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diff --git a/server/models/abuse/abuse.ts b/server/models/abuse/abuse.ts
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+import * as Bluebird from 'bluebird'
+import { invert } from 'lodash'
+import { literal, Op, WhereOptions } from 'sequelize'
+import {
+  AllowNull,
+  BelongsTo,
+  Column,
+  CreatedAt,
+  DataType,
+  Default,
+  ForeignKey,
+  HasOne,
+  Is,
+  Model,
+  Scopes,
+  Table,
+  UpdatedAt
+} from 'sequelize-typescript'
+import { isAbuseModerationCommentValid, isAbuseReasonValid, isAbuseStateValid } from '@server/helpers/custom-validators/abuses'
+import {
+  Abuse,
+  AbuseObject,
+  AbusePredefinedReasons,
+  abusePredefinedReasonsMap,
+  AbusePredefinedReasonsString,
+  AbuseState,
+  AbuseVideoIs,
+  VideoAbuse
+} from '@shared/models'
+import { AbuseFilter } from '@shared/models/moderation/abuse/abuse-filter'
+import { CONSTRAINTS_FIELDS, ABUSE_STATES } from '../../initializers/constants'
+import { MAbuse, MAbuseAP, MAbuseFormattable, MUserAccountId } from '../../types/models'
+import { AccountModel, ScopeNames as AccountScopeNames } from '../account/account'
+import { buildBlockedAccountSQL, getSort, searchAttribute, throwIfNotValid } from '../utils'
+import { ThumbnailModel } from '../video/thumbnail'
+import { VideoModel } from '../video/video'
+import { VideoBlacklistModel } from '../video/video-blacklist'
+import { ScopeNames as VideoChannelScopeNames, SummaryOptions, VideoChannelModel } from '../video/video-channel'
+import { VideoAbuseModel } from './video-abuse'
+import { VideoCommentAbuseModel } from './video-comment-abuse'
+
+export enum ScopeNames {
+  FOR_API = 'FOR_API'
+}
+
+@Scopes(() => ({
+  [ScopeNames.FOR_API]: (options: {
+    // search
+    search?: string
+    searchReporter?: string
+    searchReportee?: string
+
+    // video releated
+    searchVideo?: string
+    searchVideoChannel?: string
+    videoIs?: AbuseVideoIs
+
+    // filters
+    id?: number
+    predefinedReasonId?: number
+    filter?: AbuseFilter
+
+    state?: AbuseState
+
+    // accountIds
+    serverAccountId: number
+    userAccountId: number
+  }) => {
+    const onlyBlacklisted = options.videoIs === 'blacklisted'
+    const videoRequired = !!(onlyBlacklisted || options.searchVideo || options.searchVideoChannel)
+
+    const where = {
+      reporterAccountId: {
+        [Op.notIn]: literal('(' + buildBlockedAccountSQL([ options.serverAccountId, options.userAccountId ]) + ')')
+      }
+    }
+
+    if (options.search) {
+      const escapedSearch = AbuseModel.sequelize.escape('%' + options.search + '%')
+
+      Object.assign(where, {
+        [Op.or]: [
+          {
+            [Op.and]: [
+              { '$VideoAbuse.videoId$': { [Op.not]: null } },
+              searchAttribute(options.search, '$VideoAbuse.Video.name$')
+            ]
+          },
+          {
+            [Op.and]: [
+              { '$VideoAbuse.videoId$': { [Op.not]: null } },
+              searchAttribute(options.search, '$VideoAbuse.Video.VideoChannel.name$')
+            ]
+          },
+          {
+            [Op.and]: [
+              { '$VideoAbuse.deletedVideo$': { [Op.not]: null } },
+              literal(`"VideoAbuse"."deletedVideo"->>'name' ILIKE ${escapedSearch}`)
+            ]
+          },
+          {
+            [Op.and]: [
+              { '$VideoAbuse.deletedVideo$': { [Op.not]: null } },
+              literal(`"VideoAbuse"."deletedVideo"->'channel'->>'displayName' ILIKE ${escapedSearch}`)
+            ]
+          },
+          searchAttribute(options.search, '$ReporterAccount.name$'),
+          searchAttribute(options.search, '$FlaggedAccount.name$')
+        ]
+      })
+    }
+
+    if (options.id) Object.assign(where, { id: options.id })
+    if (options.state) Object.assign(where, { state: options.state })
+
+    if (options.videoIs === 'deleted') {
+      Object.assign(where, {
+        '$VideoAbuse.deletedVideo$': {
+          [Op.not]: null
+        }
+      })
+    }
+
+    if (options.predefinedReasonId) {
+      Object.assign(where, {
+        predefinedReasons: {
+          [Op.contains]: [ options.predefinedReasonId ]
+        }
+      })
+    }
+
+    return {
+      attributes: {
+        include: [
+          [
+            // we don't care about this count for deleted videos, so there are not included
+            literal(
+              '(' +
+                'SELECT count(*) ' +
+                'FROM "videoAbuse" ' +
+                'WHERE "videoId" = "VideoAbuse"."videoId" ' +
+              ')'
+            ),
+            'countReportsForVideo'
+          ],
+          [
+            // we don't care about this count for deleted videos, so there are not included
+            literal(
+              '(' +
+                'SELECT t.nth ' +
+                'FROM ( ' +
+                  'SELECT id, ' +
+                         'row_number() OVER (PARTITION BY "videoId" ORDER BY "createdAt") AS nth ' +
+                  'FROM "videoAbuse" ' +
+                ') t ' +
+                'WHERE t.id = "VideoAbuse".id' +
+              ')'
+            ),
+            'nthReportForVideo'
+          ],
+          [
+            literal(
+              '(' +
+                'SELECT count("videoAbuse"."id") ' +
+                'FROM "videoAbuse" ' +
+                'INNER JOIN "video" ON "video"."id" = "videoAbuse"."videoId" ' +
+                'INNER JOIN "videoChannel" ON "videoChannel"."id" = "video"."channelId" ' +
+                'INNER JOIN "account" ON "videoChannel"."accountId" = "account"."id" ' +
+                'WHERE "account"."id" = "AbuseModel"."reporterAccountId" ' +
+              ')'
+            ),
+            'countReportsForReporter__video'
+          ],
+          [
+            literal(
+              '(' +
+                'SELECT count(DISTINCT "videoAbuse"."id") ' +
+                'FROM "videoAbuse" ' +
+                `WHERE CAST("deletedVideo"->'channel'->'ownerAccount'->>'id' AS INTEGER) = "AbuseModel"."reporterAccountId" ` +
+              ')'
+            ),
+            'countReportsForReporter__deletedVideo'
+          ],
+          [
+            literal(
+              '(' +
+                'SELECT count(DISTINCT "videoAbuse"."id") ' +
+                'FROM "videoAbuse" ' +
+                'INNER JOIN "video" ON "video"."id" = "videoAbuse"."videoId" ' +
+                'INNER JOIN "videoChannel" ON "videoChannel"."id" = "video"."channelId" ' +
+                'INNER JOIN "account" ON ' +
+                      '"videoChannel"."accountId" = "VideoAbuse->Video->VideoChannel"."accountId" ' +
+                   `OR "videoChannel"."accountId" = CAST("VideoAbuse"."deletedVideo"->'channel'->'ownerAccount'->>'id' AS INTEGER) ` +
+              ')'
+            ),
+            'countReportsForReportee__video'
+          ],
+          [
+            literal(
+              '(' +
+                'SELECT count(DISTINCT "videoAbuse"."id") ' +
+                'FROM "videoAbuse" ' +
+                `WHERE CAST("deletedVideo"->'channel'->'ownerAccount'->>'id' AS INTEGER) = "VideoAbuse->Video->VideoChannel"."accountId" ` +
+                   `OR CAST("deletedVideo"->'channel'->'ownerAccount'->>'id' AS INTEGER) = ` +
+                      `CAST("VideoAbuse"."deletedVideo"->'channel'->'ownerAccount'->>'id' AS INTEGER) ` +
+              ')'
+            ),
+            'countReportsForReportee__deletedVideo'
+          ]
+        ]
+      },
+      include: [
+        {
+          model: AccountModel.scope(AccountScopeNames.SUMMARY),
+          as: 'ReporterAccount',
+          required: true,
+          where: searchAttribute(options.searchReporter, 'name')
+        },
+        {
+          model: AccountModel.scope(AccountScopeNames.SUMMARY),
+          as: 'FlaggedAccount',
+          required: true,
+          where: searchAttribute(options.searchReportee, 'name')
+        },
+        {
+          model: VideoAbuseModel,
+          required: options.filter === 'video' || !!options.videoIs || videoRequired,
+          include: [
+            {
+              model: VideoModel,
+              required: videoRequired,
+              where: searchAttribute(options.searchVideo, 'name'),
+              include: [
+                {
+                  model: ThumbnailModel
+                },
+                {
+                  model: VideoChannelModel.scope({ method: [ VideoChannelScopeNames.SUMMARY, { withAccount: false } as SummaryOptions ] }),
+                  where: searchAttribute(options.searchVideoChannel, 'name'),
+                  required: true,
+                  include: [
+                    {
+                      model: AccountModel.scope(AccountScopeNames.SUMMARY),
+                      required: true,
+                      where: searchAttribute(options.searchReportee, 'name')
+                    }
+                  ]
+                },
+                {
+                  attributes: [ 'id', 'reason', 'unfederated' ],
+                  model: VideoBlacklistModel,
+                  required: onlyBlacklisted
+                }
+              ]
+            }
+          ]
+        }
+      ],
+      where
+    }
+  }
+}))
+@Table({
+  tableName: 'abuse',
+  indexes: [
+    {
+      fields: [ 'reporterAccountId' ]
+    },
+    {
+      fields: [ 'flaggedAccountId' ]
+    }
+  ]
+})
+export class AbuseModel extends Model<AbuseModel> {
+
+  @AllowNull(false)
+  @Default(null)
+  @Is('VideoAbuseReason', value => throwIfNotValid(value, isAbuseReasonValid, 'reason'))
+  @Column(DataType.STRING(CONSTRAINTS_FIELDS.ABUSES.REASON.max))
+  reason: string
+
+  @AllowNull(false)
+  @Default(null)
+  @Is('VideoAbuseState', value => throwIfNotValid(value, isAbuseStateValid, 'state'))
+  @Column
+  state: AbuseState
+
+  @AllowNull(true)
+  @Default(null)
+  @Is('VideoAbuseModerationComment', value => throwIfNotValid(value, isAbuseModerationCommentValid, 'moderationComment', true))
+  @Column(DataType.STRING(CONSTRAINTS_FIELDS.ABUSES.MODERATION_COMMENT.max))
+  moderationComment: string
+
+  @AllowNull(true)
+  @Default(null)
+  @Column(DataType.ARRAY(DataType.INTEGER))
+  predefinedReasons: AbusePredefinedReasons[]
+
+  @CreatedAt
+  createdAt: Date
+
+  @UpdatedAt
+  updatedAt: Date
+
+  @ForeignKey(() => AccountModel)
+  @Column
+  reporterAccountId: number
+
+  @BelongsTo(() => AccountModel, {
+    foreignKey: {
+      name: 'reporterAccountId',
+      allowNull: true
+    },
+    as: 'ReporterAccount',
+    onDelete: 'set null'
+  })
+  ReporterAccount: AccountModel
+
+  @ForeignKey(() => AccountModel)
+  @Column
+  flaggedAccountId: number
+
+  @BelongsTo(() => AccountModel, {
+    foreignKey: {
+      name: 'flaggedAccountId',
+      allowNull: true
+    },
+    as: 'FlaggedAccount',
+    onDelete: 'set null'
+  })
+  FlaggedAccount: AccountModel
+
+  @HasOne(() => VideoCommentAbuseModel, {
+    foreignKey: {
+      name: 'abuseId',
+      allowNull: false
+    },
+    onDelete: 'cascade'
+  })
+  VideoCommentAbuse: VideoCommentAbuseModel
+
+  @HasOne(() => VideoAbuseModel, {
+    foreignKey: {
+      name: 'abuseId',
+      allowNull: false
+    },
+    onDelete: 'cascade'
+  })
+  VideoAbuse: VideoAbuseModel
+
+  static loadByIdAndVideoId (id: number, videoId?: number, uuid?: string): Bluebird<MAbuse> {
+    const videoWhere: WhereOptions = {}
+
+    if (videoId) videoWhere.videoId = videoId
+    if (uuid) videoWhere.deletedVideo = { uuid }
+
+    const query = {
+      include: [
+        {
+          model: VideoAbuseModel,
+          required: true,
+          where: videoWhere
+        }
+      ],
+      where: {
+        id
+      }
+    }
+    return AbuseModel.findOne(query)
+  }
+
+  static listForApi (parameters: {
+    start: number
+    count: number
+    sort: string
+
+    filter?: AbuseFilter
+
+    serverAccountId: number
+    user?: MUserAccountId
+
+    id?: number
+    predefinedReason?: AbusePredefinedReasonsString
+    state?: AbuseState
+    videoIs?: AbuseVideoIs
+
+    search?: string
+    searchReporter?: string
+    searchReportee?: string
+    searchVideo?: string
+    searchVideoChannel?: string
+  }) {
+    const {
+      start,
+      count,
+      sort,
+      search,
+      user,
+      serverAccountId,
+      state,
+      videoIs,
+      predefinedReason,
+      searchReportee,
+      searchVideo,
+      filter,
+      searchVideoChannel,
+      searchReporter,
+      id
+    } = parameters
+
+    const userAccountId = user ? user.Account.id : undefined
+    const predefinedReasonId = predefinedReason ? abusePredefinedReasonsMap[predefinedReason] : undefined
+
+    const query = {
+      offset: start,
+      limit: count,
+      order: getSort(sort),
+      col: 'AbuseModel.id',
+      distinct: true
+    }
+
+    const filters = {
+      id,
+      filter,
+      predefinedReasonId,
+      search,
+      state,
+      videoIs,
+      searchReportee,
+      searchVideo,
+      searchVideoChannel,
+      searchReporter,
+      serverAccountId,
+      userAccountId
+    }
+
+    return AbuseModel
+      .scope([
+        { method: [ ScopeNames.FOR_API, filters ] }
+      ])
+      .findAndCountAll(query)
+      .then(({ rows, count }) => {
+        return { total: count, data: rows }
+      })
+  }
+
+  toFormattedJSON (this: MAbuseFormattable): Abuse {
+    const predefinedReasons = AbuseModel.getPredefinedReasonsStrings(this.predefinedReasons)
+    const countReportsForVideo = this.get('countReportsForVideo') as number
+    const nthReportForVideo = this.get('nthReportForVideo') as number
+    const countReportsForReporterVideo = this.get('countReportsForReporter__video') as number
+    const countReportsForReporterDeletedVideo = this.get('countReportsForReporter__deletedVideo') as number
+    const countReportsForReporteeVideo = this.get('countReportsForReportee__video') as number
+    const countReportsForReporteeDeletedVideo = this.get('countReportsForReportee__deletedVideo') as number
+
+    let video: VideoAbuse
+
+    if (this.VideoAbuse) {
+      const abuseModel = this.VideoAbuse
+      const entity = abuseModel.Video || abuseModel.deletedVideo
+
+      video = {
+        id: entity.id,
+        uuid: entity.uuid,
+        name: entity.name,
+        nsfw: entity.nsfw,
+
+        startAt: abuseModel.startAt,
+        endAt: abuseModel.endAt,
+
+        deleted: !abuseModel.Video,
+        blacklisted: abuseModel.Video?.isBlacklisted() || false,
+        thumbnailPath: abuseModel.Video?.getMiniatureStaticPath(),
+        channel: abuseModel.Video?.VideoChannel.toFormattedJSON() || abuseModel.deletedVideo?.channel
+      }
+    }
+
+    return {
+      id: this.id,
+      reason: this.reason,
+      predefinedReasons,
+
+      reporterAccount: this.ReporterAccount.toFormattedJSON(),
+
+      state: {
+        id: this.state,
+        label: AbuseModel.getStateLabel(this.state)
+      },
+
+      moderationComment: this.moderationComment,
+
+      video,
+      comment: null,
+
+      createdAt: this.createdAt,
+      updatedAt: this.updatedAt,
+      count: countReportsForVideo || 0,
+      nth: nthReportForVideo || 0,
+      countReportsForReporter: (countReportsForReporterVideo || 0) + (countReportsForReporterDeletedVideo || 0),
+      countReportsForReportee: (countReportsForReporteeVideo || 0) + (countReportsForReporteeDeletedVideo || 0),
+
+      // FIXME: deprecated in 2.3, remove this
+      startAt: null,
+      endAt: null
+    }
+  }
+
+  toActivityPubObject (this: MAbuseAP): AbuseObject {
+    const predefinedReasons = AbuseModel.getPredefinedReasonsStrings(this.predefinedReasons)
+
+    const object = this.VideoAbuse?.Video?.url || this.VideoCommentAbuse?.VideoComment?.url || this.FlaggedAccount.Actor.url
+
+    const startAt = this.VideoAbuse?.startAt
+    const endAt = this.VideoAbuse?.endAt
+
+    return {
+      type: 'Flag' as 'Flag',
+      content: this.reason,
+      object,
+      tag: predefinedReasons.map(r => ({
+        type: 'Hashtag' as 'Hashtag',
+        name: r
+      })),
+      startAt,
+      endAt
+    }
+  }
+
+  private static getStateLabel (id: number) {
+    return ABUSE_STATES[id] || 'Unknown'
+  }
+
+  private static getPredefinedReasonsStrings (predefinedReasons: AbusePredefinedReasons[]): AbusePredefinedReasonsString[] {
+    return (predefinedReasons || [])
+      .filter(r => r in AbusePredefinedReasons)
+      .map(r => invert(abusePredefinedReasonsMap)[r] as AbusePredefinedReasonsString)
+  }
+}