Initial commit

src/function/sync/apply-actions/dispatch-app-logic-action/addusedtime.ts

@@ -0,0 +1,129 @@
+/*
+ * 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 * as Sequelize from 'sequelize'
+import { AddUsedTimeAction } from '../../../../action'
+import { Cache } from '../cache'
+
+const getRoundedTimestamp = () => {
+  const now = Date.now()
+
+  return now - (now % (1000 * 60 * 60 * 24 * 2 /* 2 days */))
+}
+
+export async function dispatchAddUsedTime ({ deviceId, action, cache }: {
+  deviceId: string
+  action: AddUsedTimeAction
+  cache: Cache
+}) {
+  const roundedTimestamp = getRoundedTimestamp().toString(10)
+
+  const categoryEntryUnsafe = await cache.database.category.findOne({
+    where: {
+      familyId: cache.familyId,
+      categoryId: action.categoryId
+    },
+    transaction: cache.transaction,
+    attributes: [
+      'childId',
+      'parentCategoryId',
+      'extraTimeInMillis'
+    ]
+  })
+  // verify that the category exists
+  if (!categoryEntryUnsafe) {
+    throw new Error('invalid category id')
+  }
+
+  const categoryEntry = {
+    childId: categoryEntryUnsafe.childId,
+    parentCategoryId: categoryEntryUnsafe.parentCategoryId,
+    extraTimeInMillis: categoryEntryUnsafe.extraTimeInMillis
+  }
+
+  const handleAddUsedTime = async ({ categoryId, currentExtraTime }: {
+    categoryId: string,
+    currentExtraTime: number
+  }) => {
+    if (action.timeToAdd !== 0) {
+      // try to update first
+      const [updatedRows] = await cache.database.usedTime.update({
+        usedTime: Sequelize.literal(`usedTime + ${action.timeToAdd}`) as any,
+        lastUpdate: roundedTimestamp
+      }, {
+        where: {
+          familyId: cache.familyId,
+          categoryId: categoryId,
+          dayOfEpoch: action.dayOfEpoch
+        },
+        transaction: cache.transaction
+      })
+
+      // otherwise create
+      if (updatedRows === 0) {
+        await cache.database.usedTime.create({
+          familyId: cache.familyId,
+          categoryId: categoryId,
+          dayOfEpoch: action.dayOfEpoch,
+          usedTime: action.timeToAdd,
+          lastUpdate: roundedTimestamp
+        }, {
+          transaction: cache.transaction
+        })
+      }
+    }
+
+    if (action.extraTimeToSubtract !== 0) {
+      await cache.database.category.update({
+        extraTimeInMillis: Math.max(0, currentExtraTime - action.extraTimeToSubtract)
+      }, {
+        where: {
+          familyId: cache.familyId,
+          categoryId: categoryId
+        },
+        transaction: cache.transaction
+      })
+
+      cache.categoriesWithModifiedBaseData.push(categoryId)
+    }
+
+    cache.categoriesWithModifiedUsedTimes.push(categoryId)
+  }
+
+  await handleAddUsedTime({
+    categoryId: action.categoryId,
+    currentExtraTime: categoryEntry.extraTimeInMillis
+  })
+
+  if (categoryEntry.parentCategoryId !== '') {
+    const parentCategoryEntry = await cache.database.category.findOne({
+      where: {
+        familyId: cache.familyId,
+        categoryId: categoryEntry.parentCategoryId,
+        childId: categoryEntry.childId
+      },
+      transaction: cache.transaction
+    })
+
+    if (parentCategoryEntry) {
+      await handleAddUsedTime({
+        categoryId: categoryEntry.parentCategoryId,
+        currentExtraTime: parentCategoryEntry.extraTimeInMillis
+      })
+    }
+  }
+}