Initial commit

src/function/sync/apply-actions/dispatch-parent-action/setparentcategory.ts

@@ -0,0 +1,80 @@
+/*
+ * 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 { SetParentCategoryAction } from '../../../../action'
+import { Cache } from '../cache'
+
+export async function dispatchSetParentCategory ({ action, cache }: {
+  action: SetParentCategoryAction
+  cache: Cache
+}) {
+  const categoryEntry = await cache.database.category.findOne({
+    where: {
+      familyId: cache.familyId,
+      categoryId: action.categoryId
+    },
+    transaction: cache.transaction
+  })
+
+  if (!categoryEntry) {
+    throw new Error('tried to set parent category of non existent category')
+  }
+
+  if (action.parentCategory !== '') {
+    const parentCategoryEntry = await cache.database.category.findOne({
+      where: {
+        familyId: cache.familyId,
+        categoryId: action.parentCategory,
+        childId: categoryEntry.childId
+      },
+      transaction: cache.transaction
+    })
+
+    if (!parentCategoryEntry) {
+      throw new Error('tried to set parent category to non existent category')
+    }
+
+    if (parentCategoryEntry.parentCategoryId !== '') {
+      throw new Error('tried to set a category as parent which itself has got a parent')
+    }
+
+    const countChildCategories = await cache.database.category.findAndCountAll({
+      where: {
+        familyId: cache.familyId,
+        parentCategoryId: action.categoryId
+      },
+      transaction: cache.transaction
+    })
+
+    if (countChildCategories.count > 0) {
+      throw new Error('tried to make category a child category altough it is already a parent category')
+    }
+  }
+
+  await cache.database.category.update({
+    parentCategoryId: action.parentCategory
+  }, {
+    where: {
+      familyId: cache.familyId,
+      categoryId: action.categoryId
+    },
+    transaction: cache.transaction
+  })
+
+  cache.categoriesWithModifiedBaseData.push(action.categoryId)
+  cache.areChangesImportant = true
+}