Add new status message system

src/function/statusmessage/index.ts

@@ -0,0 +1,48 @@
+/*
+ * server component for the TimeLimit App
+ * Copyright (C) 2019 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 } from '../../database'
+import { configItemIds } from '../../database/config'
+import * as Sequelize from 'sequelize'
+
+export const getStatusMessage = async ({ database, transaction }: {
+  database: Database
+  transaction?: Sequelize.Transaction
+}) => {
+  const currentStatusMessageItem = await database.config.findById(configItemIds.statusMessage, { transaction })
+  const currentStatusMessage = (currentStatusMessageItem ? currentStatusMessageItem.value : null) || ''
+
+  return currentStatusMessage
+}
+
+export const setStatusMessage = async ({ database, newStatusMessage }: {
+  database: Database
+  newStatusMessage: string
+}) => {
+  if (newStatusMessage === '') {
+    await database.config.destroy({
+      where: {
+        id: configItemIds.statusMessage
+      }
+    })
+  } else {
+    await database.config.insertOrUpdate({
+      id: configItemIds.statusMessage,
+      value: newStatusMessage
+    })
+  }
+}