HBE-326 feature: server configuration through GraphQL API (#3591)

* feat: restart cmd added in aio service

* feat: nestjs config package added

* test: fix all broken test case

* feat: infra config module add with get-update-reset functionality

* test: fix test case failure

* feat: update infra configs mutation added

* feat: utilise ConfigService in util functions

* chore: remove saml stuff

* feat: removed saml stuffs

* fix: config service precedence

* fix: mailer module init with right env value

* feat: added mutations and query

* feat: add query infra-configs

* fix: mailer module init issue

* chore: smtp url validation added

* fix: all sso disabling is handled

* fix: pnpm i without db connection

* fix: allowedAuthProviders and enableAndDisableSSO

* fix: validateSMTPUrl check

* feat: get api added for fetch provider list

* feat: feedback resolve

* chore: update code comments

* fix: uppercase issue of VITE_ALLOWED_AUTH_PROVIDERS

* chore: update lockfile

* fix: add validation checks for MAILER_ADDRESS_FROM

* test: fix test case

* chore: feedback resolve

* chore: renamed an enum

* chore: app shutdown way changed

---------

Co-authored-by: Andrew Bastin <andrewbastin.k@gmail.com>

packages/hoppscotch-backend/src/infra-config/helper.ts

@@ -0,0 +1,44 @@
+import { PrismaService } from 'src/prisma/prisma.service';
+
+export enum ServiceStatus {
+  ENABLE = 'ENABLE',
+  DISABLE = 'DISABLE',
+}
+
+/**
+ * Load environment variables from the database and set them in the process
+ *
+ * @Description Fetch the 'infra_config' table from the database and return it as an object
+ * (ConfigModule will set the environment variables in the process)
+ */
+export async function loadInfraConfiguration() {
+  try {
+    const prisma = new PrismaService();
+
+    const infraConfigs = await prisma.infraConfig.findMany();
+
+    let environmentObject: Record<string, any> = {};
+    infraConfigs.forEach((infraConfig) => {
+      environmentObject[infraConfig.name] = infraConfig.value;
+    });
+
+    return { INFRA: environmentObject };
+  } catch (error) {
+    // Prisma throw error if 'Can't reach at database server' OR 'Table does not exist'
+    // Reason for not throwing error is, we want successful build during 'postinstall' and generate dist files
+    return { INFRA: {} };
+  }
+}
+
+/**
+ * Stop the app after 5 seconds
+ * (Docker will re-start the app)
+ */
+export function stopApp() {
+  console.log('Stopping app in 5 seconds...');
+
+  setTimeout(() => {
+    console.log('Stopping app now...');
+    process.kill(process.pid, 'SIGTERM');
+  }, 5000);
+}