Implement auto tag on comments and videos

* Comments and videos can be automatically tagged using core rules or
   watched word lists
 * These tags can be used to automatically filter videos and comments
 * Introduce a new video comment policy where comments must be approved
   first
 * Comments may have to be approved if the user auto block them using
   core rules or watched word lists
 * Implement FEP-5624 to federate reply control policies

server/core/models/shared/query.ts

@@ -1,17 +1,26 @@
-import { BindOrReplacements, Op, QueryTypes, Sequelize } from 'sequelize'
+import { forceNumber } from '@peertube/peertube-core-utils'
+import { BindOrReplacements, Op, QueryOptionsWithType, QueryTypes, Sequelize, Transaction } from 'sequelize'
 import { Fn } from 'sequelize/types/utils'
 import validator from 'validator'
-import { forceNumber } from '@peertube/peertube-core-utils'
 
-function doesExist (sequelize: Sequelize, query: string, bind?: BindOrReplacements) {
-  const options = {
-    type: QueryTypes.SELECT as QueryTypes.SELECT,
+async function doesExist (options: {
+  sequelize: Sequelize
+  query: string
+  bind?: BindOrReplacements
+  transaction?: Transaction
+}) {
+  const { sequelize, query, bind, transaction } = options
+
+  const queryOptions: QueryOptionsWithType<QueryTypes.SELECT> = {
+    type: QueryTypes.SELECT,
     bind,
-    raw: true
+    raw: true,
+    transaction
   }
 
-  return sequelize.query(query, options)
-            .then(results => results.length === 1)
+  const results = await sequelize.query(query, queryOptions)
+
+  return results.length === 1
 }
 
 // FIXME: have to specify the result type to not break peertube typings generation
@@ -64,13 +73,8 @@ function searchAttribute (sourceField?: string, targetField?: string) {
 }
 
 export {
-  doesExist,
-  createSimilarityAttribute,
-  buildWhereIdOrUUID,
-  parseAggregateResult,
-  parseRowCountResult,
-  createSafeIn,
-  searchAttribute
+  buildWhereIdOrUUID, createSafeIn, createSimilarityAttribute, doesExist, parseAggregateResult,
+  parseRowCountResult, searchAttribute
 }
 
 // ---------------------------------------------------------------------------