feat: introduce app configs with shared auth clients (#1213)

packages/backend/src/graphql/mutations/create-connection.ts

@@ -1,13 +1,16 @@
-import App from '../../models/app';
-import Context from '../../types/express/context';
 import { IJSONObject } from '@automatisch/types';
+import App from '../../models/app';
+import AppConfig from '../../models/app-config';
+import Context from '../../types/express/context';
 
 type Params = {
   input: {
     key: string;
+    appAuthClientId: string;
     formattedData: IJSONObject;
   };
 };
+
 const createConnection = async (
   _parent: unknown,
   params: Params,
@@ -15,13 +18,42 @@ const createConnection = async (
 ) => {
   context.currentUser.can('create', 'Connection');
 
-  await App.findOneByKey(params.input.key);
+  const { key, appAuthClientId } = params.input;
 
-  return await context.currentUser.$relatedQuery('connections').insert({
-    key: params.input.key,
-    formattedData: params.input.formattedData,
-    verified: false,
-  });
+  const app = await App.findOneByKey(key);
+
+  const appConfig = await AppConfig.query().findOne({ key });
+
+  let formattedData = params.input.formattedData;
+  if (appConfig) {
+    if (appConfig.disabled) throw new Error('This application has been disabled for new connections!');
+
+    if (!appConfig.allowCustomConnection && formattedData) throw new Error(`Custom connections cannot be created for ${app.name}!`);
+
+    if (appConfig.shared && !formattedData) {
+      const authClient = await appConfig
+        .$relatedQuery('appAuthClients')
+        .findById(appAuthClientId)
+        .where({
+          active: true
+        })
+        .throwIfNotFound();
+
+      formattedData = authClient.formattedAuthDefaults;
+    }
+  }
+
+  const createdConnection = await context
+    .currentUser
+    .$relatedQuery('connections')
+    .insert({
+      key,
+      appAuthClientId,
+      formattedData,
+      verified: false,
+    });
+
+  return createdConnection;
 };
 
 export default createConnection;