From a67b74cae0a9abe280bcbbb14fe4a9a6c0cb2549 Mon Sep 17 00:00:00 2001
From: Moriz Wahl <moriz.wahl@gmx.de>
Date: Thu, 24 Sep 2020 17:24:27 +0200
Subject: [PATCH] backend for export user data

---
 .../src/middleware/permissionsMiddleware.js   |  1 +
 backend/src/schema/resolvers/userData.js      | 33 +++++++++++++++++++
 backend/src/schema/types/type/UserData.gql    | 10 ++++++
 3 files changed, 44 insertions(+)
 create mode 100644 backend/src/schema/resolvers/userData.js
 create mode 100644 backend/src/schema/types/type/UserData.gql

diff --git a/backend/src/middleware/permissionsMiddleware.js b/backend/src/middleware/permissionsMiddleware.js
index 2c8d7ff63..f4f8c654b 100644
--- a/backend/src/middleware/permissionsMiddleware.js
+++ b/backend/src/middleware/permissionsMiddleware.js
@@ -105,6 +105,7 @@ export default shield(
       blockedUsers: isAuthenticated,
       notifications: isAuthenticated,
       Donations: isAuthenticated,
+      userData: isAuthenticated,
     },
     Mutation: {
       '*': deny,
diff --git a/backend/src/schema/resolvers/userData.js b/backend/src/schema/resolvers/userData.js
new file mode 100644
index 000000000..98e0e700e
--- /dev/null
+++ b/backend/src/schema/resolvers/userData.js
@@ -0,0 +1,33 @@
+import log from './helpers/databaseLogger'
+
+export default {
+  Query: {
+    userData: async (object, args, context, resolveInfo) => {
+      const id = context.user.id
+      const cypher = `
+        MATCH (u:User { id: $id })
+        WITH u AS user
+        MATCH (p:Post)
+        WHERE (p)<-[:COMMENTS]-(:Comment)<-[:WROTE]-(user)
+        OR (user)-[:WROTE]->(p)
+        RETURN { user: properties(user), posts: collect(properties(p)) }
+        AS result
+      `
+      const session = context.driver.session()
+      const resultPromise = session.readTransaction(async (transaction) => {
+        const transactionResponse = transaction.run(cypher, {
+          id,
+        })
+        return transactionResponse
+      })
+
+      try {
+        const result = await resultPromise
+        log(result.records[0].get('result'))
+        return result.records[0].get('result')
+      } finally {
+        session.close()
+      }
+    },
+  },
+}
diff --git a/backend/src/schema/types/type/UserData.gql b/backend/src/schema/types/type/UserData.gql
new file mode 100644
index 000000000..60ad5c12f
--- /dev/null
+++ b/backend/src/schema/types/type/UserData.gql
@@ -0,0 +1,10 @@
+type UserData {
+  user: User!
+  posts: [Post]
+}
+
+type Query {
+  userData(
+    id: ID
+  ): UserData
+}