1 files changed, 63 insertions, 0 deletions
diff --git a/packages/backend/src/GlobalModule.ts b/packages/backend/src/GlobalModule.ts
new file mode 100644
index 0000000000..dbc5c698df
--- /dev/null
+++ b/packages/backend/src/GlobalModule.ts
@@ -0,0 +1,63 @@
+import { Global, Inject, Module } from '@nestjs/common';
+import { Redis } from 'ioredis';
+import { DataSource } from 'typeorm';
+import { createRedisConnection } from '@/redis.js';
+import { DI } from './di-symbols.js';
+import { loadConfig } from './config.js';
+import { createPostgreDataSource } from './postgre.js';
+import { RepositoryModule } from './RepositoryModule.js';
+import type { Provider, OnApplicationShutdown } from '@nestjs/common';
+
+const config = loadConfig();
+
+const $config: Provider = {
+	provide: DI.config,
+	useValue: config,
+};
+
+const $db: Provider = {
+	provide: DI.db,
+	useFactory: async () => {
+		const db = createPostgreDataSource();
+		return await db.initialize();
+	},
+};
+
+const $redis: Provider = {
+	provide: DI.redis,
+	useFactory: () => {
+		const redisClient = createRedisConnection();
+		return redisClient;
+	},
+};
+
+const $redisSubscriber: Provider = {
+	provide: DI.redisSubscriber,
+	useFactory: () => {
+		const redisSubscriber = createRedisConnection();
+		redisSubscriber.subscribe(config.host);
+		return redisSubscriber;
+	},
+};
+
+@Global()
+@Module({
+	imports: [RepositoryModule],
+	providers: [$config, $db, $redis, $redisSubscriber],
+	exports: [$config, $db, $redis, $redisSubscriber, RepositoryModule],
+})
+export class GlobalModule implements OnApplicationShutdown {
+	constructor(
+		@Inject(DI.db) private db: DataSource,
+		@Inject(DI.redis) private redisClient: Redis,
+		@Inject(DI.redisSubscriber) private redisSubscriber: Redis,
+	) {}
+
+	async onApplicationShutdown(signal: string): Promise<void> {
+		await Promise.all([
+			this.db.destroy(),
+			this.redisClient.disconnect(),
+			this.redisSubscriber.disconnect(),
+		]);
+	}
+}