Improve data source encoding

apps/api/src/helper/data-source.helper.ts

@@ -1,4 +1,21 @@
 import { DataSource } from '@prisma/client';
+import { createHash } from 'node:crypto';
+
+const decodedDataSourceMap: Record<string, DataSource> = Object.values(
+  DataSource
+).reduce((map, dataSource) => {
+  map[encodeDataSource(dataSource)] = dataSource;
+
+  return map;
+}, {});
+
+export function encodeDataSource(aDataSource: DataSource) {
+  if (!aDataSource) {
+    return undefined;
+  }
+
+  return createHash('sha256').update(aDataSource).digest('hex').slice(0, 8);
+}
 
 export function getMaskedGhostfolioDataSource({
   dataSource,
@@ -11,3 +28,9 @@ export function getMaskedGhostfolioDataSource({
     ? DataSource.GHOSTFOLIO
     : dataSource;
 }
+
+export function decodeDataSource(encodedDataSource: string) {
+  return encodedDataSource
+    ? decodedDataSourceMap[encodedDataSource]
+    : undefined;
+}