Hellion/server/core/lib/blocklist.ts

import { sequelizeTypescript } from '@server/initializers/database.js'
import { getServerActor } from '@server/models/application/application.js'
import { MAccountBlocklist, MAccountId, MAccountHost, MServerBlocklist } from '@server/types/models/index.js'
import { AccountBlocklistModel } from '../models/account/account-blocklist.js'
import { ServerBlocklistModel } from '../models/server/server-blocklist.js'
import { UserNotificationModel } from '@server/models/user/user-notification.js'
import { logger } from '@server/helpers/logger.js'

async function addAccountInBlocklist (options: {
  byAccountId: number
  targetAccountId: number

  removeNotificationOfUserId: number | null // If blocked by a user
}) {
  const { byAccountId, targetAccountId, removeNotificationOfUserId } = options

  await sequelizeTypescript.transaction(async t => {
    return AccountBlocklistModel.upsert({
      accountId: byAccountId,
      targetAccountId
    }, { transaction: t })
  })

  UserNotificationModel.removeNotificationsOf({
    id: targetAccountId,
    type: 'account',
    forUserId: removeNotificationOfUserId
  }).catch(err => logger.error('Cannot remove notifications after an account mute.', { err }))
}

async function addServerInBlocklist (options: {
  byAccountId: number
  targetServerId: number

  removeNotificationOfUserId: number | null
}) {
  const { byAccountId, targetServerId, removeNotificationOfUserId } = options

  await sequelizeTypescript.transaction(async t => {
    return ServerBlocklistModel.upsert({
      accountId: byAccountId,
      targetServerId
    }, { transaction: t })
  })

  UserNotificationModel.removeNotificationsOf({
    id: targetServerId,
    type: 'server',
    forUserId: removeNotificationOfUserId
  }).catch(err => logger.error('Cannot remove notifications after a server mute.', { err }))
}

function removeAccountFromBlocklist (accountBlock: MAccountBlocklist) {
  return sequelizeTypescript.transaction(async t => {
    return accountBlock.destroy({ transaction: t })
  })
}

function removeServerFromBlocklist (serverBlock: MServerBlocklist) {
  return sequelizeTypescript.transaction(async t => {
    return serverBlock.destroy({ transaction: t })
  })
}

async function isBlockedByServerOrAccount (targetAccount: MAccountHost, userAccount?: MAccountId) {
  const serverAccountId = (await getServerActor()).Account.id
  const sourceAccounts = [ serverAccountId ]

  if (userAccount) sourceAccounts.push(userAccount.id)

  const accountMutedHash = await AccountBlocklistModel.isAccountMutedByAccounts(sourceAccounts, targetAccount.id)
  if (accountMutedHash[serverAccountId] || (userAccount && accountMutedHash[userAccount.id])) {
    return true
  }

  const instanceMutedHash = await ServerBlocklistModel.isServerMutedByAccounts(sourceAccounts, targetAccount.Actor.serverId)
  if (instanceMutedHash[serverAccountId] || (userAccount && instanceMutedHash[userAccount.id])) {
    return true
  }

  return false
}

export {
  addAccountInBlocklist,
  addServerInBlocklist,
  removeAccountFromBlocklist,
  removeServerFromBlocklist,
  isBlockedByServerOrAccount
}