/*
 * server component for the TimeLimit App
 * Copyright (C) 2019 - 2020 Jonas Lochmann
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Affero General Public License as
 * published by the Free Software Foundation, version 3 of the License.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU Affero General Public License for more details.
 *
 * You should have received a copy of the GNU Affero General Public License
 * along with this program.  If not, see <https://www.gnu.org/licenses/>.
 */

import { Database, Transaction, warpPromiseReturner } from '../../database'
import { mailNotificationFlags } from '../../database/user'
import { sendTaskDoneMail } from '../../util/mail'
import { canSendTaskDoneMail } from '../../util/ratelimit-taskdonemail'

export const sendTaskDoneMails = async ({ database, familyId, childName, taskTitle, transaction }: {
  database: Database
  familyId: string
  childName: string
  taskTitle: string
  transaction: Transaction
}) => {
  const parentEntries = await database.user.findAll({
    where: {
      familyId,
      type: 'parent'
    },
    transaction
  })

  const targetMailAddresses = parentEntries
    .filter((item) => item.mail !== '')
    .filter((item) => (item.mailNotificationFlags & mailNotificationFlags.tasks) === mailNotificationFlags.tasks)
    .map((item) => item.mail)

  transaction.afterCommit(warpPromiseReturner(async () => {
    await Promise.all(
      targetMailAddresses.map(async (receiver) => {
        if (await canSendTaskDoneMail(receiver)) {
          await sendTaskDoneMail({ receiver, child: childName, task: taskTitle })
        }
      })
    )
  }))
}