelToFormattedDetailsJSON (video: MVideoFormattableDetails): VideoDetails {
   const formattedJson = video.toFormattedJSON({
     additionalAttributes: {
       scheduledUpdate: true,
@@ -114,7 +115,7 @@ function videoModelToFormattedDetailsJSON (video: VideoModel): VideoDetails {
 
   const tags = video.Tags ? video.Tags.map(t => t.name) : []
 
-  const streamingPlaylists = streamingPlaylistsModelToFormattedJSON(video, video.VideoStreamingPlaylists)
+  const streamingPlaylists = streamingPlaylistsModelToFormattedJSON(video.VideoStreamingPlaylists)
 
   const detailsJson = {
     support: video.support,
@@ -142,7 +143,7 @@ function videoModelToFormattedDetailsJSON (video: VideoModel): VideoDetails {
   return Object.assign(formattedJson, detailsJson)
 }
 
-function streamingPlaylistsModelToFormattedJSON (video: VideoModel, playlists: VideoStreamingPlaylistModel[]): VideoStreamingPlaylist[] {
+function streamingPlaylistsModelToFormattedJSON (playlists: MStreamingPlaylistRedundanciesOpt[]): VideoStreamingPlaylist[] {
   if (isArray(playlists) === false) return []
 
   return playlists
@@ -161,7 +162,7 @@ function streamingPlaylistsModelToFormattedJSON (video: VideoModel, playlists: V
     })
 }
 
-function videoFilesModelToFormattedJSON (video: VideoModel, videoFiles: VideoFileModel[]): VideoFile[] {
+function videoFilesModelToFormattedJSON (video: MVideo, videoFiles: MVideoFileRedundanciesOpt[]): VideoFile[] {
   const { baseUrlHttp, baseUrlWs } = video.getBaseUrls()
 
   return videoFiles
@@ -189,7 +190,7 @@ function videoFilesModelToFormattedJSON (video: VideoModel, videoFiles: VideoFil
     })
 }
 
-function videoModelToActivityPubObject (video: VideoModel): VideoTorrentObject {
+function videoModelToActivityPubObject (video: MVideoAP): VideoTorrentObject {
   const { baseUrlHttp, baseUrlWs } = video.getBaseUrls()
   if (!video.Tags) video.Tags = []
 
diff --git a/server/models/video/video-import.ts b/server/models/video/video-import.ts
index 480a671c8..af5314ce9 100644
--- a/server/models/video/video-import.ts
+++ b/server/models/video/video-import.ts
@@ -20,6 +20,8 @@ import { isVideoImportStateValid, isVideoImportTargetUrlValid } from '../../help
 import { VideoImport, VideoImportState } from '../../../shared'
 import { isVideoMagnetUriValid } from '../../helpers/custom-validators/videos'
 import { UserModel } from '../account/user'
+import * as Bluebird from 'bluebird'
+import { MVideoImportDefault, MVideoImportFormattable } from '@server/typings/models/video/video-import'
 
 @DefaultScope(() => ({
   include: [
@@ -28,7 +30,11 @@ import { UserModel } from '../account/user'
       required: true
     },
     {
-      model: VideoModel.scope([ VideoModelScopeNames.WITH_ACCOUNT_DETAILS, VideoModelScopeNames.WITH_TAGS]),
+      model: VideoModel.scope([
+        VideoModelScopeNames.WITH_ACCOUNT_DETAILS,
+        VideoModelScopeNames.WITH_TAGS,
+        VideoModelScopeNames.WITH_THUMBNAILS
+      ]),
       required: false
     }
   ]
@@ -114,7 +120,7 @@ export class VideoImportModel extends Model<VideoImportModel> {
     return undefined
   }
 
-  static loadAndPopulateVideo (id: number) {
+  static loadAndPopulateVideo (id: number): Bluebird<MVideoImportDefault> {
     return VideoImportModel.findByPk(id)
   }
 
@@ -135,7 +141,7 @@ export class VideoImportModel extends Model<VideoImportModel> {
       }
     }
 
-    return VideoImportModel.findAndCountAll(query)
+    return VideoImportModel.findAndCountAll<MVideoImportDefault>(query)
                            .then(({ rows, count }) => {
                              return {
                                data: rows,
@@ -148,7 +154,7 @@ export class VideoImportModel extends Model<VideoImportModel> {
     return this.targetUrl || this.magnetUri || this.torrentName
   }
 
-  toFormattedJSON (): VideoImport {
+  toFormattedJSON (this: MVideoImportFormattable): VideoImport {
     const videoFormatOptions = {
       completeDescription: true,
       additionalAttributes: { state: true, waitTranscoding: true, scheduledUpdate: true }
diff --git a/server/models/video/video-playlist-element.ts b/server/models/video/video-playlist-element.ts
index dd7653533..a28021313 100644
--- a/server/models/video/video-playlist-element.ts
+++ b/server/models/video/video-playlist-element.ts
@@ -21,10 +21,18 @@ import { CONSTRAINTS_FIELDS } from '../../initializers/constants'
 import { PlaylistElementObject } from '../../../shared/models/activitypub/objects/playlist-element-object'
 import * as validator from 'validator'
 import { AggregateOptions, Op, ScopeOptions, Sequelize, Transaction } from 'sequelize'
-import { UserModel } from '../account/user'
 import { VideoPlaylistElement, VideoPlaylistElementType } from '../../../shared/models/videos/playlist/video-playlist-element.model'
 import { AccountModel } from '../account/account'
 import { VideoPrivacy } from '../../../shared/models/videos'
+import * as Bluebird from 'bluebird'
+import {
+  MVideoPlaylistElement,
+  MVideoPlaylistElementAP,
+  MVideoPlaylistElementFormattable,
+  MVideoPlaylistElementVideoUrlPlaylistPrivacy,
+  MVideoPlaylistVideoThumbnail
+} from '@server/typings/models/video/video-playlist-element'
+import { MUserAccountId } from '@server/typings/models'
 
 @Table({
   tableName: 'videoPlaylistElement',
@@ -116,7 +124,7 @@ export class VideoPlaylistElementModel extends Model<VideoPlaylistElementModel>
     count: number,
     videoPlaylistId: number,
     serverAccount: AccountModel,
-    user?: UserModel
+    user?: MUserAccountId
   }) {
     const accountIds = [ options.serverAccount.id ]
     const videoScope: (ScopeOptions | string)[] = [
@@ -162,7 +170,7 @@ export class VideoPlaylistElementModel extends Model<VideoPlaylistElementModel>
     ]).then(([ total, data ]) => ({ total, data }))
   }
 
-  static loadByPlaylistAndVideo (videoPlaylistId: number, videoId: number) {
+  static loadByPlaylistAndVideo (videoPlaylistId: number, videoId: number): Bluebird<MVideoPlaylistElement> {
     const query = {
       where: {
         videoPlaylistId,
@@ -173,11 +181,14 @@ export class VideoPlaylistElementModel extends Model<VideoPlaylistElementModel>
     return VideoPlaylistElementModel.findOne(query)
   }
 
-  static loadById (playlistElementId: number) {
+  static loadById (playlistElementId: number): Bluebird<MVideoPlaylistElement> {
     return VideoPlaylistElementModel.findByPk(playlistElementId)
   }
 
-  static loadByPlaylistAndVideoForAP (playlistId: number | string, videoId: number | string) {
+  static loadByPlaylistAndVideoForAP (
+    playlistId: number | string,
+    videoId: number | string
+  ): Bluebird<MVideoPlaylistElementVideoUrlPlaylistPrivacy> {
     const playlistWhere = validator.isUUID('' + playlistId) ? { uuid: playlistId } : { id: playlistId }
     const videoWhere = validator.isUUID('' + videoId) ? { uuid: videoId } : { id: videoId }
 
@@ -218,7 +229,7 @@ export class VideoPlaylistElementModel extends Model<VideoPlaylistElementModel>
       })
   }
 
-  static loadFirstElementWithVideoThumbnail (videoPlaylistId: number) {
+  static loadFirstElementWithVideoThumbnail (videoPlaylistId: number): Bluebird<MVideoPlaylistVideoThumbnail> {
     const query = {
       order: getSort('position'),
       where: {
@@ -290,7 +301,7 @@ export class VideoPlaylistElementModel extends Model<VideoPlaylistElementModel>
     return VideoPlaylistElementModel.increment({ position: by }, query)
   }
 
-  getType (displayNSFW?: boolean, accountId?: number) {
+  getType (this: MVideoPlaylistElementFormattable, displayNSFW?: boolean, accountId?: number) {
     const video = this.Video
 
     if (!video) return VideoPlaylistElementType.DELETED
@@ -306,14 +317,17 @@ export class VideoPlaylistElementModel extends Model<VideoPlaylistElementModel>
     return VideoPlaylistElementType.REGULAR
   }
 
-  getVideoElement (displayNSFW?: boolean, accountId?: number) {
+  getVideoElement (this: MVideoPlaylistElementFormattable, displayNSFW?: boolean, accountId?: number) {
     if (!this.Video) return null
     if (this.getType(displayNSFW, accountId) !== VideoPlaylistElementType.REGULAR) return null
 
     return this.Video.toFormattedJSON()
   }
 
-  toFormattedJSON (options: { displayNSFW?: boolean, accountId?: number } = {}): VideoPlaylistElement {
+  toFormattedJSON (
+    this: MVideoPlaylistElementFormattable,
+    options: { displayNSFW?: boolean, accountId?: number } = {}
+  ): VideoPlaylistElement {
     return {
       id: this.id,
       position: this.position,
@@ -326,7 +340,7 @@ export class VideoPlaylistElementModel extends Model<VideoPlaylistElementModel>
     }
   }
 
-  toActivityPubObject (): PlaylistElementObject {
+  toActivityPubObject (this: MVideoPlaylistElementAP): PlaylistElementObject {
     const base: PlaylistElementObject = {
       id: this.url,
       type: 'PlaylistElement',
diff --git a/server/models/video/video-playlist.ts b/server/models/video/video-playlist.ts
index c8e97c491..278d80ac0 100644
--- a/server/models/video/video-playlist.ts
+++ b/server/models/video/video-playlist.ts
@@ -43,6 +43,15 @@ import { VideoPlaylistType } from '../../../shared/models/videos/playlist/video-
 import { ThumbnailModel } from './thumbnail'
 import { ActivityIconObject } from '../../../shared/models/activitypub/objects'
 import { FindOptions, literal, Op, ScopeOptions, Transaction, WhereOptions } from 'sequelize'
+import * as Bluebird from 'bluebird'
+import {
+  MVideoPlaylistAccountThumbnail, MVideoPlaylistAP,
+  MVideoPlaylistFormattable,
+  MVideoPlaylistFull,
+  MVideoPlaylistFullSummary,
+  MVideoPlaylistIdWithElements
+} from '../../typings/models/video/video-playlist'
+import { MThumbnail } from '../../typings/models/video/thumbnail'
 
 enum ScopeNames {
   AVAILABLE_FOR_LIST = 'AVAILABLE_FOR_LIST',
@@ -332,7 +341,7 @@ export class VideoPlaylistModel extends Model<VideoPlaylistModel> {
                              })
   }
 
-  static listPlaylistIdsOf (accountId: number, videoIds: number[]) {
+  static listPlaylistIdsOf (accountId: number, videoIds: number[]): Bluebird<MVideoPlaylistIdWithElements[]> {
     const query = {
       attributes: [ 'id' ],
       where: {
@@ -368,7 +377,7 @@ export class VideoPlaylistModel extends Model<VideoPlaylistModel> {
       .then(e => !!e)
   }
 
-  static loadWithAccountAndChannelSummary (id: number | string, transaction: Transaction) {
+  static loadWithAccountAndChannelSummary (id: number | string, transaction: Transaction): Bluebird<MVideoPlaylistFullSummary> {
     const where = buildWhereIdOrUUID(id)
 
     const query = {
@@ -381,7 +390,7 @@ export class VideoPlaylistModel extends Model<VideoPlaylistModel> {
       .findOne(query)
   }
 
-  static loadWithAccountAndChannel (id: number | string, transaction: Transaction) {
+  static loadWithAccountAndChannel (id: number | string, transaction: Transaction): Bluebird<MVideoPlaylistFull> {
     const where = buildWhereIdOrUUID(id)
 
     const query = {
@@ -394,7 +403,7 @@ export class VideoPlaylistModel extends Model<VideoPlaylistModel> {
       .findOne(query)
   }
 
-  static loadByUrlAndPopulateAccount (url: string) {
+  static loadByUrlAndPopulateAccount (url: string): Bluebird<MVideoPlaylistAccountThumbnail> {
     const query = {
       where: {
         url
@@ -423,7 +432,7 @@ export class VideoPlaylistModel extends Model<VideoPlaylistModel> {
     return VideoPlaylistModel.update({ privacy: VideoPlaylistPrivacy.PRIVATE, videoChannelId: null }, query)
   }
 
-  async setAndSaveThumbnail (thumbnail: ThumbnailModel, t: Transaction) {
+  async setAndSaveThumbnail (thumbnail: MThumbnail, t: Transaction) {
     thumbnail.videoPlaylistId = this.id
 
     this.Thumbnail = await thumbnail.save({ transaction: t })
@@ -471,7 +480,7 @@ export class VideoPlaylistModel extends Model<VideoPlaylistModel> {
     return isOutdated(this, ACTIVITY_PUB.VIDEO_PLAYLIST_REFRESH_INTERVAL)
   }
 
-  toFormattedJSON (): VideoPlaylist {
+  toFormattedJSON (this: MVideoPlaylistFormattable): VideoPlaylist {
     return {
       id: this.id,
       uuid: this.uuid,
@@ -501,7 +510,7 @@ export class VideoPlaylistModel extends Model<VideoPlaylistModel> {
     }
   }
 
-  toActivityPubObject (page: number, t: Transaction): Promise<PlaylistObject> {
+  toActivityPubObject (this: MVideoPlaylistAP, 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-share.ts b/server/models/video/video-share.ts
index d8ed64557..9019b401a 100644
--- a/server/models/video/video-share.ts
+++ b/server/models/video/video-share.ts
@@ -8,6 +8,8 @@ import { buildLocalActorIdsIn, throwIfNotValid } from '../utils'
 import { VideoModel } from './video'
 import { VideoChannelModel } from './video-channel'
 import { Op, Transaction } from 'sequelize'
+import { MVideoShareActor, MVideoShareFull } from '../../typings/models/video'
+import { MActorDefault } from '../../typings/models'
 
 enum ScopeNames {
   FULL = 'FULL',
@@ -88,7 +90,7 @@ export class VideoShareModel extends Model<VideoShareModel> {
   })
   Video: VideoModel
 
-  static load (actorId: number, videoId: number, t?: Transaction) {
+  static load (actorId: number, videoId: number, t?: Transaction): Bluebird<MVideoShareActor> {
     return VideoShareModel.scope(ScopeNames.WITH_ACTOR).findOne({
       where: {
         actorId,
@@ -98,7 +100,7 @@ export class VideoShareModel extends Model<VideoShareModel> {
     })
   }
 
-  static loadByUrl (url: string, t: Transaction) {
+  static loadByUrl (url: string, t: Transaction): Bluebird<MVideoShareFull> {
     return VideoShareModel.scope(ScopeNames.FULL).findOne({
       where: {
         url
@@ -107,7 +109,7 @@ export class VideoShareModel extends Model<VideoShareModel> {
     })
   }
 
-  static loadActorsByShare (videoId: number, t: Transaction) {
+  static loadActorsByShare (videoId: number, t: Transaction): Bluebird<MActorDefault[]> {
     const query = {
       where: {
         videoId
@@ -122,10 +124,10 @@ export class VideoShareModel extends Model<VideoShareModel> {
     }
 
     return VideoShareModel.scope(ScopeNames.FULL).findAll(query)
-      .then(res => res.map(r => r.Actor))
+      .then((res: MVideoShareFull[]) => res.map(r => r.Actor))
   }
 
-  static loadActorsWhoSharedVideosOf (actorOwnerId: number, t: Transaction): Bluebird<ActorModel[]> {
+  static loadActorsWhoSharedVideosOf (actorOwnerId: number, t: Transaction): Bluebird<MActorDefault[]> {
     const query = {
       attributes: [],
       include: [
@@ -163,7 +165,7 @@ export class VideoShareModel extends Model<VideoShareModel> {
       .then(res => res.map(r => r.Actor))
   }
 
-  static loadActorsByVideoChannel (videoChannelId: number, t: Transaction): Bluebird<ActorModel[]> {
+  static loadActorsByVideoChannel (videoChannelId: number, t: Transaction): Bluebird<MActorDefault[]> {
     const query = {
       attributes: [],
       include: [
diff --git a/server/models/video/video-streaming-playlist.ts b/server/models/video/video-streaming-playlist.ts
index 31dc82c54..0ea90d28c 100644
--- a/server/models/video/video-streaming-playlist.ts
+++ b/server/models/video/video-streaming-playlist.ts
@@ -1,16 +1,16 @@
-import { AllowNull, BelongsTo, Column, CreatedAt, ForeignKey, HasMany, Is, Model, Table, UpdatedAt, DataType } from 'sequelize-typescript'
+import { AllowNull, BelongsTo, Column, CreatedAt, DataType, ForeignKey, HasMany, Is, Model, Table, UpdatedAt } from 'sequelize-typescript'
 import { isVideoFileInfoHashValid } from '../../helpers/custom-validators/videos'
 import { throwIfNotValid } from '../utils'
 import { VideoModel } from './video'
 import { VideoRedundancyModel } from '../redundancy/video-redundancy'
 import { VideoStreamingPlaylistType } from '../../../shared/models/videos/video-streaming-playlist.type'
 import { isActivityPubUrlValid } from '../../helpers/custom-validators/activitypub/misc'
-import { CONSTRAINTS_FIELDS, STATIC_PATHS, P2P_MEDIA_LOADER_PEER_VERSION } from '../../initializers/constants'
-import { VideoFileModel } from './video-file'
+import { CONSTRAINTS_FIELDS, P2P_MEDIA_LOADER_PEER_VERSION, STATIC_PATHS } from '../../initializers/constants'
 import { join } from 'path'
 import { sha1 } from '../../helpers/core-utils'
 import { isArrayOf } from '../../helpers/custom-validators/misc'
-import { QueryTypes, Op } from 'sequelize'
+import { Op, QueryTypes } from 'sequelize'
+import { MStreamingPlaylist, MVideoFile } from '@server/typings/models'
 
 @Table({
   tableName: 'videoStreamingPlaylist',
@@ -91,7 +91,7 @@ export class VideoStreamingPlaylistModel extends Model<VideoStreamingPlaylistMod
               .then(results => results.length === 1)
   }
 
-  static buildP2PMediaLoaderInfoHashes (playlistUrl: string, videoFiles: VideoFileModel[]) {
+  static buildP2PMediaLoaderInfoHashes (playlistUrl: string, videoFiles: MVideoFile[]) {
     const hashes: string[] = []
 
     // https://github.com/Novage/p2p-media-loader/blob/master/p2p-media-loader-core/lib/p2p-media-manager.ts#L115
@@ -165,7 +165,7 @@ export class VideoStreamingPlaylistModel extends Model<VideoStreamingPlaylistMod
     return baseUrlHttp + STATIC_PATHS.REDUNDANCY + this.getStringType() + '/' + this.Video.uuid
   }
 
-  hasSameUniqueKeysThan (other: VideoStreamingPlaylistModel) {
+  hasSameUniqueKeysThan (other: MStreamingPlaylist) {
     return this.type === other.type &&
       this.videoId === other.videoId
   }
diff --git a/server/models/video/video.ts b/server/models/video/video.ts
index b59df397d..ab7b49f1e 100644
--- a/server/models/video/video.ts
+++ b/server/models/video/video.ts
@@ -36,7 +36,7 @@ import {
   Table,
   UpdatedAt
 } from 'sequelize-typescript'
-import { UserRight, VideoPrivacy, VideoResolution, VideoState } from '../../../shared'
+import { UserRight, VideoPrivacy, VideoState } from '../../../shared'
 import { VideoTorrentObject } from '../../../shared/models/activitypub/objects'
 import { Video, VideoDetails, VideoFile } from '../../../shared/models/videos'
 import { VideoFilter } from '../../../shared/models/videos/video-query.type'
@@ -111,7 +111,6 @@ import {
   videoModelToFormattedJSON
 } from './video-format-utils'
 import { UserVideoHistoryModel } from '../account/user-video-history'
-import { UserModel } from '../account/user'
 import { VideoImportModel } from './video-import'
 import { VideoStreamingPlaylistModel } from './video-streaming-playlist'
 import { VideoPlaylistElementModel } from './video-playlist-element'
@@ -120,6 +119,28 @@ import { ThumbnailModel } from './thumbnail'
 import { ThumbnailType } from '../../../shared/models/videos/thumbnail.type'
 import { createTorrentPromise } from '../../helpers/webtorrent'
 import { VideoStreamingPlaylistType } from '../../../shared/models/videos/video-streaming-playlist.type'
+import {
+  MChannel,
+  MChannelAccountDefault,
+  MChannelId,
+  MUserAccountId,
+  MUserId,
+  MVideoAccountLight,
+  MVideoAccountLightBlacklistAllFiles,
+  MVideoAP,
+  MVideoDetails,
+  MVideoFormattable,
+  MVideoFormattableDetails,
+  MVideoForUser,
+  MVideoFullLight,
+  MVideoIdThumbnail,
+  MVideoThumbnail,
+  MVideoWithAllFiles,
+  MVideoWithFile,
+  MVideoWithRights
+} from '../../typings/models'
+import { MVideoFile, MVideoFileRedundanciesOpt } from '../../typings/models/video/video-file'
+import { MThumbnail } from '../../typings/models/video/thumbnail'
 
 // FIXME: Define indexes here because there is an issue with TS and Sequelize.literal when called directly in the annotation
 const indexes: (ModelIndexesOptions & { where?: WhereOptions })[] = [
@@ -232,8 +253,8 @@ export type AvailableForListIDsOptions = {
   videoPlaylistId?: number
 
   trendingDays?: number
-  user?: UserModel,
-  historyOfUser?: UserModel
+  user?: MUserAccountId
+  historyOfUser?: MUserId
 
   baseWhere?: WhereOptions[]
 }
@@ -634,7 +655,7 @@ export type AvailableForListIDsOptions = {
   [ ScopeNames.WITH_BLACKLISTED ]: {
     include: [
       {
-        attributes: [ 'id', 'reason' ],
+        attributes: [ 'id', 'reason', 'unfederated' ],
         model: VideoBlacklistModel,
         required: false
       }
@@ -989,18 +1010,16 @@ export class VideoModel extends Model<VideoModel> {
   VideoCaptions: VideoCaptionModel[]
 
   @BeforeDestroy
-  static async sendDelete (instance: VideoModel, options) {
+  static async sendDelete (instance: MVideoAccountLight, options) {
     if (instance.isOwned()) {
       if (!instance.VideoChannel) {
         instance.VideoChannel = await instance.$get('VideoChannel', {
           include: [
-            {
-              model: AccountModel,
-              include: [ ActorModel ]
-            }
+            ActorModel,
+            AccountModel
           ],
           transaction: options.transaction
-        }) as VideoChannelModel
+        }) as MChannelAccountDefault
       }
 
       return sendDeleteVideo(instance, options.transaction)
@@ -1039,7 +1058,7 @@ export class VideoModel extends Model<VideoModel> {
     return undefined
   }
 
-  static listLocal () {
+  static listLocal (): Bluebird<MVideoWithAllFiles[]> {
     const query = {
       where: {
         remote: false
@@ -1159,7 +1178,7 @@ export class VideoModel extends Model<VideoModel> {
     })
   }
 
-  static listUserVideosForApi (accountId: number, start: number, count: number, sort: string, withFiles = false) {
+  static listUserVideosForApi (accountId: number, start: number, count: number, sort: string) {
     function buildBaseQuery (): FindOptions {
       return {
         offset: start,
@@ -1192,16 +1211,9 @@ export class VideoModel extends Model<VideoModel> {
       ScopeNames.WITH_THUMBNAILS
     ]
 
-    if (withFiles === true) {
-      findQuery.include.push({
-        model: VideoFileModel.unscoped(),
-        required: true
-      })
-    }
-
     return Promise.all([
       VideoModel.count(countQuery),
-      VideoModel.scope(findScopes).findAll(findQuery)
+      VideoModel.scope(findScopes).findAll<MVideoForUser>(findQuery)
     ]).then(([ count, rows ]) => {
       return {
         data: rows,
@@ -1228,8 +1240,8 @@ export class VideoModel extends Model<VideoModel> {
     followerActorId?: number
     videoPlaylistId?: number,
     trendingDays?: number,
-    user?: UserModel,
-    historyOfUser?: UserModel
+    user?: MUserAccountId,
+    historyOfUser?: MUserId
   }, countVideos = true) {
     if (options.filter && options.filter === 'all-local' && !options.user.hasRight(UserRight.SEE_ALL_VIDEOS)) {
       throw new Error('Try to filter all-local but no user has not the see all videos right')
@@ -1294,7 +1306,7 @@ export class VideoModel extends Model<VideoModel> {
     tagsAllOf?: string[]
     durationMin?: number // seconds
     durationMax?: number // seconds
-    user?: UserModel,
+    user?: MUserAccountId,
     filter?: VideoFilter
   }) {
     const whereAnd = []
@@ -1387,7 +1399,7 @@ export class VideoModel extends Model<VideoModel> {
     return VideoModel.getAvailableForApi(query, queryOptions)
   }
 
-  static load (id: number | string, t?: Transaction) {
+  static load (id: number | string, t?: Transaction): Bluebird<MVideoThumbnail> {
     const where = buildWhereIdOrUUID(id)
     const options = {
       where,
@@ -1397,7 +1409,7 @@ export class VideoModel extends Model<VideoModel> {
     return VideoModel.scope(ScopeNames.WITH_THUMBNAILS).findOne(options)
   }
 
-  static loadWithRights (id: number | string, t?: Transaction) {
+  static loadWithRights (id: number | string, t?: Transaction): Bluebird<MVideoWithRights> {
     const where = buildWhereIdOrUUID(id)
     const options = {
       where,
@@ -1411,7 +1423,7 @@ export class VideoModel extends Model<VideoModel> {
     ]).findOne(options)
   }
 
-  static loadOnlyId (id: number | string, t?: Transaction) {
+  static loadOnlyId (id: number | string, t?: Transaction): Bluebird<MVideoIdThumbnail> {
     const where = buildWhereIdOrUUID(id)
 
     const options = {
@@ -1423,7 +1435,7 @@ export class VideoModel extends Model<VideoModel> {
     return VideoModel.scope(ScopeNames.WITH_THUMBNAILS).findOne(options)
   }
 
-  static loadWithFiles (id: number | string, t?: Transaction, logging?: boolean) {
+  static loadWithFiles (id: number | string, t?: Transaction, logging?: boolean): Bluebird<MVideoWithAllFiles> {
     const where = buildWhereIdOrUUID(id)
 
     const query = {
@@ -1439,7 +1451,7 @@ export class VideoModel extends Model<VideoModel> {
     ]).findOne(query)
   }
 
-  static loadByUUID (uuid: string) {
+  static loadByUUID (uuid: string): Bluebird<MVideoThumbnail> {
     const options = {
       where: {
         uuid
@@ -1449,7 +1461,7 @@ export class VideoModel extends Model<VideoModel> {
     return VideoModel.scope(ScopeNames.WITH_THUMBNAILS).findOne(options)
   }
 
-  static loadByUrl (url: string, transaction?: Transaction) {
+  static loadByUrl (url: string, transaction?: Transaction): Bluebird<MVideoThumbnail> {
     const query: FindOptions = {
       where: {
         url
@@ -1460,7 +1472,7 @@ export class VideoModel extends Model<VideoModel> {
     return VideoModel.scope(ScopeNames.WITH_THUMBNAILS).findOne(query)
   }
 
-  static loadByUrlAndPopulateAccount (url: string, transaction?: Transaction) {
+  static loadByUrlAndPopulateAccount (url: string, transaction?: Transaction): Bluebird<MVideoAccountLightBlacklistAllFiles> {
     const query: FindOptions = {
       where: {
         url
@@ -1472,11 +1484,12 @@ export class VideoModel extends Model<VideoModel> {
       ScopeNames.WITH_ACCOUNT_DETAILS,
       ScopeNames.WITH_FILES,
       ScopeNames.WITH_STREAMING_PLAYLISTS,
-      ScopeNames.WITH_THUMBNAILS
+      ScopeNames.WITH_THUMBNAILS,
+      ScopeNames.WITH_BLACKLISTED
     ]).findOne(query)
   }
 
-  static loadAndPopulateAccountAndServerAndTags (id: number | string, t?: Transaction, userId?: number) {
+  static loadAndPopulateAccountAndServerAndTags (id: number | string, t?: Transaction, userId?: number): Bluebird<MVideoFullLight> {
     const where = buildWhereIdOrUUID(id)
 
     const options = {
@@ -1508,7 +1521,7 @@ export class VideoModel extends Model<VideoModel> {
     id: number | string,
     t?: Transaction,
     userId?: number
-  }) {
+  }): Bluebird<MVideoDetails> {
     const { id, t, userId } = parameters
     const where = buildWhereIdOrUUID(id)
 
@@ -1586,7 +1599,7 @@ export class VideoModel extends Model<VideoModel> {
                      .then(results => results.length === 1)
   }
 
-  static bulkUpdateSupportField (videoChannel: VideoChannelModel, t: Transaction) {
+  static bulkUpdateSupportField (videoChannel: MChannel, t: Transaction) {
     const options = {
       where: {
         channelId: videoChannel.id
@@ -1597,7 +1610,7 @@ export class VideoModel extends Model<VideoModel> {
     return VideoModel.update({ support: videoChannel.support }, options)
   }
 
-  static getAllIdsFromChannel (videoChannel: VideoChannelModel) {
+  static getAllIdsFromChannel (videoChannel: MChannelId): Bluebird<number[]> {
     const query = {
       attributes: [ 'id' ],
       where: {
@@ -1756,20 +1769,20 @@ export class VideoModel extends Model<VideoModel> {
       this.VideoChannel.Account.isBlocked()
   }
 
-  getOriginalFile () {
+  getOriginalFile <T extends MVideoWithFile> (this: T) {
     if (Array.isArray(this.VideoFiles) === false) return undefined
 
     // The original file is the file that have the higher resolution
     return maxBy(this.VideoFiles, file => file.resolution)
   }
 
-  getFile (resolution: number) {
+  getFile <T extends MVideoWithFile> (this: T, resolution: number) {
     if (Array.isArray(this.VideoFiles) === false) return undefined
 
     return this.VideoFiles.find(f => f.resolution === resolution)
   }
 
-  async addAndSaveThumbnail (thumbnail: ThumbnailModel, transaction: Transaction) {
+  async addAndSaveThumbnail (thumbnail: MThumbnail, transaction: Transaction) {
     thumbnail.videoId = this.id
 
     const savedThumbnail = await thumbnail.save({ transaction })
@@ -1782,7 +1795,7 @@ export class VideoModel extends Model<VideoModel> {
     this.Thumbnails.push(savedThumbnail)
   }
 
-  getVideoFilename (videoFile: VideoFileModel) {
+  getVideoFilename (videoFile: MVideoFile) {
     return this.uuid + '-' + videoFile.resolution + videoFile.extname
   }
 
@@ -1806,7 +1819,7 @@ export class VideoModel extends Model<VideoModel> {
     return this.Thumbnails.find(t => t.type === ThumbnailType.PREVIEW)
   }
 
-  getTorrentFileName (videoFile: VideoFileModel) {
+  getTorrentFileName (videoFile: MVideoFile) {
     const extension = '.torrent'
     return this.uuid + '-' + videoFile.resolution + extension
   }
@@ -1815,15 +1828,15 @@ export class VideoModel extends Model<VideoModel> {
     return this.remote === false
   }
 
-  getTorrentFilePath (videoFile: VideoFileModel) {
+  getTorrentFilePath (videoFile: MVideoFile) {
     return join(CONFIG.STORAGE.TORRENTS_DIR, this.getTorrentFileName(videoFile))
   }
 
-  getVideoFilePath (videoFile: VideoFileModel) {
+  getVideoFilePath (videoFile: MVideoFile) {
     return join(CONFIG.STORAGE.VIDEOS_DIR, this.getVideoFilename(videoFile))
   }
 
-  async createTorrentAndSetInfoHash (videoFile: VideoFileModel) {
+  async createTorrentAndSetInfoHash (videoFile: MVideoFile) {
     const options = {
       // Keep the extname, it's used by the client to stream the file inside a web browser
       name: `${this.name} ${videoFile.resolution}p${videoFile.extname}`,
@@ -1869,11 +1882,11 @@ export class VideoModel extends Model<VideoModel> {
     return join(LAZY_STATIC_PATHS.PREVIEWS, preview.filename)
   }
 
-  toFormattedJSON (options?: VideoFormattingJSONOptions): Video {
+  toFormattedJSON (this: MVideoFormattable, options?: VideoFormattingJSONOptions): Video {
     return videoModelToFormattedJSON(this, options)
   }
 
-  toFormattedDetailsJSON (): VideoDetails {
+  toFormattedDetailsJSON (this: MVideoFormattableDetails): VideoDetails {
     return videoModelToFormattedDetailsJSON(this)
   }
 
@@ -1881,7 +1894,7 @@ export class VideoModel extends Model<VideoModel> {
     return videoFilesModelToFormattedJSON(this, this.VideoFiles)
   }
 
-  toActivityPubObject (): VideoTorrentObject {
+  toActivityPubObject (this: MVideoAP): VideoTorrentObject {
     return videoModelToActivityPubObject(this)
   }
 
@@ -1908,7 +1921,7 @@ export class VideoModel extends Model<VideoModel> {
     return this.VideoStreamingPlaylists.find(p => p.type === VideoStreamingPlaylistType.HLS)
   }
 
-  removeFile (videoFile: VideoFileModel, isRedundancy = false) {
+  removeFile (videoFile: MVideoFile, isRedundancy = false) {
     const baseDir = isRedundancy ? CONFIG.STORAGE.REDUNDANCY_DIR : CONFIG.STORAGE.VIDEOS_DIR
 
     const filePath = join(baseDir, this.getVideoFilename(videoFile))
@@ -1916,7 +1929,7 @@ export class VideoModel extends Model<VideoModel> {
       .catch(err => logger.warn('Cannot delete file %s.', filePath, { err }))
   }
 
-  removeTorrent (videoFile: VideoFileModel) {
+  removeTorrent (videoFile: MVideoFile) {
     const torrentPath = join(CONFIG.STORAGE.TORRENTS_DIR, this.getTorrentFileName(videoFile))
     return remove(torrentPath)
       .catch(err => logger.warn('Cannot delete torrent %s.', torrentPath, { err }))
@@ -1957,7 +1970,7 @@ export class VideoModel extends Model<VideoModel> {
     return { baseUrlHttp, baseUrlWs }
   }
 
-  generateMagnetUri (videoFile: VideoFileModel, baseUrlHttp: string, baseUrlWs: string) {
+  generateMagnetUri (videoFile: MVideoFileRedundanciesOpt, baseUrlHttp: string, baseUrlWs: string) {
     const xs = this.getTorrentUrl(videoFile, baseUrlHttp)
     const announce = this.getTrackerUrls(baseUrlHttp, baseUrlWs)
     let urlList = [ this.getVideoFileUrl(videoFile, baseUrlHttp) ]
@@ -1980,27 +1993,27 @@ export class VideoModel extends Model<VideoModel> {
     return [ baseUrlWs + '/tracker/socket', baseUrlHttp + '/tracker/announce' ]
   }
 
-  getTorrentUrl (videoFile: VideoFileModel, baseUrlHttp: string) {
+  getTorrentUrl (videoFile: MVideoFile, baseUrlHttp: string) {
     return baseUrlHttp + STATIC_PATHS.TORRENTS + this.getTorrentFileName(videoFile)
   }
 
-  getTorrentDownloadUrl (videoFile: VideoFileModel, baseUrlHttp: string) {
+  getTorrentDownloadUrl (videoFile: MVideoFile, baseUrlHttp: string) {
     return baseUrlHttp + STATIC_DOWNLOAD_PATHS.TORRENTS + this.getTorrentFileName(videoFile)
   }
 
-  getVideoFileUrl (videoFile: VideoFileModel, baseUrlHttp: string) {
+  getVideoFileUrl (videoFile: MVideoFile, baseUrlHttp: string) {
     return baseUrlHttp + STATIC_PATHS.WEBSEED + this.getVideoFilename(videoFile)
   }
 
-  getVideoRedundancyUrl (videoFile: VideoFileModel, baseUrlHttp: string) {
+  getVideoRedundancyUrl (videoFile: MVideoFile, baseUrlHttp: string) {
     return baseUrlHttp + STATIC_PATHS.REDUNDANCY + this.getVideoFilename(videoFile)
   }
 
-  getVideoFileDownloadUrl (videoFile: VideoFileModel, baseUrlHttp: string) {
+  getVideoFileDownloadUrl (videoFile: MVideoFile, baseUrlHttp: string) {
     return baseUrlHttp + STATIC_DOWNLOAD_PATHS.VIDEOS + this.getVideoFilename(videoFile)
   }
 
-  getBandwidthBits (videoFile: VideoFileModel) {
+  getBandwidthBits (videoFile: MVideoFile) {
     return Math.ceil((videoFile.size * 8) / this.duration)
   }
 }