Refactor notifier

server/lib/notifier/shared/follow/auto-follow-for-instance.ts

@@ -0,0 +1,51 @@
+import { logger } from '@server/helpers/logger'
+import { UserModel } from '@server/models/user/user'
+import { UserNotificationModel } from '@server/models/user/user-notification'
+import { MActorFollowFull, MUserDefault, MUserWithNotificationSetting, UserNotificationModelForApi } from '@server/types/models'
+import { UserNotificationType, UserRight } from '@shared/models'
+import { AbstractNotification } from '../common/abstract-notification'
+
+export class AutoFollowForInstance extends AbstractNotification <MActorFollowFull> {
+  private admins: MUserDefault[]
+
+  async prepare () {
+    this.admins = await UserModel.listWithRight(UserRight.MANAGE_SERVER_FOLLOW)
+  }
+
+  log () {
+    logger.info('Notifying %d administrators of auto instance following: %s.', this.admins.length, this.actorFollow.ActorFollowing.url)
+  }
+
+  getSetting (user: MUserWithNotificationSetting) {
+    return user.NotificationSetting.autoInstanceFollowing
+  }
+
+  getTargetUsers () {
+    return this.admins
+  }
+
+  async createNotification (user: MUserWithNotificationSetting) {
+    const notification = await UserNotificationModel.create<UserNotificationModelForApi>({
+      type: UserNotificationType.AUTO_INSTANCE_FOLLOWING,
+      userId: user.id,
+      actorFollowId: this.actorFollow.id
+    })
+    notification.ActorFollow = this.actorFollow
+
+    return notification
+  }
+
+  async createEmail (to: string) {
+    const instanceUrl = this.actorFollow.ActorFollowing.url
+
+    return {
+      to,
+      subject: 'Auto instance following',
+      text: `Your instance automatically followed a new instance: <a href="${instanceUrl}">${instanceUrl}</a>.`
+    }
+  }
+
+  private get actorFollow () {
+    return this.payload
+  }
+}