fix: Fix corrupt database, Add soundcloud and spotify embeds

server/src/db/database.ts

@@ -1,4 +1,6 @@
+import { randomBytes } from 'crypto';
 import fs from 'fs';
+import fsp from 'fs/promises';
 import path from 'path';
 import { DataSource } from 'typeorm';
 import {
@@ -101,6 +103,23 @@ function resolveSqlJsConfig(): { locateFile: (file: string) => string } {
   };
 }
 
+/**
+ * Write the database to disk atomically: write a temp file first,
+ * then rename it over the real file. rename() is atomic on the same
+ * filesystem, so a crash mid-write can never leave a half-written DB.
+ */
+async function atomicSave(data: Uint8Array): Promise<void> {
+  const tmpPath = DB_FILE + '.tmp-' + randomBytes(6).toString('hex');
+
+  try {
+    await fsp.writeFile(tmpPath, Buffer.from(data));
+    await fsp.rename(tmpPath, DB_FILE);
+  } catch (err) {
+    await fsp.unlink(tmpPath).catch(() => {});
+    throw err;
+  }
+}
+
 export function getDataSource(): DataSource {
   if (!applicationDataSource?.isInitialized) {
     throw new Error('DataSource not initialised');
@@ -136,7 +155,7 @@ export async function initDatabase(): Promise<void> {
       synchronize: process.env.DB_SYNCHRONIZE === 'true',
       logging: false,
       autoSave: true,
-      location: DB_FILE,
+      autoSaveCallback: atomicSave,
       sqlJsConfig: resolveSqlJsConfig()
     });
   } catch (error) {