/*
 * 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 { UpdateCategoryTitleAction } from '../../../../action'
import { Cache } from '../cache'
import { MissingCategoryException } from '../exception/missing-item'

export async function dispatchUpdateCategoryTitle ({ action, cache }: {
  action: UpdateCategoryTitleAction
  cache: Cache
}) {
  const oldCategory = await cache.database.category.findOne({
    where: {
      familyId: cache.familyId,
      categoryId: action.categoryId
    },
    transaction: cache.transaction
  })

  if (!oldCategory) {
    throw new MissingCategoryException()
  }

  const [affectedRows] = await cache.database.category.update({
    title: action.newTitle
  }, {
    where: {
      familyId: cache.familyId,
      categoryId: action.categoryId
    },
    transaction: cache.transaction
  })

  if (affectedRows !== 0) {
    cache.categoriesWithModifiedBaseData.push(action.categoryId)
    cache.areChangesImportant = true
  }
}