23 files changed, 981 insertions, 585 deletions

diff --git a/server/models/account/account-follow-interface.ts b/server/models/account/account-follow-interface.ts
new file mode 100644
index 000000000..3be383649
--- /dev/null
+++ b/server/models/account/account-follow-interface.ts
@@ -0,0 +1,23 @@
+import * as Sequelize from 'sequelize'
+import * as Promise from 'bluebird'
+
+import { VideoRateType } from '../../../shared/models/videos/video-rate.type'
+
+export namespace AccountFollowMethods {
+}
+
+export interface AccountFollowClass {
+}
+
+export interface AccountFollowAttributes {
+  accountId: number
+  targetAccountId: number
+}
+
+export interface AccountFollowInstance extends AccountFollowClass, AccountFollowAttributes, Sequelize.Instance<AccountFollowAttributes> {
+  id: number
+  createdAt: Date
+  updatedAt: Date
+}
+
+export interface AccountFollowModel extends AccountFollowClass, Sequelize.Model<AccountFollowInstance, AccountFollowAttributes> {}
diff --git a/server/models/account/account-follow.ts b/server/models/account/account-follow.ts
new file mode 100644
index 000000000..9bf03b253
--- /dev/null
+++ b/server/models/account/account-follow.ts
@@ -0,0 +1,56 @@
+import * as Sequelize from 'sequelize'
+
+import { addMethodsToModel } from '../utils'
+import {
+  AccountFollowInstance,
+  AccountFollowAttributes,
+
+  AccountFollowMethods
+} from './account-follow-interface'
+
+let AccountFollow: Sequelize.Model<AccountFollowInstance, AccountFollowAttributes>
+
+export default function (sequelize: Sequelize.Sequelize, DataTypes: Sequelize.DataTypes) {
+  AccountFollow = sequelize.define<AccountFollowInstance, AccountFollowAttributes>('AccountFollow',
+    { },
+    {
+      indexes: [
+        {
+          fields: [ 'accountId' ],
+          unique: true
+        },
+        {
+          fields: [ 'targetAccountId' ],
+          unique: true
+        }
+      ]
+    }
+  )
+
+  const classMethods = [
+    associate
+  ]
+  addMethodsToModel(AccountFollow, classMethods)
+
+  return AccountFollow
+}
+
+// ------------------------------ STATICS ------------------------------
+
+function associate (models) {
+  AccountFollow.belongsTo(models.Account, {
+    foreignKey: {
+      name: 'accountId',
+      allowNull: false
+    },
+    onDelete: 'CASCADE'
+  })
+
+  AccountFollow.belongsTo(models.Account, {
+    foreignKey: {
+      name: 'targetAccountId',
+      allowNull: false
+    },
+    onDelete: 'CASCADE'
+  })
+}
diff --git a/server/models/account/account-interface.ts b/server/models/account/account-interface.ts
new file mode 100644
index 000000000..2ef3e2246
--- /dev/null
+++ b/server/models/account/account-interface.ts
@@ -0,0 +1,74 @@
+import * as Sequelize from 'sequelize'
+import * as Bluebird from 'bluebird'
+
+import { PodInstance } from '../pod/pod-interface'
+import { VideoChannelInstance } from '../video/video-channel-interface'
+import { ActivityPubActor } from '../../../shared'
+import { ResultList } from '../../../shared/models/result-list.model'
+
+export namespace AccountMethods {
+  export type Load = (id: number) => Bluebird<AccountInstance>
+  export type LoadByUUID = (uuid: string) => Bluebird<AccountInstance>
+  export type LoadByUrl = (url: string) => Bluebird<AccountInstance>
+  export type LoadAccountByPodAndUUID = (uuid: string, podId: number, transaction: Sequelize.Transaction) => Bluebird<AccountInstance>
+  export type LoadLocalAccountByName = (name: string) => Bluebird<AccountInstance>
+  export type ListOwned = () => Bluebird<AccountInstance[]>
+  export type ListFollowerUrlsForApi = (name: string, start: number, count: number) => Promise< ResultList<string> >
+  export type ListFollowingUrlsForApi = (name: string, start: number, count: number) => Promise< ResultList<string> >
+
+  export type ToActivityPubObject = (this: AccountInstance) => ActivityPubActor
+  export type IsOwned = (this: AccountInstance) => boolean
+  export type GetFollowerSharedInboxUrls = (this: AccountInstance) => Bluebird<string[]>
+  export type GetFollowingUrl = (this: AccountInstance) => string
+  export type GetFollowersUrl = (this: AccountInstance) => string
+  export type GetPublicKeyUrl = (this: AccountInstance) => string
+}
+
+export interface AccountClass {
+  loadAccountByPodAndUUID: AccountMethods.LoadAccountByPodAndUUID
+  load: AccountMethods.Load
+  loadByUUID: AccountMethods.LoadByUUID
+  loadByUrl: AccountMethods.LoadByUrl
+  loadLocalAccountByName: AccountMethods.LoadLocalAccountByName
+  listOwned: AccountMethods.ListOwned
+  listFollowerUrlsForApi: AccountMethods.ListFollowerUrlsForApi
+  listFollowingUrlsForApi: AccountMethods.ListFollowingUrlsForApi
+}
+
+export interface AccountAttributes {
+  name: string
+  url: string
+  publicKey: string
+  privateKey: string
+  followersCount: number
+  followingCount: number
+  inboxUrl: string
+  outboxUrl: string
+  sharedInboxUrl: string
+  followersUrl: string
+  followingUrl: string
+
+  uuid?: string
+
+  podId?: number
+  userId?: number
+  applicationId?: number
+}
+
+export interface AccountInstance extends AccountClass, AccountAttributes, Sequelize.Instance<AccountAttributes> {
+  isOwned: AccountMethods.IsOwned
+  toActivityPubObject: AccountMethods.ToActivityPubObject
+  getFollowerSharedInboxUrls: AccountMethods.GetFollowerSharedInboxUrls
+  getFollowingUrl: AccountMethods.GetFollowingUrl
+  getFollowersUrl: AccountMethods.GetFollowersUrl
+  getPublicKeyUrl: AccountMethods.GetPublicKeyUrl
+
+  id: number
+  createdAt: Date
+  updatedAt: Date
+
+  Pod: PodInstance
+  VideoChannels: VideoChannelInstance[]
+}
+
+export interface AccountModel extends AccountClass, Sequelize.Model<AccountInstance, AccountAttributes> {}
diff --git a/server/models/account/account-video-rate-interface.ts b/server/models/account/account-video-rate-interface.ts
new file mode 100644
index 000000000..82cbe38cc
--- /dev/null
+++ b/server/models/account/account-video-rate-interface.ts
@@ -0,0 +1,26 @@
+import * as Sequelize from 'sequelize'
+import * as Promise from 'bluebird'
+
+import { VideoRateType } from '../../../shared/models/videos/video-rate.type'
+
+export namespace AccountVideoRateMethods {
+  export type Load = (accountId: number, videoId: number, transaction: Sequelize.Transaction) => Promise<AccountVideoRateInstance>
+}
+
+export interface AccountVideoRateClass {
+  load: AccountVideoRateMethods.Load
+}
+
+export interface AccountVideoRateAttributes {
+  type: VideoRateType
+  accountId: number
+  videoId: number
+}
+
+export interface AccountVideoRateInstance extends AccountVideoRateClass, AccountVideoRateAttributes, Sequelize.Instance<AccountVideoRateAttributes> {
+  id: number
+  createdAt: Date
+  updatedAt: Date
+}
+
+export interface AccountVideoRateModel extends AccountVideoRateClass, Sequelize.Model<AccountVideoRateInstance, AccountVideoRateAttributes> {}
diff --git a/server/models/user/user-video-rate.ts b/server/models/account/account-video-rate.ts
index 7d6dd7281..7f7c97606 100644
--- a/server/models/user/user-video-rate.ts
+++ b/server/models/account/account-video-rate.ts
@@ -1,5 +1,5 @@
 /*
-  User rates per video.
+  Account rates per video.
 */
 import { values } from 'lodash'
 import * as Sequelize from 'sequelize'
@@ -8,17 +8,17 @@ import { VIDEO_RATE_TYPES } from '../../initializers'
 
 import { addMethodsToModel } from '../utils'
 import {
-  UserVideoRateInstance,
-  UserVideoRateAttributes,
+  AccountVideoRateInstance,
+  AccountVideoRateAttributes,
 
-  UserVideoRateMethods
-} from './user-video-rate-interface'
+  AccountVideoRateMethods
+} from './account-video-rate-interface'
 
-let UserVideoRate: Sequelize.Model<UserVideoRateInstance, UserVideoRateAttributes>
-let load: UserVideoRateMethods.Load
+let AccountVideoRate: Sequelize.Model<AccountVideoRateInstance, AccountVideoRateAttributes>
+let load: AccountVideoRateMethods.Load
 
 export default function (sequelize: Sequelize.Sequelize, DataTypes: Sequelize.DataTypes) {
-  UserVideoRate = sequelize.define<UserVideoRateInstance, UserVideoRateAttributes>('UserVideoRate',
+  AccountVideoRate = sequelize.define<AccountVideoRateInstance, AccountVideoRateAttributes>('AccountVideoRate',
     {
       type: {
         type: DataTypes.ENUM(values(VIDEO_RATE_TYPES)),
@@ -28,7 +28,7 @@ export default function (sequelize: Sequelize.Sequelize, DataTypes: Sequelize.Da
     {
       indexes: [
         {
-          fields: [ 'videoId', 'userId', 'type' ],
+          fields: [ 'videoId', 'accountId', 'type' ],
           unique: true
         }
       ]
@@ -40,15 +40,15 @@ export default function (sequelize: Sequelize.Sequelize, DataTypes: Sequelize.Da
 
     load
   ]
-  addMethodsToModel(UserVideoRate, classMethods)
+  addMethodsToModel(AccountVideoRate, classMethods)
 
-  return UserVideoRate
+  return AccountVideoRate
 }
 
 // ------------------------------ STATICS ------------------------------
 
 function associate (models) {
-  UserVideoRate.belongsTo(models.Video, {
+  AccountVideoRate.belongsTo(models.Video, {
     foreignKey: {
       name: 'videoId',
       allowNull: false
@@ -56,23 +56,23 @@ function associate (models) {
     onDelete: 'CASCADE'
   })
 
-  UserVideoRate.belongsTo(models.User, {
+  AccountVideoRate.belongsTo(models.Account, {
     foreignKey: {
-      name: 'userId',
+      name: 'accountId',
       allowNull: false
     },
     onDelete: 'CASCADE'
   })
 }
 
-load = function (userId: number, videoId: number, transaction: Sequelize.Transaction) {
-  const options: Sequelize.FindOptions<UserVideoRateAttributes> = {
+load = function (accountId: number, videoId: number, transaction: Sequelize.Transaction) {
+  const options: Sequelize.FindOptions<AccountVideoRateAttributes> = {
     where: {
-      userId,
+      accountId,
       videoId
     }
   }
   if (transaction) options.transaction = transaction
 
-  return UserVideoRate.findOne(options)
+  return AccountVideoRate.findOne(options)
 }
diff --git a/server/models/account/account.ts b/server/models/account/account.ts
new file mode 100644
index 000000000..00c0aefd4
--- /dev/null
+++ b/server/models/account/account.ts
@@ -0,0 +1,444 @@
+import * as Sequelize from 'sequelize'
+
+import {
+  isUserUsernameValid,
+  isAccountPublicKeyValid,
+  isAccountUrlValid,
+  isAccountPrivateKeyValid,
+  isAccountFollowersCountValid,
+  isAccountFollowingCountValid,
+  isAccountInboxValid,
+  isAccountOutboxValid,
+  isAccountSharedInboxValid,
+  isAccountFollowersValid,
+  isAccountFollowingValid,
+  activityPubContextify
+} from '../../helpers'
+
+import { addMethodsToModel } from '../utils'
+import {
+  AccountInstance,
+  AccountAttributes,
+
+  AccountMethods
+} from './account-interface'
+
+let Account: Sequelize.Model<AccountInstance, AccountAttributes>
+let loadAccountByPodAndUUID: AccountMethods.LoadAccountByPodAndUUID
+let load: AccountMethods.Load
+let loadByUUID: AccountMethods.LoadByUUID
+let loadByUrl: AccountMethods.LoadByUrl
+let loadLocalAccountByName: AccountMethods.LoadLocalAccountByName
+let listOwned: AccountMethods.ListOwned
+let listFollowerUrlsForApi: AccountMethods.ListFollowerUrlsForApi
+let listFollowingUrlsForApi: AccountMethods.ListFollowingUrlsForApi
+let isOwned: AccountMethods.IsOwned
+let toActivityPubObject: AccountMethods.ToActivityPubObject
+let getFollowerSharedInboxUrls: AccountMethods.GetFollowerSharedInboxUrls
+let getFollowingUrl: AccountMethods.GetFollowingUrl
+let getFollowersUrl: AccountMethods.GetFollowersUrl
+let getPublicKeyUrl: AccountMethods.GetPublicKeyUrl
+
+export default function defineAccount (sequelize: Sequelize.Sequelize, DataTypes: Sequelize.DataTypes) {
+  Account = sequelize.define<AccountInstance, AccountAttributes>('Account',
+    {
+      uuid: {
+        type: DataTypes.UUID,
+        defaultValue: DataTypes.UUIDV4,
+        allowNull: false,
+        validate: {
+          isUUID: 4
+        }
+      },
+      name: {
+        type: DataTypes.STRING,
+        allowNull: false,
+        validate: {
+          usernameValid: value => {
+            const res = isUserUsernameValid(value)
+            if (res === false) throw new Error('Username is not valid.')
+          }
+        }
+      },
+      url: {
+        type: DataTypes.STRING,
+        allowNull: false,
+        validate: {
+          urlValid: value => {
+            const res = isAccountUrlValid(value)
+            if (res === false) throw new Error('URL is not valid.')
+          }
+        }
+      },
+      publicKey: {
+        type: DataTypes.STRING,
+        allowNull: false,
+        validate: {
+          publicKeyValid: value => {
+            const res = isAccountPublicKeyValid(value)
+            if (res === false) throw new Error('Public key is not valid.')
+          }
+        }
+      },
+      privateKey: {
+        type: DataTypes.STRING,
+        allowNull: false,
+        validate: {
+          privateKeyValid: value => {
+            const res = isAccountPrivateKeyValid(value)
+            if (res === false) throw new Error('Private key is not valid.')
+          }
+        }
+      },
+      followersCount: {
+        type: DataTypes.INTEGER,
+        allowNull: false,
+        validate: {
+          followersCountValid: value => {
+            const res = isAccountFollowersCountValid(value)
+            if (res === false) throw new Error('Followers count is not valid.')
+          }
+        }
+      },
+      followingCount: {
+        type: DataTypes.INTEGER,
+        allowNull: false,
+        validate: {
+          followersCountValid: value => {
+            const res = isAccountFollowingCountValid(value)
+            if (res === false) throw new Error('Following count is not valid.')
+          }
+        }
+      },
+      inboxUrl: {
+        type: DataTypes.STRING,
+        allowNull: false,
+        validate: {
+          inboxUrlValid: value => {
+            const res = isAccountInboxValid(value)
+            if (res === false) throw new Error('Inbox URL is not valid.')
+          }
+        }
+      },
+      outboxUrl: {
+        type: DataTypes.STRING,
+        allowNull: false,
+        validate: {
+          outboxUrlValid: value => {
+            const res = isAccountOutboxValid(value)
+            if (res === false) throw new Error('Outbox URL is not valid.')
+          }
+        }
+      },
+      sharedInboxUrl: {
+        type: DataTypes.STRING,
+        allowNull: false,
+        validate: {
+          sharedInboxUrlValid: value => {
+            const res = isAccountSharedInboxValid(value)
+            if (res === false) throw new Error('Shared inbox URL is not valid.')
+          }
+        }
+      },
+      followersUrl: {
+        type: DataTypes.STRING,
+        allowNull: false,
+        validate: {
+          followersUrlValid: value => {
+            const res = isAccountFollowersValid(value)
+            if (res === false) throw new Error('Followers URL is not valid.')
+          }
+        }
+      },
+      followingUrl: {
+        type: DataTypes.STRING,
+        allowNull: false,
+        validate: {
+          followingUrlValid: value => {
+            const res = isAccountFollowingValid(value)
+            if (res === false) throw new Error('Following URL is not valid.')
+          }
+        }
+      }
+    },
+    {
+      indexes: [
+        {
+          fields: [ 'name' ]
+        },
+        {
+          fields: [ 'podId' ]
+        },
+        {
+          fields: [ 'userId' ],
+          unique: true
+        },
+        {
+          fields: [ 'applicationId' ],
+          unique: true
+        },
+        {
+          fields: [ 'name', 'podId' ],
+          unique: true
+        }
+      ],
+      hooks: { afterDestroy }
+    }
+  )
+
+  const classMethods = [
+    associate,
+    loadAccountByPodAndUUID,
+    load,
+    loadByUUID,
+    loadLocalAccountByName,
+    listOwned,
+    listFollowerUrlsForApi,
+    listFollowingUrlsForApi
+  ]
+  const instanceMethods = [
+    isOwned,
+    toActivityPubObject,
+    getFollowerSharedInboxUrls,
+    getFollowingUrl,
+    getFollowersUrl,
+    getPublicKeyUrl
+  ]
+  addMethodsToModel(Account, classMethods, instanceMethods)
+
+  return Account
+}
+
+// ---------------------------------------------------------------------------
+
+function associate (models) {
+  Account.belongsTo(models.Pod, {
+    foreignKey: {
+      name: 'podId',
+      allowNull: true
+    },
+    onDelete: 'cascade'
+  })
+
+  Account.belongsTo(models.User, {
+    foreignKey: {
+      name: 'userId',
+      allowNull: true
+    },
+    onDelete: 'cascade'
+  })
+
+  Account.belongsTo(models.Application, {
+    foreignKey: {
+      name: 'userId',
+      allowNull: true
+    },
+    onDelete: 'cascade'
+  })
+
+  Account.hasMany(models.VideoChannel, {
+    foreignKey: {
+      name: 'accountId',
+      allowNull: false
+    },
+    onDelete: 'cascade',
+    hooks: true
+  })
+
+  Account.hasMany(models.AccountFollower, {
+    foreignKey: {
+      name: 'accountId',
+      allowNull: false
+    },
+    onDelete: 'cascade'
+  })
+
+  Account.hasMany(models.AccountFollower, {
+    foreignKey: {
+      name: 'targetAccountId',
+      allowNull: false
+    },
+    onDelete: 'cascade'
+  })
+}
+
+function afterDestroy (account: AccountInstance) {
+  if (account.isOwned()) {
+    const removeVideoAccountToFriendsParams = {
+      uuid: account.uuid
+    }
+
+    return removeVideoAccountToFriends(removeVideoAccountToFriendsParams)
+  }
+
+  return undefined
+}
+
+toActivityPubObject = function (this: AccountInstance) {
+  const type = this.podId ? 'Application' : 'Person'
+
+  const json = {
+    type,
+    id: this.url,
+    following: this.getFollowingUrl(),
+    followers: this.getFollowersUrl(),
+    inbox: this.inboxUrl,
+    outbox: this.outboxUrl,
+    preferredUsername: this.name,
+    url: this.url,
+    name: this.name,
+    endpoints: {
+      sharedInbox: this.sharedInboxUrl
+    },
+    uuid: this.uuid,
+    publicKey: {
+      id: this.getPublicKeyUrl(),
+      owner: this.url,
+      publicKeyPem: this.publicKey
+    }
+  }
+
+  return activityPubContextify(json)
+}
+
+isOwned = function (this: AccountInstance) {
+  return this.podId === null
+}
+
+getFollowerSharedInboxUrls = function (this: AccountInstance) {
+  const query: Sequelize.FindOptions<AccountAttributes> = {
+    attributes: [ 'sharedInboxUrl' ],
+    include: [
+      {
+        model: Account['sequelize'].models.AccountFollower,
+        where: {
+          targetAccountId: this.id
+        }
+      }
+    ]
+  }
+
+  return Account.findAll(query)
+    .then(accounts => accounts.map(a => a.sharedInboxUrl))
+}
+
+getFollowingUrl = function (this: AccountInstance) {
+  return this.url + '/followers'
+}
+
+getFollowersUrl = function (this: AccountInstance) {
+  return this.url + '/followers'
+}
+
+getPublicKeyUrl = function (this: AccountInstance) {
+  return this.url + '#main-key'
+}
+
+// ------------------------------ STATICS ------------------------------
+
+listOwned = function () {
+  const query: Sequelize.FindOptions<AccountAttributes> = {
+    where: {
+      podId: null
+    }
+  }
+
+  return Account.findAll(query)
+}
+
+listFollowerUrlsForApi = function (name: string, start: number, count: number) {
+  return createListFollowForApiQuery('followers', name, start, count)
+}
+
+listFollowingUrlsForApi = function (name: string, start: number, count: number) {
+  return createListFollowForApiQuery('following', name, start, count)
+}
+
+load = function (id: number) {
+  return Account.findById(id)
+}
+
+loadByUUID = function (uuid: string) {
+  const query: Sequelize.FindOptions<AccountAttributes> = {
+    where: {
+      uuid
+    }
+  }
+
+  return Account.findOne(query)
+}
+
+loadLocalAccountByName = function (name: string) {
+  const query: Sequelize.FindOptions<AccountAttributes> = {
+    where: {
+      name,
+      userId: {
+        [Sequelize.Op.ne]: null
+      }
+    }
+  }
+
+  return Account.findOne(query)
+}
+
+loadByUrl = function (url: string) {
+  const query: Sequelize.FindOptions<AccountAttributes> = {
+    where: {
+      url
+    }
+  }
+
+  return Account.findOne(query)
+}
+
+loadAccountByPodAndUUID = function (uuid: string, podId: number, transaction: Sequelize.Transaction) {
+  const query: Sequelize.FindOptions<AccountAttributes> = {
+    where: {
+      podId,
+      uuid
+    },
+    transaction
+  }
+
+  return Account.find(query)
+}
+
+// ------------------------------ UTILS ------------------------------
+
+async function createListFollowForApiQuery (type: 'followers' | 'following', name: string, start: number, count: number) {
+  let firstJoin: string
+  let secondJoin: string
+
+  if (type === 'followers') {
+    firstJoin = 'targetAccountId'
+    secondJoin = 'accountId'
+  } else {
+    firstJoin = 'accountId'
+    secondJoin = 'targetAccountId'
+  }
+
+  const selections = [ '"Followers"."url" AS "url"', 'COUNT(*) AS "total"' ]
+  const tasks: Promise<any>[] = []
+
+  for (const selection of selections) {
+    const query = 'SELECT ' + selection + ' FROM "Account" ' +
+      'INNER JOIN "AccountFollower" ON "AccountFollower"."' + firstJoin + '" = "Account"."id" ' +
+      'INNER JOIN "Account" AS "Followers" ON "Followers"."id" = "AccountFollower"."' + secondJoin + '" ' +
+      'WHERE "Account"."name" = \'$name\' ' +
+      'LIMIT ' + start + ', ' + count
+
+    const options = {
+      bind: { name },
+      type: Sequelize.QueryTypes.SELECT
+    }
+    tasks.push(Account['sequelize'].query(query, options))
+  }
+
+  const [ followers, [ { total } ]] = await Promise.all(tasks)
+  const urls: string[] = followers.map(f => f.url)
+
+  return {
+    data: urls,
+    total: parseInt(total, 10)
+  }
+}
diff --git a/server/models/account/index.ts b/server/models/account/index.ts
new file mode 100644
index 000000000..179f66974
--- /dev/null
+++ b/server/models/account/index.ts
@@ -0,0 +1,4 @@
+export * from './account-interface'
+export * from './account-follow-interface'
+export * from './account-video-rate-interface'
+export * from './user-interface'
diff --git a/server/models/user/user-interface.ts b/server/models/account/user-interface.ts
index 49c75aa3b..1a04fb750 100644
--- a/server/models/user/user-interface.ts
+++ b/server/models/account/user-interface.ts
@@ -1,10 +1,10 @@
 import * as Sequelize from 'sequelize'
-import * as Promise from 'bluebird'
+import * as Bluebird from 'bluebird'
 
 // Don't use barrel, import just what we need
+import { AccountInstance } from './account-interface'
 import { User as FormattedUser } from '../../../shared/models/users/user.model'
 import { ResultList } from '../../../shared/models/result-list.model'
-import { AuthorInstance } from '../video/author-interface'
 import { UserRight } from '../../../shared/models/users/user-right.enum'
 import { UserRole } from '../../../shared/models/users/user-role'
 
@@ -15,18 +15,18 @@ export namespace UserMethods {
   export type ToFormattedJSON = (this: UserInstance) => FormattedUser
   export type IsAbleToUploadVideo = (this: UserInstance, videoFile: Express.Multer.File) => Promise<boolean>
 
-  export type CountTotal = () => Promise<number>
+  export type CountTotal = () => Bluebird<number>
 
-  export type GetByUsername = (username: string) => Promise<UserInstance>
+  export type GetByUsername = (username: string) => Bluebird<UserInstance>
 
-  export type ListForApi = (start: number, count: number, sort: string) => Promise< ResultList<UserInstance> >
+  export type ListForApi = (start: number, count: number, sort: string) => Bluebird< ResultList<UserInstance> >
 
-  export type LoadById = (id: number) => Promise<UserInstance>
+  export type LoadById = (id: number) => Bluebird<UserInstance>
 
-  export type LoadByUsername = (username: string) => Promise<UserInstance>
-  export type LoadByUsernameAndPopulateChannels = (username: string) => Promise<UserInstance>
+  export type LoadByUsername = (username: string) => Bluebird<UserInstance>
+  export type LoadByUsernameAndPopulateChannels = (username: string) => Bluebird<UserInstance>
 
-  export type LoadByUsernameOrEmail = (username: string, email: string) => Promise<UserInstance>
+  export type LoadByUsernameOrEmail = (username: string, email: string) => Bluebird<UserInstance>
 }
 
 export interface UserClass {
@@ -53,7 +53,7 @@ export interface UserAttributes {
   role: UserRole
   videoQuota: number
 
-  Author?: AuthorInstance
+  Account?: AccountInstance
 }
 
 export interface UserInstance extends UserClass, UserAttributes, Sequelize.Instance<UserAttributes> {
diff --git a/server/models/user/user.ts b/server/models/account/user.ts
index b974418d4..1401762c5 100644
--- a/server/models/user/user.ts
+++ b/server/models/account/user.ts
@@ -1,5 +1,4 @@
 import * as Sequelize from 'sequelize'
-import * as Promise from 'bluebird'
 
 import { getSort, addMethodsToModel } from '../utils'
 import {
@@ -166,13 +165,13 @@ toFormattedJSON = function (this: UserInstance) {
     videoQuota: this.videoQuota,
     createdAt: this.createdAt,
     author: {
-      id: this.Author.id,
-      uuid: this.Author.uuid
+      id: this.Account.id,
+      uuid: this.Account.uuid
     }
   }
 
-  if (Array.isArray(this.Author.VideoChannels) === true) {
-    const videoChannels = this.Author.VideoChannels
+  if (Array.isArray(this.Account.VideoChannels) === true) {
+    const videoChannels = this.Account.VideoChannels
       .map(c => c.toFormattedJSON())
       .sort((v1, v2) => {
         if (v1.createdAt < v2.createdAt) return -1
@@ -198,7 +197,7 @@ isAbleToUploadVideo = function (this: UserInstance, videoFile: Express.Multer.Fi
 // ------------------------------ STATICS ------------------------------
 
 function associate (models) {
-  User.hasOne(models.Author, {
+  User.hasOne(models.Account, {
     foreignKey: 'userId',
     onDelete: 'cascade'
   })
@@ -218,7 +217,7 @@ getByUsername = function (username: string) {
     where: {
       username: username
     },
-    include: [ { model: User['sequelize'].models.Author, required: true } ]
+    include: [ { model: User['sequelize'].models.Account, required: true } ]
   }
 
   return User.findOne(query)
@@ -229,7 +228,7 @@ listForApi = function (start: number, count: number, sort: string) {
     offset: start,
     limit: count,
     order: [ getSort(sort) ],
-    include: [ { model: User['sequelize'].models.Author, required: true } ]
+    include: [ { model: User['sequelize'].models.Account, required: true } ]
   }
 
   return User.findAndCountAll(query).then(({ rows, count }) => {
@@ -242,7 +241,7 @@ listForApi = function (start: number, count: number, sort: string) {
 
 loadById = function (id: number) {
   const options = {
-    include: [ { model: User['sequelize'].models.Author, required: true } ]
+    include: [ { model: User['sequelize'].models.Account, required: true } ]
   }
 
   return User.findById(id, options)
@@ -253,7 +252,7 @@ loadByUsername = function (username: string) {
     where: {
       username
     },
-    include: [ { model: User['sequelize'].models.Author, required: true } ]
+    include: [ { model: User['sequelize'].models.Account, required: true } ]
   }
 
   return User.findOne(query)
@@ -266,7 +265,7 @@ loadByUsernameAndPopulateChannels = function (username: string) {
     },
     include: [
       {
-        model: User['sequelize'].models.Author,
+        model: User['sequelize'].models.Account,
         required: true,
         include: [ User['sequelize'].models.VideoChannel ]
       }
@@ -278,7 +277,7 @@ loadByUsernameAndPopulateChannels = function (username: string) {
 
 loadByUsernameOrEmail = function (username: string, email: string) {
   const query = {
-    include: [ { model: User['sequelize'].models.Author, required: true } ],
+    include: [ { model: User['sequelize'].models.Account, required: true } ],
     where: {
       [Sequelize.Op.or]: [ { username }, { email } ]
     }
@@ -296,8 +295,8 @@ function getOriginalVideoFileTotalFromUser (user: UserInstance) {
                 '(SELECT MAX("VideoFiles"."size") AS "size" FROM "VideoFiles" ' +
                 'INNER JOIN "Videos" ON "VideoFiles"."videoId" = "Videos"."id" ' +
                 'INNER JOIN "VideoChannels" ON "VideoChannels"."id" = "Videos"."channelId" ' +
-                'INNER JOIN "Authors" ON "VideoChannels"."authorId" = "Authors"."id" ' +
-                'INNER JOIN "Users" ON "Authors"."userId" = "Users"."id" ' +
+                'INNER JOIN "Accounts" ON "VideoChannels"."authorId" = "Accounts"."id" ' +
+                'INNER JOIN "Users" ON "Accounts"."userId" = "Users"."id" ' +
                 'WHERE "Users"."id" = $userId GROUP BY "Videos"."id") t'
 
   const options = {
diff --git a/server/models/index.ts b/server/models/index.ts
index b392a8a77..29479e067 100644
--- a/server/models/index.ts
+++ b/server/models/index.ts
@@ -3,5 +3,5 @@ export * from './job'
 export * from './oauth'
 export * from './pod'
 export * from './request'
-export * from './user'
+export * from './account'
 export * from './video'
diff --git a/server/models/job/job-interface.ts b/server/models/job/job-interface.ts
index ba5622977..163930a4f 100644
--- a/server/models/job/job-interface.ts
+++ b/server/models/job/job-interface.ts
@@ -1,14 +1,14 @@
 import * as Sequelize from 'sequelize'
 import * as Promise from 'bluebird'
 
-import { JobState } from '../../../shared/models/job.model'
+import { JobCategory, JobState } from '../../../shared/models/job.model'
 
 export namespace JobMethods {
-  export type ListWithLimit = (limit: number, state: JobState) => Promise<JobInstance[]>
+  export type ListWithLimitByCategory = (limit: number, state: JobState, category: JobCategory) => Promise<JobInstance[]>
 }
 
 export interface JobClass {
-  listWithLimit: JobMethods.ListWithLimit
+  listWithLimitByCategory: JobMethods.ListWithLimitByCategory
 }
 
 export interface JobAttributes {
diff --git a/server/models/job/job.ts b/server/models/job/job.ts
index 968f9d71d..ce1203e5a 100644
--- a/server/models/job/job.ts
+++ b/server/models/job/job.ts
@@ -1,7 +1,7 @@
 import { values } from 'lodash'
 import * as Sequelize from 'sequelize'
 
-import { JOB_STATES } from '../../initializers'
+import { JOB_STATES, JOB_CATEGORIES } from '../../initializers'
 
 import { addMethodsToModel } from '../utils'
 import {
@@ -13,7 +13,7 @@ import {
 import { JobState } from '../../../shared/models/job.model'
 
 let Job: Sequelize.Model<JobInstance, JobAttributes>
-let listWithLimit: JobMethods.ListWithLimit
+let listWithLimitByCategory: JobMethods.ListWithLimitByCategory
 
 export default function defineJob (sequelize: Sequelize.Sequelize, DataTypes: Sequelize.DataTypes) {
   Job = sequelize.define<JobInstance, JobAttributes>('Job',
@@ -22,6 +22,10 @@ export default function defineJob (sequelize: Sequelize.Sequelize, DataTypes: Se
         type: DataTypes.ENUM(values(JOB_STATES)),
         allowNull: false
       },
+      category: {
+        type: DataTypes.ENUM(values(JOB_CATEGORIES)),
+        allowNull: false
+      },
       handlerName: {
         type: DataTypes.STRING,
         allowNull: false
@@ -40,7 +44,7 @@ export default function defineJob (sequelize: Sequelize.Sequelize, DataTypes: Se
     }
   )
 
-  const classMethods = [ listWithLimit ]
+  const classMethods = [ listWithLimitByCategory ]
   addMethodsToModel(Job, classMethods)
 
   return Job
@@ -48,7 +52,7 @@ export default function defineJob (sequelize: Sequelize.Sequelize, DataTypes: Se
 
 // ---------------------------------------------------------------------------
 
-listWithLimit = function (limit: number, state: JobState) {
+listWithLimitByCategory = function (limit: number, state: JobState) {
   const query = {
     order: [
       [ 'id', 'ASC' ]
diff --git a/server/models/oauth/oauth-token-interface.ts b/server/models/oauth/oauth-token-interface.ts
index 0c947bde8..ef97893c4 100644
--- a/server/models/oauth/oauth-token-interface.ts
+++ b/server/models/oauth/oauth-token-interface.ts
@@ -1,7 +1,7 @@
 import * as Sequelize from 'sequelize'
 import * as Promise from 'bluebird'
 
-import { UserModel } from '../user/user-interface'
+import { UserModel } from '../account/user-interface'
 
 export type OAuthTokenInfo = {
   refreshToken: string
diff --git a/server/models/pod/pod-interface.ts b/server/models/pod/pod-interface.ts
index 7e095d424..6c5aab3fa 100644
--- a/server/models/pod/pod-interface.ts
+++ b/server/models/pod/pod-interface.ts
@@ -48,9 +48,7 @@ export interface PodClass {
 export interface PodAttributes {
   id?: number
   host?: string
-  publicKey?: string
   score?: number | Sequelize.literal // Sequelize literal for 'score +' + value
-  email?: string
 }
 
 export interface PodInstance extends PodClass, PodAttributes, Sequelize.Instance<PodAttributes> {
diff --git a/server/models/pod/pod.ts b/server/models/pod/pod.ts
index 6b33336b8..7c8b49bf8 100644
--- a/server/models/pod/pod.ts
+++ b/server/models/pod/pod.ts
@@ -39,10 +39,6 @@ export default function (sequelize: Sequelize.Sequelize, DataTypes: Sequelize.Da
           }
         }
       },
-      publicKey: {
-        type: DataTypes.STRING(5000),
-        allowNull: false
-      },
       score: {
         type: DataTypes.INTEGER,
         defaultValue: FRIEND_SCORE.BASE,
@@ -51,13 +47,6 @@ export default function (sequelize: Sequelize.Sequelize, DataTypes: Sequelize.Da
           isInt: true,
           max: FRIEND_SCORE.MAX
         }
-      },
-      email: {
-        type: DataTypes.STRING(400),
-        allowNull: false,
-        validate: {
-          isEmail: true
-        }
       }
     },
     {
@@ -100,7 +89,6 @@ toFormattedJSON = function (this: PodInstance) {
   const json = {
     id: this.id,
     host: this.host,
-    email: this.email,
     score: this.score as number,
     createdAt: this.createdAt
   }
diff --git a/server/models/user/index.ts b/server/models/user/index.ts
deleted file mode 100644
index ed3689518..000000000
--- a/server/models/user/index.ts
+++ /dev/null
@@ -1,2 +0,0 @@
-export * from './user-video-rate-interface'
-export * from './user-interface'
diff --git a/server/models/user/user-video-rate-interface.ts b/server/models/user/user-video-rate-interface.ts
deleted file mode 100644
index ea0fdc4d9..000000000
--- a/server/models/user/user-video-rate-interface.ts
+++ /dev/null
@@ -1,26 +0,0 @@
-import * as Sequelize from 'sequelize'
-import * as Promise from 'bluebird'
-
-import { VideoRateType } from '../../../shared/models/videos/video-rate.type'
-
-export namespace UserVideoRateMethods {
-  export type Load = (userId: number, videoId: number, transaction: Sequelize.Transaction) => Promise<UserVideoRateInstance>
-}
-
-export interface UserVideoRateClass {
-  load: UserVideoRateMethods.Load
-}
-
-export interface UserVideoRateAttributes {
-  type: VideoRateType
-  userId: number
-  videoId: number
-}
-
-export interface UserVideoRateInstance extends UserVideoRateClass, UserVideoRateAttributes, Sequelize.Instance<UserVideoRateAttributes> {
-  id: number
-  createdAt: Date
-  updatedAt: Date
-}
-
-export interface UserVideoRateModel extends UserVideoRateClass, Sequelize.Model<UserVideoRateInstance, UserVideoRateAttributes> {}
diff --git a/server/models/video/author-interface.ts b/server/models/video/author-interface.ts
deleted file mode 100644
index fc69ff3c2..000000000
--- a/server/models/video/author-interface.ts
+++ /dev/null
@@ -1,45 +0,0 @@
-import * as Sequelize from 'sequelize'
-import * as Promise from 'bluebird'
-
-import { PodInstance } from '../pod/pod-interface'
-import { RemoteVideoAuthorCreateData } from '../../../shared/models/pods/remote-video/remote-video-author-create-request.model'
-import { VideoChannelInstance } from './video-channel-interface'
-
-export namespace AuthorMethods {
-  export type Load = (id: number) => Promise<AuthorInstance>
-  export type LoadByUUID = (uuid: string) => Promise<AuthorInstance>
-  export type LoadAuthorByPodAndUUID = (uuid: string, podId: number, transaction: Sequelize.Transaction) => Promise<AuthorInstance>
-  export type ListOwned = () => Promise<AuthorInstance[]>
-
-  export type ToAddRemoteJSON = (this: AuthorInstance) => RemoteVideoAuthorCreateData
-  export type IsOwned = (this: AuthorInstance) => boolean
-}
-
-export interface AuthorClass {
-  loadAuthorByPodAndUUID: AuthorMethods.LoadAuthorByPodAndUUID
-  load: AuthorMethods.Load
-  loadByUUID: AuthorMethods.LoadByUUID
-  listOwned: AuthorMethods.ListOwned
-}
-
-export interface AuthorAttributes {
-  name: string
-  uuid?: string
-
-  podId?: number
-  userId?: number
-}
-
-export interface AuthorInstance extends AuthorClass, AuthorAttributes, Sequelize.Instance<AuthorAttributes> {
-  isOwned: AuthorMethods.IsOwned
-  toAddRemoteJSON: AuthorMethods.ToAddRemoteJSON
-
-  id: number
-  createdAt: Date
-  updatedAt: Date
-
-  Pod: PodInstance
-  VideoChannels: VideoChannelInstance[]
-}
-
-export interface AuthorModel extends AuthorClass, Sequelize.Model<AuthorInstance, AuthorAttributes> {}
diff --git a/server/models/video/author.ts b/server/models/video/author.ts
deleted file mode 100644
index 43f84c3ea..000000000
--- a/server/models/video/author.ts
+++ /dev/null
@@ -1,171 +0,0 @@
-import * as Sequelize from 'sequelize'
-
-import { isUserUsernameValid } from '../../helpers'
-import { removeVideoAuthorToFriends } from '../../lib'
-
-import { addMethodsToModel } from '../utils'
-import {
-  AuthorInstance,
-  AuthorAttributes,
-
-  AuthorMethods
-} from './author-interface'
-
-let Author: Sequelize.Model<AuthorInstance, AuthorAttributes>
-let loadAuthorByPodAndUUID: AuthorMethods.LoadAuthorByPodAndUUID
-let load: AuthorMethods.Load
-let loadByUUID: AuthorMethods.LoadByUUID
-let listOwned: AuthorMethods.ListOwned
-let isOwned: AuthorMethods.IsOwned
-let toAddRemoteJSON: AuthorMethods.ToAddRemoteJSON
-
-export default function defineAuthor (sequelize: Sequelize.Sequelize, DataTypes: Sequelize.DataTypes) {
-  Author = sequelize.define<AuthorInstance, AuthorAttributes>('Author',
-    {
-      uuid: {
-        type: DataTypes.UUID,
-        defaultValue: DataTypes.UUIDV4,
-        allowNull: false,
-        validate: {
-          isUUID: 4
-        }
-      },
-      name: {
-        type: DataTypes.STRING,
-        allowNull: false,
-        validate: {
-          usernameValid: value => {
-            const res = isUserUsernameValid(value)
-            if (res === false) throw new Error('Username is not valid.')
-          }
-        }
-      }
-    },
-    {
-      indexes: [
-        {
-          fields: [ 'name' ]
-        },
-        {
-          fields: [ 'podId' ]
-        },
-        {
-          fields: [ 'userId' ],
-          unique: true
-        },
-        {
-          fields: [ 'name', 'podId' ],
-          unique: true
-        }
-      ],
-      hooks: { afterDestroy }
-    }
-  )
-
-  const classMethods = [
-    associate,
-    loadAuthorByPodAndUUID,
-    load,
-    loadByUUID,
-    listOwned
-  ]
-  const instanceMethods = [
-    isOwned,
-    toAddRemoteJSON
-  ]
-  addMethodsToModel(Author, classMethods, instanceMethods)
-
-  return Author
-}
-
-// ---------------------------------------------------------------------------
-
-function associate (models) {
-  Author.belongsTo(models.Pod, {
-    foreignKey: {
-      name: 'podId',
-      allowNull: true
-    },
-    onDelete: 'cascade'
-  })
-
-  Author.belongsTo(models.User, {
-    foreignKey: {
-      name: 'userId',
-      allowNull: true
-    },
-    onDelete: 'cascade'
-  })
-
-  Author.hasMany(models.VideoChannel, {
-    foreignKey: {
-      name: 'authorId',
-      allowNull: false
-    },
-    onDelete: 'cascade',
-    hooks: true
-  })
-}
-
-function afterDestroy (author: AuthorInstance) {
-  if (author.isOwned()) {
-    const removeVideoAuthorToFriendsParams = {
-      uuid: author.uuid
-    }
-
-    return removeVideoAuthorToFriends(removeVideoAuthorToFriendsParams)
-  }
-
-  return undefined
-}
-
-toAddRemoteJSON = function (this: AuthorInstance) {
-  const json = {
-    uuid: this.uuid,
-    name: this.name
-  }
-
-  return json
-}
-
-isOwned = function (this: AuthorInstance) {
-  return this.podId === null
-}
-
-// ------------------------------ STATICS ------------------------------
-
-listOwned = function () {
-  const query: Sequelize.FindOptions<AuthorAttributes> = {
-    where: {
-      podId: null
-    }
-  }
-
-  return Author.findAll(query)
-}
-
-load = function (id: number) {
-  return Author.findById(id)
-}
-
-loadByUUID = function (uuid: string) {
-  const query: Sequelize.FindOptions<AuthorAttributes> = {
-    where: {
-      uuid
-    }
-  }
-
-  return Author.findOne(query)
-}
-
-loadAuthorByPodAndUUID = function (uuid: string, podId: number, transaction: Sequelize.Transaction) {
-  const query: Sequelize.FindOptions<AuthorAttributes> = {
-    where: {
-      podId,
-      uuid
-    },
-    transaction
-  }
-
-  return Author.find(query)
-}
diff --git a/server/models/video/video-channel-interface.ts b/server/models/video/video-channel-interface.ts
index b8d3e0f42..477f97cd4 100644
--- a/server/models/video/video-channel-interface.ts
+++ b/server/models/video/video-channel-interface.ts
@@ -1,42 +1,42 @@
 import * as Sequelize from 'sequelize'
 import * as Promise from 'bluebird'
 
-import { ResultList, RemoteVideoChannelCreateData, RemoteVideoChannelUpdateData } from '../../../shared'
+import { ResultList } from '../../../shared'
 
 // Don't use barrel, import just what we need
 import { VideoChannel as FormattedVideoChannel } from '../../../shared/models/videos/video-channel.model'
-import { AuthorInstance } from './author-interface'
 import { VideoInstance } from './video-interface'
+import { AccountInstance } from '../account/account-interface'
+import { VideoChannelObject } from '../../../shared/models/activitypub/objects/video-channel-object'
 
 export namespace VideoChannelMethods {
   export type ToFormattedJSON = (this: VideoChannelInstance) => FormattedVideoChannel
-  export type ToAddRemoteJSON = (this: VideoChannelInstance) => RemoteVideoChannelCreateData
-  export type ToUpdateRemoteJSON = (this: VideoChannelInstance) => RemoteVideoChannelUpdateData
+  export type ToActivityPubObject = (this: VideoChannelInstance) => VideoChannelObject
   export type IsOwned = (this: VideoChannelInstance) => boolean
 
-  export type CountByAuthor = (authorId: number) => Promise<number>
+  export type CountByAccount = (accountId: number) => Promise<number>
   export type ListOwned = () => Promise<VideoChannelInstance[]>
   export type ListForApi = (start: number, count: number, sort: string) => Promise< ResultList<VideoChannelInstance> >
-  export type LoadByIdAndAuthor = (id: number, authorId: number) => Promise<VideoChannelInstance>
-  export type ListByAuthor = (authorId: number) => Promise< ResultList<VideoChannelInstance> >
-  export type LoadAndPopulateAuthor = (id: number) => Promise<VideoChannelInstance>
-  export type LoadByUUIDAndPopulateAuthor = (uuid: string) => Promise<VideoChannelInstance>
+  export type LoadByIdAndAccount = (id: number, accountId: number) => Promise<VideoChannelInstance>
+  export type ListByAccount = (accountId: number) => Promise< ResultList<VideoChannelInstance> >
+  export type LoadAndPopulateAccount = (id: number) => Promise<VideoChannelInstance>
+  export type LoadByUUIDAndPopulateAccount = (uuid: string) => Promise<VideoChannelInstance>
   export type LoadByUUID = (uuid: string, t?: Sequelize.Transaction) => Promise<VideoChannelInstance>
   export type LoadByHostAndUUID = (uuid: string, podHost: string, t?: Sequelize.Transaction) => Promise<VideoChannelInstance>
-  export type LoadAndPopulateAuthorAndVideos = (id: number) => Promise<VideoChannelInstance>
+  export type LoadAndPopulateAccountAndVideos = (id: number) => Promise<VideoChannelInstance>
 }
 
 export interface VideoChannelClass {
-  countByAuthor: VideoChannelMethods.CountByAuthor
+  countByAccount: VideoChannelMethods.CountByAccount
   listForApi: VideoChannelMethods.ListForApi
-  listByAuthor: VideoChannelMethods.ListByAuthor
+  listByAccount: VideoChannelMethods.ListByAccount
   listOwned: VideoChannelMethods.ListOwned
-  loadByIdAndAuthor: VideoChannelMethods.LoadByIdAndAuthor
+  loadByIdAndAccount: VideoChannelMethods.LoadByIdAndAccount
   loadByUUID: VideoChannelMethods.LoadByUUID
   loadByHostAndUUID: VideoChannelMethods.LoadByHostAndUUID
-  loadAndPopulateAuthor: VideoChannelMethods.LoadAndPopulateAuthor
-  loadByUUIDAndPopulateAuthor: VideoChannelMethods.LoadByUUIDAndPopulateAuthor
-  loadAndPopulateAuthorAndVideos: VideoChannelMethods.LoadAndPopulateAuthorAndVideos
+  loadAndPopulateAccount: VideoChannelMethods.LoadAndPopulateAccount
+  loadByUUIDAndPopulateAccount: VideoChannelMethods.LoadByUUIDAndPopulateAccount
+  loadAndPopulateAccountAndVideos: VideoChannelMethods.LoadAndPopulateAccountAndVideos
 }
 
 export interface VideoChannelAttributes {
@@ -45,8 +45,9 @@ export interface VideoChannelAttributes {
   name: string
   description: string
   remote: boolean
+  url: string
 
-  Author?: AuthorInstance
+  Account?: AccountInstance
   Videos?: VideoInstance[]
 }
 
@@ -57,8 +58,7 @@ export interface VideoChannelInstance extends VideoChannelClass, VideoChannelAtt
 
   isOwned: VideoChannelMethods.IsOwned
   toFormattedJSON: VideoChannelMethods.ToFormattedJSON
-  toAddRemoteJSON: VideoChannelMethods.ToAddRemoteJSON
-  toUpdateRemoteJSON: VideoChannelMethods.ToUpdateRemoteJSON
+  toActivityPubObject: VideoChannelMethods.ToActivityPubObject
 }
 
 export interface VideoChannelModel extends VideoChannelClass, Sequelize.Model<VideoChannelInstance, VideoChannelAttributes> {}
diff --git a/server/models/video/video-channel.ts b/server/models/video/video-channel.ts
index 46c2db63f..c17828f3e 100644
--- a/server/models/video/video-channel.ts
+++ b/server/models/video/video-channel.ts
@@ -13,19 +13,18 @@ import {
 
 let VideoChannel: Sequelize.Model<VideoChannelInstance, VideoChannelAttributes>
 let toFormattedJSON: VideoChannelMethods.ToFormattedJSON
-let toAddRemoteJSON: VideoChannelMethods.ToAddRemoteJSON
-let toUpdateRemoteJSON: VideoChannelMethods.ToUpdateRemoteJSON
+let toActivityPubObject: VideoChannelMethods.ToActivityPubObject
 let isOwned: VideoChannelMethods.IsOwned
-let countByAuthor: VideoChannelMethods.CountByAuthor
+let countByAccount: VideoChannelMethods.CountByAccount
 let listOwned: VideoChannelMethods.ListOwned
 let listForApi: VideoChannelMethods.ListForApi
-let listByAuthor: VideoChannelMethods.ListByAuthor
-let loadByIdAndAuthor: VideoChannelMethods.LoadByIdAndAuthor
+let listByAccount: VideoChannelMethods.ListByAccount
+let loadByIdAndAccount: VideoChannelMethods.LoadByIdAndAccount
 let loadByUUID: VideoChannelMethods.LoadByUUID
-let loadAndPopulateAuthor: VideoChannelMethods.LoadAndPopulateAuthor
-let loadByUUIDAndPopulateAuthor: VideoChannelMethods.LoadByUUIDAndPopulateAuthor
+let loadAndPopulateAccount: VideoChannelMethods.LoadAndPopulateAccount
+let loadByUUIDAndPopulateAccount: VideoChannelMethods.LoadByUUIDAndPopulateAccount
 let loadByHostAndUUID: VideoChannelMethods.LoadByHostAndUUID
-let loadAndPopulateAuthorAndVideos: VideoChannelMethods.LoadAndPopulateAuthorAndVideos
+let loadAndPopulateAccountAndVideos: VideoChannelMethods.LoadAndPopulateAccountAndVideos
 
 export default function (sequelize: Sequelize.Sequelize, DataTypes: Sequelize.DataTypes) {
   VideoChannel = sequelize.define<VideoChannelInstance, VideoChannelAttributes>('VideoChannel',
@@ -62,12 +61,19 @@ export default function (sequelize: Sequelize.Sequelize, DataTypes: Sequelize.Da
         type: DataTypes.BOOLEAN,
         allowNull: false,
         defaultValue: false
+      },
+      url: {
+        type: DataTypes.STRING,
+        allowNull: false,
+        validate: {
+          isUrl: true
+        }
       }
     },
     {
       indexes: [
         {
-          fields: [ 'authorId' ]
+          fields: [ 'accountId' ]
         }
       ],
       hooks: {
@@ -80,21 +86,20 @@ export default function (sequelize: Sequelize.Sequelize, DataTypes: Sequelize.Da
     associate,
 
     listForApi,
-    listByAuthor,
+    listByAccount,
     listOwned,
-    loadByIdAndAuthor,
-    loadAndPopulateAuthor,
-    loadByUUIDAndPopulateAuthor,
+    loadByIdAndAccount,
+    loadAndPopulateAccount,
+    loadByUUIDAndPopulateAccount,
     loadByUUID,
     loadByHostAndUUID,
-    loadAndPopulateAuthorAndVideos,
-    countByAuthor
+    loadAndPopulateAccountAndVideos,
+    countByAccount
   ]
   const instanceMethods = [
     isOwned,
     toFormattedJSON,
-    toAddRemoteJSON,
-    toUpdateRemoteJSON
+    toActivityPubObject,
   ]
   addMethodsToModel(VideoChannel, classMethods, instanceMethods)
 
@@ -118,10 +123,10 @@ toFormattedJSON = function (this: VideoChannelInstance) {
     updatedAt: this.updatedAt
   }
 
-  if (this.Author !== undefined) {
+  if (this.Account !== undefined) {
     json['owner'] = {
-      name: this.Author.name,
-      uuid: this.Author.uuid
+      name: this.Account.name,
+      uuid: this.Account.uuid
     }
   }
 
@@ -132,27 +137,14 @@ toFormattedJSON = function (this: VideoChannelInstance) {
   return json
 }
 
-toAddRemoteJSON = function (this: VideoChannelInstance) {
-  const json = {
-    uuid: this.uuid,
-    name: this.name,
-    description: this.description,
-    createdAt: this.createdAt,
-    updatedAt: this.updatedAt,
-    ownerUUID: this.Author.uuid
-  }
-
-  return json
-}
-
-toUpdateRemoteJSON = function (this: VideoChannelInstance) {
+toActivityPubObject = function (this: VideoChannelInstance) {
   const json = {
     uuid: this.uuid,
     name: this.name,
     description: this.description,
     createdAt: this.createdAt,
     updatedAt: this.updatedAt,
-    ownerUUID: this.Author.uuid
+    ownerUUID: this.Account.uuid
   }
 
   return json
@@ -161,9 +153,9 @@ toUpdateRemoteJSON = function (this: VideoChannelInstance) {
 // ------------------------------ STATICS ------------------------------
 
 function associate (models) {
-  VideoChannel.belongsTo(models.Author, {
+  VideoChannel.belongsTo(models.Account, {
     foreignKey: {
-      name: 'authorId',
+      name: 'accountId',
       allowNull: false
     },
     onDelete: 'CASCADE'
@@ -190,10 +182,10 @@ function afterDestroy (videoChannel: VideoChannelInstance) {
   return undefined
 }
 
-countByAuthor = function (authorId: number) {
+countByAccount = function (accountId: number) {
   const query = {
     where: {
-      authorId
+      accountId
     }
   }
 
@@ -205,7 +197,7 @@ listOwned = function () {
     where: {
       remote: false
     },
-    include: [ VideoChannel['sequelize'].models.Author ]
+    include: [ VideoChannel['sequelize'].models.Account ]
   }
 
   return VideoChannel.findAll(query)
@@ -218,7 +210,7 @@ listForApi = function (start: number, count: number, sort: string) {
     order: [ getSort(sort) ],
     include: [
       {
-        model: VideoChannel['sequelize'].models.Author,
+        model: VideoChannel['sequelize'].models.Account,
         required: true,
         include: [ { model: VideoChannel['sequelize'].models.Pod, required: false } ]
       }
@@ -230,14 +222,14 @@ listForApi = function (start: number, count: number, sort: string) {
   })
 }
 
-listByAuthor = function (authorId: number) {
+listByAccount = function (accountId: number) {
   const query = {
     order: [ getSort('createdAt') ],
     include: [
       {
-        model: VideoChannel['sequelize'].models.Author,
+        model: VideoChannel['sequelize'].models.Account,
         where: {
-          id: authorId
+          id: accountId
         },
         required: true,
         include: [ { model: VideoChannel['sequelize'].models.Pod, required: false } ]
@@ -269,7 +261,7 @@ loadByHostAndUUID = function (fromHost: string, uuid: string, t?: Sequelize.Tran
     },
     include: [
       {
-        model: VideoChannel['sequelize'].models.Author,
+        model: VideoChannel['sequelize'].models.Account,
         include: [
           {
             model: VideoChannel['sequelize'].models.Pod,
@@ -288,15 +280,15 @@ loadByHostAndUUID = function (fromHost: string, uuid: string, t?: Sequelize.Tran
   return VideoChannel.findOne(query)
 }
 
-loadByIdAndAuthor = function (id: number, authorId: number) {
+loadByIdAndAccount = function (id: number, accountId: number) {
   const options = {
     where: {
       id,
-      authorId
+      accountId
     },
     include: [
       {
-        model: VideoChannel['sequelize'].models.Author,
+        model: VideoChannel['sequelize'].models.Account,
         include: [ { model: VideoChannel['sequelize'].models.Pod, required: false } ]
       }
     ]
@@ -305,11 +297,11 @@ loadByIdAndAuthor = function (id: number, authorId: number) {
   return VideoChannel.findOne(options)
 }
 
-loadAndPopulateAuthor = function (id: number) {
+loadAndPopulateAccount = function (id: number) {
   const options = {
     include: [
       {
-        model: VideoChannel['sequelize'].models.Author,
+        model: VideoChannel['sequelize'].models.Account,
         include: [ { model: VideoChannel['sequelize'].models.Pod, required: false } ]
       }
     ]
@@ -318,14 +310,14 @@ loadAndPopulateAuthor = function (id: number) {
   return VideoChannel.findById(id, options)
 }
 
-loadByUUIDAndPopulateAuthor = function (uuid: string) {
+loadByUUIDAndPopulateAccount = function (uuid: string) {
   const options = {
     where: {
       uuid
     },
     include: [
       {
-        model: VideoChannel['sequelize'].models.Author,
+        model: VideoChannel['sequelize'].models.Account,
         include: [ { model: VideoChannel['sequelize'].models.Pod, required: false } ]
       }
     ]
@@ -334,11 +326,11 @@ loadByUUIDAndPopulateAuthor = function (uuid: string) {
   return VideoChannel.findOne(options)
 }
 
-loadAndPopulateAuthorAndVideos = function (id: number) {
+loadAndPopulateAccountAndVideos = function (id: number) {
   const options = {
     include: [
       {
-        model: VideoChannel['sequelize'].models.Author,
+        model: VideoChannel['sequelize'].models.Account,
         include: [ { model: VideoChannel['sequelize'].models.Pod, required: false } ]
       },
       VideoChannel['sequelize'].models.Video
diff --git a/server/models/video/video-interface.ts b/server/models/video/video-interface.ts
index cfe65f9aa..e62e25a82 100644
--- a/server/models/video/video-interface.ts
+++ b/server/models/video/video-interface.ts
@@ -1,5 +1,5 @@
 import * as Sequelize from 'sequelize'
-import * as Promise from 'bluebird'
+import * as Bluebird from 'bluebird'
 
 import { TagAttributes, TagInstance } from './tag-interface'
 import { VideoFileAttributes, VideoFileInstance } from './video-file-interface'
@@ -13,6 +13,7 @@ import { RemoteVideoUpdateData } from '../../../shared/models/pods/remote-video/
 import { RemoteVideoCreateData } from '../../../shared/models/pods/remote-video/remote-video-create-request.model'
 import { ResultList } from '../../../shared/models/result-list.model'
 import { VideoChannelInstance } from './video-channel-interface'
+import { VideoTorrentObject } from '../../../shared/models/activitypub/objects/video-torrent-object'
 
 export namespace VideoMethods {
   export type GetThumbnailName = (this: VideoInstance) => string
@@ -29,8 +30,7 @@ export namespace VideoMethods {
   export type GetVideoFilePath = (this: VideoInstance, videoFile: VideoFileInstance) => string
   export type CreateTorrentAndSetInfoHash = (this: VideoInstance, videoFile: VideoFileInstance) => Promise<void>
 
-  export type ToAddRemoteJSON = (this: VideoInstance) => Promise<RemoteVideoCreateData>
-  export type ToUpdateRemoteJSON = (this: VideoInstance) => RemoteVideoUpdateData
+  export type ToActivityPubObject = (this: VideoInstance) => VideoTorrentObject
 
   export type OptimizeOriginalVideofile = (this: VideoInstance) => Promise<void>
   export type TranscodeOriginalVideofile = (this: VideoInstance, resolution: number) => Promise<void>
@@ -40,31 +40,35 @@ export namespace VideoMethods {
   export type GetPreviewPath = (this: VideoInstance) => string
   export type GetDescriptionPath = (this: VideoInstance) => string
   export type GetTruncatedDescription = (this: VideoInstance) => string
+  export type GetCategoryLabel = (this: VideoInstance) => string
+  export type GetLicenceLabel = (this: VideoInstance) => string
+  export type GetLanguageLabel = (this: VideoInstance) => string
 
   // Return thumbnail name
   export type GenerateThumbnailFromData = (video: VideoInstance, thumbnailData: string) => Promise<string>
 
-  export type List = () => Promise<VideoInstance[]>
-  export type ListOwnedAndPopulateAuthorAndTags = () => Promise<VideoInstance[]>
-  export type ListOwnedByAuthor = (author: string) => Promise<VideoInstance[]>
+  export type List = () => Bluebird<VideoInstance[]>
+  export type ListOwnedAndPopulateAccountAndTags = () => Bluebird<VideoInstance[]>
+  export type ListOwnedByAccount = (account: string) => Bluebird<VideoInstance[]>
 
-  export type ListForApi = (start: number, count: number, sort: string) => Promise< ResultList<VideoInstance> >
-  export type ListUserVideosForApi = (userId: number, start: number, count: number, sort: string) => Promise< ResultList<VideoInstance> >
-  export type SearchAndPopulateAuthorAndPodAndTags = (
+  export type ListForApi = (start: number, count: number, sort: string) => Bluebird< ResultList<VideoInstance> >
+  export type ListUserVideosForApi = (userId: number, start: number, count: number, sort: string) => Bluebird< ResultList<VideoInstance> >
+  export type SearchAndPopulateAccountAndPodAndTags = (
     value: string,
     field: string,
     start: number,
     count: number,
     sort: string
-  ) => Promise< ResultList<VideoInstance> >
+  ) => Bluebird< ResultList<VideoInstance> >
 
-  export type Load = (id: number) => Promise<VideoInstance>
-  export type LoadByUUID = (uuid: string, t?: Sequelize.Transaction) => Promise<VideoInstance>
-  export type LoadLocalVideoByUUID = (uuid: string, t?: Sequelize.Transaction) => Promise<VideoInstance>
-  export type LoadByHostAndUUID = (fromHost: string, uuid: string, t?: Sequelize.Transaction) => Promise<VideoInstance>
-  export type LoadAndPopulateAuthor = (id: number) => Promise<VideoInstance>
-  export type LoadAndPopulateAuthorAndPodAndTags = (id: number) => Promise<VideoInstance>
-  export type LoadByUUIDAndPopulateAuthorAndPodAndTags = (uuid: string) => Promise<VideoInstance>
+  export type Load = (id: number) => Bluebird<VideoInstance>
+  export type LoadByUUID = (uuid: string, t?: Sequelize.Transaction) => Bluebird<VideoInstance>
+  export type LoadByUrl = (url: string, t?: Sequelize.Transaction) => Bluebird<VideoInstance>
+  export type LoadLocalVideoByUUID = (uuid: string, t?: Sequelize.Transaction) => Bluebird<VideoInstance>
+  export type LoadByHostAndUUID = (fromHost: string, uuid: string, t?: Sequelize.Transaction) => Bluebird<VideoInstance>
+  export type LoadAndPopulateAccount = (id: number) => Bluebird<VideoInstance>
+  export type LoadAndPopulateAccountAndPodAndTags = (id: number) => Bluebird<VideoInstance>
+  export type LoadByUUIDAndPopulateAccountAndPodAndTags = (uuid: string) => Bluebird<VideoInstance>
 
   export type RemoveThumbnail = (this: VideoInstance) => Promise<void>
   export type RemovePreview = (this: VideoInstance) => Promise<void>
@@ -77,16 +81,17 @@ export interface VideoClass {
   list: VideoMethods.List
   listForApi: VideoMethods.ListForApi
   listUserVideosForApi: VideoMethods.ListUserVideosForApi
-  listOwnedAndPopulateAuthorAndTags: VideoMethods.ListOwnedAndPopulateAuthorAndTags
-  listOwnedByAuthor: VideoMethods.ListOwnedByAuthor
+  listOwnedAndPopulateAccountAndTags: VideoMethods.ListOwnedAndPopulateAccountAndTags
+  listOwnedByAccount: VideoMethods.ListOwnedByAccount
   load: VideoMethods.Load
-  loadAndPopulateAuthor: VideoMethods.LoadAndPopulateAuthor
-  loadAndPopulateAuthorAndPodAndTags: VideoMethods.LoadAndPopulateAuthorAndPodAndTags
+  loadAndPopulateAccount: VideoMethods.LoadAndPopulateAccount
+  loadAndPopulateAccountAndPodAndTags: VideoMethods.LoadAndPopulateAccountAndPodAndTags
   loadByHostAndUUID: VideoMethods.LoadByHostAndUUID
   loadByUUID: VideoMethods.LoadByUUID
+  loadByUrl: VideoMethods.LoadByUrl
   loadLocalVideoByUUID: VideoMethods.LoadLocalVideoByUUID
-  loadByUUIDAndPopulateAuthorAndPodAndTags: VideoMethods.LoadByUUIDAndPopulateAuthorAndPodAndTags
-  searchAndPopulateAuthorAndPodAndTags: VideoMethods.SearchAndPopulateAuthorAndPodAndTags
+  loadByUUIDAndPopulateAccountAndPodAndTags: VideoMethods.LoadByUUIDAndPopulateAccountAndPodAndTags
+  searchAndPopulateAccountAndPodAndTags: VideoMethods.SearchAndPopulateAccountAndPodAndTags
 }
 
 export interface VideoAttributes {
@@ -104,7 +109,9 @@ export interface VideoAttributes {
   likes?: number
   dislikes?: number
   remote: boolean
+  url: string
 
+  parentId?: number
   channelId?: number
 
   VideoChannel?: VideoChannelInstance
@@ -132,16 +139,18 @@ export interface VideoInstance extends VideoClass, VideoAttributes, Sequelize.In
   removePreview: VideoMethods.RemovePreview
   removeThumbnail: VideoMethods.RemoveThumbnail
   removeTorrent: VideoMethods.RemoveTorrent
-  toAddRemoteJSON: VideoMethods.ToAddRemoteJSON
+  toActivityPubObject: VideoMethods.ToActivityPubObject
   toFormattedJSON: VideoMethods.ToFormattedJSON
   toFormattedDetailsJSON: VideoMethods.ToFormattedDetailsJSON
-  toUpdateRemoteJSON: VideoMethods.ToUpdateRemoteJSON
   optimizeOriginalVideofile: VideoMethods.OptimizeOriginalVideofile
   transcodeOriginalVideofile: VideoMethods.TranscodeOriginalVideofile
   getOriginalFileHeight: VideoMethods.GetOriginalFileHeight
   getEmbedPath: VideoMethods.GetEmbedPath
   getDescriptionPath: VideoMethods.GetDescriptionPath
   getTruncatedDescription: VideoMethods.GetTruncatedDescription
+  getCategoryLabel: VideoMethods.GetCategoryLabel
+  getLicenceLabel: VideoMethods.GetLicenceLabel
+  getLanguageLabel: VideoMethods.GetLanguageLabel
 
   setTags: Sequelize.HasManySetAssociationsMixin<TagAttributes, string>
   addVideoFile: Sequelize.HasManyAddAssociationMixin<VideoFileAttributes, string>
@@ -149,3 +158,4 @@ export interface VideoInstance extends VideoClass, VideoAttributes, Sequelize.In
 }
 
 export interface VideoModel extends VideoClass, Sequelize.Model<VideoInstance, VideoAttributes> {}
+
diff --git a/server/models/video/video.ts b/server/models/video/video.ts
index 02dde1726..94af1ece5 100644
--- a/server/models/video/video.ts
+++ b/server/models/video/video.ts
@@ -5,7 +5,6 @@ import { map, maxBy, truncate } from 'lodash'
 import * as parseTorrent from 'parse-torrent'
 import { join } from 'path'
 import * as Sequelize from 'sequelize'
-import * as Promise from 'bluebird'
 
 import { TagInstance } from './tag-interface'
 import {
@@ -52,6 +51,7 @@ import {
 
   VideoMethods
 } from './video-interface'
+import { VideoTorrentObject } from '../../../shared/models/activitypub/objects/video-torrent-object'
 
 let Video: Sequelize.Model<VideoInstance, VideoAttributes>
 let getOriginalFile: VideoMethods.GetOriginalFile
@@ -64,8 +64,7 @@ let getTorrentFileName: VideoMethods.GetTorrentFileName
 let isOwned: VideoMethods.IsOwned
 let toFormattedJSON: VideoMethods.ToFormattedJSON
 let toFormattedDetailsJSON: VideoMethods.ToFormattedDetailsJSON
-let toAddRemoteJSON: VideoMethods.ToAddRemoteJSON
-let toUpdateRemoteJSON: VideoMethods.ToUpdateRemoteJSON
+let toActivityPubObject: VideoMethods.ToActivityPubObject
 let optimizeOriginalVideofile: VideoMethods.OptimizeOriginalVideofile
 let transcodeOriginalVideofile: VideoMethods.TranscodeOriginalVideofile
 let createPreview: VideoMethods.CreatePreview
@@ -76,21 +75,25 @@ let getOriginalFileHeight: VideoMethods.GetOriginalFileHeight
 let getEmbedPath: VideoMethods.GetEmbedPath
 let getDescriptionPath: VideoMethods.GetDescriptionPath
 let getTruncatedDescription: VideoMethods.GetTruncatedDescription
+let getCategoryLabel: VideoMethods.GetCategoryLabel
+let getLicenceLabel: VideoMethods.GetLicenceLabel
+let getLanguageLabel: VideoMethods.GetLanguageLabel
 
 let generateThumbnailFromData: VideoMethods.GenerateThumbnailFromData
 let list: VideoMethods.List
 let listForApi: VideoMethods.ListForApi
 let listUserVideosForApi: VideoMethods.ListUserVideosForApi
 let loadByHostAndUUID: VideoMethods.LoadByHostAndUUID
-let listOwnedAndPopulateAuthorAndTags: VideoMethods.ListOwnedAndPopulateAuthorAndTags
-let listOwnedByAuthor: VideoMethods.ListOwnedByAuthor
+let listOwnedAndPopulateAccountAndTags: VideoMethods.ListOwnedAndPopulateAccountAndTags
+let listOwnedByAccount: VideoMethods.ListOwnedByAccount
 let load: VideoMethods.Load
 let loadByUUID: VideoMethods.LoadByUUID
+let loadByUrl: VideoMethods.LoadByUrl
 let loadLocalVideoByUUID: VideoMethods.LoadLocalVideoByUUID
-let loadAndPopulateAuthor: VideoMethods.LoadAndPopulateAuthor
-let loadAndPopulateAuthorAndPodAndTags: VideoMethods.LoadAndPopulateAuthorAndPodAndTags
-let loadByUUIDAndPopulateAuthorAndPodAndTags: VideoMethods.LoadByUUIDAndPopulateAuthorAndPodAndTags
-let searchAndPopulateAuthorAndPodAndTags: VideoMethods.SearchAndPopulateAuthorAndPodAndTags
+let loadAndPopulateAccount: VideoMethods.LoadAndPopulateAccount
+let loadAndPopulateAccountAndPodAndTags: VideoMethods.LoadAndPopulateAccountAndPodAndTags
+let loadByUUIDAndPopulateAccountAndPodAndTags: VideoMethods.LoadByUUIDAndPopulateAccountAndPodAndTags
+let searchAndPopulateAccountAndPodAndTags: VideoMethods.SearchAndPopulateAccountAndPodAndTags
 let removeThumbnail: VideoMethods.RemoveThumbnail
 let removePreview: VideoMethods.RemovePreview
 let removeFile: VideoMethods.RemoveFile
@@ -219,6 +222,13 @@ export default function (sequelize: Sequelize.Sequelize, DataTypes: Sequelize.Da
         type: DataTypes.BOOLEAN,
         allowNull: false,
         defaultValue: false
+      },
+      url: {
+        type: DataTypes.STRING,
+        allowNull: false,
+        validate: {
+          isUrl: true
+        }
       }
     },
     {
@@ -243,6 +253,9 @@ export default function (sequelize: Sequelize.Sequelize, DataTypes: Sequelize.Da
         },
         {
           fields: [ 'channelId' ]
+        },
+        {
+          fields: [ 'parentId' ]
         }
       ],
       hooks: {
@@ -258,16 +271,16 @@ export default function (sequelize: Sequelize.Sequelize, DataTypes: Sequelize.Da
     list,
     listForApi,
     listUserVideosForApi,
-    listOwnedAndPopulateAuthorAndTags,
-    listOwnedByAuthor,
+    listOwnedAndPopulateAccountAndTags,
+    listOwnedByAccount,
     load,
-    loadAndPopulateAuthor,
-    loadAndPopulateAuthorAndPodAndTags,
+    loadAndPopulateAccount,
+    loadAndPopulateAccountAndPodAndTags,
     loadByHostAndUUID,
     loadByUUID,
     loadLocalVideoByUUID,
-    loadByUUIDAndPopulateAuthorAndPodAndTags,
-    searchAndPopulateAuthorAndPodAndTags
+    loadByUUIDAndPopulateAccountAndPodAndTags,
+    searchAndPopulateAccountAndPodAndTags
   ]
   const instanceMethods = [
     createPreview,
@@ -286,16 +299,18 @@ export default function (sequelize: Sequelize.Sequelize, DataTypes: Sequelize.Da
     removePreview,
     removeThumbnail,
     removeTorrent,
-    toAddRemoteJSON,
+    toActivityPubObject,
     toFormattedJSON,
     toFormattedDetailsJSON,
-    toUpdateRemoteJSON,
     optimizeOriginalVideofile,
     transcodeOriginalVideofile,
     getOriginalFileHeight,
     getEmbedPath,
     getTruncatedDescription,
-    getDescriptionPath
+    getDescriptionPath,
+    getCategoryLabel,
+    getLicenceLabel,
+    getLanguageLabel
   ]
   addMethodsToModel(Video, classMethods, instanceMethods)
 
@@ -313,6 +328,14 @@ function associate (models) {
     onDelete: 'cascade'
   })
 
+  Video.belongsTo(models.VideoChannel, {
+    foreignKey: {
+      name: 'parentId',
+      allowNull: true
+    },
+    onDelete: 'cascade'
+  })
+
   Video.belongsToMany(models.Tag, {
     foreignKey: 'videoId',
     through: models.VideoTag,
@@ -423,7 +446,7 @@ getVideoFilePath = function (this: VideoInstance, videoFile: VideoFileInstance)
   return join(CONFIG.STORAGE.VIDEOS_DIR, this.getVideoFilename(videoFile))
 }
 
-createTorrentAndSetInfoHash = function (this: VideoInstance, videoFile: VideoFileInstance) {
+createTorrentAndSetInfoHash = async function (this: VideoInstance, videoFile: VideoFileInstance) {
   const options = {
     announceList: [
       [ CONFIG.WEBSERVER.WS + '://' + CONFIG.WEBSERVER.HOSTNAME + ':' + CONFIG.WEBSERVER.PORT + '/tracker/socket' ]
@@ -433,18 +456,15 @@ createTorrentAndSetInfoHash = function (this: VideoInstance, videoFile: VideoFil
     ]
   }
 
-  return createTorrentPromise(this.getVideoFilePath(videoFile), options)
-    .then(torrent => {
-      const filePath = join(CONFIG.STORAGE.TORRENTS_DIR, this.getTorrentFileName(videoFile))
-      logger.info('Creating torrent %s.', filePath)
+  const torrent = await createTorrentPromise(this.getVideoFilePath(videoFile), options)
 
-      return writeFilePromise(filePath, torrent).then(() => torrent)
-    })
-    .then(torrent => {
-      const parsedTorrent = parseTorrent(torrent)
+  const filePath = join(CONFIG.STORAGE.TORRENTS_DIR, this.getTorrentFileName(videoFile))
+  logger.info('Creating torrent %s.', filePath)
 
-      videoFile.infoHash = parsedTorrent.infoHash
-    })
+  await writeFilePromise(filePath, torrent)
+
+  const parsedTorrent = parseTorrent(torrent)
+  videoFile.infoHash = parsedTorrent.infoHash
 }
 
 getEmbedPath = function (this: VideoInstance) {
@@ -462,40 +482,28 @@ getPreviewPath = function (this: VideoInstance) {
 toFormattedJSON = function (this: VideoInstance) {
   let podHost
 
-  if (this.VideoChannel.Author.Pod) {
-    podHost = this.VideoChannel.Author.Pod.host
+  if (this.VideoChannel.Account.Pod) {
+    podHost = this.VideoChannel.Account.Pod.host
   } else {
     // It means it's our video
     podHost = CONFIG.WEBSERVER.HOST
   }
 
-  // Maybe our pod is not up to date and there are new categories since our version
-  let categoryLabel = VIDEO_CATEGORIES[this.category]
-  if (!categoryLabel) categoryLabel = 'Misc'
-
-  // Maybe our pod is not up to date and there are new licences since our version
-  let licenceLabel = VIDEO_LICENCES[this.licence]
-  if (!licenceLabel) licenceLabel = 'Unknown'
-
-  // Language is an optional attribute
-  let languageLabel = VIDEO_LANGUAGES[this.language]
-  if (!languageLabel) languageLabel = 'Unknown'
-
   const json = {
     id: this.id,
     uuid: this.uuid,
     name: this.name,
     category: this.category,
-    categoryLabel,
+    categoryLabel: this.getCategoryLabel(),
     licence: this.licence,
-    licenceLabel,
+    licenceLabel: this.getLicenceLabel(),
     language: this.language,
-    languageLabel,
+    languageLabel: this.getLanguageLabel(),
     nsfw: this.nsfw,
     description: this.getTruncatedDescription(),
     podHost,
     isLocal: this.isOwned(),
-    author: this.VideoChannel.Author.name,
+    account: this.VideoChannel.Account.name,
     duration: this.duration,
     views: this.views,
     likes: this.likes,
@@ -552,75 +560,75 @@ toFormattedDetailsJSON = function (this: VideoInstance) {
   return Object.assign(formattedJson, detailsJson)
 }
 
-toAddRemoteJSON = function (this: VideoInstance) {
-  // Get thumbnail data to send to the other pod
-  const thumbnailPath = join(CONFIG.STORAGE.THUMBNAILS_DIR, this.getThumbnailName())
+toActivityPubObject = function (this: VideoInstance) {
+  const { baseUrlHttp, baseUrlWs } = getBaseUrls(this)
 
-  return readFileBufferPromise(thumbnailPath).then(thumbnailData => {
-    const remoteVideo = {
-      uuid: this.uuid,
-      name: this.name,
-      category: this.category,
-      licence: this.licence,
-      language: this.language,
-      nsfw: this.nsfw,
-      truncatedDescription: this.getTruncatedDescription(),
-      channelUUID: this.VideoChannel.uuid,
-      duration: this.duration,
-      thumbnailData: thumbnailData.toString('binary'),
-      tags: map<TagInstance, string>(this.Tags, 'name'),
-      createdAt: this.createdAt,
-      updatedAt: this.updatedAt,
-      views: this.views,
-      likes: this.likes,
-      dislikes: this.dislikes,
-      privacy: this.privacy,
-      files: []
-    }
+  const tag = this.Tags.map(t => ({
+    type: 'Hashtag',
+    name: t.name
+  }))
+
+  const url = []
+  for (const file of this.VideoFiles) {
+    url.push({
+      type: 'Link',
+      mimeType: 'video/' + file.extname,
+      url: getVideoFileUrl(this, file, baseUrlHttp),
+      width: file.resolution,
+      size: file.size
+    })
 
-    this.VideoFiles.forEach(videoFile => {
-      remoteVideo.files.push({
-        infoHash: videoFile.infoHash,
-        resolution: videoFile.resolution,
-        extname: videoFile.extname,
-        size: videoFile.size
-      })
+    url.push({
+      type: 'Link',
+      mimeType: 'application/x-bittorrent',
+      url: getTorrentUrl(this, file, baseUrlHttp),
+      width: file.resolution
     })
 
-    return remoteVideo
-  })
-}
+    url.push({
+      type: 'Link',
+      mimeType: 'application/x-bittorrent;x-scheme-handler/magnet',
+      url: generateMagnetUri(this, file, baseUrlHttp, baseUrlWs),
+      width: file.resolution
+    })
+  }
 
-toUpdateRemoteJSON = function (this: VideoInstance) {
-  const json = {
-    uuid: this.uuid,
+  const videoObject: VideoTorrentObject = {
+    type: 'Video',
     name: this.name,
-    category: this.category,
-    licence: this.licence,
-    language: this.language,
-    nsfw: this.nsfw,
-    truncatedDescription: this.getTruncatedDescription(),
-    duration: this.duration,
-    tags: map<TagInstance, string>(this.Tags, 'name'),
-    createdAt: this.createdAt,
-    updatedAt: this.updatedAt,
+    // https://www.w3.org/TR/activitystreams-vocabulary/#dfn-duration
+    duration: 'PT' + this.duration + 'S',
+    uuid: this.uuid,
+    tag,
+    category: {
+      id: this.category,
+      label: this.getCategoryLabel()
+    },
+    licence: {
+      id: this.licence,
+      name: this.getLicenceLabel()
+    },
+    language: {
+      id: this.language,
+      name: this.getLanguageLabel()
+    },
     views: this.views,
-    likes: this.likes,
-    dislikes: this.dislikes,
-    privacy: this.privacy,
-    files: []
+    nsfw: this.nsfw,
+    published: this.createdAt,
+    updated: this.updatedAt,
+    mediaType: 'text/markdown',
+    content: this.getTruncatedDescription(),
+    icon: {
+      type: 'Image',
+      url: getThumbnailUrl(this, baseUrlHttp),
+      mediaType: 'image/jpeg',
+      width: THUMBNAILS_SIZE.width,
+      height: THUMBNAILS_SIZE.height
+    },
+    url
   }
 
-  this.VideoFiles.forEach(videoFile => {
-    json.files.push({
-      infoHash: videoFile.infoHash,
-      resolution: videoFile.resolution,
-      extname: videoFile.extname,
-      size: videoFile.size
-    })
-  })
-
-  return json
+  return videoObject
 }
 
 getTruncatedDescription = function (this: VideoInstance) {
@@ -631,7 +639,7 @@ getTruncatedDescription = function (this: VideoInstance) {
   return truncate(this.description, options)
 }
 
-optimizeOriginalVideofile = function (this: VideoInstance) {
+optimizeOriginalVideofile = async function (this: VideoInstance) {
   const videosDirectory = CONFIG.STORAGE.VIDEOS_DIR
   const newExtname = '.mp4'
   const inputVideoFile = this.getOriginalFile()
@@ -643,40 +651,32 @@ optimizeOriginalVideofile = function (this: VideoInstance) {
     outputPath: videoOutputPath
   }
 
-  return transcode(transcodeOptions)
-    .then(() => {
-      return unlinkPromise(videoInputPath)
-    })
-    .then(() => {
-      // Important to do this before getVideoFilename() to take in account the new file extension
-      inputVideoFile.set('extname', newExtname)
+  try {
+    // Could be very long!
+    await transcode(transcodeOptions)
 
-      return renamePromise(videoOutputPath, this.getVideoFilePath(inputVideoFile))
-    })
-    .then(() => {
-      return statPromise(this.getVideoFilePath(inputVideoFile))
-    })
-    .then(stats => {
-      return inputVideoFile.set('size', stats.size)
-    })
-    .then(() => {
-      return this.createTorrentAndSetInfoHash(inputVideoFile)
-    })
-    .then(() => {
-      return inputVideoFile.save()
-    })
-    .then(() => {
-      return undefined
-    })
-    .catch(err => {
-      // Auto destruction...
-      this.destroy().catch(err => logger.error('Cannot destruct video after transcoding failure.', err))
+    await unlinkPromise(videoInputPath)
 
-      throw err
-    })
+    // Important to do this before getVideoFilename() to take in account the new file extension
+    inputVideoFile.set('extname', newExtname)
+
+    await renamePromise(videoOutputPath, this.getVideoFilePath(inputVideoFile))
+    const stats = await statPromise(this.getVideoFilePath(inputVideoFile))
+
+    inputVideoFile.set('size', stats.size)
+
+    await this.createTorrentAndSetInfoHash(inputVideoFile)
+    await inputVideoFile.save()
+
+  } catch (err) {
+    // Auto destruction...
+    this.destroy().catch(err => logger.error('Cannot destruct video after transcoding failure.', err))
+
+    throw err
+  }
 }
 
-transcodeOriginalVideofile = function (this: VideoInstance, resolution: VideoResolution) {
+transcodeOriginalVideofile = async function (this: VideoInstance, resolution: VideoResolution) {
   const videosDirectory = CONFIG.STORAGE.VIDEOS_DIR
   const extname = '.mp4'
 
@@ -696,25 +696,18 @@ transcodeOriginalVideofile = function (this: VideoInstance, resolution: VideoRes
     outputPath: videoOutputPath,
     resolution
   }
-  return transcode(transcodeOptions)
-    .then(() => {
-      return statPromise(videoOutputPath)
-    })
-    .then(stats => {
-      newVideoFile.set('size', stats.size)
 
-      return undefined
-    })
-    .then(() => {
-      return this.createTorrentAndSetInfoHash(newVideoFile)
-    })
-    .then(() => {
-      return newVideoFile.save()
-    })
-    .then(() => {
-      return this.VideoFiles.push(newVideoFile)
-    })
-    .then(() => undefined)
+  await transcode(transcodeOptions)
+
+  const stats = await statPromise(videoOutputPath)
+
+  newVideoFile.set('size', stats.size)
+
+  await this.createTorrentAndSetInfoHash(newVideoFile)
+
+  await newVideoFile.save()
+
+  this.VideoFiles.push(newVideoFile)
 }
 
 getOriginalFileHeight = function (this: VideoInstance) {
@@ -727,6 +720,31 @@ getDescriptionPath = function (this: VideoInstance) {
   return `/api/${API_VERSION}/videos/${this.uuid}/description`
 }
 
+getCategoryLabel = function (this: VideoInstance) {
+  let categoryLabel = VIDEO_CATEGORIES[this.category]
+
+  // Maybe our pod is not up to date and there are new categories since our version
+  if (!categoryLabel) categoryLabel = 'Misc'
+
+  return categoryLabel
+}
+
+getLicenceLabel = function (this: VideoInstance) {
+  let licenceLabel = VIDEO_LICENCES[this.licence]
+  // Maybe our pod is not up to date and there are new licences since our version
+  if (!licenceLabel) licenceLabel = 'Unknown'
+
+  return licenceLabel
+}
+
+getLanguageLabel = function (this: VideoInstance) {
+  // Language is an optional attribute
+  let languageLabel = VIDEO_LANGUAGES[this.language]
+  if (!languageLabel) languageLabel = 'Unknown'
+
+  return languageLabel
+}
+
 removeThumbnail = function (this: VideoInstance) {
   const thumbnailPath = join(CONFIG.STORAGE.THUMBNAILS_DIR, this.getThumbnailName())
   return unlinkPromise(thumbnailPath)
@@ -779,7 +797,7 @@ listUserVideosForApi = function (userId: number, start: number, count: number, s
         required: true,
         include: [
           {
-            model: Video['sequelize'].models.Author,
+            model: Video['sequelize'].models.Account,
             where: {
               userId
             },
@@ -810,7 +828,7 @@ listForApi = function (start: number, count: number, sort: string) {
         model: Video['sequelize'].models.VideoChannel,
         include: [
           {
-            model: Video['sequelize'].models.Author,
+            model: Video['sequelize'].models.Account,
             include: [
               {
                 model: Video['sequelize'].models.Pod,
@@ -846,7 +864,7 @@ loadByHostAndUUID = function (fromHost: string, uuid: string, t?: Sequelize.Tran
         model: Video['sequelize'].models.VideoChannel,
         include: [
           {
-            model: Video['sequelize'].models.Author,
+            model: Video['sequelize'].models.Account,
             include: [
               {
                 model: Video['sequelize'].models.Pod,
@@ -867,7 +885,7 @@ loadByHostAndUUID = function (fromHost: string, uuid: string, t?: Sequelize.Tran
   return Video.findOne(query)
 }
 
-listOwnedAndPopulateAuthorAndTags = function () {
+listOwnedAndPopulateAccountAndTags = function () {
   const query = {
     where: {
       remote: false
@@ -876,7 +894,7 @@ listOwnedAndPopulateAuthorAndTags = function () {
       Video['sequelize'].models.VideoFile,
       {
         model: Video['sequelize'].models.VideoChannel,
-        include: [ Video['sequelize'].models.Author ]
+        include: [ Video['sequelize'].models.Account ]
       },
       Video['sequelize'].models.Tag
     ]
@@ -885,7 +903,7 @@ listOwnedAndPopulateAuthorAndTags = function () {
   return Video.findAll(query)
 }
 
-listOwnedByAuthor = function (author: string) {
+listOwnedByAccount = function (account: string) {
   const query = {
     where: {
       remote: false
@@ -898,9 +916,9 @@ listOwnedByAuthor = function (author: string) {
         model: Video['sequelize'].models.VideoChannel,
         include: [
           {
-            model: Video['sequelize'].models.Author,
+            model: Video['sequelize'].models.Account,
             where: {
-              name: author
+              name: account
             }
           }
         ]
@@ -942,13 +960,13 @@ loadLocalVideoByUUID = function (uuid: string, t?: Sequelize.Transaction) {
   return Video.findOne(query)
 }
 
-loadAndPopulateAuthor = function (id: number) {
+loadAndPopulateAccount = function (id: number) {
   const options = {
     include: [
       Video['sequelize'].models.VideoFile,
       {
         model: Video['sequelize'].models.VideoChannel,
-        include: [ Video['sequelize'].models.Author ]
+        include: [ Video['sequelize'].models.Account ]
       }
     ]
   }
@@ -956,14 +974,14 @@ loadAndPopulateAuthor = function (id: number) {
   return Video.findById(id, options)
 }
 
-loadAndPopulateAuthorAndPodAndTags = function (id: number) {
+loadAndPopulateAccountAndPodAndTags = function (id: number) {
   const options = {
     include: [
       {
         model: Video['sequelize'].models.VideoChannel,
         include: [
           {
-            model: Video['sequelize'].models.Author,
+            model: Video['sequelize'].models.Account,
             include: [ { model: Video['sequelize'].models.Pod, required: false } ]
           }
         ]
@@ -976,7 +994,7 @@ loadAndPopulateAuthorAndPodAndTags = function (id: number) {
   return Video.findById(id, options)
 }
 
-loadByUUIDAndPopulateAuthorAndPodAndTags = function (uuid: string) {
+loadByUUIDAndPopulateAccountAndPodAndTags = function (uuid: string) {
   const options = {
     where: {
       uuid
@@ -986,7 +1004,7 @@ loadByUUIDAndPopulateAuthorAndPodAndTags = function (uuid: string) {
         model: Video['sequelize'].models.VideoChannel,
         include: [
           {
-            model: Video['sequelize'].models.Author,
+            model: Video['sequelize'].models.Account,
             include: [ { model: Video['sequelize'].models.Pod, required: false } ]
           }
         ]
@@ -999,20 +1017,20 @@ loadByUUIDAndPopulateAuthorAndPodAndTags = function (uuid: string) {
   return Video.findOne(options)
 }
 
-searchAndPopulateAuthorAndPodAndTags = function (value: string, field: string, start: number, count: number, sort: string) {
+searchAndPopulateAccountAndPodAndTags = function (value: string, field: string, start: number, count: number, sort: string) {
   const podInclude: Sequelize.IncludeOptions = {
     model: Video['sequelize'].models.Pod,
     required: false
   }
 
-  const authorInclude: Sequelize.IncludeOptions = {
-    model: Video['sequelize'].models.Author,
+  const accountInclude: Sequelize.IncludeOptions = {
+    model: Video['sequelize'].models.Account,
     include: [ podInclude ]
   }
 
   const videoChannelInclude: Sequelize.IncludeOptions = {
     model: Video['sequelize'].models.VideoChannel,
-    include: [ authorInclude ],
+    include: [ accountInclude ],
     required: true
   }
 
@@ -1045,8 +1063,8 @@ searchAndPopulateAuthorAndPodAndTags = function (value: string, field: string, s
       }
     }
     podInclude.required = true
-  } else if (field === 'author') {
-    authorInclude.where = {
+  } else if (field === 'account') {
+    accountInclude.where = {
       name: {
         [Sequelize.Op.iLike]: '%' + value + '%'
       }
@@ -1090,13 +1108,17 @@ function getBaseUrls (video: VideoInstance) {
     baseUrlHttp = CONFIG.WEBSERVER.URL
     baseUrlWs = CONFIG.WEBSERVER.WS + '://' + CONFIG.WEBSERVER.HOSTNAME + ':' + CONFIG.WEBSERVER.PORT
   } else {
-    baseUrlHttp = REMOTE_SCHEME.HTTP + '://' + video.VideoChannel.Author.Pod.host
-    baseUrlWs = REMOTE_SCHEME.WS + '://' + video.VideoChannel.Author.Pod.host
+    baseUrlHttp = REMOTE_SCHEME.HTTP + '://' + video.VideoChannel.Account.Pod.host
+    baseUrlWs = REMOTE_SCHEME.WS + '://' + video.VideoChannel.Account.Pod.host
   }
 
   return { baseUrlHttp, baseUrlWs }
 }
 
+function getThumbnailUrl (video: VideoInstance, baseUrlHttp: string) {
+  return baseUrlHttp + STATIC_PATHS.THUMBNAILS + video.getThumbnailName()
+}
+
 function getTorrentUrl (video: VideoInstance, videoFile: VideoFileInstance, baseUrlHttp: string) {
   return baseUrlHttp + STATIC_PATHS.TORRENTS + video.getTorrentFileName(videoFile)
 }